Add more RPC implementation code

framework/ipc/pom.xml

@@ -22,10 +22,24 @@
   <artifactId>cloud-framework-ipc</artifactId>
   <version>4.1.0-SNAPSHOT</version>
   <dependencies>
+<!--      
   	<dependency>
   		<groupId>org.hornetq</groupId>
   		<artifactId>hornetq-core-client</artifactId>
   		<version>snap-r9548</version>
   	</dependency>
+ -->
+     <dependency>
+      <groupId>org.apache.cloudstack</groupId>
+      <artifactId>cloud-core</artifactId>
+      <version>4.1.0-SNAPSHOT</version>
+    </dependency>
+ 
+    <dependency>
+      <groupId>org.apache.cloudstack</groupId>
+      <artifactId>cloud-utils</artifactId>
+      <version>4.1.0-SNAPSHOT</version>
+    </dependency>
+  	
   </dependencies>
 </project>

framework/ipc/src/org/apache/cloudstack/framework/messaging/ComponentEndpoint.java

@@ -18,7 +18,10 @@
  */
 package org.apache.cloudstack.framework.messaging;
 
+import org.apache.log4j.Logger;
+
 public class ComponentEndpoint implements RpcServiceEndpoint, Subscriber {
+    private static final Logger s_logger = Logger.getLogger(ComponentEndpoint.class);
 	
 	private TransportEndpoint transportEndpoint;
 	private RpcProvider rpcProvider;
@@ -56,6 +59,7 @@ public class ComponentEndpoint implements RpcServiceEndpoint, Subscriber {
 		try {
 			EventDispatcher.dispatch(this, subject, senderAddress, args);
 		} catch(RuntimeException e) {
+			s_logger.error("Unhandled exception", e);
 		}
 	}
 }

framework/ipc/src/org/apache/cloudstack/framework/messaging/EventBus.java

@@ -1,19 +1,21 @@
-// Licensed to the Apache Software Foundation (ASF) under one
+/*
-// or more contributor license agreements.  See the NOTICE file
+ * Licensed to the Apache Software Foundation (ASF) under one
-// distributed with this work for additional information
+ * or more contributor license agreements.  See the NOTICE file
-// regarding copyright ownership.  The ASF licenses this file
+ * distributed with this work for additional information
-// to you under the Apache License, Version 2.0 (the
+ * regarding copyright ownership.  The ASF licenses this file
-// "License"); you may not use this file except in compliance
+ * to you under the Apache License, Version 2.0 (the
-// the License.  You may obtain a copy of the License at
+ * "License"); you may not use this file except in compliance
-//
+ * with the License.  You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
+ *
-//
+ *   http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing,
+ *
-// software distributed under the License is distributed on an
+ * Unless required by applicable law or agreed to in writing,
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * software distributed under the License is distributed on an
-// KIND, either express or implied.  See the License for the
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// specific language governing permissions and limitations
+ * KIND, either express or implied.  See the License for the
-// under the License.
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 
 package org.apache.cloudstack.framework.messaging;
 

framework/ipc/src/org/apache/cloudstack/framework/messaging/EventBusBase.java

@@ -1,19 +1,21 @@
-// Licensed to the Apache Software Foundation (ASF) under one
+/*
-// or more contributor license agreements.  See the NOTICE file
+ * Licensed to the Apache Software Foundation (ASF) under one
-// distributed with this work for additional information
+ * or more contributor license agreements.  See the NOTICE file
-// regarding copyright ownership.  The ASF licenses this file
+ * distributed with this work for additional information
-// to you under the Apache License, Version 2.0 (the
+ * regarding copyright ownership.  The ASF licenses this file
-// "License"); you may not use this file except in compliance
+ * to you under the Apache License, Version 2.0 (the
-// the License.  You may obtain a copy of the License at
+ * "License"); you may not use this file except in compliance
-//
+ * with the License.  You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
+ *
-//
+ *   http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing,
+ *
-// software distributed under the License is distributed on an
+ * Unless required by applicable law or agreed to in writing,
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * software distributed under the License is distributed on an
-// KIND, either express or implied.  See the License for the
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// specific language governing permissions and limitations
+ * KIND, either express or implied.  See the License for the
-// under the License.
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 
 package org.apache.cloudstack.framework.messaging;
 

framework/ipc/src/org/apache/cloudstack/framework/messaging/JsonMessageSerializer.java

