Merge branch 'development' into LYN-5265_state_tracker_impl

Code/Framework/AzCore/AzCore/Asset/AssetJsonSerializer.cpp

@@ -173,6 +173,7 @@ namespace AZ
 
             if (assetTracker)
             {
+                assetTracker->FixUpAsset(*instance);
                 assetTracker->AddAsset(*instance);
             }
 
@@ -185,7 +186,20 @@ namespace AZ
             return context.Report(result, message);
         }
 
-        void SerializedAssetTracker::AddAsset(Asset<AssetData>& asset)
+        void SerializedAssetTracker::SetAssetFixUp(AssetFixUp assetFixUpCallback)
+        {
+            m_assetFixUpCallback = AZStd::move(assetFixUpCallback);
+        }
+
+        void SerializedAssetTracker::FixUpAsset(Asset<AssetData>& asset)
+        {
+            if (m_assetFixUpCallback)
+            {
+                m_assetFixUpCallback(asset);
+            }
+        }
+
+        void SerializedAssetTracker::AddAsset(Asset<AssetData> asset)
         {
             m_serializedAssets.emplace_back(asset);
         }
@@ -199,5 +213,6 @@ namespace AZ
         {
             return m_serializedAssets;
         }
+
     } // namespace Data
 } // namespace AZ

Code/Framework/AzCore/AzCore/Asset/AssetJsonSerializer.h

@@ -39,13 +39,18 @@ namespace AZ
         {
         public:
             AZ_RTTI(SerializedAssetTracker, "{1E067091-8C0A-44B1-A455-6E97663F6963}");
+            using AssetFixUp = AZStd::function<void(Asset<AssetData>& asset)>;
 
-            void AddAsset(Asset<AssetData>& asset);
+            void SetAssetFixUp(AssetFixUp assetFixUpCallback);
+            void FixUpAsset(Asset<AssetData>& asset);
+
+            void AddAsset(Asset<AssetData> asset);
             AZStd::vector<Asset<AssetData>>& GetTrackedAssets();
             const AZStd::vector<Asset<AssetData>>& GetTrackedAssets() const;
 
         private:
             AZStd::vector<Asset<AssetData>> m_serializedAssets;
+            AssetFixUp m_assetFixUpCallback;
         };
     } // namespace Data
 } // namespace AZ

Code/Framework/AzCore/AzCore/Console/Console.cpp

@@ -476,15 +476,16 @@ namespace AZ
 
         // Responsible for using the Json Serialization Issue Callback system
         // to determine when a JSON Patch or JSON Merge Patch modifies a value
-        // at a path underneath the IConsole::ConsoleRootCommandKey JSON pointer
+        // at a path underneath the IConsole::ConsoleRuntimeCommandKey JSON pointer
         JsonSerializationResult::ResultCode operator()(AZStd::string_view message,
             JsonSerializationResult::ResultCode result, AZStd::string_view path)
         {
-            AZ::IO::PathView consoleRootCommandKey{ IConsole::ConsoleRootCommandKey, AZ::IO::PosixPathSeparator };
+            constexpr AZ::IO::PathView consoleRootCommandKey{ IConsole::ConsoleRuntimeCommandKey, AZ::IO::PosixPathSeparator };
+            constexpr AZ::IO::PathView consoleAutoexecCommandKey{ IConsole::ConsoleAutoexecCommandKey, AZ::IO::PosixPathSeparator };
             AZ::IO::PathView inputKey{ path, AZ::IO::PosixPathSeparator };
             if (result.GetTask() == JsonSerializationResult::Tasks::Merge
                 && result.GetProcessing() == JsonSerializationResult::Processing::Completed
-                && inputKey.IsRelativeTo(consoleRootCommandKey))
+                && (inputKey.IsRelativeTo(consoleRootCommandKey) || inputKey.IsRelativeTo(consoleAutoexecCommandKey)))
             {
                 if (auto type = m_settingsRegistry.GetType(path); type != SettingsRegistryInterface::Type::NoType)
                 {
@@ -510,12 +511,24 @@ namespace AZ
         {
             using FixedValueString = AZ::SettingsRegistryInterface::FixedValueString;
 
-            AZ::IO::PathView consoleRootCommandKey{ IConsole::ConsoleRootCommandKey, AZ::IO::PosixPathSeparator };
+            constexpr AZ::IO::PathView consoleRuntimeCommandKey{ IConsole::ConsoleRuntimeCommandKey, AZ::IO::PosixPathSeparator };
+            constexpr AZ::IO::PathView consoleAutoexecCommandKey{ IConsole::ConsoleAutoexecCommandKey, AZ::IO::PosixPathSeparator };
             AZ::IO::PathView inputKey{ path, AZ::IO::PosixPathSeparator };
-            // The ConsoleRootComamndKey is not a command itself so strictly children keys are being examined
-            if (inputKey.IsRelativeTo(consoleRootCommandKey) && inputKey != consoleRootCommandKey)
+
+            // Abuses the IsRelativeToFuncton function of the path class to extract the console
+            // command from the settings registry objects
+            FixedValueString command;
+            if (inputKey != consoleRuntimeCommandKey && inputKey.IsRelativeTo(consoleRuntimeCommandKey))
+            {
+                command = inputKey.LexicallyRelative(consoleRuntimeCommandKey).Native();
+            }
+            else if (inputKey != consoleAutoexecCommandKey && inputKey.IsRelativeTo(consoleAutoexecCommandKey))
+            {
+                command = inputKey.LexicallyRelative(consoleAutoexecCommandKey).Native();
+            }
+
+            if (!command.empty())
             {
-                FixedValueString command = inputKey.LexicallyRelative(consoleRootCommandKey).Native();
                 ConsoleCommandContainer commandArgs;
                 // Argument string which stores the value from the Settings Registry long enough
                 // to pass into the PerformCommand. The ConsoleCommandContainer stores string_views
@@ -603,9 +616,10 @@ namespace AZ
 
     void Console::RegisterCommandInvokerWithSettingsRegistry(AZ::SettingsRegistryInterface& settingsRegistry)
     {
-        // Make sure the there is a JSON object at the path of AZ::IConsole::ConsoleRootCommandKey
+        // Make sure the there is a JSON object at the ConsoleRuntimeCommandKey or ConsoleAutoexecKey
         // So that JSON Patch is able to add values underneath that object (JSON Patch doesn't create intermediate objects)
-        settingsRegistry.MergeSettings(R"({ "Amazon": { "AzCore": { "Runtime": { "ConsoleCommands": {} } }}})",
+        settingsRegistry.MergeSettings(R"({ "Amazon": { "AzCore": { "Runtime": { "ConsoleCommands": {} } } })"
+            R"(,"O3DE": { "Autoexec": { "ConsoleCommands": {} } } })",
             SettingsRegistryInterface::Format::JsonMergePatch);
         m_consoleCommandKeyHandler = settingsRegistry.RegisterNotifier(ConsoleCommandKeyNotificationHandler{ settingsRegistry, *this });
 

Code/Framework/AzCore/AzCore/Console/IConsole.h

@@ -31,7 +31,8 @@ namespace AZ
 
         using FunctorVisitor = AZStd::function<void(ConsoleFunctorBase*)>;
 
-        inline static constexpr AZStd::string_view ConsoleRootCommandKey = "/Amazon/AzCore/Runtime/ConsoleCommands";
+        inline static constexpr AZStd::string_view ConsoleRuntimeCommandKey = "/Amazon/AzCore/Runtime/ConsoleCommands";
+        inline static constexpr AZStd::string_view ConsoleAutoexecCommandKey = "/O3DE/Autoexec/ConsoleCommands";
 
         IConsole() = default;
         virtual ~IConsole() = default;

Code/Framework/AzCore/AzCore/Debug/Trace.cpp

@@ -224,6 +224,8 @@ namespace AZ
 
     void Debug::Trace::Terminate(int exitCode)
     {
+        AZ_TracePrintf("Exit", "Called Terminate() with exit code: 0x%x", exitCode);
+        AZ::Debug::Trace::PrintCallstack("Exit");
         Platform::Terminate(exitCode);
     }
 

Code/Framework/AzCore/AzCore/EBus/BusImpl.h

@@ -160,8 +160,8 @@ namespace AZ
             /**
              * Locking primitive that is used when executing events in the event queue.
              */
-            using EventQueueMutexType = typename AZStd::Utils::if_c<AZStd::is_same<typename Traits::EventQueueMutexType, NullMutex>::value, // if EventQueueMutexType==NullMutex use MutexType otherwise EventQueueMutexType
-                MutexType, typename Traits::EventQueueMutexType>::type;
+            using EventQueueMutexType = AZStd::conditional_t<AZStd::is_same<typename Traits::EventQueueMutexType, NullMutex>::value, // if EventQueueMutexType==NullMutex use MutexType otherwise EventQueueMutexType
+                MutexType, typename Traits::EventQueueMutexType>;
 
             /**
              * Pointer to an address on the bus.
@@ -180,14 +180,22 @@ namespace AZ
              * `<BusName>::ExecuteQueuedEvents()`.
              * By default, the event queue is disabled.
              */
-            static const bool EnableEventQueue = Traits::EnableEventQueue;
-            static const bool EventQueueingActiveByDefault = Traits::EventQueueingActiveByDefault;
-            static const bool EnableQueuedReferences = Traits::EnableQueuedReferences;
+            static constexpr bool EnableEventQueue = Traits::EnableEventQueue;
+            static constexpr bool EventQueueingActiveByDefault = Traits::EventQueueingActiveByDefault;
+            static constexpr bool EnableQueuedReferences = Traits::EnableQueuedReferences;
 
             /**
              * True if the EBus supports more than one address. Otherwise, false.
              */
-            static const bool HasId = Traits::AddressPolicy != EBusAddressPolicy::Single;
+            static constexpr bool HasId = Traits::AddressPolicy != EBusAddressPolicy::Single;
+
+            /**
+            * Template Lock Guard class that wraps around the Mutex
+            * The EBus uses for Dispatching Events.
+            * This is not the EBus Context Mutex if LocklessDispatch is true
+            */
+            template <typename DispatchMutex>
+            using DispatchLockGuard = typename Traits::template DispatchLockGuard<DispatchMutex, Traits::LocklessDispatch>;
         };
 
         /**
@@ -460,7 +468,7 @@ namespace AZ
             using BusPtr = typename Traits::BusPtr;
 
             /**
-             * Helper to queue an event by BusIdType only when function queueing is enabled 
+             * Helper to queue an event by BusIdType only when function queueing is enabled
              * @param id            Address ID. Handlers that are connected to this ID will receive the event.
              * @param func          Function pointer of the event to dispatch.
              * @param args          Function arguments that are passed to each handler.
@@ -581,7 +589,7 @@ namespace AZ
             , public EBusBroadcaster<Bus, Traits>
             , public EBusEventer<Bus, Traits>
             , public EBusEventEnumerator<Bus, Traits>
-            , public AZStd::Utils::if_c<Traits::EnableEventQueue, EBusEventQueue<Bus, Traits>, EBusNullQueue>::type
+            , public AZStd::conditional_t<Traits::EnableEventQueue, EBusEventQueue<Bus, Traits>, EBusNullQueue>
         {
         };
 
@@ -599,7 +607,7 @@ namespace AZ
             : public EventDispatcher<Bus, Traits>
             , public EBusBroadcaster<Bus, Traits>
             , public EBusBroadcastEnumerator<Bus, Traits>
-            , public AZStd::Utils::if_c<Traits::EnableEventQueue, EBusBroadcastQueue<Bus, Traits>, EBusNullQueue>::type
+            , public AZStd::conditional_t<Traits::EnableEventQueue, EBusBroadcastQueue<Bus, Traits>, EBusNullQueue>
         {
         };
 

Code/Framework/AzCore/AzCore/EBus/EBus.h

@@ -236,6 +236,17 @@ namespace AZ
         * code before or after an event.
         */
         using EventProcessingPolicy = EBusEventProcessingPolicy;
+
+        /**
+        * Template Lock Guard class that wraps around the Mutex
+        * The EBus Context uses the LockGuard when dispatching
+        * (either AZStd::scoped_lock<MutexType> or NullLockGuard<MutexType>)
+        * The IsLocklessDispatch bool is there to defer evaluation of the LocklessDispatch constant
+        * Otherwise the value above in EBusTraits.h is always used and not the value
+        * that the derived trait class sets.
+        */
+        template <typename DispatchMutex, bool IsLocklessDispatch>
+        using DispatchLockGuard = AZStd::conditional_t<IsLocklessDispatch, AZ::Internal::NullLockGuard<DispatchMutex>, AZStd::scoped_lock<DispatchMutex>>;
     };
 
     namespace Internal
@@ -496,6 +507,14 @@ namespace AZ
          */
         static const bool HasId = Traits::AddressPolicy != EBusAddressPolicy::Single;
 
+        /**
+        * Template Lock Guard class that wraps around the Mutex
+        * The EBus uses for Dispatching Events.
+        * This is not EBus Context Mutex when LocklessDispatch is set
+        */
+        template <typename DispatchMutex>
+        using DispatchLockGuard = typename ImplTraits::template DispatchLockGuard<DispatchMutex>;
+
         //////////////////////////////////////////////////////////////////////////
         // Check to help identify common mistakes
         /// @cond EXCLUDE_DOCS
@@ -620,11 +639,11 @@ namespace AZ
             using ContextMutexType = AZStd::conditional_t<BusTraits::LocklessDispatch && AZStd::is_same_v<MutexType, AZ::NullMutex>, AZStd::shared_mutex, MutexType>;
 
             /**
-             * The scoped lock guard to use (either AZStd::scoped_lock<MutexType> or NullLockGuard<MutexType>
+             * The scoped lock guard to use
              * during broadcast/event dispatch.
              * @see EBusTraits::LocklessDispatch
              */
-            using DispatchLockGuard = AZStd::conditional_t<BusTraits::LocklessDispatch, AZ::Internal::NullLockGuard<ContextMutexType>, AZStd::scoped_lock<ContextMutexType>>;
+            using DispatchLockGuard = DispatchLockGuard<ContextMutexType>;
 
             /**
             * The scoped lock guard to use during connection.  Some specialized policies execute handler methods which
@@ -704,6 +723,11 @@ namespace AZ
         static Context& GetOrCreateContext(bool trackCallstack=true);
 
         static bool IsInDispatch(Context* context = GetContext(false));
+
+        /**
+         * Returns whether the EBus context is in the middle of a dispatch on the current thread
+        */
+        static bool IsInDispatchThisThread(Context* context = GetContext(false));
         /// @cond EXCLUDE_DOCS
         struct RouterCallstackEntry
             : public CallstackEntry
@@ -1208,6 +1232,13 @@ AZ_POP_DISABLE_WARNING
         return context != nullptr && context->m_dispatches > 0;
     }
 
+    template<class Interface, class Traits>
+    bool EBus<Interface, Traits>::IsInDispatchThisThread(Context* context)
+    {
+        return context != nullptr && context->s_callstack != nullptr
+            && context->s_callstack->m_prev != nullptr;
+    }
+
     //=========================================================================
     template<class Interface, class Traits>
     EBus<Interface, Traits>::RouterCallstackEntry::RouterCallstackEntry(Iterator it, const BusIdType* busId, bool isQueued, bool isReverse)

Code/Framework/AzCore/AzCore/Jobs/JobManagerComponent.cpp

@@ -18,6 +18,14 @@
 #include <AzCore/std/parallel/thread.h>
 #include <AzCore/Math/MathUtils.h>
 
+#include <AzCore/Console/IConsole.h>
+
+#include <AzCore/Threading/ThreadUtils.h>
+
+AZ_CVAR(float, cl_jobThreadsConcurrencyRatio, 0.6f, nullptr, AZ::ConsoleFunctorFlags::Null, "Legacy Job system multiplier on the number of hw threads the machine creates at initialization");
+AZ_CVAR(uint32_t, cl_jobThreadsNumReserved, 2, nullptr, AZ::ConsoleFunctorFlags::Null, "Legacy Job system number of hardware threads that are reserved for O3DE system threads");
+AZ_CVAR(uint32_t, cl_jobThreadsMinNumber, 2, nullptr, AZ::ConsoleFunctorFlags::Null, "Legacy Job system minimum number of worker threads to create after scaling the number of hw threads");
+
 namespace AZ
 {
     //=========================================================================
@@ -46,9 +54,10 @@ namespace AZ
         JobManagerThreadDesc threadDesc;
 
         int numberOfWorkerThreads = m_numberOfWorkerThreads;
-        if (numberOfWorkerThreads <= 0)
+        if (numberOfWorkerThreads <= 0) // spawn default number of threads
         {
-            numberOfWorkerThreads = AZ::GetMin(static_cast<unsigned int>(desc.m_workerThreads.capacity()), AZStd::thread::hardware_concurrency());
+            uint32_t scaledHardwareThreads = Threading::CalcNumWorkerThreads(cl_jobThreadsConcurrencyRatio, cl_jobThreadsMinNumber, cl_jobThreadsNumReserved);
+            numberOfWorkerThreads = AZ::GetMin(static_cast<unsigned int>(desc.m_workerThreads.capacity()), scaledHardwareThreads);
         #if (AZ_TRAIT_MAX_JOB_MANAGER_WORKER_THREADS)
             numberOfWorkerThreads = AZ::GetMin(numberOfWorkerThreads, AZ_TRAIT_MAX_JOB_MANAGER_WORKER_THREADS);
         #endif // (AZ_TRAIT_MAX_JOB_MANAGER_WORKER_THREADS)

Code/Framework/AzCore/AzCore/Jobs/JobManagerDesc.h

@@ -36,7 +36,7 @@ namespace AZ
         */
         int     m_stackSize;
 
-        JobManagerThreadDesc(int cpuId = -1, int priority = -100000, int stackSize = -1)
+        JobManagerThreadDesc(int cpuId = -1, int priority = 0, int stackSize = -1)
             : m_cpuId(cpuId)
             , m_priority(priority)
             , m_stackSize(stackSize)

Code/Framework/AzCore/AzCore/Math/Uuid.cpp

@@ -135,18 +135,12 @@ namespace AZ
         {
             stringLength = strlen(uuidString);
         }
-        if (stringLength > MaxPermissiveStringSize)
-        {
-            if (!skipWarnings)
-            {
-                AZ_Warning("Math", false, "Can't create UUID from string length %zu over maximum %zu", stringLength, MaxPermissiveStringSize);
-            }
-            return Uuid::CreateNull();
-        }
+
         size_t newLength{ 0 };
         char createString[MaxPermissiveStringSize];
 
-        for (size_t curPos = 0; curPos < stringLength; ++curPos)
+        // Loop until we get to the end of the string OR stop once we've accumulated a full UUID string worth of data
+        for (size_t curPos = 0; curPos < stringLength && newLength < ValidUuidStringLength; ++curPos)
         {
             char curChar = uuidString[curPos];
             switch (curChar)

Code/Framework/AzCore/AzCore/Math/Uuid.h

@@ -42,8 +42,9 @@ namespace AZ
             //VER_AZ_RANDOM_CRC32 = 6, // 0 1 1 0
         };
 
+        static constexpr int ValidUuidStringLength = 32; /// Number of characters (data only, no extra formatting) in a valid UUID string
         static const size_t MaxStringBuffer = 39; /// 32 Uuid + 4 dashes + 2 brackets + 1 terminate
-
+        
         Uuid()  {}
         Uuid(const char* string, size_t stringLength = 0) { *this = CreateString(string, stringLength); }
 

Code/Framework/AzCore/AzCore/Settings/SettingsRegistry.h

@@ -204,14 +204,14 @@ namespace AZ
         [[nodiscard]] virtual PreMergeEventHandler RegisterPreMergeEvent(const PreMergeEventCallback& callback) = 0;
         //! Register a function that will be called before a file is merged.
         //! @callback The function to call before a file is merged.
-        [[nodiscard]] virtual PreMergeEventHandler RegisterPreMergeEvent (PreMergeEventCallback&& callback) = 0;
+        [[nodiscard]] virtual PreMergeEventHandler RegisterPreMergeEvent(PreMergeEventCallback&& callback) = 0;
 
         //! Register a function that will be called after a file is merged.
         //! @callback The function to call after a file is merged.
         [[nodiscard]] virtual PostMergeEventHandler RegisterPostMergeEvent(const PostMergeEventCallback& callback) = 0;
         //! Register a function that will be called after a file is merged.
         //! @callback The function to call after a file is merged.
-        [[nodiscard]] virtual PostMergeEventHandler RegisterPostMergeEvent (PostMergeEventCallback&& callback) = 0;
+        [[nodiscard]] virtual PostMergeEventHandler RegisterPostMergeEvent(PostMergeEventCallback&& callback) = 0;
 
         //! Gets the boolean value at the provided path.
         //! @param result The target to write the result to.

Code/Framework/AzCore/AzCore/Settings/SettingsRegistryVisitorUtils.cpp

@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzCore/Settings/SettingsRegistryVisitorUtils.h>
+
+
+namespace AZ::SettingsRegistryVisitorUtils
+{
+    // Field Visitor implementation
+    FieldVisitor::FieldVisitor() = default;
+    FieldVisitor::FieldVisitor(VisitFieldType visitFieldType)
+        : m_visitFieldType{ visitFieldType }
+    {
+    }
+
+    auto FieldVisitor::Traverse(AZStd::string_view path, AZStd::string_view valueName,
+        VisitAction action, Type type) -> VisitResponse
+    {
+        // A default response skip prevents visiting grand children(depth 2 or lower)
+        VisitResponse visitResponse = VisitResponse::Skip;
+        if (action == VisitAction::Begin)
+        {
+            // Invoke FieldVisitor override if the root path has been set
+            if (m_rootPath.has_value())
+            {
+                Visit(path, valueName, type);
+            }
+            // To make sure only the direct children are visited(depth 1)
+            // set the root path once and set the VisitReponsoe
+            // to Continue to recurse into is fields
+            if (!m_rootPath.has_value())
+            {
+                bool visitableFieldType{};
+                switch (m_visitFieldType)
+                {
+                case VisitFieldType::Array:
+                    visitableFieldType = type == Type::Array;
+                    break;
+                case VisitFieldType::Object:
+                    visitableFieldType = type == Type::Object;
+                    break;
+                case VisitFieldType::ArrayOrObject:
+                    visitableFieldType = type == Type::Array || type ==Type::Object;
+                    break;
+                default:
+                    AZ_Error("FieldVisitor", false, "The field visitation type value is invalid");
+                    break;
+                }
+
+                if (visitableFieldType)
+                {
+                    m_rootPath = path;
+                    visitResponse = VisitResponse::Continue;
+                }
+            }
+        }
+        else if (action == VisitAction::Value)
+        {
+            // Invoke FieldVisitor override if the root path has been set
+            if (m_rootPath.has_value())
+            {
+                Visit(path, valueName, type);
+            }
+        }
+        else if (action == VisitAction::End)
+        {
+            // Reset m_rootPath back to null when the root path has finished being visited
+            if (m_rootPath.has_value() && *m_rootPath == path)
+            {
+                m_rootPath = AZStd::nullopt;
+            }
+        }
+
+
+        return visitResponse;
+    }
+
+    // Array Visitor implementation
+    ArrayVisitor::ArrayVisitor()
+        : FieldVisitor(VisitFieldType::Array)
+    {
+    }
+
+    // Object Visitor implementation
+    ObjectVisitor::ObjectVisitor()
+        : FieldVisitor(VisitFieldType::Object)
+    {
+    }
+
+    // Generic VisitField Callback implemention
+    template <typename BaseVisitor>
+    bool VisitFieldCallback(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path)
+    {
+        struct VisitFieldVisitor
+            : BaseVisitor
+        {
+            using BaseVisitor::Visit;
+            VisitFieldVisitor(const VisitorCallback& visitCallback)
+                : m_visitCallback{ visitCallback }
+            {}
+
+            void Visit(AZStd::string_view path, AZStd::string_view fieldIndex, typename BaseVisitor::Type type) override
+            {
+                m_visitCallback(path, fieldIndex, type);
+            }
+
+            const VisitorCallback& m_visitCallback;
+        };
+
+        VisitFieldVisitor visitor{ visitCallback };
+        return settingsRegistry.Visit(visitor, path);
+    }
+
+    // VisitField implementation
+    bool VisitField(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path)
+    {
+        return VisitFieldCallback<FieldVisitor>(settingsRegistry, visitCallback, path);
+    }
+
+    // VisitArray implementation
+    bool VisitArray(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path)
+    {
+        return VisitFieldCallback<ArrayVisitor>(settingsRegistry, visitCallback, path);
+    }
+
+    // VisitObject implementation
+    bool VisitObject(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path)
+    {
+        return VisitFieldCallback<ObjectVisitor>(settingsRegistry, visitCallback, path);
+    }
+}

Code/Framework/AzCore/AzCore/Settings/SettingsRegistryVisitorUtils.h

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/Settings/SettingsRegistry.h>
+
+
+namespace AZ::SettingsRegistryVisitorUtils
+{
+    //! Interface for visiting the fields of an array or object
+    //! To access the values, use the SettingsRegistryInterface Get/GetObject methods
+    struct FieldVisitor
+        : public AZ::SettingsRegistryInterface::Visitor
+    {
+        using VisitResponse = AZ::SettingsRegistryInterface::VisitResponse;
+        using VisitAction = AZ::SettingsRegistryInterface::VisitAction;
+        using Type = AZ::SettingsRegistryInterface::Type;
+
+        FieldVisitor();
+
+        // Bring the base class visitor functions into scope
+        using AZ::SettingsRegistryInterface::Visitor::Visit;
+        virtual void Visit(AZStd::string_view path, AZStd::string_view arrayIndex, Type type) = 0;
+
+    protected:
+        // VisitFieldType is used for filtering the type of referenced by the root path
+        enum class VisitFieldType
+        {
+            Array,
+            Object,
+            ArrayOrObject
+        };
+        FieldVisitor(const VisitFieldType visitFieldType);
+    private:
+        VisitResponse Traverse(AZStd::string_view path, AZStd::string_view valueName,
+            VisitAction action, Type type) override;
+
+        VisitFieldType m_visitFieldType{ VisitFieldType::ArrayOrObject };
+        AZStd::optional<AZ::SettingsRegistryInterface::FixedValueString> m_rootPath;
+    };
+
+    //! Interface for visiting the fields of an array
+    //! To access the values, use the SettingsRegistryInterface Get/GetObject methods
+    struct ArrayVisitor
+        : public FieldVisitor
+    {
+        ArrayVisitor();
+    };
+
+    //! Interface for visiting the fields of an object
+    //! To access the values, use the SettingsRegistryInterface Get/GetObject methods
+    struct ObjectVisitor
+        : public FieldVisitor
+    {
+        ObjectVisitor();
+    };
+
+    //! Signature of callback funcition invoked when visiting an element of an array or object
+    using VisitorCallback = AZStd::function<void(AZStd::string_view path, AZStd::string_view fieldName,
+        AZ::SettingsRegistryInterface::Type)>;
+
+    //! Invokes the visitor callback for each element of either the array or object at @path
+    //! If @path is not an array or object, then no elements are visited
+    //! This function will not recurse into children of elements
+    //! @visitCallback functor that is invoked for each array or object element found
+    bool VisitField(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path);
+    //! Invokes the visitor callback for each element of the array at @path
+    //! If @path is not an array, then no elements are visited
+    //! This function will not recurse into children of elements
+    //! @visitCallback functor that is invoked for each array element found
+    bool VisitArray(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path);
+    //! Invokes the visitor callback for each element of the object at @path
+    //! If @path is not an object, then no elements are visited
+    //! This function will not recurse into children of elements
+    //! @visitCallback functor that is invoked for each object element found
+    bool VisitObject(AZ::SettingsRegistryInterface& settingsRegistry, const VisitorCallback& visitCallback, AZStd::string_view path);
+}

Code/Framework/AzCore/AzCore/Task/TaskExecutor.cpp

@@ -308,11 +308,11 @@ namespace AZ
 
     void TaskExecutor::SetInstance(TaskExecutor* executor)
     {
-        if (!executor)
+        if (!executor) // allow unsetting the executor
         {
             s_executor.Reset();
         }
-        else if (!s_executor) // ignore any calls to set after the first (this happens in unit tests that create new system entities)
+        else if (!s_executor) // ignore any extra executors after the first (this happens during unit tests)
         {
             s_executor = AZ::Environment::CreateVariable<TaskExecutor*>(s_executorName, executor);
         }

Code/Framework/AzCore/AzCore/Task/TaskGraphSystemComponent.cpp

@@ -11,9 +11,15 @@
 #include <AzCore/Task/TaskGraphSystemComponent.h>
 #include <AzCore/Serialization/SerializeContext.h>
 #include <AzCore/Serialization/EditContext.h>
+#include <AzCore/Math/MathUtils.h>
+#include <AzCore/Threading/ThreadUtils.h>
 
 // Create a cvar as a central location for experimentation with switching from the Job system to TaskGraph system.
 AZ_CVAR(bool, cl_activateTaskGraph, false, nullptr, AZ::ConsoleFunctorFlags::Null, "Flag clients of TaskGraph to switch between jobs/taskgraph (Note does not disable task graph system)");
+AZ_CVAR(float, cl_taskGraphThreadsConcurrencyRatio, 1.0f, nullptr, AZ::ConsoleFunctorFlags::Null, "TaskGraph calculate the number of worker threads to spawn by scaling the number of hw threads, value is clamped between 0.0f and 1.0f");
+AZ_CVAR(uint32_t, cl_taskGraphThreadsNumReserved, 2, nullptr, AZ::ConsoleFunctorFlags::Null, "TaskGraph number of hardware threads that are reserved for O3DE system threads. Value is clamped between 0 and the number of logical cores in the system");
+AZ_CVAR(uint32_t, cl_taskGraphThreadsMinNumber, 2, nullptr, AZ::ConsoleFunctorFlags::Null, "TaskGraph minimum number of worker threads to create after scaling the number of hw threads");
+
 static constexpr uint32_t TaskExecutorServiceCrc = AZ_CRC_CE("TaskExecutorService");
 
 namespace AZ
@@ -24,8 +30,8 @@ namespace AZ
 
         if (Interface<TaskGraphActiveInterface>::Get() == nullptr)
         {
-            Interface<TaskGraphActiveInterface>::Register(this);
-            m_taskExecutor = aznew TaskExecutor();
+            Interface<TaskGraphActiveInterface>::Register(this); // small window that another thread can try to use taskgraph between this line and the set instance.
+            m_taskExecutor = aznew TaskExecutor(Threading::CalcNumWorkerThreads(cl_taskGraphThreadsConcurrencyRatio, cl_taskGraphThreadsMinNumber, cl_taskGraphThreadsNumReserved));
             TaskExecutor::SetInstance(m_taskExecutor);
         }
     }

