TUSCANY-2919: Start commiting contribution from Prateek Temkar for JAX-RS Support in Tuscany

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@768260 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 665 insertions, 0 deletions

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/RESTBindingForJersey.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/RESTBindingForJersey.java
new file mode 100644
index 0000000000..c25a629829
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/RESTBindingForJersey.java
@@ -0,0 +1,181 @@
+package org.apache.tuscany.sca.binding.rest;

+

+import java.lang.reflect.InvocationTargetException;

+import java.lang.reflect.Method;

+import java.util.HashMap;

+import java.util.Iterator;

+import java.util.List;

+import java.util.Map;

+import java.util.Set;

+

+import org.apache.tuscany.sca.assembly.Binding;

+import org.apache.tuscany.sca.binding.rest.provider.RESTServiceServlet;

+

+import org.apache.tuscany.sca.interfacedef.InterfaceContract;

+import org.apache.tuscany.sca.interfacedef.Operation;

+import org.apache.tuscany.sca.runtime.RuntimeComponentService;

+import org.apache.tuscany.sca.runtime.RuntimeWire;

+

+import com.sun.jersey.tuscany.common.CommonInterface;

+

+public class RESTBindingForJersey implements CommonInterface{

+

+	/**

+	 * This map will save the mappings between the serviceInterface

+	 * and the HttpServlet instance which will be passed by RESTServiceServlet  

+	 *

+	 */

+	private static HashMap<String, RESTServiceServlet> interfacenameServletMap = new HashMap<String, RESTServiceServlet>();

+

+	/**

+	 * This is used to store the contextPath for the web application.

+	 * It will be set in RESTServiceServlet

+	 * It is currently being used by org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker

+	 * 

+	 */

+	private static String contextPath;

+

+	/**

+	 * updateInterfacenameServletMap() is called from RESTServiceServlet.

+	 */

+	public static void updateInterfacenameServletMap(String interfaceName, RESTServiceServlet restServiceServlet){

+

+		//check if the class name already exists. if it does, do not add it.

+		Set set = interfacenameServletMap.entrySet();

+		Iterator hashIt = set.iterator();

+		boolean classFoundFlag = false;

+		while(hashIt.hasNext()){ 

+			Map.Entry me = (Map.Entry)hashIt.next();

+			if(interfaceName.equals( (String)me.getKey() )){

+				classFoundFlag = true;

+			}

+		}

+

+		//if it is not already in map, add it to the map

+		if(classFoundFlag == false){

+			interfacenameServletMap.put(interfaceName, restServiceServlet);

+		}

+

+	}

+

+	/**

+	 * @param clazz The class whose method has been invoked

+	 * @return restServiceServlet

+	 * Find the matching interface for the class in the hashMap and return the corresponding RESTServiceServlet instance

+	 */

+	public static RESTServiceServlet findRESTServiceServletFromClass(Class clazz){

+		RESTServiceServlet restServiceServlet = null;

+		Set set = interfacenameServletMap.entrySet();

+		Iterator hashIt = set.iterator();

+		while(hashIt.hasNext()){ 

+			Map.Entry me = (Map.Entry)hashIt.next();

+			if( (clazz.getSimpleName()).equals( (String)me.getKey() ) )

+			{

+				restServiceServlet = (RESTServiceServlet)me.getValue();

+				break;

+			}

+		}

+		return restServiceServlet;

+	}

+

+	/**

+	 * @param interfaceList This will contain the list of all the interfaces the class (which declares the method) implements

+	 * @return restServiceServlet

+	 * Go through the interfaceList array and find the matching interface in the hashMap and return the corresponding RESTServiceServlet instance

+	 */

+

+	public static RESTServiceServlet findRESTServiceServletFromInterfaceList(Class[] interfaceList){

+		RESTServiceServlet restServiceServlet = null;

+		Set set = interfacenameServletMap.entrySet();

+		Iterator hashIt = set.iterator();

+		//label the outer for loop so that when a match is found, just break out of the whole thing

+		outerForLoop:

+			for(int i=0; i<interfaceList.length; i++){

+				//if the name of the interface matches any key in the map, return the corresponding servlet

+				while(hashIt.hasNext()){ 

+					Map.Entry me = (Map.Entry)hashIt.next();

+					if( (interfaceList[i].getSimpleName()).equals( (String)me.getKey() ) )

+					{

+						restServiceServlet = (RESTServiceServlet)me.getValue();

+						break outerForLoop;

+					}

+				}

+			}

+		return restServiceServlet;

+	}

+

+

+	/**

+	 * Prateek: This class implements CommonInterface. 

