You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
/*
|
|
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
|
|
* its licensors.
|
|
*
|
|
* For complete copyright and license terms please see the LICENSE at the root of this
|
|
* distribution (the "License"). All use of this software is governed by the License,
|
|
* or, if provided, by the license below or the license accompanying this file. Do not
|
|
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
*
|
|
*/
|
|
// Original file Copyright Crytek GMBH or its affiliates, used under license.
|
|
|
|
#ifndef CRYINCLUDE_CRYCOMMON_SERIALIZATION_INTRUSIVEFACTORY_H
|
|
#define CRYINCLUDE_CRYCOMMON_SERIALIZATION_INTRUSIVEFACTORY_H
|
|
#pragma once
|
|
|
|
#include <StlUtils.h>
|
|
|
|
template<class TBase>
|
|
class CIntrusiveFactory
|
|
{
|
|
private:
|
|
struct ICreator
|
|
{
|
|
virtual TBase* Create() const = 0;
|
|
};
|
|
|
|
public:
|
|
template<class TDerived>
|
|
struct SCreator
|
|
: ICreator
|
|
{
|
|
SCreator() { CIntrusiveFactory<TBase>::Instance().RegisterType<TDerived>(this); }
|
|
|
|
TBase* Create() const override { return new TDerived(); }
|
|
};
|
|
|
|
static CIntrusiveFactory& Instance() { static CIntrusiveFactory instance; return instance; }
|
|
|
|
TBase* Create(const char* keyType) const
|
|
{
|
|
TCreatorByType::const_iterator it = m_creators.find(keyType);
|
|
if (it == m_creators.end() || it->second == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return it->second->Create();
|
|
}
|
|
}
|
|
|
|
struct SSerializer
|
|
{
|
|
_smart_ptr<TBase>& pointer;
|
|
|
|
SSerializer(_smart_ptr<TBase>& pointer)
|
|
: pointer(pointer) {}
|
|
|
|
void Serialize(Serialization::IArchive& ar);
|
|
};
|
|
|
|
private:
|
|
template<class TDerived>
|
|
void RegisterType(ICreator* creator)
|
|
{
|
|
const char* type = TDerived::GetType();
|
|
m_creators[type] = creator;
|
|
}
|
|
|
|
typedef std::map<const char*, ICreator*, stl::less_strcmp<const char*> > TCreatorByType;
|
|
TCreatorByType m_creators;
|
|
};
|
|
|
|
template<class TBase>
|
|
void CIntrusiveFactory<TBase>::SSerializer::Serialize(Serialization::IArchive & ar)
|
|
{
|
|
string type = pointer.get() ? pointer->GetInstanceType() : "";
|
|
string oldType = type;
|
|
ar(type, "type", "Type");
|
|
if (ar.IsInput())
|
|
{
|
|
if (oldType != type)
|
|
{
|
|
pointer.reset(CIntrusiveFactory<TBase>::Instance().Create(type.c_str()));
|
|
}
|
|
}
|
|
if (pointer)
|
|
{
|
|
pointer->Serialize(ar);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
#define REGISTER_IN_INTRUSIVE_FACTORY(BaseType, DerivedType) namespace { CIntrusiveFactory<BaseType>::SCreator<DerivedType> baseType##DerivedType##_Creator; }
|
|
|
|
#endif // CRYINCLUDE_CRYCOMMON_SERIALIZATION_INTRUSIVEFACTORY_H
|