Code/Framework/AzCore/AzCore/Threading/ThreadUtils.cpp

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzCore/Threading/ThreadUtils.h>
+#include <AzCore/std/parallel/thread.h>
+#include <AzCore/Math/MathUtils.h>
+
+namespace AZ::Threading
+{
+    uint32_t CalcNumWorkerThreads(float workerThreadsRatio, uint32_t minNumWorkerThreads, uint32_t reservedNumThreads)
+    {
+        const uint32_t maxHardwareThreads = AZStd::thread::hardware_concurrency();
+        const uint32_t numReservedThreads = AZ::GetMin<uint32_t>(reservedNumThreads, maxHardwareThreads); // protect against num reserved being bigger than the number of hw threads
+        const uint32_t maxWorkerThreads = maxHardwareThreads - numReservedThreads;
+        const float requestedWorkerThreads = AZ::GetClamp<float>(workerThreadsRatio, 0.0f, 1.0f) * static_cast<float>(maxWorkerThreads);
+        const uint32_t requestedWorkerThreadsRounded = AZStd::lround(requestedWorkerThreads);
+        const uint32_t numWorkerThreads = AZ::GetMax<uint32_t>(minNumWorkerThreads, requestedWorkerThreadsRounded);
+        return numWorkerThreads;
+    }
+};

Code/Framework/AzCore/AzCore/Threading/ThreadUtils.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/base.h>
+
+namespace AZ::Threading
+{
+    //! Calculates the number of worker threads a system should use based on the number of hardware threads a device has. 
+    //!         result = max (minNumWorkerThreads, workerThreadsRatio * (num_hardware_threads - reservedNumThreads))
+    //! @param workerThreadsRatio scale applied to the calculated maximum number of threads available after reserved threads have been accounted for. Clamped between 0 and 1.
+    //! @param minNumWorkerThreads minimum value that will be returned. Value is unclamped and can be more than num_hardware_threads.
+    //! @param reservedNumThreads number of hardware threads to reserve for O3DE system threads. Value clamped to num_hardware_threads.
+    //! @return number of worker threads for the calling system to allocate
+    uint32_t CalcNumWorkerThreads(float workerThreadsRatio, uint32_t minNumWorkerThreads, uint32_t reservedNumThreads);
+};

Code/Framework/AzCore/AzCore/azcore_files.cmake

@@ -566,6 +566,8 @@ set(FILES
     Settings/SettingsRegistryMergeUtils.h
     Settings/SettingsRegistryScriptUtils.cpp
     Settings/SettingsRegistryScriptUtils.h
+    Settings/SettingsRegistryVisitorUtils.cpp
+    Settings/SettingsRegistryVisitorUtils.h
     State/HSM.cpp
     State/HSM.h
     Statistics/NamedRunningStatistic.h
@@ -639,6 +641,8 @@ set(FILES
     Threading/ThreadSafeDeque.inl
     Threading/ThreadSafeObject.h
     Threading/ThreadSafeObject.inl
+    Threading/ThreadUtils.h
+    Threading/ThreadUtils.cpp
     Time/ITime.h
     Time/TimeSystemComponent.cpp
     Time/TimeSystemComponent.h

Code/Framework/AzCore/Platform/Common/UnixLike/AzCore/std/parallel/internal/thread_UnixLike.cpp

@@ -59,6 +59,10 @@ namespace AZStd
                 {
                     priority = desc->m_priority;
                 }
+                else
+                {
+                    priority = SCHED_OTHER;
+                }
                 if (desc->m_name)
                 {
                     name = desc->m_name;

Code/Framework/AzCore/Tests/EBus.cpp

@@ -2088,7 +2088,7 @@ namespace UnitTest
         DisconnectNextHandlerByIdImpl multiHandler2;
         multiHandler2.BusConnect(DisconnectNextHandlerByIdImpl::firstBusAddress);
         multiHandler2.BusConnect(DisconnectNextHandlerByIdImpl::secondBusAddress);
-        
+
         // Set the first handler m_nextHandler field to point to the second handler
         multiHandler1.m_nextHandler = &multiHandler2;
 
@@ -2807,7 +2807,7 @@ namespace UnitTest
                     AZStd::this_thread::sleep_for(AZStd::chrono::milliseconds(m_val % m_maxSleep));
                 }
             }
-            
+
             void DoConnect() override
             {
                 MyEventGroupBus::Handler::BusConnect(m_id);
@@ -2854,7 +2854,7 @@ namespace UnitTest
                 }
 
                 MyEventGroupBus::Event(id, &MyEventGroupBus::Events::Calculate, i, i * 2, i << 4);
-                
+
                 LocklessConnectorBus::Event(id, &LocklessConnectorBus::Events::DoDisconnect);
 
                 bool failed = (AZStd::find_if(&sentinel[0], end, [](char s) { return s != 0; }) != end);
@@ -2891,7 +2891,7 @@ namespace UnitTest
         {
             MyEventGroupImpl()
             {
-                
+
             }
 
             ~MyEventGroupImpl() override
@@ -3614,7 +3614,7 @@ namespace UnitTest
             {
                 AZStd::this_thread::yield();
             }
-                
+
             EXPECT_GE(AZStd::chrono::system_clock::now(), endTime);
         };
         AZStd::thread connectThread([&connectHandler, &waitHandler]()
@@ -3813,7 +3813,7 @@ namespace UnitTest
     struct LastHandlerDisconnectHandler
         : public LastHandlerDisconnectBus::Handler
     {
-        void OnEvent() override 
+        void OnEvent() override
         {
             ++m_numOnEvents;
             BusDisconnect();
@@ -3854,7 +3854,7 @@ namespace UnitTest
     struct DisconnectAssertHandler
         : public DisconnectAssertBus::Handler
     {
-        
+
     };
 
     TEST_F(EBus, HandlerDestroyedWithoutDisconnect_Asserts)
@@ -3995,6 +3995,191 @@ namespace UnitTest
 
         idTestRequest.Disconnect();
     }
+
+    // IsInDispatchThisThread
+    struct IsInThreadDispatchRequests
+        : AZ::EBusTraits
+    {
+        using MutexType = AZStd::recursive_mutex;
+    };
+
+    using IsInThreadDispatchBus = AZ::EBus<IsInThreadDispatchRequests>;
+
+    class IsInThreadDispatchHandler
+        : public IsInThreadDispatchBus::Handler
+    {};
+
+    TEST_F(EBus, InvokingIsInThisThread_ReturnsSuccess_OnlyIfThreadIsInDispatch)
+    {
+        IsInThreadDispatchHandler handler;
+        handler.BusConnect();
+
+        auto ThreadDispatcher = [](IsInThreadDispatchRequests*)
+        {
+            EXPECT_TRUE(IsInThreadDispatchBus::IsInDispatchThisThread());
+            auto PerThreadBusDispatch = []()
+            {
+                EXPECT_FALSE(IsInThreadDispatchBus::IsInDispatchThisThread());
+            };
+            AZStd::array threads{ AZStd::thread(PerThreadBusDispatch), AZStd::thread(PerThreadBusDispatch) };
+            for (AZStd::thread& thread : threads)
+            {
+                thread.join();
+            }
+        };
+
+        static constexpr size_t ThreadDispatcherIterations = 4;
+        for (size_t iteration = 0; iteration < ThreadDispatcherIterations; ++iteration)
+        {
+            EXPECT_FALSE(IsInThreadDispatchBus::IsInDispatchThisThread());
+            IsInThreadDispatchBus::Broadcast(ThreadDispatcher);
+            EXPECT_FALSE(IsInThreadDispatchBus::IsInDispatchThisThread());
+        }
+    }
+
+    // Thread Dispatch Policy
+    struct ThreadDispatchTestBusTraits
+        : AZ::EBusTraits
+    {
+        using MutexType = AZStd::recursive_mutex;
+
+        struct PostThreadDispatchTestInvoker
+        {
+            ~PostThreadDispatchTestInvoker();
+        };
+
+        template <typename DispatchMutex>
+        struct ThreadDispatchTestLockGuard
+        {
+            ThreadDispatchTestLockGuard(DispatchMutex& contextMutex)
+                : m_lock{ contextMutex }
+            {}
+            ThreadDispatchTestLockGuard(DispatchMutex& contextMutex, AZStd::adopt_lock_t adopt_lock)
+                : m_lock{ contextMutex, adopt_lock }
+            {}
+            ThreadDispatchTestLockGuard(const ThreadDispatchTestLockGuard&) = delete;
+            ThreadDispatchTestLockGuard& operator=(const ThreadDispatchTestLockGuard&) = delete;
+        private:
+            PostThreadDispatchTestInvoker m_threadPolicyInvoker;
+            using LockType = AZStd::conditional_t<LocklessDispatch, AZ::Internal::NullLockGuard<DispatchMutex>, AZStd::scoped_lock<DispatchMutex>>;
+            LockType m_lock;
+        };
+
+        template <typename DispatchMutex, bool IsLocklessDispatch>
+        using DispatchLockGuard = ThreadDispatchTestLockGuard<DispatchMutex>;
+
+        static inline AZStd::atomic<int32_t> s_threadPostDispatchCalls;
+    };
+
+    class ThreadDispatchTestRequests
+    {
+    public:
+        virtual void FirstCall() = 0;
+        virtual void SecondCall() = 0;
+        virtual void ThirdCall() = 0;
+    };
+
+    using ThreadDispatchTestBus = AZ::EBus<ThreadDispatchTestRequests, ThreadDispatchTestBusTraits>;
+
+    ThreadDispatchTestBusTraits::PostThreadDispatchTestInvoker::~PostThreadDispatchTestInvoker()
+    {
+        if (!ThreadDispatchTestBus::IsInDispatchThisThread())
+        {
+            ++s_threadPostDispatchCalls;
+        }
+    }
+
+    class ThreadDispatchTestHandler
+        : public ThreadDispatchTestBus::Handler
+    {
+    public:
+        void Connect()
+        {
+            ThreadDispatchTestBus::Handler::BusConnect();
+        }
+        void Disconnect()
+        {
+            ThreadDispatchTestBus::Handler::BusDisconnect();
+        }
+
+        void FirstCall() override
+        {
+            ThreadDispatchTestBus::Broadcast(&ThreadDispatchTestBus::Events::SecondCall);
+        }
+        void SecondCall() override
+        {
+            ThreadDispatchTestBus::Broadcast(&ThreadDispatchTestBus::Events::ThirdCall);
+        }
+        void ThirdCall() override
+        {
+        }
+    };
+
+    template <typename ParamType>
+    class EBusParamFixture
+        : public ScopedAllocatorSetupFixture
+        , public ::testing::WithParamInterface<ParamType>
+    {};
+
+    struct ThreadDispatchParams
+    {
+        size_t m_threadCount{};
+        size_t m_handlerCount{};
+    };
+
+    using ThreadDispatchParamFixture = EBusParamFixture<ThreadDispatchParams>;
+
+    INSTANTIATE_TEST_CASE_P(
+        ThreadDispatch,
+        ThreadDispatchParamFixture,
+        ::testing::Values(
+            ThreadDispatchParams{ 1, 1 },
+            ThreadDispatchParams{ 2, 1 },
+            ThreadDispatchParams{ 1, 2 },
+            ThreadDispatchParams{ 2, 2 },
+            ThreadDispatchParams{ 16, 8 }
+            )
+    );
+
+    TEST_P(ThreadDispatchParamFixture, CustomDispatchLockGuard_InvokesPostDispatchFunction_AfterThreadHasFinishedDispatch)
+    {
+        ThreadDispatchTestBusTraits::s_threadPostDispatchCalls = 0;
+        ThreadDispatchParams threadDispatchParams = GetParam();
+        AZStd::vector<AZStd::thread> testThreads;
+        AZStd::vector<ThreadDispatchTestHandler> testHandlers(threadDispatchParams.m_handlerCount);
+        for (ThreadDispatchTestHandler& testHandler : testHandlers)
+        {
+            testHandler.Connect();
+        }
+
+        static constexpr size_t DispatchThreadCalls = 3;
+        const size_t totalThreadDispatchCalls = threadDispatchParams.m_threadCount * DispatchThreadCalls;
+
+        auto DispatchThreadWorker = []()
+        {
+            ThreadDispatchTestBus::Broadcast(&ThreadDispatchTestBus::Events::FirstCall);
+            ThreadDispatchTestBus::Broadcast(&ThreadDispatchTestBus::Events::SecondCall);
+            ThreadDispatchTestBus::Broadcast(&ThreadDispatchTestBus::Events::ThirdCall);
+        };
+
+        for (size_t threadIndex = 0; threadIndex < threadDispatchParams.m_threadCount; ++threadIndex)
+        {
+            testThreads.emplace_back(DispatchThreadWorker);
+        }
+
+        for (AZStd::thread& thread : testThreads)
+        {
+            thread.join();
+        }
+
+        for (ThreadDispatchTestHandler& testHandler : testHandlers)
+        {
+            testHandler.Disconnect();
+        }
+
+        EXPECT_EQ(totalThreadDispatchCalls, ThreadDispatchTestBusTraits::s_threadPostDispatchCalls);
+        ThreadDispatchTestBusTraits::s_threadPostDispatchCalls = 0;
+    }
 } // namespace UnitTest
 
 #if defined(HAVE_BENCHMARK)
@@ -4370,7 +4555,7 @@ namespace Benchmark
             Bus::ExecuteQueuedEvents();
         }
         s_benchmarkEBusEnv<Bus>.Disconnect(state);
-        
+
     }
     BUS_BENCHMARK_REGISTER_ALL(BM_EBus_ExecuteBroadcast);
 

Code/Framework/AzCore/Tests/Settings/SettingsRegistryVisitorUtilsTests.cpp

@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+
+#include <AzCore/Settings/SettingsRegistryImpl.h>
+#include <AzCore/Settings/SettingsRegistryVisitorUtils.h>
+#include <AzCore/std/containers/fixed_vector.h>
+#include <AzCore/std/smart_ptr/unique_ptr.h>
+#include <AzCore/std/string/string.h>
+#include <AzCore/UnitTest/TestTypes.h>
+
+namespace SettingsRegistryVisitorUtilsTests
+{
+    struct VisitCallbackParams
+    {
+        AZStd::string_view m_inputJsonDocument;
+        using VisitFieldFunction = bool(*)(AZ::SettingsRegistryInterface&,
+            const AZ::SettingsRegistryVisitorUtils::VisitorCallback&,
+            AZStd::string_view);
+
+        static inline constexpr size_t MaxFieldCount = 10;
+        using ObjectFields = AZStd::fixed_vector<AZStd::pair<AZStd::string_view, AZStd::string_view>, MaxFieldCount>;
+        using ArrayFields = AZStd::fixed_vector<AZStd::string_view, MaxFieldCount>;
+        ObjectFields m_objectFields;
+        ArrayFields m_arrayFields;
+    };
+
+    template <typename VisitorParams>
+    class SettingsRegistryVisitorUtilsParamFixture
+        : public UnitTest::ScopedAllocatorSetupFixture
+        , public ::testing::WithParamInterface<VisitorParams>
+    {
+    public:
+
+        void SetUp() override
+        {
+            m_registry = AZStd::make_unique<AZ::SettingsRegistryImpl>();
+        }
+
+        void TearDown() override
+        {
+            m_registry.reset();
+        }
+
+        AZStd::unique_ptr<AZ::SettingsRegistryImpl> m_registry;
+    };
+
+    using SettingsRegistryVisitCallbackFixture = SettingsRegistryVisitorUtilsParamFixture<VisitCallbackParams>;
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitFieldsOfArrayType_ReturnsFields)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::string, VisitCallbackParams::MaxFieldCount> testArrayFields;
+        auto visitorCallback = [this, &testArrayFields](AZStd::string_view path, AZStd::string_view, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testArrayFields.emplace_back(AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitField(*m_registry, visitorCallback, "/Test/Array");
+
+        const AZStd::fixed_vector<AZStd::string, VisitCallbackParams::MaxFieldCount> expectedFields{
+            visitParams.m_arrayFields.begin(), visitParams.m_arrayFields.end() };
+        EXPECT_THAT(testArrayFields, ::testing::ContainerEq(expectedFields));
+    }
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitFieldsOfObjectType_ReturnsFields)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::pair<AZStd::string, AZStd::string>, VisitCallbackParams::MaxFieldCount> testObjectFields;
+        auto visitorCallback = [this, &testObjectFields](AZStd::string_view path, AZStd::string_view fieldName, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testObjectFields.emplace_back(fieldName, AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitField(*m_registry, visitorCallback, "/Test/Object");
+
+        const AZStd::fixed_vector<AZStd::pair<AZStd::string, AZStd::string>, VisitCallbackParams::MaxFieldCount> expectedFields{
+            visitParams.m_objectFields.begin(), visitParams.m_objectFields.end() };
+        EXPECT_THAT(testObjectFields, ::testing::ContainerEq(expectedFields));
+    }
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitArrayOfArrayType_ReturnsFields)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::string, VisitCallbackParams::MaxFieldCount> testArrayFields;
+        auto visitorCallback = [this, &testArrayFields](AZStd::string_view path, AZStd::string_view, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testArrayFields.emplace_back(AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitArray(*m_registry, visitorCallback, "/Test/Array");
+
+        const AZStd::fixed_vector<AZStd::string, VisitCallbackParams::MaxFieldCount> expectedArrayFields{
+            visitParams.m_arrayFields.begin(), visitParams.m_arrayFields.end() };
+        EXPECT_THAT(testArrayFields, ::testing::ContainerEq(expectedArrayFields));
+    }
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitArrayOfObjectType_ReturnsEmpty)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::string, VisitCallbackParams::MaxFieldCount> testArrayFields;
+        auto visitorCallback = [this, &testArrayFields](AZStd::string_view path, AZStd::string_view, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testArrayFields.emplace_back(AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitArray(*m_registry, visitorCallback, "/Test/Object");
+
+        EXPECT_TRUE(testArrayFields.empty());
+    }
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitObjectOfArrayType_ReturnsEmpty)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::pair<AZStd::string, AZStd::string>, VisitCallbackParams::MaxFieldCount> testObjectFields;
+        auto visitorCallback = [this, &testObjectFields](AZStd::string_view path, AZStd::string_view fieldName, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testObjectFields.emplace_back(fieldName, AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitObject(*m_registry, visitorCallback, "/Test/Array");
+
+        EXPECT_TRUE(testObjectFields.empty());
+    }
+
+    TEST_P(SettingsRegistryVisitCallbackFixture, VisitFunction_VisitObjectOfObjectType_ReturnsFields)
+    {
+        const VisitCallbackParams& visitParams = GetParam();
+
+        ASSERT_TRUE(m_registry->MergeSettings(visitParams.m_inputJsonDocument, AZ::SettingsRegistryInterface::Format::JsonMergePatch));
+
+        AZStd::fixed_vector<AZStd::pair<AZStd::string, AZStd::string>, VisitCallbackParams::MaxFieldCount> testObjectFields;
+        auto visitorCallback = [this, &testObjectFields](AZStd::string_view path, AZStd::string_view fieldName, AZ::SettingsRegistryInterface::Type)
+        {
+            AZStd::string fieldValue;
+            EXPECT_TRUE(m_registry->Get(fieldValue, path));
+            testObjectFields.emplace_back(fieldName, AZStd::move(fieldValue));
+        };
+
+        AZ::SettingsRegistryVisitorUtils::VisitObject(*m_registry, visitorCallback, "/Test/Object");
+
+        const AZStd::fixed_vector<AZStd::pair<AZStd::string, AZStd::string>, VisitCallbackParams::MaxFieldCount> expectedObjectFields{
+        visitParams.m_objectFields.begin(), visitParams.m_objectFields.end() };
+        EXPECT_THAT(testObjectFields, ::testing::ContainerEq(expectedObjectFields));
+    }
+
+
+    INSTANTIATE_TEST_CASE_P(
+        VisitField,
+        SettingsRegistryVisitCallbackFixture,
+        ::testing::Values(
+            VisitCallbackParams
+            {
+                R"({)" "\n"
+                R"(    "Test":)" "\n"
+                R"(    {)" "\n"
+                R"(        "Array": [ "Hello", "World" ],)" "\n"
+                R"(        "Object": { "Foo": "Hello", "Bar": "World"})" "\n"
+                R"(    })" "\n"
+                R"(})" "\n",
+                VisitCallbackParams::ObjectFields{{"Foo", "Hello"}, {"Bar", "World"}},
+                VisitCallbackParams::ArrayFields{"Hello", "World"}
+            }
+        )
+    );
+}

Code/Framework/AzCore/Tests/UUIDTests.cpp

@@ -247,4 +247,27 @@ namespace UnitTest
         Uuid right = Uuid::CreateStringPermissive(permissiveStr1);
         EXPECT_EQ(left, right);
     }
+
+    TEST_F(UuidTests, CreateStringPermissive_StringWithExtraData_Succeeds)
+    {
+        const char uuidStr[] = "{34D44249-E599-4B30-811F-4215C2DEA269}";
+        Uuid left = Uuid::CreateString(uuidStr);
+
+        const char permissiveStr[] = "0x34D44249-0xE5994B30-0x811F4215-0xC2DEA269 Hello World";
+        Uuid right = Uuid::CreateStringPermissive(permissiveStr);
+        EXPECT_EQ(left, right);
+
+    }
+
+    TEST_F(UuidTests, CreateStringPermissive_StringWithLotsOfExtraData_Succeeds)
+    {
+        const char uuidStr[] = "{34D44249-E599-4B30-811F-4215C2DEA269}";
+        Uuid left = Uuid::CreateString(uuidStr);
+
+        const char permissiveStr[] = "0x34D44249-0xE5994B30-0x811F4215-0xC2DEA269 Hello World this is a really long string "
+        "with lots of extra data to make sure we can parse a long string without failing as long as the uuid is in "
+        "the beginning of the string then we should succeed";
+        Uuid right = Uuid::CreateStringPermissive(permissiveStr);
+        EXPECT_EQ(left, right);
+    }
 }

Code/Framework/AzCore/Tests/azcoretests_files.cmake

@@ -75,11 +75,12 @@ set(FILES
     Name/NameJsonSerializerTests.cpp
     Name/NameTests.cpp
     RTTI/TypeSafeIntegralTests.cpp
-    SettingsRegistryTests.cpp
-    SettingsRegistryMergeUtilsTests.cpp
     Settings/CommandLineTests.cpp
+    Settings/SettingsRegistryTests.cpp
     Settings/SettingsRegistryConsoleUtilsTests.cpp
+    Settings/SettingsRegistryMergeUtilsTests.cpp
     Settings/SettingsRegistryScriptUtilsTests.cpp
+    Settings/SettingsRegistryVisitorUtilsTests.cpp
     Streamer/BlockCacheTests.cpp
     Streamer/DedicatedCacheTests.cpp
     Streamer/FullDecompressorTests.cpp

Code/Framework/AzFramework/AzFramework/Entity/BehaviorEntity.cpp

@@ -133,6 +133,8 @@ namespace AzFramework
             behaviorContext->Class<BehaviorEntity>("Entity")
                 ->Attribute(AZ::Script::Attributes::Storage, AZ::Script::Attributes::StorageType::Value)
                 ->Attribute(AZ::Script::Attributes::ConstructorOverride, &Internal::BehaviorEntityScriptConstructor)
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Module, "entity")
                 ->Constructor()
                 ->Constructor<AZ::EntityId>()
                 ->Constructor<AZ::Entity*>()

Code/Framework/AzFramework/AzFramework/Matchmaking/IMatchmakingRequests.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/RTTI/ReflectContext.h>
+#include <AzCore/std/string/string.h>
+#include <AzFramework/Matchmaking/MatchmakingRequests.h>
+
+namespace AzFramework
+{
+    //! IMatchmakingRequests
+    //! Pure virtual session interface class to abstract the details of session handling from application code.
+    class IMatchmakingRequests
+    {
+    public:
+        AZ_RTTI(IMatchmakingRequests, "{BC0B74DA-A448-4F40-9B50-9D73142829D5}");
+
+        IMatchmakingRequests() = default;
+        virtual ~IMatchmakingRequests() = default;
+
+        // Registers a player's acceptance or rejection of a proposed matchmaking.
+        // @param  acceptMatchRequest The request of AcceptMatch operation
+        virtual void AcceptMatch(const AcceptMatchRequest& acceptMatchRequest) = 0;
+
+        // Create a game match for a group of players.
+        // @param  startMatchmakingRequest The request of StartMatchmaking operation
+        // @return A unique identifier for a matchmaking ticket
+        virtual AZStd::string StartMatchmaking(const StartMatchmakingRequest& startMatchmakingRequest) = 0;
+
+        // Cancels a matchmaking ticket that is currently being processed.
+        // @param  stopMatchmakingRequest The request of StopMatchmaking operation
+        virtual void StopMatchmaking(const StopMatchmakingRequest& stopMatchmakingRequest) = 0;
+    };
+
+    //! IMatchmakingAsyncRequests
+    //! Async version of IMatchmakingRequests
+    class IMatchmakingAsyncRequests
+    {
+    public:
+        AZ_RTTI(ISessionAsyncRequests, "{53513480-2D02-493C-B44E-96AA27F42429}");
+
+        IMatchmakingAsyncRequests() = default;
+        virtual ~IMatchmakingAsyncRequests() = default;
+
+        // AcceptMatch Async
+        // @param  acceptMatchRequest The request of AcceptMatch operation
+        virtual void AcceptMatchAsync(const AcceptMatchRequest& acceptMatchRequest) = 0;
+
+        // StartMatchmaking Async
+        // @param  startMatchmakingRequest The request of StartMatchmaking operation
+        virtual void StartMatchmakingAsync(const StartMatchmakingRequest& startMatchmakingRequest) = 0;
+
+        // StopMatchmaking Async
+        // @param  stopMatchmakingRequest The request of StopMatchmaking operation
+        virtual void StopMatchmakingAsync(const StopMatchmakingRequest& stopMatchmakingRequest) = 0;
+    };
+} // namespace AzFramework

Code/Framework/AzFramework/AzFramework/Matchmaking/MatchmakingNotifications.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/EBus/EBus.h>
+#include <AzCore/std/string/string.h>
+
+namespace AzFramework
+{
+    //! MatchmakingAsyncRequestNotifications
+    //! The notifications correspond to matchmaking async requests
+    class MatchmakingAsyncRequestNotifications
+        : public AZ::EBusTraits
+    {
+    public:
+        // Safeguard handler for multi-threaded use case
+        using MutexType = AZStd::recursive_mutex;
+
+        //////////////////////////////////////////////////////////////////////////
+        // EBusTraits overrides
+        static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Multiple;
+        static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+        //////////////////////////////////////////////////////////////////////////
+
+        // OnAcceptMatchAsyncComplete is fired once AcceptMatchAsync completes
+        virtual void OnAcceptMatchAsyncComplete() = 0;
+
+        // OnStartMatchmakingAsyncComplete is fired once StartMatchmakingAsync completes
+        // @param matchmakingTicketId The unique identifier for the matchmaking ticket
+        virtual void OnStartMatchmakingAsyncComplete(const AZStd::string& matchmakingTicketId) = 0;
+
+        // OnStopMatchmakingAsyncComplete is fired once StopMatchmakingAsync completes
+        virtual void OnStopMatchmakingAsyncComplete() = 0;
+    };
+    using MatchmakingAsyncRequestNotificationBus = AZ::EBus<MatchmakingAsyncRequestNotifications>;
+
+    //! MatchmakingNotifications
+    //! The matchmaking notifications to listen for performing required operations
+    class MatchAcceptanceNotifications
+        : public AZ::EBusTraits
+    {
+    public:
+        // Safeguard handler for multi-threaded use case
+        using MutexType = AZStd::recursive_mutex;
+
+        //////////////////////////////////////////////////////////////////////////
+        // EBusTraits overrides
+        static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Multiple;
+        static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+        //////////////////////////////////////////////////////////////////////////
+
+        // OnMatchAcceptance is fired when DescribeMatchmaking ticket status is REQUIRES_ACCEPTANCE
+        virtual void OnMatchAcceptance() = 0;
+    };
+    using MatchAcceptanceNotificationBus = AZ::EBus<MatchAcceptanceNotifications>;
+} // namespace AzFramework

Code/Framework/AzFramework/AzFramework/Matchmaking/MatchmakingRequests.cpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzCore/RTTI/ReflectContext.h>
+#include <AzCore/Serialization/EditContext.h>
+#include <AzCore/Serialization/SerializeContext.h>
+#include <AzFramework/Matchmaking/MatchmakingRequests.h>
+
+namespace AzFramework
+{
+    void AcceptMatchRequest::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+        {
+            serializeContext->Class<AcceptMatchRequest>()
+                ->Version(0)
+                ->Field("acceptMatch", &AcceptMatchRequest::m_acceptMatch)
+                ->Field("playerIds", &AcceptMatchRequest::m_playerIds)
+                ->Field("ticketId", &AcceptMatchRequest::m_ticketId);
+
+            if (AZ::EditContext* editContext = serializeContext->GetEditContext())
+            {
+                editContext->Class<AcceptMatchRequest>("AcceptMatchRequest", "The container for AcceptMatch request parameters")
+                    ->ClassElement(AZ::Edit::ClassElements::EditorData, "")
+                    ->Attribute(AZ::Edit::Attributes::Visibility, AZ::Edit::PropertyVisibility::ShowChildrenOnly)
+                    ->DataElement(AZ::Edit::UIHandlers::Default, &AcceptMatchRequest::m_acceptMatch, "AcceptMatch",
+                        "Player response to accept or reject match")
+                    ->DataElement(AZ::Edit::UIHandlers::Default, &AcceptMatchRequest::m_playerIds, "PlayerIds",
+                        "A list of unique identifiers for players delivering the response")
+                    ->DataElement(AZ::Edit::UIHandlers::Default, &AcceptMatchRequest::m_ticketId, "TicketId",
+                        "A unique identifier for a matchmaking ticket");
+            }
+        }
+    }
+
+    void StartMatchmakingRequest::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+        {
+            serializeContext->Class<StartMatchmakingRequest>()
+                ->Version(0)
+                ->Field("ticketId", &StartMatchmakingRequest::m_ticketId);
+
+            if (AZ::EditContext* editContext = serializeContext->GetEditContext())
+            {
+                editContext->Class<StartMatchmakingRequest>("StartMatchmakingRequest", "The container for StartMatchmaking request parameters")
+                    ->ClassElement(AZ::Edit::ClassElements::EditorData, "")
+                    ->Attribute(AZ::Edit::Attributes::Visibility, AZ::Edit::PropertyVisibility::ShowChildrenOnly)
+                    ->DataElement(AZ::Edit::UIHandlers::Default, &StartMatchmakingRequest::m_ticketId, "TicketId",
+                        "A unique identifier for a matchmaking ticket");
+            }
+        }
+    }
+
+    void StopMatchmakingRequest::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+        {
+            serializeContext->Class<StopMatchmakingRequest>()
+                ->Version(0)
+                ->Field("ticketId", &StopMatchmakingRequest::m_ticketId);
+
+            if (AZ::EditContext* editContext = serializeContext->GetEditContext())
+            {
+                editContext->Class<StopMatchmakingRequest>("StopMatchmakingRequest", "The container for StopMatchmaking request parameters")
+                    ->ClassElement(AZ::Edit::ClassElements::EditorData, "")
+                    ->Attribute(AZ::Edit::Attributes::Visibility, AZ::Edit::PropertyVisibility::ShowChildrenOnly)
+                    ->DataElement(AZ::Edit::UIHandlers::Default, &StopMatchmakingRequest::m_ticketId, "TicketId",
+                        "A unique identifier for a matchmaking ticket");
+            }
+        }
+    }
+} // namespace AzFramework