@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cloudstack.framework.messaging;
+
+import com.google.gson.Gson;
+
+public class JsonMessageSerializer implements MessageSerializer {
+
+	// this will be injected from external to allow installation of
+	// type adapters need by upper layer applications
+	private Gson _gson;
+	
+	private OnwireClassRegistry _clzRegistry; 
+	
+	public JsonMessageSerializer() {
+	}
+	
+	public Gson getGson() {
+		return _gson;
+	}
+	
+	public void setGson(Gson gson) {
+		_gson = gson;
+	}
+	
+	public OnwireClassRegistry getOnwireClassRegistry() {
+		return _clzRegistry;
+	}
+	
+	public void setOnwireClassRegistry(OnwireClassRegistry clzRegistry) {
+		_clzRegistry = clzRegistry;
+	}
+	
+	@Override
+	public <T> String serializeTo(Class<?> clz, T object) {
+		assert(clz != null);
+		assert(object != null);
+		
+		StringBuffer sbuf = new StringBuffer();
+		
+		OnwireName onwire = clz.getAnnotation(OnwireName.class);
+		if(onwire == null)
+			throw new RuntimeException("Class " + clz.getCanonicalName() + " is not declared to be onwire");
+		
+		sbuf.append(onwire.name()).append("|");
+		sbuf.append(_gson.toJson(object));
+		
+		return sbuf.toString();
+	}
+
+	@Override
+	public <T> T serializeFrom(String message) {
+		assert(message != null);
+		int contentStartPos = message.indexOf('|');
+		if(contentStartPos < 0)
+			throw new RuntimeException("Invalid on-wire message format");
+		
+		String onwireName = message.substring(0, contentStartPos);
+		Class<?> clz = _clzRegistry.getOnwireClass(onwireName);
+		if(clz == null)
+			throw new RuntimeException("Onwire class is not registered. name: " + onwireName);
+		
+		return (T)_gson.fromJson(message.substring(contentStartPos + 1), clz);
+	}
+}

framework/ipc/src/org/apache/cloudstack/framework/messaging/OnwireClassRegistry.java

@@ -0,0 +1,164 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cloudstack.framework.messaging;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+
+import org.springframework.stereotype.Component;
+
+//
+// Finding classes in a given package code is taken and modified from 
+// Credit: http://internna.blogspot.com/2007/11/java-5-retrieving-all-classes-from.html
+//
+
+@Component
+public class OnwireClassRegistry {
+	
+	private List<String> packages = new ArrayList<String>();
+	private Map<String, Class<?>> registry =  new HashMap<String, Class<?>>();
+
+	public OnwireClassRegistry() {
+	}
+	
+	public void addPackage(String packageName) {
+		packages.add(packageName);
+	}
+	
+	public void scan() {
+		Set<Class<?>> classes = new HashSet<Class<?>>();
+		for(String pkg : packages) {
+			classes.addAll(getClasses(pkg));
+		}
+		
+		for(Class<?> clz : classes) {
+			OnwireName onwire = clz.getAnnotation(OnwireName.class);
+			assert(onwire.name() != null);
+			
+			registry.put(onwire.name(), clz);
+		}
+	}
+	
+	public Class<?> getOnwireClass(String onwireName) {
+		return registry.get(onwireName);
+	}
+	
+	static Set<Class<?>> getClasses(String packageName) {
+	   ClassLoader loader = Thread.currentThread().getContextClassLoader();
+	   return getClasses(loader, packageName);
+	}
+
+	//
+	// Following helper methods can be put in a separated helper class,
+	// will do that later
+	//
+	static Set<Class<?>> getClasses(ClassLoader loader, String packageName) {
+	   Set<Class<?>> classes = new HashSet<Class<?>>();
+	   String path = packageName.replace('.', '/');
+	   try {
+		   Enumeration<URL> resources = loader.getResources(path);
+		   if (resources != null) {
+		      while (resources.hasMoreElements()) {
+		         String filePath = resources.nextElement().getFile();
+		         // WINDOWS HACK
+		         if(filePath.indexOf("%20") > 0)
+		            filePath = filePath.replaceAll("%20", " ");
+		         if (filePath != null) {
+		            if ((filePath.indexOf("!") > 0) && (filePath.indexOf(".jar") > 0)) {
+		               String jarPath = filePath.substring(0, filePath.indexOf("!"))
+		                  .substring(filePath.indexOf(":") + 1);
+		               // WINDOWS HACK
+		               if (jarPath.indexOf(":") >= 0) jarPath = jarPath.substring(1); 
+		               classes.addAll(getFromJARFile(jarPath, path));
+		            } else {
+		               classes.addAll(getFromDirectory(new File(filePath), packageName));
+		            }
+		         }
+		      }
+		   }
+	   } catch(IOException e) {
+	   } catch(ClassNotFoundException e) {
+	   }
+	   return classes;
+	}	
+	
+	static Set<Class<?>> getFromDirectory(File directory, String packageName) throws ClassNotFoundException {
+		   Set<Class<?>> classes = new HashSet<Class<?>>();
+		   if (directory.exists()) {
+		      for (String file : directory.list()) {
+		         if (file.endsWith(".class")) {
+		            String name = packageName + '.' + stripFilenameExtension(file);
+		            try {
+			            Class<?> clazz = Class.forName(name);
+			            classes.add(clazz);
+		            } catch(ClassNotFoundException e) {
+		            } catch(Exception e) {
+	            	}
+		         } else {
+		        	 File f = new File(directory.getPath() + "/" + file);
+		        	 if(f.isDirectory()) {
+		        		 classes.addAll(getFromDirectory(f, packageName + "." + file));
+		        	 }
+		         }
+		      }
+		   }
+		   return classes;
+		}
+	
+	static Set<Class<?>> getFromJARFile(String jar, String packageName) throws IOException, ClassNotFoundException {
+	   Set<Class<?>> classes = new HashSet<Class<?>>();
+	   JarInputStream jarFile = new JarInputStream(new FileInputStream(jar));
+	   JarEntry jarEntry;
+	   do {
+	      jarEntry = jarFile.getNextJarEntry();
+	      if (jarEntry != null) {
+	         String className = jarEntry.getName();
+	         if (className.endsWith(".class")) {
+	            className = stripFilenameExtension(className);
+	            if (className.startsWith(packageName)) {
+	            	try {
+	            		Class<?> clz = Class.forName(className.replace('/', '.'));
+	            		classes.add(clz);
+	            	} catch(ClassNotFoundException e) {
+	            	} catch(NoClassDefFoundError e) {
+	            	}
+	            }
+	         }
+	      }
+	   } while (jarEntry != null);
+	   
+	   return classes;
+	}
+	
+	static String stripFilenameExtension(String file) {
+		return file.substring(0, file.lastIndexOf('.'));
+	}
+}
+

