java-post-gcm

java-post-gcm

java-post-gcm/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+  <classpathentry kind="src" path="src/test/java" output="target/test-classes" including="**/*.java"/>
+  <classpathentry kind="src" path="src/main/java" including="**/*.java"/>
+  <classpathentry kind="output" path="target/classes"/>
+  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+  <classpathentry kind="var" path="M2_REPO/com/fasterxml/jackson/core/jackson-core/2.2.2/jackson-core-2.2.2.jar"/>
+  <classpathentry kind="var" path="M2_REPO/com/fasterxml/jackson/core/jackson-databind/2.2.2/jackson-databind-2.2.2.jar"/>
+  <classpathentry kind="var" path="M2_REPO/com/fasterxml/jackson/core/jackson-annotations/2.2.2/jackson-annotations-2.2.2.jar"/>
+  <classpathentry kind="var" path="M2_REPO/junit/junit/3.8.1/junit-3.8.1.jar"/>
+</classpath>

java-post-gcm/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.hmkcode</groupId>
+  <artifactId>java-post-gcm</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>java-post-gcm</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+	  <dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-core</artifactId>
+			<version>2.2.2</version>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>2.2.2</version>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-annotations</artifactId>
+			<version>2.2.2</version>
+		</dependency>
+	    <dependency>
+	      <groupId>junit</groupId>
+	      <artifactId>junit</artifactId>
+	      <version>3.8.1</version>
+	      <scope>test</scope>
+	    </dependency>
+  </dependencies>
+</project>

java-post-gcm/src/main/java/com/hmkcode/App.java

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+package com.hmkcode;
+
+import java.io.BufferedReader;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hmkcode.vo.Content;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Sending POST to GCM" );
+        
+        String apiKey = "AIzaSyB8azikXJKi_NjpWcVNJVO0dGFG1WuNJlg";
+        Content content = createContent();
+        
+        POST2GCM.post(apiKey, content);
+    }
+    
+    public static Content createContent(){
+		
+		Content c = new Content();
+		
+		c.addRegId("APA91bFqnQzp0z5IpXWdth1lagGQZw1PTbdBAD13c-UQ0T76BBYVsFrY96MA4SFduBW9RzDguLaad-7l4QWluQcP6zSoX1HSUaAzQYSmI93hMJQUYEdRLpBOpmAGkjckuoVFt6icRjgXKuOpqZEedWUvVsKOqRruXuAe3mDbkimcNAMpc7XMF8M");
+		c.createData("Test Title", "Test Message");
+		
+		return c;
+	}
+}

java-post-gcm/src/main/java/com/hmkcode/POST2GCM.java

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+package com.hmkcode;
+
+import java.io.BufferedReader;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hmkcode.vo.Content;
+
+public class POST2GCM {
+
+	
+	public static void post(String apiKey, Content content){
+		
+		try{
+			
+		// 1. URL
+		URL url = new URL("https://android.googleapis.com/gcm/send");
+					
+		// 2. Open connection
+		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+					
+		// 3. Specify POST method
+		conn.setRequestMethod("POST");
+		
+		// 4. Set the headers
+		conn.setRequestProperty("Content-Type", "application/json");
+		conn.setRequestProperty("Authorization", "key="+apiKey);
+		
+		conn.setDoOutput(true);
+
+			// 5. Add JSON data into POST request body 
+		
+			//`5.1 Use Jackson object mapper to convert Contnet object into JSON
+	    	ObjectMapper mapper = new ObjectMapper();
+	    	
+	    	// 5.2 Get connection output stream
+			DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
+			
+			// 5.3 Copy Content "JSON" into 
+			mapper.writeValue(wr, content);
+
+			// 5.4 Send the request
+			wr.flush();
+			
+			// 5.5 close
+			wr.close();
+			 
+			// 6. Get the response
+			int responseCode = conn.getResponseCode();
+			System.out.println("\nSending 'POST' request to URL : " + url);
+			System.out.println("Response Code : " + responseCode);
+	 
+			BufferedReader in = new BufferedReader(
+			        new InputStreamReader(conn.getInputStream()));
+			String inputLine;
+			StringBuffer response = new StringBuffer();
+	 
+			while ((inputLine = in.readLine()) != null) {
+				response.append(inputLine);
+			}
+			in.close();
+	 
+			// 7. Print result
+			System.out.println(response.toString());
+					
+			} catch (MalformedURLException e) {
+				e.printStackTrace();
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+	    }
+}
+

java-post-gcm/src/main/java/com/hmkcode/vo/Content.java

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+package com.hmkcode.vo;
+
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+public class Content implements Serializable {
+
+	
+	
+	private List<String> registration_ids;
+	private Map<String,String> data;
+	
+	
+	public void addRegId(String regId){
+		if(registration_ids == null)
+			registration_ids = new LinkedList<String>();
+		registration_ids.add(regId);
+	}
+	
+	public void createData(String title, String message){
+		if(data == null)
+			data = new HashMap<String,String>();
+	
+		data.put("title", title);
+		data.put("message", message);
+	}
+	
+	
+	public List<String> getRegistration_ids() {
+		return registration_ids;
+	}
+
+	public void setRegistration_ids(List<String> registration_ids) {
+		this.registration_ids = registration_ids;
+	}
+
+	public Map<String, String> getData() {
+		return data;
+	}
+
+	public void setData(Map<String, String> data) {
+		this.data = data;
+	}
+}

java-post-gcm/src/test/java/com/hmkcode/AppTest.java

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+package com.hmkcode;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}