Code/Framework/AzFramework/AzFramework/Matchmaking/MatchmakingRequests.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/RTTI/RTTI.h>
+#include <AzCore/std/string/string.h>
+
+namespace AZ
+{
+    class ReflectContext;
+}
+
+namespace AzFramework
+{
+    //! AcceptMatchRequest
+    //! The container for AcceptMatch request parameters.
+    struct AcceptMatchRequest
+    {
+        AZ_RTTI(AcceptMatchRequest, "{AD289D76-CEE2-424F-847E-E62AA83B7D79}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        AcceptMatchRequest() = default;
+        virtual ~AcceptMatchRequest() = default;
+
+        // Player response to accept or reject match
+        bool m_acceptMatch;
+        // A list of unique identifiers for players delivering the response
+        AZStd::vector<AZStd::string> m_playerIds;
+        // A unique identifier for a matchmaking ticket
+        AZStd::string m_ticketId;
+    };
+
+    //! StartMatchmakingRequest
+    //! The container for StartMatchmaking request parameters.
+    struct StartMatchmakingRequest
+    {
+        AZ_RTTI(StartMatchmakingRequest, "{70B47776-E8E7-4993-BEC3-5CAEC3D48E47}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        StartMatchmakingRequest() = default;
+        virtual ~StartMatchmakingRequest() = default;
+
+        // A unique identifier for a matchmaking ticket
+        AZStd::string m_ticketId;
+    };
+
+    //! StopMatchmakingRequest
+    //! The container for StopMatchmaking request parameters.
+    struct StopMatchmakingRequest
+    {
+        AZ_RTTI(StopMatchmakingRequest, "{6132E293-65EF-4DC2-A8A0-00269697229D}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        StopMatchmakingRequest() = default;
+        virtual ~StopMatchmakingRequest() = default;
+
+        // A unique identifier for a matchmaking ticket
+        AZStd::string m_ticketId;
+    };
+} // namespace AzFramework

Code/Framework/AzFramework/AzFramework/Session/ISessionRequests.h

@@ -10,98 +10,11 @@
 
 #include <AzCore/EBus/EBus.h>
 #include <AzCore/RTTI/ReflectContext.h>
-#include <AzCore/std/containers/unordered_map.h>
 #include <AzCore/std/string/string.h>
-#include <AzCore/Outcome/Outcome.h>
+#include <AzFramework/Session/SessionRequests.h>
 
 namespace AzFramework
 {
-    struct SessionConfig;
-
-    //! CreateSessionRequest
-    //! The container for CreateSession request parameters.
-    struct CreateSessionRequest
-    {
-        AZ_RTTI(CreateSessionRequest, "{E39C2A45-89C9-4CFB-B337-9734DC798930}");
-        static void Reflect(AZ::ReflectContext* context);
-
-        CreateSessionRequest() = default;
-        virtual ~CreateSessionRequest() = default;
-
-        // A unique identifier for a player or entity creating the session.
-        AZStd::string m_creatorId;
-
-        // A collection of custom properties for a session.
-        AZStd::unordered_map<AZStd::string, AZStd::string> m_sessionProperties;
-
-        // A descriptive label that is associated with a session.
-        AZStd::string m_sessionName;
-
-        // The maximum number of players that can be connected simultaneously to the session.
-        uint64_t m_maxPlayer = 0;
-    };
-
-    //! SearchSessionsRequest
-    //! The container for SearchSessions request parameters.
-    struct SearchSessionsRequest
-    {
-        AZ_RTTI(SearchSessionsRequest, "{B49207A8-8549-4ADB-B7D9-D7A4932F9B4B}");
-        static void Reflect(AZ::ReflectContext* context);
-
-        SearchSessionsRequest() = default;
-        virtual ~SearchSessionsRequest() = default;
-
-        // String containing the search criteria for the session search. If no filter expression is included, the request returns results
-        // for all active sessions.
-        AZStd::string m_filterExpression;
-
-        // Instructions on how to sort the search results. If no sort expression is included, the request returns results in random order.
-        AZStd::string m_sortExpression;
-
-        // The maximum number of results to return.
-        uint8_t m_maxResult = 0;
-
-        // A token that indicates the start of the next sequential page of results.
-        AZStd::string m_nextToken;
-    };
-
-    //! SearchSessionsResponse
-    //! The container for SearchSession request results.
-    struct SearchSessionsResponse
-    {
-        AZ_RTTI(SearchSessionsResponse, "{F93DE7DC-D381-4E08-8A3B-0B08F7C38714}");
-        static void Reflect(AZ::ReflectContext* context);
-
-        SearchSessionsResponse() = default;
-        virtual ~SearchSessionsResponse() = default;
-
-        // A collection of sessions that match the search criteria and sorted in specific order.
-        AZStd::vector<SessionConfig> m_sessionConfigs;
-
-        // A token that indicates the start of the next sequential page of results.
-        AZStd::string m_nextToken;
-    };
-
-    //! JoinSessionRequest
-    //! The container for JoinSession request parameters.
-    struct JoinSessionRequest
-    {
-        AZ_RTTI(JoinSessionRequest, "{519769E8-3CDE-4385-A0D7-24DBB3685657}");
-        static void Reflect(AZ::ReflectContext* context);
-
-        JoinSessionRequest() = default;
-        virtual ~JoinSessionRequest() = default;
-
-        // A unique identifier for the session.
-        AZStd::string m_sessionId;
-
-        // A unique identifier for a player. Player IDs are developer-defined.
-        AZStd::string m_playerId;
-
-        // Developer-defined information related to a player.
-        AZStd::string m_playerData;
-    };
-
     //! ISessionRequests
     //! Pure virtual session interface class to abstract the details of session handling from application code.
     class ISessionRequests

Code/Framework/AzFramework/AzFramework/Session/SessionRequests.cpp

@@ -6,9 +6,10 @@
  *
  */
 
+#include <AzCore/RTTI/ReflectContext.h>
 #include <AzCore/Serialization/EditContext.h>
 #include <AzCore/Serialization/SerializeContext.h>
-#include <AzFramework/Session/ISessionRequests.h>
+#include <AzFramework/Session/SessionRequests.h>
 #include <AzFramework/Session/SessionConfig.h>
 
 namespace AzFramework

Code/Framework/AzFramework/AzFramework/Session/SessionRequests.h

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/RTTI/RTTI.h>
+#include <AzCore/std/containers/unordered_map.h>
+#include <AzCore/std/string/string.h>
+
+namespace AZ
+{
+    class ReflectContext;
+}
+
+namespace AzFramework
+{
+    struct SessionConfig;
+
+    //! CreateSessionRequest
+    //! The container for CreateSession request parameters.
+    struct CreateSessionRequest
+    {
+        AZ_RTTI(CreateSessionRequest, "{E39C2A45-89C9-4CFB-B337-9734DC798930}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        CreateSessionRequest() = default;
+        virtual ~CreateSessionRequest() = default;
+
+        // A unique identifier for a player or entity creating the session.
+        AZStd::string m_creatorId;
+
+        // A collection of custom properties for a session.
+        AZStd::unordered_map<AZStd::string, AZStd::string> m_sessionProperties;
+
+        // A descriptive label that is associated with a session.
+        AZStd::string m_sessionName;
+
+        // The maximum number of players that can be connected simultaneously to the session.
+        uint64_t m_maxPlayer = 0;
+    };
+
+    //! SearchSessionsRequest
+    //! The container for SearchSessions request parameters.
+    struct SearchSessionsRequest
+    {
+        AZ_RTTI(SearchSessionsRequest, "{B49207A8-8549-4ADB-B7D9-D7A4932F9B4B}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        SearchSessionsRequest() = default;
+        virtual ~SearchSessionsRequest() = default;
+
+        // String containing the search criteria for the session search. If no filter expression is included, the request returns results
+        // for all active sessions.
+        AZStd::string m_filterExpression;
+
+        // Instructions on how to sort the search results. If no sort expression is included, the request returns results in random order.
+        AZStd::string m_sortExpression;
+
+        // The maximum number of results to return.
+        uint8_t m_maxResult = 0;
+
+        // A token that indicates the start of the next sequential page of results.
+        AZStd::string m_nextToken;
+    };
+
+    //! SearchSessionsResponse
+    //! The container for SearchSession request results.
+    struct SearchSessionsResponse
+    {
+        AZ_RTTI(SearchSessionsResponse, "{F93DE7DC-D381-4E08-8A3B-0B08F7C38714}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        SearchSessionsResponse() = default;
+        virtual ~SearchSessionsResponse() = default;
+
+        // A collection of sessions that match the search criteria and sorted in specific order.
+        AZStd::vector<SessionConfig> m_sessionConfigs;
+
+        // A token that indicates the start of the next sequential page of results.
+        AZStd::string m_nextToken;
+    };
+
+    //! JoinSessionRequest
+    //! The container for JoinSession request parameters.
+    struct JoinSessionRequest
+    {
+        AZ_RTTI(JoinSessionRequest, "{519769E8-3CDE-4385-A0D7-24DBB3685657}");
+        static void Reflect(AZ::ReflectContext* context);
+
+        JoinSessionRequest() = default;
+        virtual ~JoinSessionRequest() = default;
+
+        // A unique identifier for the session.
+        AZStd::string m_sessionId;
+
+        // A unique identifier for a player. Player IDs are developer-defined.
+        AZStd::string m_playerId;
+
+        // Developer-defined information related to a player.
+        AZStd::string m_playerData;
+    };
+} // namespace AzFramework

Code/Framework/AzFramework/AzFramework/Viewport/CameraInput.cpp

@@ -533,8 +533,8 @@ namespace AzFramework
         m_translateCameraInputChannelIds = translateCameraInputChannelIds;
     }
 
-    PivotCameraInput::PivotCameraInput(const InputChannelId& pivotChannelId)
-        : m_pivotChannelId(pivotChannelId)
+    OrbitCameraInput::OrbitCameraInput(const InputChannelId& orbitChannelId)
+        : m_orbitChannelId(orbitChannelId)
     {
         m_pivotFn = []([[maybe_unused]] const AZ::Vector3& position, [[maybe_unused]] const AZ::Vector3& direction)
         {
@@ -542,11 +542,11 @@ namespace AzFramework
         };
     }
 
-    bool PivotCameraInput::HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, const float scrollDelta)
+    bool OrbitCameraInput::HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, const float scrollDelta)
     {
         if (const auto* input = AZStd::get_if<DiscreteInputEvent>(&event))
         {
-            if (input->m_channelId == m_pivotChannelId)
+            if (input->m_channelId == m_orbitChannelId)
             {
                 if (input->m_state == InputChannel::State::Began)
                 {
@@ -561,13 +561,13 @@ namespace AzFramework
 
         if (Active())
         {
-            return m_pivotCameras.HandleEvents(event, cursorDelta, scrollDelta);
+            return m_orbitCameras.HandleEvents(event, cursorDelta, scrollDelta);
         }
 
         return !Idle();
     }
 
-    Camera PivotCameraInput::StepCamera(
+    Camera OrbitCameraInput::StepCamera(
         const Camera& targetCamera, const ScreenVector& cursorDelta, const float scrollDelta, const float deltaTime)
     {
         Camera nextCamera = targetCamera;
@@ -581,12 +581,12 @@ namespace AzFramework
         if (Active())
         {
             MovePivotDetached(nextCamera, m_pivotFn(targetCamera.Translation(), targetCamera.Rotation().GetBasisY()));
-            nextCamera = m_pivotCameras.StepCamera(nextCamera, cursorDelta, scrollDelta, deltaTime);
+            nextCamera = m_orbitCameras.StepCamera(nextCamera, cursorDelta, scrollDelta, deltaTime);
         }
 
         if (Ending())
         {
-            m_pivotCameras.Reset();
+            m_orbitCameras.Reset();
 
             nextCamera.m_pivot = nextCamera.Translation();
             nextCamera.m_offset = AZ::Vector3::CreateZero();
@@ -595,12 +595,12 @@ namespace AzFramework
         return nextCamera;
     }
 
-    void PivotCameraInput::SetPivotInputChannelId(const InputChannelId& pivotChanneId)
+    void OrbitCameraInput::SetOrbitInputChannelId(const InputChannelId& orbitChanneId)
     {
-        m_pivotChannelId = pivotChanneId;
+        m_orbitChannelId = orbitChanneId;
     }
 
-    PivotDollyScrollCameraInput::PivotDollyScrollCameraInput()
+    OrbitDollyScrollCameraInput::OrbitDollyScrollCameraInput()
     {
         m_scrollSpeedFn = []() constexpr
         {
@@ -608,7 +608,7 @@ namespace AzFramework
         };
     }
 
-    bool PivotDollyScrollCameraInput::HandleEvents(
+    bool OrbitDollyScrollCameraInput::HandleEvents(
         const InputEvent& event, [[maybe_unused]] const ScreenVector& cursorDelta, [[maybe_unused]] const float scrollDelta)
     {
         if (const auto* scroll = AZStd::get_if<ScrollEvent>(&event))
@@ -619,36 +619,45 @@ namespace AzFramework
         return !Idle();
     }
 
-    static Camera PivotDolly(const Camera& targetCamera, const float delta)
+    static Camera OrbitDolly(const Camera& targetCamera, const float delta)
     {
         Camera nextCamera = targetCamera;
 
-        const auto pivotDirection = targetCamera.m_offset.GetNormalized();
-        nextCamera.m_offset -= pivotDirection * delta;
-        const auto pivotDot = targetCamera.m_offset.Dot(nextCamera.m_offset);
-        const auto distance = nextCamera.m_offset.GetLength() * AZ::GetSign(pivotDot);
-
-        const auto minDistance = 0.01f;
-        if (distance < minDistance || pivotDot < 0.0f)
+        // handle case where pivot and offset may be the same to begin with
+        // choose negative y-axis for offset to default to moving the camera backwards from the pivot (standard centered pivot behavior)
+        const auto pivotDirection = [&targetCamera]
         {
-            nextCamera.m_offset = pivotDirection * minDistance;
+            if (const auto offsetLength = targetCamera.m_offset.GetLength(); AZ::IsCloseMag(offsetLength, 0.0f))
+            {
+                return -AZ::Vector3::CreateAxisY();
+            }
+            else
+            {
+                return targetCamera.m_offset / offsetLength;
+            }
+        }();
+
+        nextCamera.m_offset -= pivotDirection * delta;
+        if (pivotDirection.Dot(nextCamera.m_offset) < 0.0f)
+        {
+            nextCamera.m_offset = pivotDirection * 0.001f;
         }
 
         return nextCamera;
     }
 
-    Camera PivotDollyScrollCameraInput::StepCamera(
+    Camera OrbitDollyScrollCameraInput::StepCamera(
         const Camera& targetCamera,
         [[maybe_unused]] const ScreenVector& cursorDelta,
         const float scrollDelta,
         [[maybe_unused]] const float deltaTime)
     {
-        const auto nextCamera = PivotDolly(targetCamera, aznumeric_cast<float>(scrollDelta) * m_scrollSpeedFn());
+        const auto nextCamera = OrbitDolly(targetCamera, aznumeric_cast<float>(scrollDelta) * m_scrollSpeedFn());
         EndActivation();
         return nextCamera;
     }
 
-    PivotDollyMotionCameraInput::PivotDollyMotionCameraInput(const InputChannelId& dollyChannelId)
+    OrbitDollyMotionCameraInput::OrbitDollyMotionCameraInput(const InputChannelId& dollyChannelId)
         : m_dollyChannelId(dollyChannelId)
     {
         m_motionSpeedFn = []() constexpr
@@ -657,28 +666,28 @@ namespace AzFramework
         };
     }
 
-    bool PivotDollyMotionCameraInput::HandleEvents(
+    bool OrbitDollyMotionCameraInput::HandleEvents(
         const InputEvent& event, [[maybe_unused]] const ScreenVector& cursorDelta, [[maybe_unused]] const float scrollDelta)
     {
         HandleActivationEvents(event, m_dollyChannelId, cursorDelta, m_clickDetector, *this);
         return CameraInputUpdatingAfterMotion(*this);
     }
 
-    Camera PivotDollyMotionCameraInput::StepCamera(
+    Camera OrbitDollyMotionCameraInput::StepCamera(
         const Camera& targetCamera,
         const ScreenVector& cursorDelta,
         [[maybe_unused]] const float scrollDelta,
         [[maybe_unused]] const float deltaTime)
     {
-        return PivotDolly(targetCamera, aznumeric_cast<float>(cursorDelta.m_y) * m_motionSpeedFn());
+        return OrbitDolly(targetCamera, aznumeric_cast<float>(cursorDelta.m_y) * m_motionSpeedFn());
     }
 
-    void PivotDollyMotionCameraInput::SetDollyInputChannelId(const InputChannelId& dollyChannelId)
+    void OrbitDollyMotionCameraInput::SetDollyInputChannelId(const InputChannelId& dollyChannelId)
     {
         m_dollyChannelId = dollyChannelId;
     }
 
-    ScrollTranslationCameraInput::ScrollTranslationCameraInput()
+    LookScrollTranslationCameraInput::LookScrollTranslationCameraInput()
     {
         m_scrollSpeedFn = []() constexpr
         {
@@ -686,7 +695,7 @@ namespace AzFramework
         };
     }
 
-    bool ScrollTranslationCameraInput::HandleEvents(
+    bool LookScrollTranslationCameraInput::HandleEvents(
         const InputEvent& event, [[maybe_unused]] const ScreenVector& cursorDelta, [[maybe_unused]] const float scrollDelta)
     {
         if (const auto* scroll = AZStd::get_if<ScrollEvent>(&event))
@@ -697,7 +706,7 @@ namespace AzFramework
         return !Idle();
     }
 
-    Camera ScrollTranslationCameraInput::StepCamera(
+    Camera LookScrollTranslationCameraInput::StepCamera(
         const Camera& targetCamera,
         [[maybe_unused]] const ScreenVector& cursorDelta,
         const float scrollDelta,
@@ -771,6 +780,73 @@ namespace AzFramework
         return camera;
     }
 
+    FocusCameraInput::FocusCameraInput(const InputChannelId& focusChannelId, FocusOffsetFn offsetFn)
+        : m_focusChannelId(focusChannelId)
+        , m_offsetFn(offsetFn)
+    {
+    }
+
+    bool FocusCameraInput::HandleEvents(
+        const InputEvent& event, [[maybe_unused]] const ScreenVector& cursorDelta, [[maybe_unused]] float scrollDelta)
+    {
+        if (const auto* input = AZStd::get_if<DiscreteInputEvent>(&event))
+        {
+            if (input->m_channelId == m_focusChannelId && input->m_state == InputChannel::State::Began)
+            {
+                BeginActivation();
+            }
+        }
+
+        return !Idle();
+    }
+
+    Camera FocusCameraInput::StepCamera(
+        const Camera& targetCamera,
+        [[maybe_unused]] const ScreenVector& cursorDelta,
+        [[maybe_unused]] float scrollDelta,
+        [[maybe_unused]] float deltaTime)
+    {
+        if (Beginning())
+        {
+            // as the camera starts, record the camera we would like to end up as
+            m_nextCamera.m_offset = m_offsetFn(m_pivotFn().GetDistance(targetCamera.Translation()));
+            const auto angles =
+                EulerAngles(AZ::Matrix3x3::CreateFromMatrix3x4(AZ::Matrix3x4::CreateLookAt(targetCamera.Translation(), m_pivotFn())));
+            m_nextCamera.m_pitch = angles.GetX();
+            m_nextCamera.m_yaw = angles.GetZ();
+            m_nextCamera.m_pivot = targetCamera.m_pivot;
+        }
+
+        // end the behavior when the camera is in alignment
+        if (AZ::IsCloseMag(targetCamera.m_pitch, m_nextCamera.m_pitch) && AZ::IsCloseMag(targetCamera.m_yaw, m_nextCamera.m_yaw))
+        {
+            EndActivation();
+        }
+
+        return m_nextCamera;
+    }
+
+    void FocusCameraInput::SetPivotFn(PivotFn pivotFn)
+    {
+        m_pivotFn = AZStd::move(pivotFn);
+    }
+
+    void FocusCameraInput::SetFocusInputChannelId(const InputChannelId& focusChannelId)
+    {
+        m_focusChannelId = focusChannelId;
+    }
+
+    bool CustomCameraInput::HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, const float scrollDelta)
+    {
+        return m_handleEventsFn(*this, event, cursorDelta, scrollDelta);
+    }
+
+    Camera CustomCameraInput::StepCamera(
+        const Camera& targetCamera, const ScreenVector& cursorDelta, const float scrollDelta, const float deltaTime)
+    {
+        return m_stepCameraFn(*this, targetCamera, cursorDelta, scrollDelta, deltaTime);
+    }
+
     InputEvent BuildInputEvent(const InputChannel& inputChannel, const WindowSize& windowSize)
     {
         const auto& inputChannelId = inputChannel.GetInputChannelId();

Code/Framework/AzFramework/AzFramework/Viewport/CameraInput.h

@@ -30,8 +30,11 @@ namespace AzFramework
     AZ::Vector3 EulerAngles(const AZ::Matrix3x3& orientation);
 
     //! A simple camera representation using spherical coordinates as input (pitch, yaw, pivot and offset).
-    //! The cameras transform and view can be obtained through accessor functions that use the internal
+    //! The camera's transform and view can be obtained through accessor functions that use the internal
     //! spherical coordinates to calculate the position and orientation.
+    //! @note Modifying m_pivot directly and leaving m_offset as zero will produce a free look camera effect, giving
+    //! m_offset a value (e.g. in negative Y only) will produce an orbit camera effect, modifying X and Z of m_offset
+    //! will further alter the camera translation in relation to m_pivot so it appears off center.
     struct Camera
     {
         AZ::Vector3 m_pivot = AZ::Vector3::CreateZero(); //!< Pivot point to rotate about (modified in world space).
@@ -291,7 +294,7 @@ namespace AzFramework
         Cameras m_cameras; //!< Represents a collection of camera inputs that together provide a camera controller.
 
     private:
-        ScreenVector m_motionDelta; //!< The delta used for look/pivot/pan (rotation + translation) - two dimensional.
+        ScreenVector m_motionDelta; //!< The delta used for look/orbit/pan (rotation + translation) - two dimensional.
         CursorState m_cursorState; //!< The current and previous position of the cursor (used to calculate movement delta).
         float m_scrollDelta = 0.0f; //!< The delta used for dolly/movement (translation) - one dimensional.
         bool m_handlingEvents = false; //!< Is the camera system currently handling events (events are consumed and not propagated).
@@ -316,7 +319,7 @@ namespace AzFramework
         return AZStd::fmod(yaw + AZ::Constants::TwoPi, AZ::Constants::TwoPi);
     }
 
-    //! A camera input to handle motion deltas that can rotate or pivot the camera.
+    //! A camera input to handle motion deltas that can change the orientation of the camera (update pitch and yaw).
     class RotateCameraInput : public CameraInput
     {
     public:
@@ -348,15 +351,16 @@ namespace AzFramework
     //! PanAxes build function that will return a pair of pan axes depending on the camera orientation.
     using PanAxesFn = AZStd::function<PanAxes(const Camera& camera)>;
 
-    //! PanAxes to use while in 'look' camera behavior (free look).
+    //! PanAxes to use while in 'look' or 'orbit' camera behavior.
     inline PanAxes LookPan(const Camera& camera)
     {
         const AZ::Matrix3x3 orientation = camera.Rotation();
         return { orientation.GetBasisX(), orientation.GetBasisZ() };
     }
 
-    //! PanAxes to use while in 'pivot' camera behavior.
-    inline PanAxes PivotPan(const Camera& camera)
+    //! Optional PanAxes to use while in 'orbit' camera behavior.
+    //! @note This will move the camera in the local X/Y plane instead of usual X/Z plane.
+    inline PanAxes OrbitPan(const Camera& camera)
     {
         const AZ::Matrix3x3 orientation = camera.Rotation();
 
@@ -370,14 +374,23 @@ namespace AzFramework
         return { basisX, basisY };
     }
 
+    //! TranslationDeltaFn is used by PanCameraInput and TranslateCameraInput
+    //! @note Choose the appropriate function if the behavior should be operating as a free look camera (TranslatePivotLook)
+    //! or an orbit camera (TranslateOffsetOrbit).
     using TranslationDeltaFn = AZStd::function<void(Camera& camera, const AZ::Vector3& delta)>;
 
-    inline void TranslatePivot(Camera& camera, const AZ::Vector3& delta)
+    //! Update the pivot camera position.
+    //! @note delta will need to have been transformed to world space, e.g. To move the camera right, (1, 0, 0) must
+    //! first be transformed by the orientation of the camera before being applied to m_pivot.
+    inline void TranslatePivotLook(Camera& camera, const AZ::Vector3& delta)
     {
         camera.m_pivot += delta;
     }
 
-    inline void TranslateOffset(Camera& camera, const AZ::Vector3& delta)
+    //! Update the offset camera position.
+    //! @note delta still needs to be transformed to world space (as with TranslatePivotLook) but internally this is undone
+    //! to be performed in local space when being applied to m_offset.
+    inline void TranslateOffsetOrbit(Camera& camera, const AZ::Vector3& delta)
     {
         camera.m_offset += camera.View().TransformVector(delta);
     }
@@ -409,7 +422,7 @@ namespace AzFramework
     //! Axes to use while translating the camera.
     using TranslationAxesFn = AZStd::function<AZ::Matrix3x3(const Camera& camera)>;
 
-    //! TranslationAxes to use while in 'look' camera behavior (free look).
+    //! TranslationAxes to use while in 'look' or 'orbit' camera behavior.
     inline AZ::Matrix3x3 LookTranslation(const Camera& camera)
     {
         const AZ::Matrix3x3 orientation = camera.Rotation();
@@ -421,8 +434,8 @@ namespace AzFramework
         return AZ::Matrix3x3::CreateFromColumns(basisX, basisY, basisZ);
     }
 
-    //! TranslationAxes to use while in 'pivot' camera behavior.
-    inline AZ::Matrix3x3 PivotTranslation(const Camera& camera)
+    //! Optional TranslationAxes to use while in 'orbit' camera behavior.
+    inline AZ::Matrix3x3 OrbitTranslation(const Camera& camera)
     {
         const AZ::Matrix3x3 orientation = camera.Rotation();
 
@@ -535,11 +548,11 @@ namespace AzFramework
         bool m_boost = false; //!< Is the translation speed currently being multiplied/scaled upwards.
     };
 
-    //! A camera input to handle discrete scroll events that can modify the camera pivot distance.
-    class PivotDollyScrollCameraInput : public CameraInput
+    //! A camera input to handle discrete scroll events that can modify the camera offset.
+    class OrbitDollyScrollCameraInput : public CameraInput
     {
     public:
-        PivotDollyScrollCameraInput();
+        OrbitDollyScrollCameraInput();
 
         // CameraInput overrides ...
         bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
@@ -548,11 +561,11 @@ namespace AzFramework
         AZStd::function<float()> m_scrollSpeedFn;
     };
 
-    //! A camera input to handle motion deltas that can modify the camera pivot distance.
-    class PivotDollyMotionCameraInput : public CameraInput
+    //! A camera input to handle motion deltas that can modify the camera offset.
+    class OrbitDollyMotionCameraInput : public CameraInput
     {
     public:
-        explicit PivotDollyMotionCameraInput(const InputChannelId& dollyChannelId);
+        explicit OrbitDollyMotionCameraInput(const InputChannelId& dollyChannelId);
 
         // CameraInput overrides ...
         bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
@@ -569,10 +582,10 @@ namespace AzFramework
     };
 
     //! A camera input to handle discrete scroll events that can scroll (translate) the camera along its forward axis.
-    class ScrollTranslationCameraInput : public CameraInput
+    class LookScrollTranslationCameraInput : public CameraInput
     {
     public:
-        ScrollTranslationCameraInput();
+        LookScrollTranslationCameraInput();
 
         // CameraInput overrides ...
         bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
@@ -583,40 +596,96 @@ namespace AzFramework
 
     //! A camera input that doubles as its own set of camera inputs.
     //! It is 'exclusive', so does not overlap with other sibling camera inputs - it runs its own set of camera inputs as 'children'.
-    class PivotCameraInput : public CameraInput
+    class OrbitCameraInput : public CameraInput
     {
     public:
         using PivotFn = AZStd::function<AZ::Vector3(const AZ::Vector3& position, const AZ::Vector3& direction)>;
 
-        explicit PivotCameraInput(const InputChannelId& pivotChannelId);
+        explicit OrbitCameraInput(const InputChannelId& orbitChannelId);
 
         // CameraInput overrides ...
         bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
         Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
         bool Exclusive() const override;
 
-        void SetPivotInputChannelId(const InputChannelId& pivotChanneId);
+        void SetOrbitInputChannelId(const InputChannelId& orbitChanneId);
 
-        Cameras m_pivotCameras; //!< The camera inputs to run when this camera input is active (only these will run as it is exclusive).
+        Cameras m_orbitCameras; //!< The camera inputs to run when this camera input is active (only these will run as it is exclusive).
 