framework/ipc/src/org/apache/cloudstack/framework/messaging/OnwireName.java

@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.cloudstack.framework.messaging;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface OnwireName {
+	String name();
+}

framework/ipc/src/org/apache/cloudstack/framework/messaging/PublishScope.java

@@ -1,19 +1,21 @@
-// Licensed to the Apache Software Foundation (ASF) under one
+/*
-// or more contributor license agreements.  See the NOTICE file
+ * Licensed to the Apache Software Foundation (ASF) under one
-// distributed with this work for additional information
+ * or more contributor license agreements.  See the NOTICE file
-// regarding copyright ownership.  The ASF licenses this file
+ * distributed with this work for additional information
-// to you under the Apache License, Version 2.0 (the
+ * regarding copyright ownership.  The ASF licenses this file
-// "License"); you may not use this file except in compliance
+ * to you under the Apache License, Version 2.0 (the
-// the License.  You may obtain a copy of the License at
+ * "License"); you may not use this file except in compliance
-//
+ * with the License.  You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
+ *
-//
+ *   http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing,
+ *
-// software distributed under the License is distributed on an
+ * Unless required by applicable law or agreed to in writing,
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * software distributed under the License is distributed on an
-// KIND, either express or implied.  See the License for the
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// specific language governing permissions and limitations
+ * KIND, either express or implied.  See the License for the
-// under the License.
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 
 package org.apache.cloudstack.framework.messaging;
 

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcClientCall.java

@@ -1,27 +1,27 @@
-// Licensed to the Apache Software Foundation (ASF) under one
+/*
-// or more contributor license agreements.  See the NOTICE file
+ * Licensed to the Apache Software Foundation (ASF) under one
-// distributed with this work for additional information
+ * or more contributor license agreements.  See the NOTICE file
-// regarding copyright ownership.  The ASF licenses this file
+ * distributed with this work for additional information
-// to you under the Apache License, Version 2.0 (the
+ * regarding copyright ownership.  The ASF licenses this file
-// "License"); you may not use this file except in compliance
+ * to you under the Apache License, Version 2.0 (the
-// the License.  You may obtain a copy of the License at
+ * "License"); you may not use this file except in compliance
-//
+ * with the License.  You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
+ *
-//
+ *   http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing,
+ *
-// software distributed under the License is distributed on an
+ * Unless required by applicable law or agreed to in writing,
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * software distributed under the License is distributed on an
-// KIND, either express or implied.  See the License for the
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// specific language governing permissions and limitations
+ * KIND, either express or implied.  See the License for the
-// under the License.
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package org.apache.cloudstack.framework.messaging;
 
-import java.util.concurrent.TimeUnit;
-
 public interface RpcClientCall {
 	String getCommand();
 	RpcClientCall setCommand(String cmd);
-	RpcClientCall setTimeout(TimeUnit timeout);
+	RpcClientCall setTimeout(int timeoutMilliseconds);
 	
 	RpcClientCall setCommandArg(Object arg);
 	Object getCommandArg();
@@ -30,6 +30,7 @@ public interface RpcClientCall {
 	Object getContextParam(String key);
 	