         //! Override the default behavior for how a pivot point is calculated.
         void SetPivotFn(PivotFn pivotFn);
 
     private:
-        InputChannelId m_pivotChannelId; //!< Input channel to begin the pivot camera input.
-        PivotFn m_pivotFn; //!< The pivot position to use for this pivot camera (how is the pivot point calculated/retrieved).
+        InputChannelId m_orbitChannelId; //!< Input channel to begin the orbit camera input.
+        PivotFn m_pivotFn; //!< The pivot position to use for this orbit camera (how is the pivot point calculated/retrieved).
     };
 
-    inline void PivotCameraInput::SetPivotFn(PivotFn pivotFn)
+    inline void OrbitCameraInput::SetPivotFn(PivotFn pivotFn)
     {
         m_pivotFn = AZStd::move(pivotFn);
     }
 
-    inline bool PivotCameraInput::Exclusive() const
+    inline bool OrbitCameraInput::Exclusive() const
     {
         return true;
     }
 
+    //! Callback to use for FocusCameraInput when a free look camera is being used.
+    //! @note This is when offset is zero.
+    inline AZ::Vector3 FocusLook(float)
+    {
+        return AZ::Vector3::CreateZero();
+    }
+
+    //! Callback to use for FocusCameraInput when a orbit camera is being used.
+    //! @note This is when offset is non zero.
+    inline AZ::Vector3 FocusOrbit(const float length)
+    {
+        return AZ::Vector3::CreateAxisY(-length);
+    }
+
+    using FocusOffsetFn = AZStd::function<AZ::Vector3(float)>;
+
+    //! A focus behavior to align the camera view to the position returned by the pivot function.
+    //! @note This only alters the camera orientation, the translation is unaffected.
+    class FocusCameraInput : public CameraInput
+    {
+    public:
+        using PivotFn = AZStd::function<AZ::Vector3()>;
+
+        FocusCameraInput(const InputChannelId& focusChannelId, FocusOffsetFn offsetFn);
+
+        // CameraInput overrides ...
+        bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
+        Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
+
+        //! Override the default behavior for how a pivot point is calculated.
+        void SetPivotFn(PivotFn pivotFn);
+
+        void SetFocusInputChannelId(const InputChannelId& focusChannelId);
+
+    private:
+        InputChannelId m_focusChannelId; //!< Input channel to begin the focus camera input.
+        Camera m_nextCamera;
+        PivotFn m_pivotFn;
+        FocusOffsetFn m_offsetFn;
+    };
+
+    //! Provides a CameraInput type that can be implemented without needing to create a new type deriving from CameraInput.
+    //! This can be very useful for specific use cases that are less generally applicable.
+    class CustomCameraInput : public CameraInput
+    {
+    public:
+        // CameraInput overrides ...
+        bool HandleEvents(const InputEvent& event, const ScreenVector& cursorDelta, float scrollDelta) override;
+        Camera StepCamera(const Camera& targetCamera, const ScreenVector& cursorDelta, float scrollDelta, float deltaTime) override;
+
+        //! HandleEvents delegates directly to m_handleEventsFn.
+        AZStd::function<bool(CameraInput&, const InputEvent&, const ScreenVector&, float)> m_handleEventsFn;
+        //! StepCamera delegates directly to m_stepCameraFn.
+        AZStd::function<Camera(CameraInput&, const Camera&, const ScreenVector&, float, float)> m_stepCameraFn;
+    };
+
     //! Map from a generic InputChannel event to a camera specific InputEvent.
     InputEvent BuildInputEvent(const InputChannel& inputChannel, const WindowSize& windowSize);
 } // namespace AzFramework

Code/Framework/AzFramework/AzFramework/azframework_files.cmake

@@ -167,6 +167,10 @@ set(FILES
     Logging/MissingAssetLogger.cpp
     Logging/MissingAssetLogger.h
     Logging/MissingAssetNotificationBus.h
+    Matchmaking/IMatchmakingRequests.h
+    Matchmaking/MatchmakingRequests.cpp
+    Matchmaking/MatchmakingRequests.h
+    Matchmaking/MatchmakingNotifications.h
     Scene/Scene.h
     Scene/Scene.inl
     Scene/Scene.cpp
@@ -181,8 +185,9 @@ set(FILES
     Script/ScriptRemoteDebugging.cpp
     Script/ScriptRemoteDebugging.h
     Session/ISessionHandlingRequests.h
-    Session/ISessionRequests.cpp
     Session/ISessionRequests.h
+    Session/SessionRequests.cpp
+    Session/SessionRequests.h
     Session/SessionConfig.cpp
     Session/SessionConfig.h
     Session/SessionNotifications.h

Code/Framework/AzFramework/Platform/Common/Xcb/AzFramework/XcbInputDeviceKeyboard.cpp

@@ -20,6 +20,15 @@
 
 namespace AzFramework
 {
+    // xcb-xkb does not provide a generic event type, so we define our own.
+    // These fields are enough to get to the xkbType field, which can then be
+    // read to typecast the event to the right concrete type.
+    struct XcbXkbGenericEventT
+    {
+        uint8_t response_type;
+        uint8_t xkbType;
+    };
+
     XcbInputDeviceKeyboard::XcbInputDeviceKeyboard(InputDeviceKeyboard& inputDevice)
         : InputDeviceKeyboard::Implementation(inputDevice)
     {
@@ -39,19 +48,22 @@ namespace AzFramework
             return;
         }
 
-        XcbStdFreePtr<xcb_xkb_use_extension_reply_t> xkbUseExtensionReply{
-            xcb_xkb_use_extension_reply(connection, xcb_xkb_use_extension(connection, 1, 0), nullptr)
-        };
-        if (!xkbUseExtensionReply)
+        int initializeXkbExtensionSuccess = xkb_x11_setup_xkb_extension(
+            connection,
+            1,
+            0,
+            XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS,
+            nullptr,
+            nullptr,
+            &m_xkbEventCode,
+            nullptr
+        );
+
+        if (!initializeXkbExtensionSuccess)
         {
             AZ_Warning("ApplicationLinux", false, "Failed to initialize the xkb extension");
             return;
         }
-        if (!xkbUseExtensionReply->supported)
-        {
-            AZ_Warning("ApplicationLinux", false, "The X server does not support the xkb extension");
-            return;
-        }
 
         m_coreDeviceId = xkb_x11_get_core_keyboard_device_id(connection);
 
@@ -59,6 +71,43 @@ namespace AzFramework
         m_xkbKeymap.reset(xkb_x11_keymap_new_from_device(m_xkbContext.get(), connection, m_coreDeviceId, XKB_KEYMAP_COMPILE_NO_FLAGS));
         m_xkbState.reset(xkb_x11_state_new_from_device(m_xkbKeymap.get(), connection, m_coreDeviceId));
 
+        const uint16_t affectMap =
+            XCB_XKB_MAP_PART_KEY_TYPES
+            | XCB_XKB_MAP_PART_KEY_SYMS
+            | XCB_XKB_MAP_PART_MODIFIER_MAP
+            | XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS
+            | XCB_XKB_MAP_PART_KEY_ACTIONS
+            | XCB_XKB_MAP_PART_KEY_BEHAVIORS
+            | XCB_XKB_MAP_PART_VIRTUAL_MODS
+            | XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP
+            ;
+
+        const uint16_t selectedEvents =
+            XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY
+            | XCB_XKB_EVENT_TYPE_MAP_NOTIFY
+            | XCB_XKB_EVENT_TYPE_STATE_NOTIFY
+            ;
+
+        XcbStdFreePtr<xcb_generic_error_t> error{xcb_request_check(
+            connection,
+            xcb_xkb_select_events(
+                connection,
+                /* deviceSpec = */ XCB_XKB_ID_USE_CORE_KBD,
+                /* affectWhich = */ selectedEvents,
+                /* clear = */ 0,
+                /* selectAll = */ selectedEvents,
+                /* affectMap = */ affectMap,
+                /* map = */ affectMap,
+                /* details = */ nullptr
+            )
+        )};
+
+        if (error)
+        {
+            AZ_Warning("ApplicationLinux", false, "failed to select notify events from XKB");
+            return;
+        }
+
         m_initialized = true;
     }
 
@@ -70,15 +119,17 @@ namespace AzFramework
 
     bool XcbInputDeviceKeyboard::HasTextEntryStarted() const
     {
-        return false;
+        return m_hasTextEntryStarted;
     }
 
     void XcbInputDeviceKeyboard::TextEntryStart(const InputDeviceKeyboard::VirtualKeyboardOptions& options)
     {
+        m_hasTextEntryStarted = true;
     }
 
     void XcbInputDeviceKeyboard::TextEntryStop()
     {
+        m_hasTextEntryStarted = false;
     }
 
     void XcbInputDeviceKeyboard::TickInputDevice()
@@ -93,30 +144,45 @@ namespace AzFramework
             return;
         }
 
-        switch (event->response_type & ~0x80)
+        const auto responseType = event->response_type & ~0x80;
+        if (responseType == XCB_KEY_PRESS)
         {
-        case XCB_KEY_PRESS:
-        {
-            auto* keyPress = reinterpret_cast<xcb_key_press_event_t*>(event);
+            const auto* keyPress = reinterpret_cast<xcb_key_press_event_t*>(event);
+            {
+                auto text = TextFromKeycode(m_xkbState.get(), keyPress->detail);
+                if (!text.empty())
+                {
+                    QueueRawTextEvent(AZStd::move(text));
+                }
+            }
 
-            const InputChannelId* key = InputChannelFromKeyEvent(keyPress->detail);
-            if (key)
+            if (const InputChannelId* key = InputChannelFromKeyEvent(keyPress->detail))
             {
                 QueueRawKeyEvent(*key, true);
             }
-            break;
         }
-        case XCB_KEY_RELEASE:
+        else if (responseType == XCB_KEY_RELEASE)
         {
-            auto* keyRelease = reinterpret_cast<xcb_key_release_event_t*>(event);
+            const auto* keyRelease = reinterpret_cast<xcb_key_release_event_t*>(event);
 
             const InputChannelId* key = InputChannelFromKeyEvent(keyRelease->detail);
             if (key)
             {
                 QueueRawKeyEvent(*key, false);
             }
-            break;
         }
+        else if (responseType == m_xkbEventCode)
+        {
+            const auto* xkbEvent = reinterpret_cast<XcbXkbGenericEventT*>(event);
+            switch (xkbEvent->xkbType)
+            {
+            case XCB_XKB_STATE_NOTIFY:
+            {
+                const auto* stateNotifyEvent = reinterpret_cast<xcb_xkb_state_notify_event_t*>(event);
+                UpdateState(stateNotifyEvent);
+                break;
+            }
+            }
         }
     }
 
@@ -268,4 +334,34 @@ namespace AzFramework
             default: return nullptr;
         }
     }
+
+    AZStd::string XcbInputDeviceKeyboard::TextFromKeycode(xkb_state* state, xkb_keycode_t code)
+    {
+        // Find out how much of a buffer we need
+        const size_t size = xkb_state_key_get_utf8(state, code, nullptr, 0);
+        if (!size)
+        {
+            return {};
+        }
+        // xkb_state_key_get_utf8 will null-terminate the resulting string, and
+        // will truncate the result to `size - 1` if there is not enough space
+        // for the null byte. The first call returns the size of the resulting
+        // string without including the null byte. AZStd::string internally
+        // includes space for the null byte, but that is not included in its
+        // `size()`. xkb_state_key_get_utf8 will always set `buf[size - 1] =
+        // 0`, so add 1 to `chars.size()` to include that internal null byte in
+        // the string.
+        AZStd::string chars;
+        chars.resize_no_construct(size);
+        xkb_state_key_get_utf8(state, code, chars.data(), chars.size() + 1);
+        return chars;
+    }
+
+    void XcbInputDeviceKeyboard::UpdateState(const xcb_xkb_state_notify_event_t* state)
+    {
+        if (m_initialized)
+        {
+            xkb_state_update_mask(m_xkbState.get(), state->baseMods, state->latchedMods, state->lockedMods, state->baseGroup, state->latchedGroup, state->lockedGroup);
+        }
+    }
 } // namespace AzFramework

Code/Framework/AzFramework/Platform/Common/Xcb/AzFramework/XcbInputDeviceKeyboard.h

@@ -13,6 +13,8 @@
 #include <xcb/xcb.h>
 #include <xkbcommon/xkbcommon.h>
 
+struct xcb_xkb_state_notify_event_t;
+
 namespace AzFramework
 {
     class XcbInputDeviceKeyboard
@@ -37,10 +39,16 @@ namespace AzFramework
     private:
         [[nodiscard]] const InputChannelId* InputChannelFromKeyEvent(xcb_keycode_t code) const;
 
+        static AZStd::string TextFromKeycode(xkb_state* state, xkb_keycode_t code);
+
+        void UpdateState(const xcb_xkb_state_notify_event_t* state);
+
         XcbUniquePtr<xkb_context, xkb_context_unref> m_xkbContext;
         XcbUniquePtr<xkb_keymap, xkb_keymap_unref> m_xkbKeymap;
         XcbUniquePtr<xkb_state, xkb_state_unref> m_xkbState;
         int m_coreDeviceId{-1};
+        uint8_t m_xkbEventCode{0};
         bool m_initialized{false};
+        bool m_hasTextEntryStarted{false};
     };
 } // namespace AzFramework

Code/Framework/AzFramework/Tests/CameraInputTests.cpp

@@ -53,31 +53,31 @@ namespace UnitTest
             };
 
             m_firstPersonTranslateCamera = AZStd::make_shared<AzFramework::TranslateCameraInput>(
-                m_translateCameraInputChannelIds, AzFramework::LookTranslation, AzFramework::TranslatePivot);
+                m_translateCameraInputChannelIds, AzFramework::LookTranslation, AzFramework::TranslatePivotLook);
 
-            m_pivotCamera = AZStd::make_shared<AzFramework::PivotCameraInput>(m_pivotChannelId);
-            m_pivotCamera->SetPivotFn(
+            m_orbitCamera = AZStd::make_shared<AzFramework::OrbitCameraInput>(m_orbitChannelId);
+            m_orbitCamera->SetPivotFn(
                 [this](const AZ::Vector3&, const AZ::Vector3&)
                 {
                     return m_pivot;
                 });
 
-            auto pivotRotateCamera = AZStd::make_shared<AzFramework::RotateCameraInput>(AzFramework::InputDeviceMouse::Button::Left);
+            auto orbitRotateCamera = AZStd::make_shared<AzFramework::RotateCameraInput>(AzFramework::InputDeviceMouse::Button::Left);
             // set rotate speed to be a value that will scale motion delta (pixels moved) by a thousandth.
-            pivotRotateCamera->m_rotateSpeedFn = []()
+            orbitRotateCamera->m_rotateSpeedFn = []()
             {
                 return 0.001f;
             };
 
-            auto pivotTranslateCamera = AZStd::make_shared<AzFramework::TranslateCameraInput>(
-                m_translateCameraInputChannelIds, AzFramework::PivotTranslation, AzFramework::TranslateOffset);
+            auto orbitTranslateCamera = AZStd::make_shared<AzFramework::TranslateCameraInput>(
+                m_translateCameraInputChannelIds, AzFramework::OrbitTranslation, AzFramework::TranslateOffsetOrbit);
 
-            m_pivotCamera->m_pivotCameras.AddCamera(pivotRotateCamera);
-            m_pivotCamera->m_pivotCameras.AddCamera(pivotTranslateCamera);
+            m_orbitCamera->m_orbitCameras.AddCamera(orbitRotateCamera);
+            m_orbitCamera->m_orbitCameras.AddCamera(orbitTranslateCamera);
 
             m_cameraSystem->m_cameras.AddCamera(m_firstPersonRotateCamera);
             m_cameraSystem->m_cameras.AddCamera(m_firstPersonTranslateCamera);
-            m_cameraSystem->m_cameras.AddCamera(m_pivotCamera);
+            m_cameraSystem->m_cameras.AddCamera(m_orbitCamera);
 
             // these tests rely on using motion delta, not cursor positions (default is true)
             AzFramework::ed_cameraSystemUseCursor = false;
@@ -87,7 +87,7 @@ namespace UnitTest
         {
             AzFramework::ed_cameraSystemUseCursor = true;
 
-            m_pivotCamera.reset();
+            m_orbitCamera.reset();
             m_firstPersonRotateCamera.reset();
             m_firstPersonTranslateCamera.reset();
 
@@ -97,11 +97,11 @@ namespace UnitTest
             AllocatorsTestFixture::TearDown();
         }
 
-        AzFramework::InputChannelId m_pivotChannelId = AzFramework::InputChannelId("keyboard_key_modifier_alt_l");
+        AzFramework::InputChannelId m_orbitChannelId = AzFramework::InputChannelId("keyboard_key_modifier_alt_l");
         AzFramework::TranslateCameraInputChannelIds m_translateCameraInputChannelIds;
         AZStd::shared_ptr<AzFramework::RotateCameraInput> m_firstPersonRotateCamera;
         AZStd::shared_ptr<AzFramework::TranslateCameraInput> m_firstPersonTranslateCamera;
-        AZStd::shared_ptr<AzFramework::PivotCameraInput> m_pivotCamera;
+        AZStd::shared_ptr<AzFramework::OrbitCameraInput> m_orbitCamera;
         AZ::Vector3 m_pivot = AZ::Vector3::CreateZero();
 
         //! This is approximately Pi/2 * 1000 - this can be used to rotate the camera 90 degrees (pitch or yaw based
@@ -109,17 +109,17 @@ namespace UnitTest
         inline static const int PixelMotionDelta = 1570;
     };
 
-    TEST_F(CameraInputFixture, BeginAndEndPivotCameraInputConsumesCorrectEvents)
+    TEST_F(CameraInputFixture, BeginAndEndOrbitCameraInputConsumesCorrectEvents)
     {
-        // begin pivot camera
+        // begin orbit camera
         const bool consumed1 = HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ AzFramework::InputDeviceKeyboard::Key::ModifierAltL,
                                                                                      AzFramework::InputChannel::State::Began });
-        // begin listening for pivot rotate (click detector) - event is not consumed
+        // begin listening for orbit rotate (click detector) - event is not consumed
         const bool consumed2 = HandleEventAndUpdate(
             AzFramework::DiscreteInputEvent{ AzFramework::InputDeviceMouse::Button::Left, AzFramework::InputChannel::State::Began });
-        // begin pivot rotate (mouse has moved sufficient distance to initiate)
+        // begin orbit rotate (mouse has moved sufficient distance to initiate)
         const bool consumed3 = HandleEventAndUpdate(AzFramework::HorizontalMotionEvent{ 5 });
-        // end pivot (mouse up) - event is not consumed
+        // end orbit (mouse up) - event is not consumed
         const bool consumed4 = HandleEventAndUpdate(
             AzFramework::DiscreteInputEvent{ AzFramework::InputDeviceMouse::Button::Left, AzFramework::InputChannel::State::Ended });
 
@@ -260,10 +260,10 @@ namespace UnitTest
         EXPECT_TRUE(activationEnded);
     }
 
-    TEST_F(CameraInputFixture, PivotCameraInputHandlesLookAtPointAndSelfAtSamePositionWhenPivoting)
+    TEST_F(CameraInputFixture, OrbitCameraInputHandlesLookAtPointAndSelfAtSamePositionWhenOrbiting)
     {
         // create pathological lookAtFn that just returns the same position as the camera
-        m_pivotCamera->SetPivotFn(
+        m_orbitCamera->SetPivotFn(
             [](const AZ::Vector3& position, [[maybe_unused]] const AZ::Vector3& direction)
             {
                 return position;
@@ -275,7 +275,7 @@ namespace UnitTest
             AZ::Transform::CreateFromQuaternionAndTranslation(
                 AZ::Quaternion::CreateFromEulerAnglesDegrees(AZ::Vector3(0.0f, 0.0f, 90.0f)), expectedCameraPosition));
 
-        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_pivotChannelId, AzFramework::InputChannel::State::Began });
+        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_orbitChannelId, AzFramework::InputChannel::State::Began });
 
         // verify the camera yaw has not changed and pivot point matches the expected camera position
         using ::testing::FloatNear;
@@ -321,14 +321,14 @@ namespace UnitTest
         EXPECT_THAT(m_camera.m_offset, IsClose(AZ::Vector3::CreateZero()));
     }
 
-    TEST_F(CameraInputFixture, PivotRotateCameraInputRotatesPitchOffsetByNinetyDegreesWithRequiredPixelDelta)
+    TEST_F(CameraInputFixture, OrbitRotateCameraInputRotatesPitchOffsetByNinetyDegreesWithRequiredPixelDelta)
     {
         const auto cameraStartingPosition = AZ::Vector3::CreateAxisY(-20.0f);
         m_targetCamera.m_pivot = cameraStartingPosition;
 
         m_pivot = AZ::Vector3::CreateAxisY(-10.0f);
 
-        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_pivotChannelId, AzFramework::InputChannel::State::Began });
+        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_orbitChannelId, AzFramework::InputChannel::State::Began });
         HandleEventAndUpdate(
             AzFramework::DiscreteInputEvent{ AzFramework::InputDeviceMouse::Button::Left, AzFramework::InputChannel::State::Began });
         HandleEventAndUpdate(AzFramework::VerticalMotionEvent{ PixelMotionDelta });
@@ -344,14 +344,14 @@ namespace UnitTest
         EXPECT_THAT(m_camera.Translation(), IsCloseTolerance(expectedCameraEndingPosition, 0.01f));
     }
 
-    TEST_F(CameraInputFixture, PivotRotateCameraInputRotatesYawOffsetByNinetyDegreesWithRequiredPixelDelta)
+    TEST_F(CameraInputFixture, OrbitRotateCameraInputRotatesYawOffsetByNinetyDegreesWithRequiredPixelDelta)
     {
         const auto cameraStartingPosition = AZ::Vector3(15.0f, -20.0f, 0.0f);
         m_targetCamera.m_pivot = cameraStartingPosition;
 
         m_pivot = AZ::Vector3(10.0f, -10.0f, 0.0f);
 
-        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_pivotChannelId, AzFramework::InputChannel::State::Began });
+        HandleEventAndUpdate(AzFramework::DiscreteInputEvent{ m_orbitChannelId, AzFramework::InputChannel::State::Began });
         HandleEventAndUpdate(
             AzFramework::DiscreteInputEvent{ AzFramework::InputDeviceMouse::Button::Left, AzFramework::InputChannel::State::Began });
         HandleEventAndUpdate(AzFramework::HorizontalMotionEvent{ -PixelMotionDelta });

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/Matchers.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <gmock/gmock.h>
+#include <AzCore/std/string/string.h>
+
+inline testing::PolymorphicMatcher<testing::internal::StrEqualityMatcher<AZStd::string>> StrEq(const AZStd::string& str)
+{
+    return ::testing::MakePolymorphicMatcher(testing::internal::StrEqualityMatcher<AZStd::string>(str, true, true));
+}

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/MockXcbInterface.cpp

@@ -28,6 +28,10 @@ xcb_generic_event_t* xcb_poll_for_event(xcb_connection_t* c)
 {
     return MockXcbInterface::Instance()->xcb_poll_for_event(c);
 }
+xcb_generic_error_t* xcb_request_check(xcb_connection_t* c, xcb_void_cookie_t cookie)
+{
+    return MockXcbInterface::Instance()->xcb_request_check(c, cookie);
+}
 
 // ----------------------------------------------------------------------------
 // xcb-xkb
@@ -39,6 +43,10 @@ xcb_xkb_use_extension_reply_t* xcb_xkb_use_extension_reply(xcb_connection_t* c,
 {
     return MockXcbInterface::Instance()->xcb_xkb_use_extension_reply(c, cookie, e);
 }
+xcb_void_cookie_t xcb_xkb_select_events(xcb_connection_t* c, xcb_xkb_device_spec_t deviceSpec, uint16_t affectWhich, uint16_t clear, uint16_t selectAll, uint16_t affectMap, uint16_t map, const void* details)
+{
+    return MockXcbInterface::Instance()->xcb_xkb_select_events(c, deviceSpec, affectWhich, clear, selectAll, affectMap, map, details);
+}
 
 // ----------------------------------------------------------------------------
 // xkb-x11
@@ -46,7 +54,7 @@ int32_t xkb_x11_get_core_keyboard_device_id(xcb_connection_t* connection)
 {
     return MockXcbInterface::Instance()->xkb_x11_get_core_keyboard_device_id(connection);
 }
-struct xkb_keymap* xkb_x11_keymap_new_from_device(struct xkb_context* context, xcb_connection_t* connection, int32_t device_id, enum xkb_keymap_compile_flags flags)
+xkb_keymap* xkb_x11_keymap_new_from_device(xkb_context* context, xcb_connection_t* connection, int32_t device_id, xkb_keymap_compile_flags flags)
 {
     return MockXcbInterface::Instance()->xkb_x11_keymap_new_from_device(context, connection, device_id, flags);
 }
@@ -54,28 +62,58 @@ xkb_state* xkb_x11_state_new_from_device(xkb_keymap* keymap, xcb_connection_t* c
 {
     return MockXcbInterface::Instance()->xkb_x11_state_new_from_device(keymap, connection, device_id);
 }
+int xkb_x11_setup_xkb_extension(
+    xcb_connection_t* connection,
+    uint16_t major_xkb_version,
+    uint16_t minor_xkb_version,
+    xkb_x11_setup_xkb_extension_flags flags,
+    uint16_t* major_xkb_version_out,
+    uint16_t* minor_xkb_version_out,
+    uint8_t* base_event_out,
+    uint8_t* base_error_out)
+{
+    return MockXcbInterface::Instance()->xkb_x11_setup_xkb_extension(
+        connection, major_xkb_version, minor_xkb_version, flags, major_xkb_version_out, minor_xkb_version_out, base_event_out,
+        base_error_out);
+}
 
 // ----------------------------------------------------------------------------
 // xkbcommon
-xkb_context* xkb_context_new(enum xkb_context_flags flags)
+xkb_context* xkb_context_new(xkb_context_flags flags)
 {
     return MockXcbInterface::Instance()->xkb_context_new(flags);
 }
-void xkb_context_unref(xkb_context *context)
+void xkb_context_unref(xkb_context* context)
 {
     return MockXcbInterface::Instance()->xkb_context_unref(context);
 }
-void xkb_keymap_unref(xkb_keymap *keymap)
+void xkb_keymap_unref(xkb_keymap* keymap)
 {
     return MockXcbInterface::Instance()->xkb_keymap_unref(keymap);
 }
-void xkb_state_unref(xkb_state *state)
+void xkb_state_unref(xkb_state* state)
 {
     return MockXcbInterface::Instance()->xkb_state_unref(state);
 }
-xkb_keysym_t xkb_state_key_get_one_sym(xkb_state *state, xkb_keycode_t key)
+xkb_keysym_t xkb_state_key_get_one_sym(xkb_state* state, xkb_keycode_t key)
 {
     return MockXcbInterface::Instance()->xkb_state_key_get_one_sym(state, key);
 }
+int xkb_state_key_get_utf8(xkb_state* state, xkb_keycode_t key, char* buffer, size_t size)
+{
+    return MockXcbInterface::Instance()->xkb_state_key_get_utf8(state, key, buffer, size);
+}
+xkb_state_component xkb_state_update_mask(
+    xkb_state* state,
+    xkb_mod_mask_t depressed_mods,
+    xkb_mod_mask_t latched_mods,
+    xkb_mod_mask_t locked_mods,
+    xkb_layout_index_t depressed_layout,
+    xkb_layout_index_t latched_layout,
+    xkb_layout_index_t locked_layout)
+{
+    return MockXcbInterface::Instance()->xkb_state_update_mask(
+        state, depressed_mods, latched_mods, locked_mods, depressed_layout, latched_layout, locked_layout);
+}
 
 }

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/MockXcbInterface.h

@@ -17,6 +17,7 @@
 #include <xcb/xkb.h>
 #undef explicit
 #include <xkbcommon/xkbcommon.h>
+#include <xkbcommon/xkbcommon-x11.h>
 
 #include "Printers.h"
 
@@ -35,6 +36,7 @@ struct xkb_keymap
 
 struct xkb_state
 {
+    xkb_mod_mask_t m_modifiers{};
 };
 
 class MockXcbInterface
@@ -48,7 +50,7 @@ public:
     MockXcbInterface(MockXcbInterface&&) = delete;
     MockXcbInterface& operator=(const MockXcbInterface&) = delete;
     MockXcbInterface& operator=(MockXcbInterface&&) = delete;
-    ~MockXcbInterface()
+    virtual ~MockXcbInterface()
     {
         self = nullptr;
     }
@@ -59,22 +61,27 @@ public:
     MOCK_CONST_METHOD2(xcb_connect, xcb_connection_t*(const char* displayname, int* screenp));
     MOCK_CONST_METHOD1(xcb_disconnect, void(xcb_connection_t* c));
     MOCK_CONST_METHOD1(xcb_poll_for_event, xcb_generic_event_t*(xcb_connection_t* c));
+    MOCK_CONST_METHOD2(xcb_request_check, xcb_generic_error_t*(xcb_connection_t* c, xcb_void_cookie_t cookie));
 
     // xcb-xkb
     MOCK_CONST_METHOD3(xcb_xkb_use_extension, xcb_xkb_use_extension_cookie_t(xcb_connection_t* c, uint16_t wantedMajor, uint16_t wantedMinor));
     MOCK_CONST_METHOD3(xcb_xkb_use_extension_reply, xcb_xkb_use_extension_reply_t*(xcb_connection_t* c, xcb_xkb_use_extension_cookie_t cookie, xcb_generic_error_t** e));
+    MOCK_CONST_METHOD8(xcb_xkb_select_events, xcb_void_cookie_t(xcb_connection_t* c, xcb_xkb_device_spec_t deviceSpec, uint16_t affectWhich, uint16_t clear, uint16_t selectAll, uint16_t affectMap, uint16_t map, const void* details));
 
     // xkb-x11
     MOCK_CONST_METHOD1(xkb_x11_get_core_keyboard_device_id, int32_t(xcb_connection_t* connection));
     MOCK_CONST_METHOD4(xkb_x11_keymap_new_from_device, xkb_keymap*(xkb_context* context, xcb_connection_t* connection, int32_t device_id, xkb_keymap_compile_flags flags));
     MOCK_CONST_METHOD3(xkb_x11_state_new_from_device, xkb_state*(xkb_keymap* keymap, xcb_connection_t* connection, int32_t device_id));
+    MOCK_CONST_METHOD8(xkb_x11_setup_xkb_extension, int(xcb_connection_t* connection, uint16_t major_xkb_version, uint16_t minor_xkb_version, xkb_x11_setup_xkb_extension_flags flags, uint16_t* major_xkb_version_out, uint16_t* minor_xkb_version_out, uint8_t* base_event_out, uint8_t* base_error_out));
 
     // xkbcommon
     MOCK_CONST_METHOD1(xkb_context_new, xkb_context*(xkb_context_flags flags));
     MOCK_CONST_METHOD1(xkb_context_unref, void(xkb_context* context));
     MOCK_CONST_METHOD1(xkb_keymap_unref, void(xkb_keymap* keymap));
     MOCK_CONST_METHOD1(xkb_state_unref, void(xkb_state* state));
-    MOCK_CONST_METHOD2(xkb_state_key_get_one_sym, xkb_keysym_t(xkb_state *state, xkb_keycode_t key));
+    MOCK_CONST_METHOD2(xkb_state_key_get_one_sym, xkb_keysym_t(xkb_state* state, xkb_keycode_t key));
+    MOCK_CONST_METHOD4(xkb_state_key_get_utf8, int(xkb_state* state, xkb_keycode_t key, char* buffer, size_t size));
+    MOCK_CONST_METHOD7(xkb_state_update_mask, xkb_state_component(xkb_state* state, xkb_mod_mask_t depressed_mods, xkb_mod_mask_t latched_mods, xkb_mod_mask_t locked_mods, xkb_layout_index_t depressed_layout, xkb_layout_index_t latched_layout, xkb_layout_index_t locked_layout));
 
 private:
     static inline MockXcbInterface* self = nullptr;

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/XcbBaseTestFixture.cpp

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include "XcbBaseTestFixture.h"
+
+namespace AzFramework
+{
+    void XcbBaseTestFixture::SetUp()
+    {
+        using testing::Return;
+        using testing::_;
+
+        testing::Test::SetUp();
+
+        EXPECT_CALL(m_interface, xcb_connect(_, _))
+            .WillOnce(Return(&m_connection));
+        EXPECT_CALL(m_interface, xcb_disconnect(&m_connection))
+            .Times(1);
+    }
+} // namespace AzFramework

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/XcbBaseTestFixture.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <gtest/gtest.h>
+#include <xcb/xcb.h>
+
+#include "MockXcbInterface.h"
+
+namespace AzFramework
+{
+    // Sets up mock behavior for the xcb library, providing an xcb_connection_t that is returned from a call to xcb_connect
+    class XcbBaseTestFixture
+        : public testing::Test
+    {
+    public:
+        void SetUp() override;
+
+    protected:
+        testing::NiceMock<MockXcbInterface> m_interface;
+        xcb_connection_t m_connection{};
+    };
+} // namespace AzFramework

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/XcbInputDeviceKeyboardTests.cpp

@@ -6,6 +6,7 @@
  *
  */
 
+#include <gmock/gmock-actions.h>
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
 
@@ -13,8 +14,11 @@
 
 #include <AzFramework/XcbApplication.h>
 #include <AzFramework/XcbInputDeviceKeyboard.h>
+#include <AzFramework/Input/Buses/Notifications/InputTextNotificationBus.h>
 #include "MockXcbInterface.h"
+#include "Matchers.h"
 #include "Actions.h"
+#include "XcbBaseTestFixture.h"
 
 template<typename T>
 xcb_generic_event_t MakeEvent(T event)
@@ -24,26 +28,126 @@ xcb_generic_event_t MakeEvent(T event)
 
 namespace AzFramework
 {
-    TEST(XcbInputDeviceKeyboard, InputChannelsUpdateStateFromXcbEvents)
+    // Sets up default behavior for mock keyboard responses to xcb methods
+    class XcbInputDeviceKeyboardTests
+        : public XcbBaseTestFixture
     {
-        using testing::Return;
+        void SetUp() override
+        {
+            using testing::Return;
+            using testing::SetArgPointee;
+            using testing::_;
+
+            XcbBaseTestFixture::SetUp();
+            EXPECT_CALL(m_interface, xkb_context_new(XKB_CONTEXT_NO_FLAGS))
+                .WillOnce(Return(&m_xkbContext));
+            EXPECT_CALL(m_interface, xkb_context_unref(&m_xkbContext))
+                .Times(1);
+
+            EXPECT_CALL(m_interface, xkb_x11_keymap_new_from_device(&m_xkbContext, &m_connection, s_coreDeviceId, XKB_KEYMAP_COMPILE_NO_FLAGS))
+                .WillOnce(Return(&m_xkbKeymap));
+            EXPECT_CALL(m_interface, xkb_keymap_unref(&m_xkbKeymap))
+                .Times(1);
+
+            EXPECT_CALL(m_interface, xkb_x11_state_new_from_device(&m_xkbKeymap, &m_connection, s_coreDeviceId))
+                .WillOnce(Return(&m_xkbState));
+            EXPECT_CALL(m_interface, xkb_state_unref(&m_xkbState))
+                .Times(1);
+
+            ON_CALL(m_interface, xkb_x11_setup_xkb_extension(&m_connection, 1, 0, XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS, _, _, _, _))
+                .WillByDefault(DoAll(
+                    SetArgPointee<6>(s_xkbEventCode), // Set the "base_event_out" argument to the xkbEventCode, the value to identify XKB events
+                    Return(1)
+                ));
+
+            constexpr unsigned int xcbXkbSelectEventsSequence = 342;
+            ON_CALL(m_interface, xcb_xkb_select_events(&m_connection, _, _, _, _, _, _, _))
+                .WillByDefault(Return(xcb_void_cookie_t{/*.sequence = */ xcbXkbSelectEventsSequence}));
+            ON_CALL(m_interface, xcb_request_check(&m_connection, testing::Field(&xcb_void_cookie_t::sequence, testing::Eq(xcbXkbSelectEventsSequence))))
+                .WillByDefault(Return(nullptr)); // indicates success
+
+            ON_CALL(m_interface, xkb_x11_get_core_keyboard_device_id(&m_connection))
+                .WillByDefault(Return(s_coreDeviceId));
+
+            ON_CALL(m_interface, xkb_state_key_get_one_sym(&m_xkbState, s_keycodeForAKey))
+                .WillByDefault(Return(XKB_KEY_a))
+                ;
+            ON_CALL(m_interface, xkb_state_key_get_one_sym(&m_xkbState, s_keycodeForShiftLKey))
+                .WillByDefault(Return(XKB_KEY_Shift_L))
+                ;
+
+            ON_CALL(m_interface, xkb_state_update_mask(&m_xkbState, _, _, _, _, _, _))
+                .WillByDefault(testing::Invoke(this, &XcbInputDeviceKeyboardTests::UpdateStateMask));
+
+            ON_CALL(m_interface, xkb_state_key_get_utf8(&m_xkbState, s_keycodeForAKey, nullptr, 0))
+                .WillByDefault(Return(1));
+            ON_CALL(m_interface, xkb_state_key_get_utf8(m_matchesStateWithoutShift, s_keycodeForAKey, _, 2))
+                .WillByDefault(DoAll(
+                    SetArgPointee<2>('a'),
+                    Return(1)
+                ));
+            ON_CALL(m_interface, xkb_state_key_get_utf8(m_matchesStateWithShift, s_keycodeForAKey, _, 2))
+                .WillByDefault(DoAll(
+                    SetArgPointee<2>('A'),
+                    Return(1)
+                ));
+
+            ON_CALL(m_interface, xkb_state_key_get_utf8(&m_xkbState, s_keycodeForShiftLKey, nullptr, 0))
+                .WillByDefault(Return(0));
+        }
+
+    private:
+        xkb_state_component UpdateStateMask(
+            xkb_state* state,
+            xkb_mod_mask_t depressed_mods,
+            xkb_mod_mask_t latched_mods,
+            xkb_mod_mask_t locked_mods,
+            xkb_layout_index_t depressed_layout,
+            xkb_layout_index_t latched_layout,
+            xkb_layout_index_t locked_layout)
+        {
+            state->m_modifiers = depressed_mods | locked_mods;
+            return {};
+        }
+
+    protected:
+        xkb_context m_xkbContext{};
+        xkb_keymap m_xkbKeymap{};
+        xkb_state m_xkbState{};
+        const testing::Matcher<xkb_state*> m_matchesStateWithoutShift = testing::AllOf(&m_xkbState, testing::Field(&xkb_state::m_modifiers, 0));
+        const testing::Matcher<xkb_state*> m_matchesStateWithShift = testing::AllOf(&m_xkbState, testing::Field(&xkb_state::m_modifiers, XCB_MOD_MASK_SHIFT));
+
+        static constexpr int32_t s_coreDeviceId{1};
+        static constexpr uint8_t s_xkbEventCode{85};
+
+        static constexpr xcb_keycode_t s_keycodeForAKey{38};
+        static constexpr xcb_keycode_t s_keycodeForShiftLKey{50};
+    };
+
+    class InputTextNotificationListener
+        : public InputTextNotificationBus::Handler
+    {
+    public:
+        InputTextNotificationListener()
+        {
+            BusConnect();
+        }
+        MOCK_METHOD2(OnInputTextEvent, void(const AZStd::string& /*textUTF8*/, bool& /*o_hasBeenConsumed*/));
+    };
+
+    TEST_F(XcbInputDeviceKeyboardTests, InputChannelsUpdateStateFromXcbEvents)
+    {
+        using testing::DoAll;
         using testing::Eq;
+        using testing::Return;
+        using testing::SetArgPointee;
         using testing::_;
-        MockXcbInterface interface;
-
-        xcb_connection_t connection{};
-        xkb_context xkbContext{};
-        xkb_keymap xkbKeymap{};
-        xkb_state xkbState{};
-        const int32_t coreDeviceId{1};
-
-        constexpr xcb_keycode_t keycodeForAKey = 38;
 
         const AZStd::array events
         {
             MakeEvent(xcb_key_press_event_t{
                 /*.response_type = */ XCB_KEY_PRESS,
-                /*.detail        = */ keycodeForAKey,
+                /*.detail        = */ s_keycodeForAKey,
                 /*.sequence      = */ 0,
                 /*.time          = */ 0,
                 /*.root          = */ 0,
@@ -59,7 +163,7 @@ namespace AzFramework
             }),
             MakeEvent(xcb_key_release_event_t{
                 /*.response_type = */ XCB_KEY_RELEASE,
-                /*.detail        = */ keycodeForAKey,
+                /*.detail        = */ s_keycodeForAKey,
                 /*.sequence      = */ 0,
                 /*.time          = */ 0,
                 /*.root          = */ 0,
@@ -75,51 +179,20 @@ namespace AzFramework
             }),
         };
 
-        EXPECT_CALL(interface, xcb_connect(_, _))
-            .WillOnce(Return(&connection));
-        EXPECT_CALL(interface, xcb_disconnect(&connection))
-            .Times(1);
-
-        EXPECT_CALL(interface, xkb_context_new(XKB_CONTEXT_NO_FLAGS))
-            .WillOnce(Return(&xkbContext));
-        EXPECT_CALL(interface, xkb_context_unref(&xkbContext))
-            .Times(1);
-
-        EXPECT_CALL(interface, xkb_x11_keymap_new_from_device(&xkbContext, &connection, coreDeviceId, XKB_KEYMAP_COMPILE_NO_FLAGS))
-            .WillOnce(Return(&xkbKeymap));
-        EXPECT_CALL(interface, xkb_keymap_unref(&xkbKeymap))
-            .Times(1);
-
-        EXPECT_CALL(interface, xkb_x11_state_new_from_device(&xkbKeymap, &connection, coreDeviceId))
-            .WillOnce(Return(&xkbState));
-        EXPECT_CALL(interface, xkb_state_unref(&xkbState))
-            .Times(1);
-
-        EXPECT_CALL(interface, xcb_xkb_use_extension(&connection, 1, 0));
-        EXPECT_CALL(interface, xcb_xkb_use_extension_reply(&connection, _, _))
-            .WillOnce(ReturnMalloc<xcb_xkb_use_extension_reply_t>(
-                /* .response_type =*/static_cast<uint8_t>(XCB_XKB_USE_EXTENSION),
-                /* .supported =*/ static_cast<uint8_t>(1))
-            );
-        EXPECT_CALL(interface, xkb_x11_get_core_keyboard_device_id(&connection))
-            .WillRepeatedly(Return(coreDeviceId));
-
         // Set the expectations for the events that will be generated
         // nullptr entries represent when the event queue is empty, and will cause
         // PumpSystemEventLoopUntilEmpty to return
         // event pointers are freed by the calling code, so we malloc new copies
         // here
-        EXPECT_CALL(interface, xcb_poll_for_event(&connection))
+        EXPECT_CALL(m_interface, xcb_poll_for_event(&m_connection))
             .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[0]))
             .WillOnce(Return(nullptr))
             .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[1]))
             .WillOnce(Return(nullptr))
             ;
 
-        EXPECT_CALL(interface, xkb_state_key_get_one_sym(&xkbState, keycodeForAKey))
-            .WillOnce(Return(XKB_KEY_a))
-            .WillOnce(Return(XKB_KEY_a))
-            ;
+        EXPECT_CALL(m_interface, xkb_state_key_get_one_sym(&m_xkbState, s_keycodeForAKey))
+            .Times(2);
 
         Application application;
         application.Start({}, {});
@@ -142,4 +215,219 @@ namespace AzFramework
 
         application.Stop();
     }
+
+    TEST_F(XcbInputDeviceKeyboardTests, TextEnteredFromXcbKeyPressEvents)
+    {
+        using testing::DoAll;
+        using testing::Eq;
+        using testing::Return;
+        using testing::SetArgPointee;
+        using testing::_;
+
+        // press a
+        // release a
+        // press shift
+        // press a
+        // release a
+        // release shift
+        const AZStd::array events
+        {
+            MakeEvent(xcb_key_press_event_t{
+                /*.response_type = */ XCB_KEY_PRESS,
+                /*.detail        = */ s_keycodeForAKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            MakeEvent(xcb_key_release_event_t{
+                /*.response_type = */ XCB_KEY_RELEASE,
+                /*.detail        = */ s_keycodeForAKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            // Pressing a modifier key will generate a key press event followed
+            // by a state notify event
+            MakeEvent(xcb_key_press_event_t{
+                /*.response_type = */ XCB_KEY_PRESS,
+                /*.detail        = */ s_keycodeForShiftLKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            MakeEvent(xcb_xkb_state_notify_event_t{
+                /*.response_type     = */ s_xkbEventCode,
+                /*.xkbType           = */ XCB_XKB_STATE_NOTIFY,
+                /*.sequence          = */ 0,
+                /*.time              = */ 0,
+                /*.deviceID          = */ s_coreDeviceId,
+                /*.mods              = */ XCB_MOD_MASK_SHIFT,
+                /*.baseMods          = */ XCB_MOD_MASK_SHIFT,
+                /*.latchedMods       = */ 0,
+                /*.lockedMods        = */ 0,
+                /*.group             = */ 0,
+                /*.baseGroup         = */ 0,
+                /*.latchedGroup      = */ 0,
+                /*.lockedGroup       = */ 0,
+                /*.compatState       = */ XCB_MOD_MASK_SHIFT,
+                /*.grabMods          = */ XCB_MOD_MASK_SHIFT,
+                /*.compatGrabMods    = */ XCB_MOD_MASK_SHIFT,
+                /*.lookupMods        = */ XCB_MOD_MASK_SHIFT,
+                /*.compatLoockupMods = */ XCB_MOD_MASK_SHIFT,
+                /*.ptrBtnState       = */ 0,
+                /*.changed           = */ 0,
+                /*.keycode           = */ s_keycodeForShiftLKey,
+                /*.eventType         = */ XCB_KEY_PRESS,
+                /*.requestMajor      = */ 0,
+                /*.requestMinor      = */ 0,
+            }),
+            MakeEvent(xcb_key_press_event_t{
+                /*.response_type = */ XCB_KEY_PRESS,
+                /*.detail        = */ s_keycodeForAKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            MakeEvent(xcb_key_release_event_t{
+                /*.response_type = */ XCB_KEY_RELEASE,
+                /*.detail        = */ s_keycodeForAKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            MakeEvent(xcb_key_release_event_t{
+                /*.response_type = */ XCB_KEY_RELEASE,
+                /*.detail        = */ s_keycodeForShiftLKey,
+                /*.sequence      = */ 0,
+                /*.time          = */ 0,
+                /*.root          = */ 0,
+                /*.event         = */ 0,
+                /*.child         = */ 0,
+                /*.root_x        = */ 0,
+                /*.root_y        = */ 0,
+                /*.event_x       = */ 0,
+                /*.event_y       = */ 0,
+                /*.state         = */ 0,
+                /*.same_screen   = */ 0,
+                /*.pad0          = */ 0
+            }),
+            MakeEvent(xcb_xkb_state_notify_event_t{
+                /*.response_type     = */ s_xkbEventCode,
+                /*.xkbType           = */ XCB_XKB_STATE_NOTIFY,
+                /*.sequence          = */ 0,
+                /*.time              = */ 0,
+                /*.deviceID          = */ s_coreDeviceId,
+                /*.mods              = */ 0,
+                /*.baseMods          = */ 0,
+                /*.latchedMods       = */ 0,
+                /*.lockedMods        = */ 0,
+                /*.group             = */ 0,
+                /*.baseGroup         = */ 0,
+                /*.latchedGroup      = */ 0,
+                /*.lockedGroup       = */ 0,
+                /*.compatState       = */ 0,
+                /*.grabMods          = */ 0,
+                /*.compatGrabMods    = */ 0,
+                /*.lookupMods        = */ 0,
+                /*.compatLoockupMods = */ 0,
+                /*.ptrBtnState       = */ 0,
+                /*.changed           = */ 0,
+                /*.keycode           = */ s_keycodeForShiftLKey,
+                /*.eventType         = */ XCB_KEY_RELEASE,
+                /*.requestMajor      = */ 0,
+                /*.requestMinor      = */ 0,
+            }),
+        };
+
+        // Set the expectations for the events that will be generated
+        // nullptr entries represent when the event queue is empty, and will cause
+        // PumpSystemEventLoopUntilEmpty to return
+        // event pointers are freed by the calling code, so we malloc new copies
+        // here
+        EXPECT_CALL(m_interface, xcb_poll_for_event(&m_connection))
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[0])) // press a
+            .WillOnce(Return(nullptr))
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[1])) // release a
+            .WillOnce(Return(nullptr))
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[2])) // press shift
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[3])) // state notify shift is down
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[4])) // press a
+            .WillOnce(Return(nullptr))
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[5])) // release a
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[6])) // release shift
+            .WillOnce(ReturnMalloc<xcb_generic_event_t>(events[7])) // state notify shift is up
+            .WillRepeatedly(Return(nullptr))
+            ;
+
+        EXPECT_CALL(m_interface, xkb_state_key_get_utf8(&m_xkbState, s_keycodeForAKey, nullptr, 0))
+            .Times(2);
+        EXPECT_CALL(m_interface, xkb_state_key_get_utf8(m_matchesStateWithoutShift, s_keycodeForAKey, _, 2))
+            .Times(1);
+        EXPECT_CALL(m_interface, xkb_state_key_get_utf8(m_matchesStateWithShift, s_keycodeForAKey, _, 2))
+            .Times(1);
+
+        EXPECT_CALL(m_interface, xkb_state_key_get_utf8(&m_xkbState, s_keycodeForShiftLKey, nullptr, 0))
+            .Times(1);
+
+        InputTextNotificationListener textListener;
+        EXPECT_CALL(textListener, OnInputTextEvent(StrEq("a"), _)).Times(1);
+        EXPECT_CALL(textListener, OnInputTextEvent(StrEq("A"), _)).Times(1);
+
+        Application application;
+        application.Start({}, {});
+
+        for (int i = 0; i < 4; ++i)
+        {
+            application.PumpSystemEventLoopUntilEmpty();
+            application.TickSystem();
+            application.Tick();
+        }
+
+        application.Stop();
+    }
 } // namespace AzFramework

Code/Framework/AzFramework/Tests/Platform/Common/Xcb/azframework_xcb_tests_files.cmake

@@ -9,9 +9,12 @@
 set(FILES
     Actions.h
     Main.cpp
+    Matchers.h
     MockXcbInterface.cpp
     MockXcbInterface.h
     Printers.cpp
     Printers.h
+    XcbBaseTestFixture.cpp
+    XcbBaseTestFixture.h
     XcbInputDeviceKeyboardTests.cpp
 )

Code/Framework/AzQtComponents/AzQtComponents/Components/Widgets/FileDialog.cpp

@@ -6,10 +6,11 @@
  *
  */
 
+#include <AzQtComponents/AzQtComponents_Traits_Platform.h>
 #include <AzQtComponents/Components/Widgets/FileDialog.h>
 
 #include <QMessageBox>
-#include <QRegExp>
+#include <QRegularExpression>
 
 namespace AzQtComponents
 {
@@ -24,7 +25,12 @@ namespace AzQtComponents
             // Trigger Qt's save filename dialog
             // If filePath isn't empty, it means we are prompting again because the filename was invalid,
             // so pass it instead of the directory so the filename is pre-filled in for the user
-            filePath = QFileDialog::getSaveFileName(parent, caption, (filePath.isEmpty()) ? dir : filePath, filter, selectedFilter, options);
+            QString localSelectedFilter;
+            filePath = QFileDialog::getSaveFileName(parent, caption, (filePath.isEmpty()) ? dir : filePath, filter, &localSelectedFilter, options);
+            if (selectedFilter)
+            {
+                *selectedFilter = localSelectedFilter;
+            }
 
             if (!filePath.isEmpty())
             {
@@ -32,15 +38,39 @@ namespace AzQtComponents
                 QString fileName = fileInfo.fileName();
 
                 // Check if the filename has any invalid characters
-                QRegExp validFileNameRegex("^[a-zA-Z0-9_\\-./]*$");
-                shouldPromptAgain = !validFileNameRegex.exactMatch(fileName);
+                QRegularExpression validFileNameRegex("^[a-zA-Z0-9_\\-./]*$");
+                QRegularExpressionMatch validFileNameMatch = validFileNameRegex.match(fileName);
 
                 // If the filename had invalid characters, then show a warning message and then we will re-prompt the save filename dialog
-                if (shouldPromptAgain)
+                if (!validFileNameMatch.hasMatch())
                 {
                     QMessageBox::warning(parent, QObject::tr("Invalid filename"),
                         QObject::tr("O3DE assets are restricted to alphanumeric characters, hyphens (-), underscores (_), and dots (.)\n\n%1").arg(fileName));
+                    shouldPromptAgain = true;
+                    continue;
                 }
+                else
+                {
+                    shouldPromptAgain = false;
+                }
+#if AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_APPLY_MISSING_EXTENSION
+                // If a filter was selected, then make sure that the resulting filename ends with that extension. On systems that use the default QFileDialog, 
+                // the extension is not guaranteed to be set in the resulting filename
+                if (FileDialog::ApplyMissingExtension(localSelectedFilter, filePath))
+                {
+                    // If an extension had to be applied, then the file dialog did not handle the case of overwriting existing files.
+                    // We need to check that condition before we proceed
+                    QFileInfo updatedFilePath(filePath);
+
+                    if (updatedFilePath.exists())
+                    {
+                        QMessageBox::StandardButton overwriteSelection = QMessageBox::question(parent, 
+                                                                                               QObject::tr("File exists"),
+                                                                                               QObject::tr("%1 exists. Do you want to overwrite the existing file?").arg(updatedFilePath.fileName()));
+                        shouldPromptAgain = (overwriteSelection == QMessageBox::No);
+                    }
+                }
+#endif // AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_APPLY_MISSING_EXTENSION
             }
             else
             {
@@ -51,4 +81,56 @@ namespace AzQtComponents
 
         return filePath;
     }
+
+    bool FileDialog::ApplyMissingExtension(const QString& selectedFilter, QString& filePath)
+    {
+        if (selectedFilter.isEmpty())
+        {
+            return false;
+        }
+
+        // According to the QT documentation for QFileDialog, the selected filter will come in the form
+        // <Filter Name> (<filter pattern1> <filter pattern2> .. <filter patternN> )
+        // 
+        // For example:
+        // "Images (*.gif *.png *.jpg)"
+        // 
+        // Extract the contents of the <filter pattern>(s) inside the parenthesis and split them based on a whitespace or comma
+        const QRegularExpression filterContent(".*\\((?<filters>[^\\)]+)\\)");
+        QRegularExpressionMatch filterContentMatch = filterContent.match(selectedFilter);
+        if (!filterContentMatch.hasMatch())
+        {
+            return false;
+        }
+        QString filterExtensionsString = filterContentMatch.captured("filters");
+        QStringList filterExtensionsFull = filterExtensionsString.split(" ", Qt::SkipEmptyParts);
+        if (filterExtensionsFull.length() <= 0)
+        {
+            return false;
+        }
+
+        // If there are multiple suffixes in the selected filter, then default to the first one if a suffix needs to be appended
+        QString defaultSuffix = filterExtensionsFull[0].mid(1);
+
+        // Iterate through the filter patterns to see if the current filename matches
+        QFileInfo fileInfo(filePath);
+        bool extensionNeeded = true;
+        for (const QString& filterExtensionFull : filterExtensionsFull)
+        {
+            QString wildcardExpression = QRegularExpression::wildcardToRegularExpression(filterExtensionFull);
+            QRegularExpression filterPattern(wildcardExpression, AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_FILTER_CASE_SENSITIVITY);
+            QRegularExpressionMatch filterPatternMatch = filterPattern.match(fileInfo.fileName());
+            if (filterPatternMatch.hasMatch())
+            {
+                // The filename matches one of the filter patterns already, the extension does not need to be added to the filename
+                extensionNeeded = false;
+            }
+        }
+        if (extensionNeeded)
+        {
+            // If the current (if any) suffix does not match, automatically add the default suffix for the selected filter
+            filePath.append(defaultSuffix);
+        }
+        return extensionNeeded;
+    }
 } // namespace AzQtComponents

Code/Framework/AzQtComponents/AzQtComponents/Components/Widgets/FileDialog.h

@@ -24,6 +24,12 @@ namespace AzQtComponents
         static QString GetSaveFileName(QWidget* parent = nullptr, const QString& caption = QString(),
             const QString& dir = QString(), const QString& filter = QString(),
             QString* selectedFilter = nullptr, QFileDialog::Options options = QFileDialog::Options());
+
+        //! Helper method that parses a selected filter from Qt's QFileDialog::getSaveFileName and applies the 
+        //! selected filter's extension to the filePath if it doesnt already have the extension. This is needed
+        //! on platforms that do not have a default file dialog (These platforms uses Qt's custom file dialog which will
+        //! not apply the filter's extension automatically on user entered filenames)
+        static bool ApplyMissingExtension(const QString& selectedFilter, QString& filePath);
     };
 
 } // namespace AzQtComponents

Code/Framework/AzQtComponents/AzQtComponents/Platform/Linux/platform_linux_files.cmake

@@ -12,4 +12,6 @@ set(FILES
     ../../Utilities/QtWindowUtilities_linux.cpp
     ../../Utilities/ScreenGrabber_linux.cpp
     ../../../Platform/Linux/AzQtComponents/Components/StyledDockWidget_Linux.cpp
+    ../../../Platform/Linux/AzQtComponents/AzQtComponents_Traits_Linux.h
+    ../../../Platform/Linux/AzQtComponents/AzQtComponents_Traits_Platform.h
 )

Code/Framework/AzQtComponents/AzQtComponents/Platform/Mac/platform_mac_files.cmake

@@ -12,4 +12,6 @@ set(FILES
     ../../Utilities/QtWindowUtilities_mac.mm
     ../../Utilities/ScreenGrabber_mac.mm
     ../../../Platform/Mac/AzQtComponents/Components/StyledDockWidget_Mac.cpp
+    ../../../Platform/Mac/AzQtComponents/AzQtComponents_Traits_Mac.h
+    ../../../Platform/Mac/AzQtComponents/AzQtComponents_Traits_Platform.h
 )

Code/Framework/AzQtComponents/AzQtComponents/Platform/Windows/platform_windows_files.cmake

@@ -17,4 +17,6 @@ set(FILES
     ../../Components/TitleBarOverdrawScreenHandler_win.h
     ../../Components/TitleBarOverdrawScreenHandler_win.cpp
     ../../../Platform/Windows/AzQtComponents/Components/StyledDockWidget_Windows.cpp
+    ../../../Platform/Windows/AzQtComponents/AzQtComponents_Traits_Windows.h
+    ../../../Platform/Windows/AzQtComponents/AzQtComponents_Traits_Platform.h
 )

Code/Framework/AzQtComponents/AzQtComponents/Tests/FileDialogTests.cpp

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzTest/AzTest.h>
+#include <AzQtComponents/Components/Widgets/FileDialog.h>
+#include <QString>
+
+TEST(AzQtComponents, ApplyMissingExtension_UpdateMissingExtension_Success)
+{
+    const QString textFiler{"Text Files (*.txt)"};
+    QString testPath{"testFile"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_TRUE(result);
+    EXPECT_STRCASEEQ("testFile.txt", testPath.toUtf8().constData());
+}
+
+TEST(AzQtComponents, ApplyMissingExtension_NoUpdateExistingExtension_Success)
+{
+    const QString textFiler{"Text Files (*.txt)"};
+    QString testPath{"testFile.txt"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_FALSE(result);
+    EXPECT_STRCASEEQ("testFile.txt", testPath.toUtf8().constData());
+}
+
+TEST(AzQtComponents, ApplyMissingExtension_UpdateMissingExtensionMultipleExtensionFilter_Success)
+{
+    const QString textFiler{"Image Files (*.jpg *.bmp *.png)"};
+    QString testPath{"testFile"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_TRUE(result);
+    EXPECT_STRCASEEQ("testFile.jpg", testPath.toUtf8().constData());
+}
+
+TEST(AzQtComponents, ApplyMissingExtension_NoUpdateMissingExtensionMultipleExtensionFilter_Success)
+{
+    const QString textFiler{"Image Files (*.jpg *.bmp *.png)"};
+    QString testPath{"testFile.png"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_FALSE(result);
+    EXPECT_STRCASEEQ("testFile.png", testPath.toUtf8().constData());
+}
+
+TEST(AzQtComponents, ApplyMissingExtension_NoUpdateMissingExtensionEmptyFilter_Success)
+{
+    const QString textFiler{""};
+    QString testPath{"testFile"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_FALSE(result);
+    EXPECT_STRCASEEQ("testFile", testPath.toUtf8().constData());
+}
+
+TEST(AzQtComponents, ApplyMissingExtension_NoUpdateMissingExtensionInvalidFilter_Success)
+{
+    const QString textFiler{"Bad Filter!!"};
+    QString testPath{"testFile"};
+    bool result = AzQtComponents::FileDialog::ApplyMissingExtension(textFiler, testPath);
+    EXPECT_FALSE(result);
+    EXPECT_STRCASEEQ("testFile", testPath.toUtf8().constData());
+}