 	<T> RpcClientCall addCallbackListener(RpcCallbackListener<T> listener);
+	RpcClientCall setOneway();
 	
 	void apply();
 	void cancel();

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcClientCallImpl.java

@@ -0,0 +1,107 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cloudstack.framework.messaging;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class RpcClientCallImpl implements RpcClientCall {
+
+	private String _command;
+	private Object _commandArg;
+	
+	private int _timeoutMilliseconds;
+	
+	private Map<String, Object> _contextParams = new HashMap<String, Object>();
+	
+	public RpcClientCallImpl() {
+	}
+	
+	@Override
+	public String getCommand() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public RpcClientCall setCommand(String cmd) {
+		_command = cmd;
+		return this;
+	}
+
+	@Override
+	public RpcClientCall setTimeout(int timeoutMilliseconds) {
+		_timeoutMilliseconds = timeoutMilliseconds;
+		return this;
+	}
+
+	@Override
+	public RpcClientCall setCommandArg(Object arg) {
+		_commandArg = arg;
+		return this;
+	}
+
+	@Override
+	public Object getCommandArg() {
+		return _commandArg;
+	}
+
+	@Override
+	public RpcClientCall setContextParam(String key, Object param) {
+		assert(key != null);
+		_contextParams.put(key, param);
+		return this;
+	}
+
+	@Override
+	public Object getContextParam(String key) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public <T> RpcClientCall addCallbackListener(RpcCallbackListener<T> listener) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public RpcClientCall setOneway() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void apply() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void cancel() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public <T> T get() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+}

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcException.java

@@ -1,19 +1,21 @@
-// Licensed to the Apache Software Foundation (ASF) under one
+/*
-// or more contributor license agreements.  See the NOTICE file
+ * Licensed to the Apache Software Foundation (ASF) under one
-// distributed with this work for additional information
+ * or more contributor license agreements.  See the NOTICE file
-// regarding copyright ownership.  The ASF licenses this file
+ * distributed with this work for additional information
-// to you under the Apache License, Version 2.0 (the
+ * regarding copyright ownership.  The ASF licenses this file
-// "License"); you may not use this file except in compliance
+ * to you under the Apache License, Version 2.0 (the
-// the License.  You may obtain a copy of the License at
+ * "License"); you may not use this file except in compliance
-//
+ * with the License.  You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
+ *
-//
+ *   http://www.apache.org/licenses/LICENSE-2.0
-// Unless required by applicable law or agreed to in writing,
+ *
-// software distributed under the License is distributed on an
+ * Unless required by applicable law or agreed to in writing,
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * software distributed under the License is distributed on an
-// KIND, either express or implied.  See the License for the
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// specific language governing permissions and limitations
+ * KIND, either express or implied.  See the License for the
-// under the License.
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package org.apache.cloudstack.framework.messaging;
 
 public class RpcException extends RuntimeException {

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcIOException.java

@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package org.apache.cloudstack.framework.messaging;
 
 public class RpcIOException extends RpcException {

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcProviderImpl.java

@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cloudstack.framework.messaging;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class RpcProviderImpl implements RpcProvider {
+	
+	private MessageSerializer _messageSerializer;
+	private List<RpcServiceEndpoint> _serviceEndpoints = new ArrayList<RpcServiceEndpoint>();
+	private TransportProvider _transportProvider;
+	
+	public RpcProviderImpl() {
+	}
+	
+	public TransportProvider getTransportProvider() {
+		return _transportProvider;
+	}
+	
+	public void setTransportProvider(TransportProvider transportProvider) {
+		_transportProvider = transportProvider;
+	}
+	
+	@Override
+	public void onTransportMessage(String senderEndpointAddress,
+		String targetEndpointAddress, String multiplexer, String message) {
+
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void setMessageSerializer(MessageSerializer messageSerializer) {
+		_messageSerializer = messageSerializer;
+	}
+
+	@Override
+	public MessageSerializer getMessageSerializer() {
+		return _messageSerializer;
+	}
+
+	@Override
+	public void registerRpcServiceEndpoint(RpcServiceEndpoint rpcEndpoint) {
+		synchronized(_serviceEndpoints) {
+			_serviceEndpoints.add(rpcEndpoint);
+		}
+	}
+
+	@Override
+	public void unregisteRpcServiceEndpoint(RpcServiceEndpoint rpcEndpoint) {
+		synchronized(_serviceEndpoints) {
+			_serviceEndpoints.remove(rpcEndpoint);
+		}
+	}
+
+	@Override
+	public RpcClientCall target(String target) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+}

framework/ipc/src/org/apache/cloudstack/framework/messaging/RpcTimeoutException.java

@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
 package org.apache.cloudstack.framework.messaging;
 
 public class RpcTimeoutException extends RpcException {