Code/Framework/AzQtComponents/AzQtComponents/azqtcomponents_testing_files.cmake

@@ -9,6 +9,7 @@
 set(FILES
     Tests/AzQtComponentTests.cpp
     Tests/ColorControllerTests.cpp
+    Tests/FileDialogTests.cpp
     Tests/FloatToStringConversionTests.cpp
     Tests/HexParsingTests.cpp
     Tests/StyleSheetCacheTests.cpp

Code/Framework/AzQtComponents/CMakeLists.txt

@@ -10,6 +10,8 @@ if(NOT PAL_TRAIT_BUILD_HOST_TOOLS)
     return()
 endif()
 
+ly_get_list_relative_pal_filename(pal_dir ${CMAKE_CURRENT_LIST_DIR}/Platform/${PAL_PLATFORM_NAME})
+
 ly_add_target(
     NAME AzQtComponents SHARED
     NAMESPACE AZ
@@ -26,6 +28,7 @@ ly_add_target(
             AzQtComponents
         PUBLIC
             .
+            ${pal_dir}
     COMPILE_DEFINITIONS
         PRIVATE
             AZ_QT_COMPONENTS_EXPORT_SYMBOLS
@@ -53,6 +56,7 @@ ly_add_target(
             .
             AzQtComponents
             AzQtComponents/Gallery
+            ${pal_dir}
     BUILD_DEPENDENCIES
         PRIVATE
             3rdParty::Qt::Svg
@@ -86,6 +90,7 @@ if(PAL_TRAIT_BUILD_TESTS_SUPPORTED)
             PRIVATE
                 Tests
                 AzQtComponents
+                ${pal_dir}
         BUILD_DEPENDENCIES
             PRIVATE
                 AZ::AzQtComponents

Code/Framework/AzQtComponents/Platform/Linux/AzQtComponents/AzQtComponents_Traits_Linux.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_APPLY_MISSING_EXTENSION 1
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_FILTER_CASE_SENSITIVITY QRegularExpression::NoPatternOption

Code/Framework/AzQtComponents/Platform/Linux/AzQtComponents/AzQtComponents_Traits_Platform.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzQtComponents/AzQtComponents_Traits_Linux.h>

Code/Framework/AzQtComponents/Platform/Mac/AzQtComponents/AzQtComponents_Traits_Mac.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_APPLY_MISSING_EXTENSION 0
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_FILTER_CASE_SENSITIVITY QRegularExpression::NoPatternOption

Code/Framework/AzQtComponents/Platform/Mac/AzQtComponents/AzQtComponents_Traits_Platform.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzQtComponents/AzQtComponents_Traits_Mac.h>

Code/Framework/AzQtComponents/Platform/Windows/AzQtComponents/AzQtComponents_Traits_Platform.h

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzQtComponents/AzQtComponents_Traits_Windows.h>

Code/Framework/AzQtComponents/Platform/Windows/AzQtComponents/AzQtComponents_Traits_Windows.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_APPLY_MISSING_EXTENSION 0
+#define AZ_TRAIT_AZQTCOMPONENTS_FILE_DIALOG_FILTER_CASE_SENSITIVITY QRegularExpression::CaseInsensitiveOption

Code/Framework/AzToolsFramework/AzToolsFramework/Application/ToolsApplication.cpp

@@ -69,6 +69,7 @@
 #include <AzToolsFramework/UI/EditorEntityUi/EditorEntityUiSystemComponent.h>
 #include <AzToolsFramework/Undo/UndoCacheInterface.h>
 #include <AzToolsFramework/Prefab/PrefabPublicInterface.h>
+#include <Entity/EntityUtilityComponent.h>
 
 #include <QtWidgets/QMessageBox>
 AZ_PUSH_DISABLE_WARNING(4251, "-Wunknown-warning-option") // 4251: 'QFileInfo::d_ptr': class 'QSharedDataPointer<QFileInfoPrivate>' needs to have dll-interface to be used by clients of class 'QFileInfo'
@@ -271,7 +272,8 @@ namespace AzToolsFramework
                 azrtti_typeid<AzToolsFramework::EditorInteractionSystemComponent>(),
                 azrtti_typeid<Components::EditorEntitySearchComponent>(),
                 azrtti_typeid<Components::EditorIntersectorComponent>(),
-                azrtti_typeid<AzToolsFramework::SliceRequestComponent>()
+                azrtti_typeid<AzToolsFramework::SliceRequestComponent>(),
+                azrtti_typeid<AzToolsFramework::EntityUtilityComponent>()
             });
 
         return components;

Code/Framework/AzToolsFramework/AzToolsFramework/AssetEditor/AssetEditorWidget.cpp

@@ -410,7 +410,7 @@ namespace AzToolsFramework
                     filter.append(ext);
                     if (i < n - 1)
                     {
-                        filter.append(", ");
+                        filter.append(" ");
                     }
                 }
                 filter.append(")");

Code/Framework/AzToolsFramework/AzToolsFramework/AzToolsFrameworkModule.cpp

@@ -53,6 +53,7 @@
 #include <AzToolsFramework/Thumbnails/ThumbnailerNullComponent.h>
 #include <AzToolsFramework/AssetBrowser/AssetBrowserComponent.h>
 #include <AzToolsFramework/ViewportSelection/EditorInteractionSystemComponent.h>
+#include <AzToolsFramework/Entity/EntityUtilityComponent.h>
 
 AZ_DEFINE_BUDGET(AzToolsFramework);
 
@@ -71,6 +72,7 @@ namespace AzToolsFramework
             Components::EditorSelectionAccentSystemComponent::CreateDescriptor(),
             EditorEntityContextComponent::CreateDescriptor(),
             EditorEntityFixupComponent::CreateDescriptor(),
+            EntityUtilityComponent::CreateDescriptor(),
             ContainerEntitySystemComponent::CreateDescriptor(),
             FocusModeSystemComponent::CreateDescriptor(),
             SliceMetadataEntityContextComponent::CreateDescriptor(),

Code/Framework/AzToolsFramework/AzToolsFramework/Entity/EntityUtilityComponent.cpp

@@ -0,0 +1,351 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <sstream>
+#include <AzCore/JSON/rapidjson.h>
+#include <AzCore/Serialization/Json/JsonSerialization.h>
+#include <AzCore/Serialization/Json/JsonSerializationSettings.h>
+#include <AzCore/Serialization/Json/JsonUtils.h>
+#include <AzFramework/Entity/EntityContext.h>
+#include <AzFramework/FileFunc/FileFunc.h>
+#include <AzToolsFramework/Entity/EntityUtilityComponent.h>
+#include <Entity/EditorEntityContextBus.h>
+#include <rapidjson/document.h>
+
+namespace AzToolsFramework
+{
+    void ComponentDetails::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+        {
+            serializeContext->Class<ComponentDetails>()
+                ->Field("TypeInfo", &ComponentDetails::m_typeInfo)
+                ->Field("BaseClasses", &ComponentDetails::m_baseClasses);
+
+            serializeContext->RegisterGenericType<AZStd::vector<ComponentDetails>>();
+        }
+
+        if (AZ::BehaviorContext* behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+        {
+            behaviorContext->Class<ComponentDetails>()
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Module, "entity")
+                ->Attribute(AZ::Script::Attributes::ExcludeFrom, AZ::Script::Attributes::ExcludeFlags::All)
+                ->Property("TypeInfo", BehaviorValueProperty(&ComponentDetails::m_typeInfo))
+                ->Property("BaseClasses", BehaviorValueProperty(&ComponentDetails::m_baseClasses))
+                ->Method("__repr__", [](const ComponentDetails& obj)
+                {
+                    std::ostringstream result;
+                    bool first = true;
+
+                    for (const auto& baseClass : obj.m_baseClasses)
+                    {
+                        if (!first)
+                        {
+                            result << ", ";
+                        }
+
+                        first = false;
+                        result << baseClass.c_str();
+                    }
+                    
+                    return AZStd::string::format("%s, Base Classes: <%s>", obj.m_typeInfo.c_str(), result.str().c_str());
+                })
+                ->Attribute(AZ::Script::Attributes::Operator, AZ::Script::Attributes::OperatorType::ToString);
+        }
+    }
+
+    AZ::EntityId EntityUtilityComponent::CreateEditorReadyEntity(const AZStd::string& entityName)
+    {
+        auto* newEntity = m_entityContext->CreateEntity(entityName.c_str());
+
+        if (!newEntity)
+        {
+            AZ_Error("EditorEntityUtility", false, "Failed to create new entity %s", entityName.c_str());
+            return AZ::EntityId();
+        }
+
+        AzToolsFramework::EditorEntityContextRequestBus::Broadcast(
+            &AzToolsFramework::EditorEntityContextRequestBus::Events::AddRequiredComponents, *newEntity);
+
+        newEntity->Init();
+        auto newEntityId = newEntity->GetId();
+
+        m_createdEntities.emplace_back(newEntityId);
+
+        return newEntityId;
+    }
+
+    AZ::TypeId GetComponentTypeIdFromName(const AZStd::string& typeName)
+    {
+        // Try to create a TypeId first.  We won't show any warnings if this fails as the input might be a class name instead
+        AZ::TypeId typeId = AZ::TypeId::CreateStringPermissive(typeName.data());
+
+        // If the typeId is null, try a lookup by class name
+        if (typeId.IsNull())
+        {
+            AZ::SerializeContext* serializeContext = nullptr;
+            AZ::ComponentApplicationBus::BroadcastResult(serializeContext, &AZ::ComponentApplicationBus::Events::GetSerializeContext);
+
+            auto typeNameCrc = AZ::Crc32(typeName.data());
+            auto typeUuidList = serializeContext->FindClassId(typeNameCrc);
+
+            // TypeId is invalid or class name is invalid
+            if (typeUuidList.empty())
+            {
+                AZ_Error("EntityUtilityComponent", false, "Provided type %s is either an invalid TypeId or does not match any class names", typeName.c_str());
+                return AZ::TypeId::CreateNull();
+            }
+
+            typeId = typeUuidList[0];
+        }
+
+        return typeId;
+    }
+
+    AZ::Component* FindComponentHelper(AZ::EntityId entityId, const AZ::TypeId& typeId, AZ::ComponentId componentId, bool createComponent = false)
+    {
+        AZ::Entity* entity = nullptr;
+        AZ::ComponentApplicationBus::BroadcastResult(entity, &AZ::ComponentApplicationBus::Events::FindEntity, entityId);
+
+        if (!entity)
+        {
+            AZ_Error("EntityUtilityComponent", false, "Invalid entityId %s", entityId.ToString().c_str());
+            return nullptr;
+        }
+
+        AZ::Component* component = nullptr;
+        if (componentId != AZ::InvalidComponentId)
+        {
+            component = entity->FindComponent(componentId);
+        }
+        else
+        {
+            component = entity->FindComponent(typeId);
+        }
+
+        if (!component && createComponent)
+        {
+            component = entity->CreateComponent(typeId);
+        }
+
+        if (!component)
+        {
+            AZ_Error(
+                "EntityUtilityComponent", false, "Failed to find component (%s) on entity %s (%s)",
+                componentId != AZ::InvalidComponentId ? AZStd::to_string(componentId).c_str()
+                                                      : typeId.ToString<AZStd::string>().c_str(),
+                entityId.ToString().c_str(),
+                entity->GetName().c_str());
+            return nullptr;
+        }
+
+        return component;
+    }
+
+    AzFramework::BehaviorComponentId EntityUtilityComponent::GetOrAddComponentByTypeName(AZ::EntityId entityId, const AZStd::string& typeName)
+    {
+        AZ::TypeId typeId = GetComponentTypeIdFromName(typeName);
+
+        if (typeId.IsNull())
+        {
+            return AzFramework::BehaviorComponentId(AZ::InvalidComponentId);
+        }
+
+        AZ::Component* component = FindComponentHelper(entityId, typeId, AZ::InvalidComponentId, true);
+
+        return component ? AzFramework::BehaviorComponentId(component->GetId()) : 
+            AzFramework::BehaviorComponentId(AZ::InvalidComponentId);
+    }
+
+    bool EntityUtilityComponent::UpdateComponentForEntity(AZ::EntityId entityId, AzFramework::BehaviorComponentId componentId, const AZStd::string& json)
+    {
+        if (!componentId.IsValid())
+        {
+            AZ_Error("EntityUtilityComponent", false, "Invalid componentId passed to UpdateComponentForEntity");
+            return false;
+        }
+
+        AZ::Component* component = FindComponentHelper(entityId, AZ::TypeId::CreateNull(), componentId);
+
+        if (!component)
+        {
+            return false;
+        }
+
+        using namespace AZ::JsonSerializationResult;
+
+        AZ::JsonDeserializerSettings settings = AZ::JsonDeserializerSettings{};
+        settings.m_reporting = []([[maybe_unused]] AZStd::string_view message, ResultCode result, AZStd::string_view) -> auto
+        {
+            if (result.GetProcessing() == Processing::Halted)
+            {
+                AZ_Error("EntityUtilityComponent", false, "JSON %s\n", message.data());
+            }
+            else if (result.GetOutcome() > Outcomes::PartialDefaults)
+            {
+                AZ_Warning("EntityUtilityComponent", false, "JSON %s\n", message.data());
+            }
+            return result;
+        };
+        
+        rapidjson::Document doc;
+        doc.Parse<rapidjson::kParseCommentsFlag>(json.data(), json.size());
+        ResultCode resultCode = AZ::JsonSerialization::Load(*component, doc, settings);
+
+        return resultCode.GetProcessing() != Processing::Halted;
+    }
+
+    AZStd::string EntityUtilityComponent::GetComponentDefaultJson(const AZStd::string& typeName)
+    {
+        AZ::TypeId typeId = GetComponentTypeIdFromName(typeName);
+
+        if (typeId.IsNull())
+        {
+            // GetComponentTypeIdFromName already does error handling
+            return "";
+        }
+
+        AZ::SerializeContext* serializeContext = nullptr;
+        AZ::ComponentApplicationBus::BroadcastResult(serializeContext, &AZ::ComponentApplicationBus::Events::GetSerializeContext);
+
+        const AZ::SerializeContext::ClassData* classData = serializeContext->FindClassData(typeId);
+
+        if (!classData)
+        {
+            AZ_Error("EntityUtilityComponent", false, "Failed to find ClassData for typeId %s (%s)", typeId.ToString<AZStd::string>().c_str(), typeName.c_str());
+            return "";
+        }
+
+        void* component = classData->m_factory->Create("Component");
+        rapidjson::Document document;
+        AZ::JsonSerializerSettings settings;
+        settings.m_keepDefaults = true;
+
+        auto resultCode = AZ::JsonSerialization::Store(document, document.GetAllocator(), component, nullptr, typeId, settings);
+
+        // Clean up the allocated component ASAP, we don't need it anymore
+        classData->m_factory->Destroy(component);
+
+        if (resultCode.GetProcessing() == AZ::JsonSerializationResult::Processing::Halted)
+        {
+            AZ_Error("EntityUtilityComponent", false, "Failed to serialize component to json (%s): %s",
+                typeName.c_str(), resultCode.ToString(typeName).c_str())
+            return "";
+        }
+
+        AZStd::string jsonString;
+        AZ::Outcome<void, AZStd::string> outcome = AZ::JsonSerializationUtils::WriteJsonString(document, jsonString);
+
+        if (!outcome.IsSuccess())
+        {
+            AZ_Error("EntityUtilityComponent", false, "Failed to write component json to string: %s", outcome.GetError().c_str());
+            return "";
+        }
+
+        return jsonString;
+    }
+
+    AZStd::vector<ComponentDetails> EntityUtilityComponent::FindMatchingComponents(const AZStd::string& searchTerm)
+    {
+        AZ::SerializeContext* serializeContext = nullptr;
+        AZ::ComponentApplicationBus::BroadcastResult(serializeContext, &AZ::ComponentApplicationBus::Events::GetSerializeContext);
+
+        if (m_typeInfo.empty())
+        {
+            serializeContext->EnumerateDerived<AZ::Component>(
+                [this, serializeContext](const AZ::SerializeContext::ClassData* classData, const AZ::Uuid& /*typeId*/)
+                {
+                    auto& typeInfo = m_typeInfo.emplace_back(classData->m_typeId, classData->m_name, AZStd::vector<AZStd::string>{});
+
+                    serializeContext->EnumerateBase(
+                        [&typeInfo](const AZ::SerializeContext::ClassData* classData, const AZ::Uuid&)
+                        {
+                            if (classData)
+                            {
+                                AZStd::get<2>(typeInfo).emplace_back(classData->m_name);
+                            }
+                            return true;
+                        },
+                        classData->m_typeId);
+                    
+                    return true;
+                });
+        }
+        
+        AZStd::vector<ComponentDetails> matches;
+
+        for (const auto& [typeId, typeName, baseClasses] : m_typeInfo)
+        {
+            if (AZStd::wildcard_match(searchTerm, typeName))
+            {
+                ComponentDetails details;
+                details.m_typeInfo = AZStd::string::format("%s %s", typeId.ToString<AZStd::string>().c_str(), typeName.c_str());
+                details.m_baseClasses = baseClasses;
+                
+                matches.emplace_back(AZStd::move(details));
+            }
+        }
+
+        return matches;
+    }
+
+    void EntityUtilityComponent::ResetEntityContext()
+    {
+        for (AZ::EntityId entityId : m_createdEntities)
+        {
+            m_entityContext->DestroyEntityById(entityId);
+        }
+
+        m_createdEntities.clear();
+        m_entityContext->ResetContext();
+    }
+
+    void EntityUtilityComponent::Reflect(AZ::ReflectContext* context)
+    {
+        ComponentDetails::Reflect(context);
+
+        if (auto* serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+        {
+            serializeContext->Class<EntityUtilityComponent, AZ::Component>();
+        }
+
+        if (auto* behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+        {
+            behaviorContext->ConstantProperty("InvalidComponentId", BehaviorConstant(AZ::InvalidComponentId))
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Category, "Entity")
+                ->Attribute(AZ::Script::Attributes::Module, "entity");
+
+            behaviorContext->EBus<EntityUtilityBus>("EntityUtilityBus")
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::ExcludeFrom, AZ::Script::Attributes::ExcludeFlags::All)
+                ->Attribute(AZ::Script::Attributes::Category, "Entity")
+                ->Attribute(AZ::Script::Attributes::Module, "entity")
+                ->Event("CreateEditorReadyEntity", &EntityUtilityBus::Events::CreateEditorReadyEntity)
+                ->Event("GetOrAddComponentByTypeName", &EntityUtilityBus::Events::GetOrAddComponentByTypeName)
+                ->Event("UpdateComponentForEntity", &EntityUtilityBus::Events::UpdateComponentForEntity)
+                ->Event("FindMatchingComponents", &EntityUtilityBus::Events::FindMatchingComponents)
+                ->Event("GetComponentDefaultJson", &EntityUtilityBus::Events::GetComponentDefaultJson)
+            ;
+        }
+    }
+
+    void EntityUtilityComponent::Activate()
+    {
+        m_entityContext = AZStd::make_unique<AzFramework::EntityContext>(UtilityEntityContextId);
+        m_entityContext->InitContext();
+        EntityUtilityBus::Handler::BusConnect();
+    }
+
+    void EntityUtilityComponent::Deactivate()
+    {
+        EntityUtilityBus::Handler::BusDisconnect();
+        m_entityContext = nullptr;
+    }
+}

Code/Framework/AzToolsFramework/AzToolsFramework/Entity/EntityUtilityComponent.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzCore/Component/Component.h>
+#include <AzCore/Component/Entity.h>
+#include <AzCore/Serialization/SerializeContext.h>
+#include <AzToolsFramework/ToolsComponents/EditorComponentBase.h>
+#include <AzToolsFramework/ToolsComponents/EditorDisabledCompositionBus.h>
+#include <AzToolsFramework/ToolsComponents/EditorPendingCompositionBus.h>
+#include <AzToolsFramework/API/EntityCompositionRequestBus.h>
+#include <AzCore/Component/ComponentApplication.h>
+#include <AzFramework/Entity/BehaviorEntity.h>
+
+namespace AzToolsFramework
+{
+    struct ComponentDetails
+    {
+        AZ_TYPE_INFO(AzToolsFramework::ComponentDetails, "{107D8379-4AD4-4547-BEE1-184B120F23E9}");
+
+        static void Reflect(AZ::ReflectContext* context);
+
+        AZStd::string m_typeInfo;
+        AZStd::vector<AZStd::string> m_baseClasses;
+    };
+
+    // This ebus is intended to provide behavior-context friendly APIs to create and manage entities
+    struct EntityUtilityTraits : AZ::EBusTraits
+    {
+        AZ_RTTI(AzToolsFramework::EntityUtilityTraits, "{A6305CAE-C825-43F9-A44D-E503910912AF}");
+
+        virtual ~EntityUtilityTraits() = default;
+
+        static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+        static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
+
+        // Creates an entity with the default editor components attached and initializes the entity
+        virtual AZ::EntityId CreateEditorReadyEntity(const AZStd::string& entityName) = 0;
+
+        virtual AzFramework::BehaviorComponentId GetOrAddComponentByTypeName(AZ::EntityId entity, const AZStd::string& typeName) = 0;
+
+        virtual bool UpdateComponentForEntity(AZ::EntityId entity, AzFramework::BehaviorComponentId component, const AZStd::string& json) = 0;
+
+        // Gets a JSON string containing describing the default serialization state of the specified component
+        virtual AZStd::string GetComponentDefaultJson(const AZStd::string& typeName) = 0;
+
+        // Returns a list of matching component type names.  Supports wildcard search terms
+        virtual AZStd::vector<ComponentDetails> FindMatchingComponents(const AZStd::string& searchTerm) = 0;
+
+        virtual void ResetEntityContext() = 0;
+    };
+
+    using EntityUtilityBus = AZ::EBus<EntityUtilityTraits>;
+
+    struct EntityUtilityComponent : AZ::Component
+        , EntityUtilityBus::Handler
+    {
+        inline const static AZ::Uuid UtilityEntityContextId = AZ::Uuid("{9C277B88-E79E-4F8A-BAFF-A4C175BD565F}");
+
+        AZ_COMPONENT(EntityUtilityComponent, "{47205907-A0EA-4FFF-A620-04D20C04A379}");
+
+        AZ::EntityId CreateEditorReadyEntity(const AZStd::string& entityName) override;
+        AzFramework::BehaviorComponentId GetOrAddComponentByTypeName(AZ::EntityId entity, const AZStd::string& typeName) override;
+        bool UpdateComponentForEntity(AZ::EntityId entity, AzFramework::BehaviorComponentId component, const AZStd::string& json) override;
+        AZStd::string GetComponentDefaultJson(const AZStd::string& typeName) override;
+        AZStd::vector<ComponentDetails> FindMatchingComponents(const AZStd::string& searchTerm) override;
+        void ResetEntityContext() override;
+
+        static void Reflect(AZ::ReflectContext* context);
+
+    protected:
+        void Activate() override;
+        void Deactivate() override;
+
+        // Our own entity context.  This API is intended mostly for use in Asset Builders where there is no editor context
+        // Additionally, an entity context is needed when using the Behavior Entity class
+        AZStd::unique_ptr<AzFramework::EntityContext> m_entityContext;
+
+        // TypeId, TypeName, Vector<BaseClassName>
+        AZStd::vector<AZStd::tuple<AZ::TypeId, AZStd::string, AZStd::vector<AZStd::string>>> m_typeInfo;
+
+        // Keep track of the entities we create so they can be reset
+        AZStd::vector<AZ::EntityId> m_createdEntities;
+    };
+}; // namespace AzToolsFramework

Code/Framework/AzToolsFramework/AzToolsFramework/FocusMode/FocusModeInterface.h

@@ -10,6 +10,7 @@
 
 #include <AzCore/Component/EntityId.h>
 #include <AzCore/Interface/Interface.h>
+#include <AzCore/Component/Entity.h>
 #include <AzCore/Serialization/SerializeContext.h>
 
 #include <AzFramework/Entity/EntityContextBus.h>

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabDomUtils.cpp

@@ -224,6 +224,7 @@ namespace AzToolsFramework
 
                     return false;
                 }
+
                 AZ::Data::SerializedAssetTracker* assetTracker = settings.m_metadata.Find<AZ::Data::SerializedAssetTracker>();
 
                 referencedAssets = AZStd::move(assetTracker->GetTrackedAssets());
@@ -245,6 +246,30 @@ namespace AzToolsFramework
                     entityIdMapper.SetEntityIdGenerationApproach(InstanceEntityIdMapper::EntityIdGenerationApproach::Random);
                 }
 
+                // some assets may come in from the JSON serialzier with no AssetID, but have an asset hint
+                // this attempts to fix up the assets using the assetHint field
+                auto fixUpInvalidAssets = [](AZ::Data::Asset<AZ::Data::AssetData>& asset)
+                {
+                    if (!asset.GetId().IsValid() && !asset.GetHint().empty())
+                    {
+                        AZ::Data::AssetId assetId;
+                        AZ::Data::AssetCatalogRequestBus::BroadcastResult(
+                            assetId,
+                            &AZ::Data::AssetCatalogRequestBus::Events::GetAssetIdByPath,
+                            asset.GetHint().c_str(),
+                            AZ::Data::s_invalidAssetType,
+                            false);
+
+                        if (assetId.IsValid())
+                        {
+                            asset.Create(assetId, true);
+                        }
+                    }
+                };
+
+                auto tracker = AZ::Data::SerializedAssetTracker{};
+                tracker.SetAssetFixUp(fixUpInvalidAssets);
+
                 AZ::JsonDeserializerSettings settings;
                 // The InstanceEntityIdMapper is registered twice because it's used in several places during deserialization where one is
                 // specific for the InstanceEntityIdMapper and once for the generic JsonEntityIdMapper. Because the Json Serializer's meta
@@ -252,16 +277,17 @@ namespace AzToolsFramework
                 settings.m_metadata.Add(static_cast<AZ::JsonEntityIdSerializer::JsonEntityIdMapper*>(&entityIdMapper));
                 settings.m_metadata.Add(&entityIdMapper);
                 settings.m_metadata.Create<InstanceEntityScrubber>(newlyAddedEntities);
+                settings.m_metadata.Add(tracker);
 
                 AZStd::string scratchBuffer;
                 auto issueReportingCallback = [&scratchBuffer](
-                                                  AZStd::string_view message, AZ::JsonSerializationResult::ResultCode result,
-                                                  AZStd::string_view path) -> AZ::JsonSerializationResult::ResultCode
+                    AZStd::string_view message, AZ::JsonSerializationResult::ResultCode result,
+                    AZStd::string_view path) -> AZ::JsonSerializationResult::ResultCode
                 {
                     return Internal::JsonIssueReporter(scratchBuffer, message, result, path);
                 };
                 settings.m_reporting = AZStd::move(issueReportingCallback);
-                
+
                 AZ::JsonSerializationResult::ResultCode result = AZ::JsonSerialization::Load(instance, prefabDom, settings);
 
                 AZ::Data::AssetManager::Instance().ResumeAssetRelease();

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabLoader.cpp

@@ -50,17 +50,19 @@ namespace AzToolsFramework
 
             auto settingsRegistry = AZ::SettingsRegistry::Get();
             AZ_Assert(settingsRegistry, "Settings registry is not set");
-            
+
             [[maybe_unused]] bool result =
                 settingsRegistry->Get(m_projectPathWithOsSeparator.Native(), AZ::SettingsRegistryMergeUtils::FilePathKey_ProjectPath);
             AZ_Warning("Prefab", result, "Couldn't retrieve project root path");
             m_projectPathWithSlashSeparator = AZ::IO::Path(m_projectPathWithOsSeparator.Native(), '/').MakePreferred();
 
             AZ::Interface<PrefabLoaderInterface>::Register(this);
+            m_scriptingPrefabLoader.Connect(this);
         }
 
         void PrefabLoader::UnregisterPrefabLoaderInterface()
         {
+            m_scriptingPrefabLoader.Disconnect();
             AZ::Interface<PrefabLoaderInterface>::Unregister(this);
         }
 
@@ -568,7 +570,7 @@ namespace AzToolsFramework
                 (pathStr.find_first_of(AZ_FILESYSTEM_INVALID_CHARACTERS) == AZStd::string::npos) &&
                 (pathStr.back() != '\\' && pathStr.back() != '/');
         }
-
+        
         AZ::IO::Path PrefabLoader::GetFullPath(AZ::IO::PathView path)
         {
             AZ::IO::Path pathWithOSSeparator = AZ::IO::Path(path).MakePreferred();
@@ -596,26 +598,38 @@ namespace AzToolsFramework
             {
                 // The asset system provided us with a valid root folder and relative path, so return it.
                 fullPath = AZ::IO::Path(rootFolder) / assetInfo.m_relativePath;
+                return fullPath;
             }
             else
             {
-                // If for some reason the Asset system couldn't provide a relative path, provide some fallback logic.
-
-                // Check to see if the AssetProcessor is ready.  If it *is* and we didn't get a path, print an error then follow
-                // the fallback logic.  If it's *not* ready, we're probably either extremely early in a tool startup flow or inside
-                // a unit test, so just execute the fallback logic without an error.
-                [[maybe_unused]] bool assetProcessorReady = false;
-                AzFramework::AssetSystemRequestBus::BroadcastResult(
-                    assetProcessorReady, &AzFramework::AssetSystemRequestBus::Events::AssetProcessorIsReady);
-
-                AZ_Error(
-                    "Prefab", !assetProcessorReady, "Full source path for '%.*s' could not be determined. Using fallback logic.",
-                    AZ_STRING_ARG(path.Native()));
-
-                // If a relative path was passed in, make it relative to the project root.
-                fullPath = AZ::IO::Path(m_projectPathWithOsSeparator).Append(pathWithOSSeparator);
+                // attempt to find the absolute from the Cache folder
+                AZStd::string assetRootFolder;
+                if (auto settingsRegistry = AZ::SettingsRegistry::Get(); settingsRegistry != nullptr)
+                {
+                    settingsRegistry->Get(assetRootFolder, AZ::SettingsRegistryMergeUtils::FilePathKey_CacheRootFolder);
+                }
+                fullPath = AZ::IO::Path(assetRootFolder) / path;
+                if (fullPath.IsAbsolute() && AZ::IO::SystemFile::Exists(fullPath.c_str()))
+                {
+                    return fullPath;
+                }
             }
 
+            // If for some reason the Asset system couldn't provide a relative path, provide some fallback logic.
+
+            // Check to see if the AssetProcessor is ready.  If it *is* and we didn't get a path, print an error then follow
+            // the fallback logic.  If it's *not* ready, we're probably either extremely early in a tool startup flow or inside
+            // a unit test, so just execute the fallback logic without an error.
+            [[maybe_unused]] bool assetProcessorReady = false;
+            AzFramework::AssetSystemRequestBus::BroadcastResult(
+                assetProcessorReady, &AzFramework::AssetSystemRequestBus::Events::AssetProcessorIsReady);
+
+            AZ_Error(
+                "Prefab", !assetProcessorReady, "Full source path for '%.*s' could not be determined. Using fallback logic.",
+                AZ_STRING_ARG(path.Native()));
+
+            // If a relative path was passed in, make it relative to the project root.
+            fullPath = AZ::IO::Path(m_projectPathWithOsSeparator).Append(pathWithOSSeparator);
             return fullPath;
         }
 

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabLoader.h

@@ -15,6 +15,7 @@
 #include <AzCore/std/containers/unordered_set.h>
 #include <AzCore/std/string/string.h>
 #include <AzToolsFramework/Prefab/PrefabDomTypes.h>
+#include <Prefab/ScriptingPrefabLoader.h>
 
 namespace AZ
 {
@@ -114,6 +115,7 @@ namespace AzToolsFramework
             void SetSaveAllPrefabsPreference(SaveAllPrefabsPreference saveAllPrefabsPreference) override;
 
         private:
+
             /**
              * Copies the template dom provided and manipulates it into the proper format to be saved to disk.
              * @param templateRef The template whose dom we want to transform into the proper format to be saved to disk.
@@ -177,6 +179,7 @@ namespace AzToolsFramework
             AZStd::optional<AZStd::pair<PrefabDom, AZ::IO::Path>> StoreTemplateIntoFileFormat(TemplateId templateId);
 
             PrefabSystemComponentInterface* m_prefabSystemComponentInterface = nullptr;
+            ScriptingPrefabLoader m_scriptingPrefabLoader;
             AZ::IO::Path m_projectPathWithOsSeparator;
             AZ::IO::Path m_projectPathWithSlashSeparator;
         };

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabLoaderInterface.h

@@ -99,7 +99,6 @@ namespace AzToolsFramework
             // Generates a new path
             static AZ::IO::Path GeneratePath();
         };
-
     } // namespace Prefab
 } // namespace AzToolsFramework
 

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabLoaderScriptingBus.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/Interface/Interface.h>
+#include <AzCore/IO/Path/Path.h>
+#include <AzCore/Serialization/SerializeContext.h>
+#include <AzToolsFramework/Prefab/PrefabIdTypes.h>
+#include <AzCore/EBus/EBus.h>
+
+namespace AzToolsFramework
+{
+    namespace Prefab
+    {
+        // Ebus for script-friendly APIs for the prefab loader
+        struct PrefabLoaderScriptingTraits : AZ::EBusTraits
+        {
+            AZ_TYPE_INFO(PrefabLoaderScriptingTraits, "{C344B7D8-8299-48C9-8450-26E1332EA011}");
+
+            virtual ~PrefabLoaderScriptingTraits() = default;
+
+            static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+            static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
+
+            /**
+             * Saves a Prefab Template into the provided output string.
+             * Converts Prefab Template form into .prefab form by collapsing nested Template info
+             * into a source path and patches.
+             * @param templateId Id of the template to be saved
+             * @return Will contain the serialized template json on success
+             */
+            virtual AZ::Outcome<AZStd::string, void> SaveTemplateToString(TemplateId templateId) = 0;
+        };
+
+        using PrefabLoaderScriptingBus = AZ::EBus<PrefabLoaderScriptingTraits>;
+
+    } // namespace Prefab
+} // namespace AzToolsFramework
+

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemComponent.cpp

@@ -10,6 +10,7 @@
 
 #include <AzCore/Component/Entity.h>
 #include <AzCore/IO/Path/Path.h>
+#include <AzCore/RTTI/BehaviorContext.h>
 #include <AzCore/Serialization/Json/JsonSerialization.h>
 #include <AzCore/Serialization/Json/RegistrationContext.h>
 #include <AzToolsFramework/Prefab/Instance/InstanceEntityIdMapper.h>
@@ -36,12 +37,14 @@ namespace AzToolsFramework
             m_instanceToTemplatePropagator.RegisterInstanceToTemplateInterface();
             m_prefabPublicHandler.RegisterPrefabPublicHandlerInterface();
             m_prefabPublicRequestHandler.Connect();
+            m_prefabSystemScriptingHandler.Connect(this);
             AZ::SystemTickBus::Handler::BusConnect();
         }
 
         void PrefabSystemComponent::Deactivate()
         {
             AZ::SystemTickBus::Handler::BusDisconnect();
+            m_prefabSystemScriptingHandler.Disconnect();
             m_prefabPublicRequestHandler.Disconnect();
             m_prefabPublicHandler.UnregisterPrefabPublicHandlerInterface();
             m_instanceToTemplatePropagator.UnregisterInstanceToTemplateInterface();
@@ -58,13 +61,24 @@ namespace AzToolsFramework
             AzToolsFramework::Prefab::PrefabConversionUtils::EditorInfoRemover::Reflect(context);
             PrefabPublicRequestHandler::Reflect(context);
             PrefabLoader::Reflect(context);
+            PrefabSystemScriptingHandler::Reflect(context);
 
-            AZ::SerializeContext* serialize = azrtti_cast<AZ::SerializeContext*>(context);
-            if (serialize)
+            if (AZ::SerializeContext* serialize = azrtti_cast<AZ::SerializeContext*>(context))
             {
                 serialize->Class<PrefabSystemComponent, AZ::Component>()->Version(1);
             }
 
+            if (AZ::BehaviorContext* behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+            {
+
+                behaviorContext->EBus<PrefabLoaderScriptingBus>("PrefabLoaderScriptingBus")
+                    ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                    ->Attribute(AZ::Script::Attributes::Module, "prefab")
+                    ->Attribute(AZ::Script::Attributes::Category, "Prefab")
+                    ->Event("SaveTemplateToString", &PrefabLoaderScriptingBus::Events::SaveTemplateToString);
+                ;
+            }
+
             AZ::JsonRegistrationContext* jsonRegistration = azrtti_cast<AZ::JsonRegistrationContext*>(context);
             if (jsonRegistration)
             {
@@ -145,7 +159,7 @@ namespace AzToolsFramework
                 newInstance->SetTemplateId(newTemplateId);
             }
         }
-
+        
         void PrefabSystemComponent::PropagateTemplateChanges(TemplateId templateId, bool immediate, InstanceOptionalReference instanceToExclude)
         {
             UpdatePrefabInstances(templateId, immediate, instanceToExclude);

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemComponent.h

@@ -27,6 +27,7 @@
 #include <AzToolsFramework/Prefab/PrefabPublicRequestHandler.h>
 #include <AzToolsFramework/Prefab/PrefabSystemComponentInterface.h>
 #include <AzToolsFramework/Prefab/Template/Template.h>
+#include <Prefab/PrefabSystemScriptingHandler.h>
 
 namespace AZ
 {
@@ -219,7 +220,7 @@ namespace AzToolsFramework
                 const AZStd::vector<AZ::Entity*>& entities, AZStd::vector<AZStd::unique_ptr<Instance>>&& instancesToConsume,
                 AZ::IO::PathView filePath, AZStd::unique_ptr<AZ::Entity> containerEntity = nullptr,
                 InstanceOptionalReference parent = AZStd::nullopt, bool shouldCreateLinks = true) override;
-
+            
             PrefabDom& FindTemplateDom(TemplateId templateId) override;
 
             /**
@@ -244,7 +245,7 @@ namespace AzToolsFramework
 
         private:
             AZ_DISABLE_COPY_MOVE(PrefabSystemComponent);
-
+            
             /**
             * Builds a new Prefab Template out of entities and instances and returns the first instance comprised of
             * these entities and instances.
@@ -412,6 +413,8 @@ namespace AzToolsFramework
 
             // Handler of the public Prefab requests.
             PrefabPublicRequestHandler m_prefabPublicRequestHandler;
+
+            PrefabSystemScriptingHandler m_prefabSystemScriptingHandler;
         };
     } // namespace Prefab
 } // namespace AzToolsFramework

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemComponentInterface.h

@@ -78,8 +78,7 @@ namespace AzToolsFramework
                 AZStd::unique_ptr<AZ::Entity> containerEntity = nullptr, InstanceOptionalReference parent = AZStd::nullopt,
                 bool shouldCreateLinks = true) = 0;
         };
-
-
+        
     } // namespace Prefab
 } // namespace AzToolsFramework
 

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemScriptingBus.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/Interface/Interface.h>
+#include <AzToolsFramework/Prefab/Instance/Instance.h>
+#include <AzToolsFramework/Prefab/Link/Link.h>
+#include <AzToolsFramework/Prefab/PrefabIdTypes.h>
+#include <AzToolsFramework/Prefab/Template/Template.h>
+#include <AzCore/std/smart_ptr/unique_ptr.h>
+#include <AzCore/EBus/EBus.h>
+
+namespace AzToolsFramework
+{
+    namespace Prefab
+    {
+        // Bus that exposes a script-friendly interface to the PrefabSystemComponent
+        struct PrefabSystemScriptingEbusTraits : AZ::EBusTraits
+        {
+            using MutexType = AZ::NullMutex;
+            static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
+            static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+
+            virtual TemplateId CreatePrefabTemplate(
+                const AZStd::vector<AZ::EntityId>& entityIds, const AZStd::string& filePath) = 0;
+        };
+        
+        using PrefabSystemScriptingBus = AZ::EBus<PrefabSystemScriptingEbusTraits>;
+        
+    } // namespace Prefab
+} // namespace AzToolsFramework
+

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemScriptingHandler.cpp

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzCore/Component/ComponentApplicationBus.h>
+#include <AzCore/RTTI/BehaviorContext.h>
+#include <Prefab/PrefabSystemComponentInterface.h>
+#include <Prefab/PrefabSystemScriptingHandler.h>
+#include <AzCore/Component/Entity.h>
+
+namespace AzToolsFramework::Prefab
+{
+    void PrefabSystemScriptingHandler::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+        {
+            behaviorContext->ConstantProperty("InvalidTemplateId", BehaviorConstant(InvalidTemplateId))
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Module, "prefab")
+                ->Attribute(AZ::Script::Attributes::Category, "Prefab");
+
+            behaviorContext->EBus<PrefabSystemScriptingBus>("PrefabSystemScriptingBus")
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Module, "prefab")
+                ->Attribute(AZ::Script::Attributes::Category, "Prefab")
+                ->Event("CreatePrefab", &PrefabSystemScriptingBus::Events::CreatePrefabTemplate);
+        }
+    }
+
+    void PrefabSystemScriptingHandler::Connect(PrefabSystemComponentInterface* prefabSystemComponentInterface)
+    {
+        AZ_Assert(prefabSystemComponentInterface != nullptr, "prefabSystemComponentInterface must not be null");
+        m_prefabSystemComponentInterface = prefabSystemComponentInterface;
+        PrefabSystemScriptingBus::Handler::BusConnect();
+    }
+
+    void PrefabSystemScriptingHandler::Disconnect()
+    {
+        PrefabSystemScriptingBus::Handler::BusDisconnect();
+    }
+
+    TemplateId PrefabSystemScriptingHandler::CreatePrefabTemplate(const AZStd::vector<AZ::EntityId>& entityIds, const AZStd::string& filePath)
+    {
+        AZStd::vector<AZ::Entity*> entities;
+
+        for (const auto& entityId : entityIds)
+        {
+            AZ::Entity* entity = nullptr;
+            AZ::ComponentApplicationBus::BroadcastResult(entity, &AZ::ComponentApplicationBus::Events::FindEntity, entityId);
+
+            AZ_Warning(
+                "PrefabSystemComponent", entity, "EntityId %s was not found and will not be added to the prefab",
+                entityId.ToString().c_str());
+
+            if (entity)
+            {
+                entities.push_back(entity);
+            }
+        }
+        
+        auto prefab = m_prefabSystemComponentInterface->CreatePrefab(entities, {}, AZ::IO::PathView(AZStd::string_view(filePath)));
+
+        if (!prefab)
+        {
+            AZ_Error("PrefabSystemComponenent", false, "Failed to create prefab %s", filePath.c_str());
+            return InvalidTemplateId;
+        }
+
+        return prefab->GetTemplateId();
+    }
+}

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabSystemScriptingHandler.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+#include <Prefab/PrefabSystemScriptingBus.h>
+
+namespace AzToolsFramework
+{
+    namespace Prefab
+    {
+        class PrefabSystemScriptingHandler
+            : PrefabSystemScriptingBus::Handler
+        {
+        public:
+            static void Reflect(AZ::ReflectContext* context);
+
+            PrefabSystemScriptingHandler() = default;
+
+            void Connect(PrefabSystemComponentInterface* prefabSystemComponentInterface);
+            void Disconnect();
+
+        private:
+            AZ_DISABLE_COPY(PrefabSystemScriptingHandler);
+
+            //////////////////////////////////////////////////////////////////////////
+            // PrefabSystemScriptingBus implementation
+            TemplateId CreatePrefabTemplate(const AZStd::vector<AZ::EntityId>& entityIds, const AZStd::string& filePath) override;
+            //////////////////////////////////////////////////////////////////////////
+
+            PrefabSystemComponentInterface* m_prefabSystemComponentInterface = nullptr;
+        };
+    } // namespace Prefab
+} // namespace AzToolsFramework
+

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Procedural/ProceduralPrefabAsset.cpp

@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#include <Prefab/Procedural/ProceduralPrefabAsset.h>
+#include <AzCore/Serialization/SerializeContext.h>
+#include <AzCore/Serialization/Json/RegistrationContext.h>
+#include <AzCore/Settings/SettingsRegistry.h>
+#include <AzFramework/FileFunc/FileFunc.h>
+
+namespace AZ::Prefab
+{
+    static constexpr const char s_useProceduralPrefabsKey[] = "/O3DE/Preferences/Prefabs/UseProceduralPrefabs";
+
+    // ProceduralPrefabAsset
+
+    ProceduralPrefabAsset::ProceduralPrefabAsset(const AZ::Data::AssetId& assetId)
+        : AZ::Data::AssetData(assetId)
+        , m_templateId(AzToolsFramework::Prefab::InvalidTemplateId)
+    {
+    }
+
+    void ProceduralPrefabAsset::Reflect(AZ::ReflectContext* context)
+    {
+        PrefabDomData::Reflect(context);
+
+        if (auto* serializeContext = azrtti_cast<AZ::SerializeContext*>(context); serializeContext != nullptr)
+        {
+            serializeContext->Class<ProceduralPrefabAsset, AZ::Data::AssetData>()
+                ->Version(1)
+                ->Field("Template Name", &ProceduralPrefabAsset::m_templateName)
+                ->Field("Template ID", &ProceduralPrefabAsset::m_templateId);
+        }
+    }
+
+    const AZStd::string& ProceduralPrefabAsset::GetTemplateName() const
+    {
+        return m_templateName;
+    }
+
+    void ProceduralPrefabAsset::SetTemplateName(AZStd::string templateName)
+    {
+        m_templateName = AZStd::move(templateName);
+    }
+
+    AzToolsFramework::Prefab::TemplateId ProceduralPrefabAsset::GetTemplateId() const
+    {
+        return m_templateId;
+    }
+
+    void ProceduralPrefabAsset::SetTemplateId(AzToolsFramework::Prefab::TemplateId templateId)
+    {
+        m_templateId = templateId;
+    }
+
+    bool ProceduralPrefabAsset::UseProceduralPrefabs()
+    {
+        bool useProceduralPrefabs = false;
+        bool result = AZ::SettingsRegistry::Get()->GetObject(useProceduralPrefabs, s_useProceduralPrefabsKey);
+        return result && useProceduralPrefabs;
+    }
+
+    // PrefabDomData
+
+    void PrefabDomData::Reflect(AZ::ReflectContext* context)
+    {
+        if (auto* jsonContext = azrtti_cast<AZ::JsonRegistrationContext*>(context))
+        {
+            jsonContext->Serializer<PrefabDomDataJsonSerializer>()->HandlesType<PrefabDomData>();
+        }
+
+        AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(context);
+        if (serializeContext)
+        {
+            serializeContext->Class<PrefabDomData>()
+                ->Version(1);
+        }
+    }
+
+    void PrefabDomData::CopyValue(const rapidjson::Value& inputValue)
+    {
+        m_prefabDom.CopyFrom(inputValue, m_prefabDom.GetAllocator());
+    }
+
+    const AzToolsFramework::Prefab::PrefabDom& PrefabDomData::GetValue() const
+    {
+        return m_prefabDom;
+    }
+
+    // PrefabDomDataJsonSerializer
+
+    AZ::JsonSerializationResult::Result PrefabDomDataJsonSerializer::Load(
+        void* outputValue,
+        [[maybe_unused]] const AZ::Uuid& outputValueTypeId,
+        const rapidjson::Value& inputValue,
+        AZ::JsonDeserializerContext& context)
+    {
+        AZ_Assert(outputValueTypeId == azrtti_typeid<PrefabDomData>(),
+            "PrefabDomDataJsonSerializer Load against output typeID that was not PrefabDomData");
+        AZ_Assert(outputValue, "PrefabDomDataJsonSerializer Load against null output");
+
+        namespace JSR = AZ::JsonSerializationResult;
+        JSR::ResultCode result(JSR::Tasks::ReadField);
+
+        if (inputValue.IsObject() == false)
+        {
+            result.Combine(context.Report(JSR::Tasks::ReadField, JSR::Outcomes::Missing, "Missing object"));
+            return context.Report(result, "Prefab should be an object.");
+        }
+
+        if (inputValue.MemberCount() < 1)
+        {
+            result.Combine(context.Report(JSR::Tasks::ReadField, JSR::Outcomes::Missing, "Missing members"));
+            return context.Report(result, "Prefab should have multiple members.");
+        }
+
+        auto* outputVariable = reinterpret_cast<PrefabDomData*>(outputValue);
+        outputVariable->CopyValue(inputValue);
+        return context.Report(result, "Loaded procedural prefab");
+    }
+
+    AZ::JsonSerializationResult::Result PrefabDomDataJsonSerializer::Store(
+        rapidjson::Value& outputValue,
+        const void* inputValue,
+        [[maybe_unused]] const void* defaultValue,
+        [[maybe_unused]] const AZ::Uuid& valueTypeId,
+        AZ::JsonSerializerContext& context)
+    {
+        AZ_Assert(inputValue, "Input value for PrefabDomDataJsonSerializer can't be null.");
+        AZ_Assert(azrtti_typeid<PrefabDomData>() == valueTypeId,
+            "Unable to Serialize because the provided type is not PrefabGroup::PrefabDomData.");
+
+        const PrefabDomData* prefabDomData = reinterpret_cast<const PrefabDomData*>(inputValue);
+
+        namespace JSR = AZ::JsonSerializationResult;
+        JSR::ResultCode result(JSR::Tasks::WriteValue);
+        outputValue.SetObject();
+        outputValue.CopyFrom(prefabDomData->GetValue(), context.GetJsonAllocator());
+        return context.Report(result, "Stored procedural prefab");
+    }
+}

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/Procedural/ProceduralPrefabAsset.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzCore/Asset/AssetCommon.h>
+#include <AzToolsFramework/Prefab/PrefabDomTypes.h>
+#include <AzToolsFramework/Prefab/PrefabIdTypes.h>
+#include <AzCore/Serialization/Json/BaseJsonSerializer.h>
+
+namespace AZ::Prefab
+{
+    //! A wrapper around the JSON DOM type so that the assets can read in and write out
+    //! JSON directly since Prefabs are JSON serialized entity-component data
+    class PrefabDomData final
+    {
+    public:
+        AZ_RTTI(PrefabDomData, "{C73A3360-D772-4D41-9118-A039BF9340C1}");
+        AZ_CLASS_ALLOCATOR(PrefabDomData, AZ::SystemAllocator, 0);
+
+        PrefabDomData() = default;
+        ~PrefabDomData() = default;
+
+        static void Reflect(AZ::ReflectContext* context);
+
+        void CopyValue(const rapidjson::Value& inputValue);
+        const AzToolsFramework::Prefab::PrefabDom& GetValue() const;
+
+    private:
+        AzToolsFramework::Prefab::PrefabDom m_prefabDom;
+    };
+
+    //! Registered to help read/write JSON for the PrefabDomData::m_prefabDom
+    class PrefabDomDataJsonSerializer final
+        : public AZ::BaseJsonSerializer
+    {
+    public:
+        AZ_RTTI(PrefabDomDataJsonSerializer, "{9FC48652-A00B-4EFA-8FD9-345A8E625439}", BaseJsonSerializer);
+        AZ_CLASS_ALLOCATOR(PrefabDomDataJsonSerializer, AZ::SystemAllocator, 0);
+
+        ~PrefabDomDataJsonSerializer() override = default;
+
+        AZ::JsonSerializationResult::Result Load(
+            void* outputValue,
+            const AZ::Uuid& outputValueTypeId,
+            const rapidjson::Value& inputValue,
+            AZ::JsonDeserializerContext& context) override;
+
+        AZ::JsonSerializationResult::Result Store(
+            rapidjson::Value& outputValue,
+            const void* inputValue,
+            const void* defaultValue,
+            const AZ::Uuid& valueTypeId,
+            AZ::JsonSerializerContext& context) override;
+    };
+
+    //! An asset type to register templates into the Prefab system so that they
+    //! can instantiate like Authored Prefabs
+    class ProceduralPrefabAsset
+        : public AZ::Data::AssetData
+    {
+    public:
+        AZ_CLASS_ALLOCATOR(ProceduralPrefabAsset, AZ::SystemAllocator, 0);
+        AZ_RTTI(ProceduralPrefabAsset, "{9B7C8459-471E-4EAD-A363-7990CC4065A9}", AZ::Data::AssetData);
+
+        static bool UseProceduralPrefabs();
+
+        ProceduralPrefabAsset(const AZ::Data::AssetId& assetId = AZ::Data::AssetId());
+        ~ProceduralPrefabAsset() override = default;
+        ProceduralPrefabAsset(const ProceduralPrefabAsset& rhs) = delete;
+        ProceduralPrefabAsset& operator=(const ProceduralPrefabAsset& rhs) = delete;
+
+        const AZStd::string& GetTemplateName() const;
+        void SetTemplateName(AZStd::string templateName);
+
+        AzToolsFramework::Prefab::TemplateId GetTemplateId() const;
+        void SetTemplateId(AzToolsFramework::Prefab::TemplateId templateId);
+
+        static void Reflect(AZ::ReflectContext* context);
+
+    private:
+        AZStd::string m_templateName;
+        AzToolsFramework::Prefab::TemplateId m_templateId;
+    };
+
+}

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/ScriptingPrefabLoader.cpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <Prefab/ScriptingPrefabLoader.h>
+
+namespace AzToolsFramework::Prefab
+{
+    void ScriptingPrefabLoader::Connect(PrefabLoaderInterface* prefabLoaderInterface)
+    {
+        AZ_Assert(prefabLoaderInterface, "prefabLoaderInterface must not be null");
+
+        m_prefabLoaderInterface = prefabLoaderInterface;
+        PrefabLoaderScriptingBus::Handler::BusConnect();
+    }
+
+    void ScriptingPrefabLoader::Disconnect()
+    {
+        PrefabLoaderScriptingBus::Handler::BusDisconnect();
+    }
+
+    AZ::Outcome<AZStd::string, void> ScriptingPrefabLoader::SaveTemplateToString(TemplateId templateId)
+    {
+        AZStd::string json;
+
+        if (m_prefabLoaderInterface->SaveTemplateToString(templateId, json))
+        {
+            return AZ::Success(json);
+        }
+
+        return AZ::Failure();
+    }
+} // namespace AzToolsFramework::Prefab

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/ScriptingPrefabLoader.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <Prefab/PrefabLoaderInterface.h>
+#include <Prefab/PrefabLoaderScriptingBus.h>
+
+namespace AzToolsFramework
+{
+    namespace Prefab
+    {
+        /**
+        * The Scripting Prefab Loader handles scripting-friendly API requests for the prefab loader
+        */
+        class ScriptingPrefabLoader
+            : private PrefabLoaderScriptingBus::Handler
+        {
+        public:
+            AZ_CLASS_ALLOCATOR(ScriptingPrefabLoader, AZ::SystemAllocator, 0);
+            AZ_RTTI(ScriptingPrefabLoader, "{ABC3C989-4D4F-41E7-B25B-B0FEF97177E6}");
+
+            void Connect(PrefabLoaderInterface* prefabLoaderInterface);
+            void Disconnect();
+            
+        private:
+
+            //////////////////////////////////////////////////////////////////////////
+            // PrefabLoaderRequestBus implementation
+            AZ::Outcome<AZStd::string, void> SaveTemplateToString(TemplateId templateId) override;
+            //////////////////////////////////////////////////////////////////////////
+
+            PrefabLoaderInterface* m_prefabLoaderInterface = nullptr;
+        };
+    } // namespace Prefab
+} // namespace AzToolsFramework
+

Code/Framework/AzToolsFramework/AzToolsFramework/ToolsComponents/ScriptEditorComponent.cpp

@@ -1025,7 +1025,7 @@ namespace AzToolsFramework
                         ->Attribute(AZ::Edit::Attributes::ViewportIcon, "Icons/Components/Viewport/LuaScript.svg")
                         ->Attribute(AZ::Edit::Attributes::PrimaryAssetType, AZ::AzTypeInfo<AZ::ScriptAsset>::Uuid())
                         ->Attribute(AZ::Edit::Attributes::ViewportIcon, "Icons/Components/Viewport/Script.png")
-                        ->Attribute(AZ::Edit::Attributes::HelpPageURL, "https://o3de.org/docs/user-guide/components/reference/lua-script/")
+                        ->Attribute(AZ::Edit::Attributes::HelpPageURL, "https://o3de.org/docs/user-guide/components/reference/scripting/lua-script/")
                         ->DataElement("AssetRef", &ScriptEditorComponent::m_scriptAsset, "Script", "Which script to use")
                             ->Attribute(AZ::Edit::Attributes::ChangeNotify, &ScriptEditorComponent::ScriptHasChanged)
                             ->Attribute("BrowseIcon", ":/stylesheet/img/UI20/browse-edit-select-files.svg")

Code/Framework/AzToolsFramework/AzToolsFramework/UI/Prefab/PrefabIntegrationManager.cpp

@@ -13,6 +13,7 @@
 #include <AzCore/StringFunc/StringFunc.h>
 #include <AzCore/Component/TransformBus.h>
 #include <AzCore/std/smart_ptr/make_shared.h>
+#include <AzCore/Asset/AssetManager.h>
 
 #include <AzFramework/API/ApplicationAPI.h>
 #include <AzFramework/Asset/AssetSystemBus.h>
@@ -25,6 +26,9 @@
 #include <AzToolsFramework/ContainerEntity/ContainerEntityInterface.h>
 #include <AzToolsFramework/Prefab/PrefabFocusInterface.h>
 #include <AzToolsFramework/Prefab/PrefabLoaderInterface.h>
+#include <AzToolsFramework/Prefab/Procedural/ProceduralPrefabAsset.h>
+#include <AzToolsFramework/Prefab/Instance/InstanceEntityMapperInterface.h>
+#include <AzToolsFramework/Prefab/EditorPrefabComponent.h>
 #include <AzToolsFramework/ToolsComponents/EditorLayerComponentBus.h>
 #include <AzToolsFramework/UI/EditorEntityUi/EditorEntityUiInterface.h>
 #include <AzToolsFramework/UI/Prefab/PrefabIntegrationInterface.h>
@@ -218,6 +222,16 @@ namespace AzToolsFramework
                     instantiateAction, &QAction::triggered, instantiateAction, [] { ContextMenu_InstantiatePrefab(); });
             }
 
+            // Instantiate Procedural Prefab
+            if (AZ::Prefab::ProceduralPrefabAsset::UseProceduralPrefabs())
+            {
+                QAction* action = menu->addAction(QObject::tr("Instantiate Procedural Prefab..."));
+                action->setToolTip(QObject::tr("Instantiates a procedural prefab file in a prefab."));
+
+                QObject::connect(
+                    action, &QAction::triggered, action, [] { ContextMenu_InstantiateProceduralPrefab(); });
+            }
+
             menu->addSeparator();
 
             bool itemWasShown = false;
@@ -435,6 +449,38 @@ namespace AzToolsFramework
             }
         }
 
+        void PrefabIntegrationManager::ContextMenu_InstantiateProceduralPrefab()
+        {
+            AZStd::string prefabAssetPath;
+            bool hasUserForProceduralPrefabAsset = QueryUserForProceduralPrefabAsset(prefabAssetPath);
+
+            if (hasUserForProceduralPrefabAsset)
+            {
+                AZ::EntityId parentId;
+                AZ::Vector3 position = AZ::Vector3::CreateZero();
+
+                EntityIdList selectedEntities;
+                ToolsApplicationRequestBus::BroadcastResult(selectedEntities, &ToolsApplicationRequests::GetSelectedEntities);
+                if (selectedEntities.size() == 1)
+                {
+                    parentId = selectedEntities.front();
+                    AZ::TransformBus::EventResult(position, parentId, &AZ::TransformInterface::GetWorldTranslation);
+                }
+                else
+                {
+                    // otherwise return since it needs to be inside an authored prefab
+                    return;
+                }
+
+                // Instantiating from context menu always puts the instance at the root level
+                auto createPrefabOutcome = s_prefabPublicInterface->InstantiatePrefab(prefabAssetPath, parentId, position);
+                if (!createPrefabOutcome.IsSuccess())
+                {
+                    WarnUserOfError("Prefab Instantiation Error", createPrefabOutcome.GetError());
+                }
+            }
+        }
+
         void PrefabIntegrationManager::ContextMenu_EditPrefab(AZ::EntityId containerEntity)
         {
             s_prefabFocusInterface->FocusOnOwningPrefab(containerEntity);
@@ -690,6 +736,33 @@ namespace AzToolsFramework
             return true;
         }
 
+        bool PrefabIntegrationManager::QueryUserForProceduralPrefabAsset(AZStd::string& outPrefabAssetPath)
+        {
+            using namespace AzToolsFramework;
+            auto selection = AssetBrowser::AssetSelectionModel::AssetTypeSelection(azrtti_typeid<AZ::Prefab::ProceduralPrefabAsset>());
+            EditorRequests::Bus::Broadcast(&AzToolsFramework::EditorRequests::BrowseForAssets, selection);
+
+            if (!selection.IsValid())
+            {
+                return false;
+            }
+
+            auto product = azrtti_cast<const ProductAssetBrowserEntry*>(selection.GetResult());
+            if (product == nullptr)
+            {
+                return false;
+            }
+
+            outPrefabAssetPath = product->GetRelativePath();
+
+            auto asset = AZ::Data::AssetManager::Instance().GetAsset(
+                product->GetAssetId(),
+                azrtti_typeid<AZ::Prefab::ProceduralPrefabAsset>(),
+                AZ::Data::AssetLoadBehavior::Default);
+
+            return asset.BlockUntilLoadComplete() != AZ::Data::AssetData::AssetStatus::Error;
+        }
+
         void PrefabIntegrationManager::WarnUserOfError(AZStd::string_view title, AZStd::string_view message)
         {
             QWidget* activeWindow = QApplication::activeWindow();

Code/Framework/AzToolsFramework/AzToolsFramework/UI/Prefab/PrefabIntegrationManager.h

@@ -91,6 +91,7 @@ namespace AzToolsFramework
             // Context menu item handlers
             static void ContextMenu_CreatePrefab(AzToolsFramework::EntityIdList selectedEntities);
             static void ContextMenu_InstantiatePrefab();
+            static void ContextMenu_InstantiateProceduralPrefab();
             static void ContextMenu_EditPrefab(AZ::EntityId containerEntity);
             static void ContextMenu_SavePrefab(AZ::EntityId containerEntity);
             static void ContextMenu_DeleteSelected();
@@ -101,6 +102,7 @@ namespace AzToolsFramework
                 const AZStd::string& suggestedName, const char* initialTargetDirectory, AZ::u32 prefabUserSettingsId, QWidget* activeWindow,
                 AZStd::string& outPrefabName, AZStd::string& outPrefabFilePath);
             static bool QueryUserForPrefabFilePath(AZStd::string& outPrefabFilePath);
+            static bool QueryUserForProceduralPrefabAsset(AZStd::string& outPrefabAssetPath);
             static void WarnUserOfError(AZStd::string_view title, AZStd::string_view message);
 
             // Path and filename generation

Code/Framework/AzToolsFramework/AzToolsFramework/ViewportSelection/EditorTransformComponentSelection.cpp

@@ -103,10 +103,6 @@ namespace AzToolsFramework
     static const char* const ResetEntityTransformDesc = "Reset transform based on manipulator mode";
     static const char* const ResetManipulatorTitle = "Reset Manipulator";
     static const char* const ResetManipulatorDesc = "Reset the manipulator to recenter it on the selected entity";
-    static const char* const ResetTransformLocalTitle = "Reset Transform (Local)";
-    static const char* const ResetTransformLocalDesc = "Reset transform to local space";
-    static const char* const ResetTransformWorldTitle = "Reset Transform (World)";
-    static const char* const ResetTransformWorldDesc = "Reset transform to world space";
 
     static const char* const EntityBoxSelectUndoRedoDesc = "Box Select Entities";
     static const char* const EntityDeselectUndoRedoDesc = "Deselect Entity";
@@ -2424,45 +2420,9 @@ namespace AzToolsFramework
 
         AddAction(
             m_actions, { QKeySequence(Qt::CTRL + Qt::Key_R) }, EditResetManipulator, ResetManipulatorTitle, ResetManipulatorDesc,
-            AZStd::bind(AZStd::mem_fn(&EditorTransformComponentSelection::DelegateClearManipulatorOverride), this));
-
-        AddAction(
-            m_actions, { QKeySequence(Qt::ALT + Qt::Key_R) }, EditResetLocal, ResetTransformLocalTitle, ResetTransformLocalDesc,
-            [this]()
+            [this]
             {
-                switch (m_mode)
-                {
-                case Mode::Rotation:
-                    ResetOrientationForSelectedEntitiesLocal();
-                    break;
-                case Mode::Scale:
-                    CopyScaleToSelectedEntitiesIndividualWorld(1.0f);
-                    break;
-                case Mode::Translation:
-                    // do nothing
-                    break;
-                }
-            });
-
-        AddAction(
-            m_actions, { QKeySequence(Qt::SHIFT + Qt::Key_R) }, EditResetWorld, ResetTransformWorldTitle, ResetTransformWorldDesc,
-            [this]()
-            {
-                switch (m_mode)
-                {
-                case Mode::Rotation:
-                    {
-                        // begin an undo batch so operations inside CopyOrientation... and
-                        // DelegateClear... are grouped into a single undo/redo
-                        ScopedUndoBatch undoBatch{ ResetTransformWorldTitle };
-                        CopyOrientationToSelectedEntitiesIndividual(AZ::Quaternion::CreateIdentity());
-                        ClearManipulatorOrientationOverride();
-                    }
-                    break;
-                case Mode::Scale:
-                case Mode::Translation:
-                    break;
-                }
+                DelegateClearManipulatorOverride();
             });
 
         AddAction(

Code/Framework/AzToolsFramework/AzToolsFramework/ViewportSelection/EditorTransformComponentSelectionRequestBus.h

@@ -31,8 +31,6 @@ namespace AzToolsFramework
     constexpr inline AZ::Crc32 EditPivot = AZ_CRC_CE("com.o3de.action.editortransform.editpivot");
     constexpr inline AZ::Crc32 EditReset = AZ_CRC_CE("com.o3de.action.editortransform.editreset");
     constexpr inline AZ::Crc32 EditResetManipulator = AZ_CRC_CE("com.o3de.action.editortransform.editresetmanipulator");
-    constexpr inline AZ::Crc32 EditResetLocal = AZ_CRC_CE("com.o3de.action.editortransform.editresetlocal");
-    constexpr inline AZ::Crc32 EditResetWorld = AZ_CRC_CE("com.o3de.action.editortransform.editresetworld");
     constexpr inline AZ::Crc32 ViewportUiVisible = AZ_CRC_CE("com.o3de.action.editortransform.viewportuivisible");
     //@}
 

Code/Framework/AzToolsFramework/AzToolsFramework/aztoolsframework_files.cmake

@@ -154,6 +154,8 @@ set(FILES
     Entity/SliceEditorEntityOwnershipService.h
     Entity/SliceEditorEntityOwnershipService.cpp
     Entity/SliceEditorEntityOwnershipServiceBus.h
+    Entity/EntityUtilityComponent.h
+    Entity/EntityUtilityComponent.cpp
     Fingerprinting/TypeFingerprinter.h
     Fingerprinting/TypeFingerprinter.cpp
     FocusMode/FocusModeInterface.h
@@ -648,9 +650,15 @@ set(FILES
     Prefab/PrefabLoader.h
     Prefab/PrefabLoader.cpp
     Prefab/PrefabLoaderInterface.h
+    Prefab/PrefabLoaderScriptingBus.h
+    Prefab/ScriptingPrefabLoader.h
+    Prefab/ScriptingPrefabLoader.cpp
     Prefab/PrefabSystemComponent.h
     Prefab/PrefabSystemComponent.cpp
     Prefab/PrefabSystemComponentInterface.h
+    Prefab/PrefabSystemScriptingBus.h
+    Prefab/PrefabSystemScriptingHandler.h
+    Prefab/PrefabSystemScriptingHandler.cpp
     Prefab/Instance/Instance.h
     Prefab/Instance/Instance.cpp
     Prefab/Instance/InstanceSerializer.h
@@ -673,6 +681,8 @@ set(FILES
     Prefab/Instance/TemplateInstanceMapperInterface.h
     Prefab/Link/Link.h
     Prefab/Link/Link.cpp
+    Prefab/Procedural/ProceduralPrefabAsset.h
+    Prefab/Procedural/ProceduralPrefabAsset.cpp
     Prefab/PrefabPublicHandler.h
     Prefab/PrefabPublicHandler.cpp
     Prefab/PrefabPublicInterface.h

Code/Framework/AzToolsFramework/Tests/Entity/EntityUtilityComponentTests.cpp

@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzFramework/Entity/BehaviorEntity.h>
+#include <AzTest/AzTest.h>
+
+#include <AzToolsFramework/Application/ToolsApplication.h>
+#include <AzToolsFramework/Entity/EditorEntityHelpers.h>
+#include <AzToolsFramework/UnitTest/AzToolsFrameworkTestHelpers.h>
+#include <Entity/EntityUtilityComponent.h>
+#include <ToolsComponents/TransformComponent.h>
+
+namespace UnitTest
+{
+    // Global variables for communicating between Lua test code and C++
+    AZ::EntityId g_globalEntityId = AZ::EntityId{};
+    AZStd::string g_globalString = "";
+    AzFramework::BehaviorComponentId g_globalComponentId = {};
+    AZStd::vector<AzToolsFramework::ComponentDetails> g_globalComponentDetails = {};
+    bool g_globalBool = false;
+
+    class EntityUtilityComponentTests
+        : public ToolsApplicationFixture
+    {
+        void InitProperties()
+        {
+            AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
+
+            ASSERT_NE(componentApplicationRequests, nullptr);
+
+            auto behaviorContext = componentApplicationRequests->GetBehaviorContext();
+
+            ASSERT_NE(behaviorContext, nullptr);
+
+            behaviorContext->Property("g_globalEntityId", BehaviorValueProperty(&g_globalEntityId));
+            behaviorContext->Property("g_globalString", BehaviorValueProperty(&g_globalString));
+            behaviorContext->Property("g_globalComponentId", BehaviorValueProperty(&g_globalComponentId));
+            behaviorContext->Property("g_globalBool", BehaviorValueProperty(&g_globalBool));
+            behaviorContext->Property("g_globalComponentDetails", BehaviorValueProperty(&g_globalComponentDetails));
+
+            g_globalEntityId = AZ::EntityId{};
+            g_globalString = AZStd::string{};
+            g_globalComponentId = AzFramework::BehaviorComponentId{};
+            g_globalBool = false;
+            g_globalComponentDetails = AZStd::vector<AzToolsFramework::ComponentDetails>{};
+        }
+
+        void SetUpEditorFixtureImpl() override
+        {
+            InitProperties();
+        }
+        
+        void TearDownEditorFixtureImpl() override
+        {
+            g_globalString.set_capacity(0); // Free all memory
+            g_globalComponentDetails.set_capacity(0);
+        }
+    };
+
+    TEST_F(EntityUtilityComponentTests, CreateEntity)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalEntityId = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            my_entity = Entity(g_globalEntityId)
+            g_globalString = my_entity:GetName()
+            )LUA");
+
+        EXPECT_NE(g_globalEntityId, AZ::EntityId{});
+        EXPECT_STREQ(g_globalString.c_str(), "test");
+
+        AZ::Entity* entity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(g_globalEntityId);
+
+        ASSERT_NE(entity, nullptr);
+
+        // Test cleaning up, make sure the entity is destroyed
+        AzToolsFramework::EntityUtilityBus::Broadcast(&AzToolsFramework::EntityUtilityBus::Events::ResetEntityContext);
+
+        entity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(g_globalEntityId);
+
+        ASSERT_EQ(entity, nullptr);
+    }
+
+    TEST_F(EntityUtilityComponentTests, CreateEntityEmptyName)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalEntityId = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("")
+            )LUA");
+
+        EXPECT_NE(g_globalEntityId, AZ::EntityId{});
+
+        AZ::Entity* entity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(g_globalEntityId);
+
+        ASSERT_NE(entity, nullptr);
+    }
+
+    TEST_F(EntityUtilityComponentTests, FindComponent)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            ent_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            g_globalComponentId = EntityUtilityBus.Broadcast.GetOrAddComponentByTypeName(ent_id, "27F1E1A1-8D9D-4C3B-BD3A-AFB9762449C0 TransformComponent")
+            )LUA");
+        
+        EXPECT_TRUE(g_globalComponentId.IsValid());
+    }
+
+    TEST_F(EntityUtilityComponentTests, InvalidComponentName)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        AZ_TEST_START_TRACE_SUPPRESSION;
+        sc.Execute(R"LUA(
+            ent_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            g_globalComponentId = EntityUtilityBus.Broadcast.GetOrAddComponentByTypeName(ent_id, "ThisIsNotAComponent-Error")
+            )LUA");
+        AZ_TEST_STOP_TRACE_SUPPRESSION(1);
+        EXPECT_FALSE(g_globalComponentId.IsValid());
+    }
+
+    TEST_F(EntityUtilityComponentTests, InvalidComponentId)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        AZ_TEST_START_TRACE_SUPPRESSION;
+        sc.Execute(R"LUA(
+            ent_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            g_globalComponentId = EntityUtilityBus.Broadcast.GetOrAddComponentByTypeName(ent_id, "{1234-hello-world-this-is-not-an-id}")
+            )LUA");
+        AZ_TEST_STOP_TRACE_SUPPRESSION(1); // Should get 1 error stating the type id is not valid
+        EXPECT_FALSE(g_globalComponentId.IsValid());
+    }
+
+    TEST_F(EntityUtilityComponentTests, CreateComponent)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            ent_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            g_globalComponentId = EntityUtilityBus.Broadcast.GetOrAddComponentByTypeName(ent_id, "ScriptEditorComponent")
+            )LUA");
+
+        EXPECT_TRUE(g_globalComponentId.IsValid());
+    }
+
+    TEST_F(EntityUtilityComponentTests, UpdateComponent)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalEntityId = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            comp_id = EntityUtilityBus.Broadcast.GetOrAddComponentByTypeName(g_globalEntityId, "{27F1E1A1-8D9D-4C3B-BD3A-AFB9762449C0} TransformComponent")
+            json_update = [[
+            {
+                "Transform Data": { "Rotate": [0.0, 0.1, 180.0] }
+            }
+            ]]
+            g_globalBool = EntityUtilityBus.Broadcast.UpdateComponentForEntity(g_globalEntityId, comp_id, json_update);
+            )LUA");
+
+        EXPECT_TRUE(g_globalBool);
+        EXPECT_NE(g_globalEntityId, AZ::EntityId(AZ::EntityId::InvalidEntityId));
+
+        AZ::Entity* entity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(g_globalEntityId);
+
+        auto* transformComponent = entity->FindComponent<AzToolsFramework::Components::TransformComponent>();
+
+        ASSERT_NE(transformComponent, nullptr);
+
+        AZ::Vector3 localRotation = transformComponent->GetLocalRotationQuaternion().GetEulerDegrees();
+
+        EXPECT_EQ(localRotation, AZ::Vector3(.0f, 0.1f, 180.0f));
+    }
+
+    TEST_F(EntityUtilityComponentTests, GetComponentJson)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalString = EntityUtilityBus.Broadcast.GetComponentDefaultJson("ScriptEditorComponent")
+            )LUA");
+
+        EXPECT_STRNE(g_globalString.c_str(), "");
+    }
+
+    TEST_F(EntityUtilityComponentTests, GetComponentJsonDoesNotExist)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        AZ_TEST_START_TRACE_SUPPRESSION;
+        sc.Execute(R"LUA(
+            g_globalString = EntityUtilityBus.Broadcast.GetComponentDefaultJson("404")
+            )LUA");
+        AZ_TEST_STOP_TRACE_SUPPRESSION(1); // 1 error: Failed to find component id for type name 404
+
+        EXPECT_STREQ(g_globalString.c_str(), "");
+    }
+
+    TEST_F(EntityUtilityComponentTests, SearchComponents)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalComponentDetails = EntityUtilityBus.Broadcast.FindMatchingComponents("Transform*")
+            )LUA");
+
+        // There should be 2 transform components
+        EXPECT_EQ(g_globalComponentDetails.size(), 2);
+    }
+
+    TEST_F(EntityUtilityComponentTests, SearchComponentsNotFound)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            g_globalComponentDetails = EntityUtilityBus.Broadcast.FindMatchingComponents("404")
+            )LUA");
+        
+        EXPECT_EQ(g_globalComponentDetails.size(), 0);
+    }
+}

Code/Framework/AzToolsFramework/Tests/LogLines.cpp

@@ -25,7 +25,7 @@ namespace UnitTest
             R"X(Executing RC.EXE: '"E:\lyengine\dev\windows\bin\profile\rc.exe" "E:/Directory/File.tga")X",
             R"X(Executing RC.EXE with working directory : '')X",
             R"X(ResourceCompiler  64 - bit  DEBUG)X",
-            R"X(Platform support : PC, PowerVR, etc2Comp)X",
+            R"X(Platform support : PC, PowerVR)X",
             R"X(Version 1.1.8.6  Nov  5 2018 13 : 28 : 28)X"
         };
 

Code/Framework/AzToolsFramework/Tests/Prefab/PrefabScriptingTests.cpp

@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzToolsFramework/ToolsComponents/TransformComponent.h>
+#include <Entity/EntityUtilityComponent.h>
+
+#include <Prefab/PrefabTestComponent.h>
+#include <Prefab/PrefabTestDomUtils.h>
+#include <Prefab/PrefabTestFixture.h>
+
+namespace UnitTest
+{
+    TemplateId g_globalTemplateId = {};
+    AZStd::string g_globalPrefabString = "";
+
+    class PrefabScriptingTest : public PrefabTestFixture
+    {
+        void InitProperties() const
+        {
+            AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
+
+            ASSERT_NE(componentApplicationRequests, nullptr);
+
+            auto behaviorContext = componentApplicationRequests->GetBehaviorContext();
+
+            ASSERT_NE(behaviorContext, nullptr);
+
+            behaviorContext->Property("g_globalTemplateId", BehaviorValueProperty(&g_globalTemplateId));
+            behaviorContext->Property("g_globalPrefabString", BehaviorValueProperty(&g_globalPrefabString));
+
+            g_globalTemplateId = TemplateId{};
+            g_globalPrefabString = AZStd::string{};
+        }
+
+        void SetUpEditorFixtureImpl() override
+        {
+            InitProperties();
+        }
+
+        void TearDownEditorFixtureImpl() override
+        {
+            g_globalPrefabString.set_capacity(0); // Free all memory
+        }
+    };
+
+    TEST_F(PrefabScriptingTest, PrefabScripting_CreatePrefab)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            my_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            entities = vector_EntityId()
+            entities:push_back(my_id)
+            g_globalTemplateId = PrefabSystemScriptingBus.Broadcast.CreatePrefab(entities, "test.prefab")
+            )LUA");
+
+        EXPECT_NE(g_globalTemplateId, TemplateId{});
+
+        auto prefabSystemComponentInterface = AZ::Interface<PrefabSystemComponentInterface>::Get();
+
+        ASSERT_NE(prefabSystemComponentInterface, nullptr);
+
+        TemplateReference templateRef = prefabSystemComponentInterface->FindTemplate(g_globalTemplateId);
+
+        EXPECT_TRUE(templateRef);
+    }
+
+    TEST_F(PrefabScriptingTest, PrefabScripting_CreatePrefab_NoEntities)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            my_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            entities = vector_EntityId()
+            g_globalTemplateId = PrefabSystemScriptingBus.Broadcast.CreatePrefab(entities, "test.prefab")
+            )LUA");
+
+        EXPECT_NE(g_globalTemplateId, TemplateId{});
+
+        auto prefabSystemComponentInterface = AZ::Interface<PrefabSystemComponentInterface>::Get();
+
+        ASSERT_NE(prefabSystemComponentInterface, nullptr);
+
+        TemplateReference templateRef = prefabSystemComponentInterface->FindTemplate(g_globalTemplateId);
+
+        EXPECT_TRUE(templateRef);
+    }
+
+    TEST_F(PrefabScriptingTest, PrefabScripting_CreatePrefab_NoPath)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        AZ_TEST_START_TRACE_SUPPRESSION;
+        sc.Execute(R"LUA(
+            my_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            entities = vector_EntityId()
+            template_id = PrefabSystemScriptingBus.Broadcast.CreatePrefab(entities, "")
+            )LUA");
+        /*
+        error: PrefabSystemComponent::CreateTemplateFromInstance - Attempted to create a prefab template from an instance without a source file path. Unable to proceed.
+        error: Failed to create a Template associated with file path  during CreatePrefab.
+        error: Failed to create prefab
+         */
+        AZ_TEST_STOP_TRACE_SUPPRESSION(3);
+    }
+
+    TEST_F(PrefabScriptingTest, PrefabScripting_SaveToString)
+    {
+        AZ::ScriptContext sc;
+        auto behaviorContext = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->GetBehaviorContext();
+        
+        sc.BindTo(behaviorContext);
+        sc.Execute(R"LUA(
+            my_id = EntityUtilityBus.Broadcast.CreateEditorReadyEntity("test")
+            entities = vector_EntityId()
+            entities:push_back(my_id)
+            template_id = PrefabSystemScriptingBus.Broadcast.CreatePrefab(entities, "test.prefab")
+            my_result = PrefabLoaderScriptingBus.Broadcast.SaveTemplateToString(template_id)
+
+            if my_result:IsSuccess() then
+                g_globalPrefabString = my_result:GetValue()
+            end
+            )LUA");
+        
+        auto prefabSystemComponentInterface = AZ::Interface<PrefabSystemComponentInterface>::Get();
+        prefabSystemComponentInterface->RemoveAllTemplates();
+
+        EXPECT_STRNE(g_globalPrefabString.c_str(), "");
+        TemplateId templateFromString = AZ::Interface<PrefabLoaderInterface>::Get()->LoadTemplateFromString(g_globalPrefabString);
+
+        EXPECT_NE(templateFromString, InvalidTemplateId);
+
+        // Create another entity for comparison purposes
+        AZ::EntityId entityId;
+        AzToolsFramework::EntityUtilityBus::BroadcastResult(
+            entityId, &AzToolsFramework::EntityUtilityBus::Events::CreateEditorReadyEntity, "test");
+
+        AZ::Entity* testEntity = AZ::Interface<AZ::ComponentApplicationRequests>::Get()->FindEntity(entityId);
+
+        // Instantiate the prefab we saved
+        AZStd::unique_ptr<Instance> instance = prefabSystemComponentInterface->InstantiatePrefab(templateFromString);
+
+        EXPECT_NE(instance, nullptr);
+
+        AZStd::vector<const AZ::Entity*> loadedEntities;
+
+        // Get the entities from the instance
+        instance->GetConstEntities(
+            [&loadedEntities](const AZ::Entity& entity)
+            {
+                loadedEntities.push_back(&entity);
+                return true;
+            });
+
+        // Make sure the instance has an entity with the same number of components as our test entity
+        EXPECT_EQ(loadedEntities.size(), 1);
+        EXPECT_EQ(loadedEntities[0]->GetComponents().size(), testEntity->GetComponents().size());
+
+        g_globalPrefabString.set_capacity(0); // Free all memory
+    }
+    
+}

Code/Framework/AzToolsFramework/Tests/Prefab/ProceduralPrefabAssetTests.cpp

@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AzToolsFramework/ToolsComponents/TransformComponent.h>
+#include <Entity/EntityUtilityComponent.h>
+
+#include <Prefab/PrefabTestComponent.h>
+#include <Prefab/PrefabTestDomUtils.h>
+#include <Prefab/PrefabTestFixture.h>
+#include <Prefab/Procedural/ProceduralPrefabAsset.h>
+#include <AzCore/Serialization/Json/RegistrationContext.h>
+
+namespace UnitTest
+{
+    class ProceduralPrefabAssetTest
+        : public PrefabTestFixture
+    {
+        void SetUpEditorFixtureImpl() override
+        {
+            AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
+            ASSERT_NE(componentApplicationRequests, nullptr);
+
+            auto* behaviorContext = componentApplicationRequests->GetBehaviorContext();
+            ASSERT_NE(behaviorContext, nullptr);
+
+            auto* jsonRegistrationContext = componentApplicationRequests->GetJsonRegistrationContext();
+            ASSERT_NE(jsonRegistrationContext, nullptr);
+
+            auto* serializeContext = componentApplicationRequests->GetSerializeContext();
+            ASSERT_NE(serializeContext, nullptr);
+
+            AZ::Prefab::ProceduralPrefabAsset::Reflect(serializeContext);
+            AZ::Prefab::ProceduralPrefabAsset::Reflect(behaviorContext);
+            AZ::Prefab::ProceduralPrefabAsset::Reflect(jsonRegistrationContext);
+        }
+
+        void TearDownEditorFixtureImpl() override
+        {
+            AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
+            componentApplicationRequests->GetJsonRegistrationContext()->EnableRemoveReflection();
+            AZ::Prefab::ProceduralPrefabAsset::Reflect(componentApplicationRequests->GetJsonRegistrationContext());
+        }
+    };
+
+    TEST_F(ProceduralPrefabAssetTest, ReflectContext_AccessMethods_Works)
+    {
+        AZ::ComponentApplicationRequests* componentApplicationRequests = AZ::Interface<AZ::ComponentApplicationRequests>::Get();
+
+        auto* serializeContext = componentApplicationRequests->GetSerializeContext();
+        EXPECT_TRUE(!serializeContext->CreateAny(azrtti_typeid<AZ::Prefab::ProceduralPrefabAsset>()).empty());
+        EXPECT_TRUE(!serializeContext->CreateAny(azrtti_typeid<AZ::Prefab::PrefabDomData>()).empty());
+
+        auto* jsonRegistrationContext = componentApplicationRequests->GetJsonRegistrationContext();
+        EXPECT_TRUE(jsonRegistrationContext->GetSerializerForSerializerType(azrtti_typeid<AZ::Prefab::PrefabDomDataJsonSerializer>()));
+    }
+
+    TEST_F(ProceduralPrefabAssetTest, ProceduralPrefabAsset_AccessMethods_Works)
+    {
+        const auto templateId = TemplateId(1);
+        const auto prefabString = "fake.prefab";
+
+        AZ::Prefab::ProceduralPrefabAsset asset{};
+        asset.SetTemplateId(templateId);
+        EXPECT_EQ(asset.GetTemplateId(), templateId);
+
+        asset.SetTemplateName(prefabString);
+        EXPECT_EQ(asset.GetTemplateName(), prefabString);
+    }
+
+    TEST_F(ProceduralPrefabAssetTest, PrefabDomData_AccessMethods_Works)
+    {
+        AzToolsFramework::Prefab::PrefabDom dom;
+        dom.SetObject();
+        dom.AddMember("boolValue", true, dom.GetAllocator());
+
+        AZ::Prefab::PrefabDomData prefabDomData;
+        prefabDomData.CopyValue(dom);
+
+        const AzToolsFramework::Prefab::PrefabDom& result = prefabDomData.GetValue();
+        EXPECT_TRUE(result.HasMember("boolValue"));
+        EXPECT_TRUE(result.FindMember("boolValue")->value.GetBool());
+    }
+
+    TEST_F(ProceduralPrefabAssetTest, PrefabDomDataJsonSerializer_Load_Works)
+    {
+        AZ::Prefab::PrefabDomData prefabDomData;
+
+        AzToolsFramework::Prefab::PrefabDom dom;
+        dom.SetObject();
+        dom.AddMember("member", "value", dom.GetAllocator());
+
+        AZ::Prefab::PrefabDomDataJsonSerializer prefabDomDataJsonSerializer;
+        AZ::JsonDeserializerSettings settings;
+        settings.m_reporting = [](auto, auto, auto)
+        {
+            AZ::JsonSerializationResult::ResultCode result(AZ::JsonSerializationResult::Tasks::ReadField);
+            return result;
+        };
+        AZ::JsonDeserializerContext context{ settings };
+
+        auto result = prefabDomDataJsonSerializer.Load(&prefabDomData, azrtti_typeid(prefabDomData), dom, context);
+        EXPECT_EQ(result.GetResultCode().GetOutcome(), AZ::JsonSerializationResult::Outcomes::DefaultsUsed);
+        EXPECT_TRUE(prefabDomData.GetValue().HasMember("member"));
+        EXPECT_STREQ(prefabDomData.GetValue().FindMember("member")->value.GetString(), "value");
+    }
+
+    TEST_F(ProceduralPrefabAssetTest, PrefabDomDataJsonSerializer_Store_Works)
+    {
+        AzToolsFramework::Prefab::PrefabDom dom;
+        dom.SetObject();
+        dom.AddMember("member", "value", dom.GetAllocator());
+
+        AZ::Prefab::PrefabDomData prefabDomData;
+        prefabDomData.CopyValue(dom);
+
+        AZ::Prefab::PrefabDomDataJsonSerializer prefabDomDataJsonSerializer;
+        AzToolsFramework::Prefab::PrefabDom outputValue;
+        AZ::JsonSerializerSettings settings;
+        settings.m_reporting = [](auto, auto, auto)
+        {
+            AZ::JsonSerializationResult::ResultCode result(AZ::JsonSerializationResult::Tasks::WriteValue);
+            return result;
+        };
+        AZ::JsonSerializerContext context{ settings, outputValue.GetAllocator() };
+        auto result = prefabDomDataJsonSerializer.Store(outputValue, &prefabDomData, nullptr, azrtti_typeid(prefabDomData), context);
+        EXPECT_EQ(result.GetResultCode().GetOutcome(), AZ::JsonSerializationResult::Outcomes::DefaultsUsed);
+        EXPECT_TRUE(outputValue.HasMember("member"));
+        EXPECT_STREQ(outputValue.FindMember("member")->value.GetString(), "value");
+    }
+}

Code/Framework/AzToolsFramework/Tests/aztoolsframeworktests_files.cmake

@@ -27,6 +27,7 @@ set(FILES
     Entity/EditorEntityHelpersTests.cpp
     Entity/EditorEntitySearchComponentTests.cpp
     Entity/EditorEntitySelectionTests.cpp
+    Entity/EntityUtilityComponentTests.cpp
     EntityIdQLabelTests.cpp
     EntityInspectorTests.cpp
     EntityOwnershipService/EntityOwnershipServiceTestFixture.cpp
@@ -91,6 +92,8 @@ set(FILES
     Prefab/SpawnableSortEntitiesTestFixture.cpp
     Prefab/SpawnableSortEntitiesTestFixture.h
     Prefab/SpawnableSortEntitiesTests.cpp
+    Prefab/PrefabScriptingTests.cpp
+    Prefab/ProceduralPrefabAssetTests.cpp
     PropertyIntCtrlCommonTests.h
     PropertyIntSliderCtrlTests.cpp
     PropertyIntSpinCtrlTests.cpp