+	 * com.sun.jersey.impl.model.method.dispatch.EntityParamDispatchProvider (in Jersey) 

+	 * also implements this CommonInterface.

+	 * EntityParamDispatchProvider invokes returnResult using a handle to the interface.

+	 */

+	public Object returnResult(Method meth, Object[] params) throws InvocationTargetException{

+		

+		//from the meth object, get the name of the class and then the interface

+		// look up interfacenameServletMap to get the HttpServlet instance and use the 

+		//'componentService, binding, serviceContract from there

+		Class clazz = meth.getDeclaringClass();

+

+		Class[] interfaceList = clazz.getInterfaces();

+		RESTServiceServlet restServiceServlet = findRESTServiceServletFromInterfaceList(interfaceList);

+

+		//if the SCA service interface is not a Java Interface but a Java class, then restServiceServlet above will be null

+		//In that case the map will have the mapping of the Java Class and the RESTServiceServlet instance. 

+		if(restServiceServlet == null){

+			restServiceServlet = findRESTServiceServletFromClass(clazz);

+		}

+

+		Binding binding = restServiceServlet.getBinding();

+		RuntimeComponentService componentService = restServiceServlet.getComponentService();

+		InterfaceContract serviceContract = restServiceServlet.getServiceContract();

+

+		String method = "Service." + meth.getName();

+

+		//invoke the request

+		RuntimeWire wire = componentService.getRuntimeWire(binding, serviceContract);

+		Operation restOperation = findOperation(method, serviceContract);

+

+		Object result = null;

+

+		try {

+			result = wire.invoke(restOperation, params);

+			return result;

+		} catch (InvocationTargetException e) {

+			// TODO Auto-generated catch block

+			e.printStackTrace();

+			throw e;

+		}       

+	}

+

+	private static Operation findOperation(String method,InterfaceContract serviceContract) {

+		if (method.contains(".")) {

+			method = method.substring(method.lastIndexOf(".") + 1);

+		}

+

+		List<Operation> operations = serviceContract.getInterface().getOperations();

+		//componentService.getBindingProvider(binding).getBindingInterfaceContract().getInterface().getOperations();

+

+

+		Operation result = null;

+		for (Operation o : operations) {

+			if (o.getName().equalsIgnoreCase(method)) {

+				result = o;

+				break;

+			}

+		}

+

+		return result;

+	}

+

+	public static String getContextPath() {

+		return contextPath;

+	}

+

+	public static void setContextPath(String contextPath) {

+		RESTBindingForJersey.contextPath = contextPath;

+	}

+

+}

+

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingInvoker.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingInvoker.java
new file mode 100644
index 0000000000..9b3f78133d
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingInvoker.java
@@ -0,0 +1,45 @@
+/*

+ * 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.tuscany.sca.binding.rest.provider;

+

+import org.apache.tuscany.sca.interfacedef.Operation;

+import org.apache.tuscany.sca.invocation.Invoker;

+import org.apache.tuscany.sca.invocation.Message;

+

+/**

+ * Invoker for the REST Binding

+ * 

+ * @version $Rev: 665897 $ $Date: 2008-06-09 22:31:03 +0100 (Mon, 09 Jun 2008) $

+ */

+public class RESTBindingInvoker implements Invoker {

+    Operation operation;

+    String uri;

+

+    public RESTBindingInvoker(Operation operation, String uri) {

+        this.operation = operation;

+        this.uri = uri;        

+    }

+    

+    public Message invoke(Message msg) {

+        // TODO Auto-generated method stub

+        return null;

+    }

+

+}

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingProviderFactory.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingProviderFactory.java
new file mode 100644
index 0000000000..cf6b51e5bf
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTBindingProviderFactory.java
@@ -0,0 +1,64 @@
+/*

+ * 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.tuscany.sca.binding.rest.provider;

+

+import org.apache.tuscany.sca.binding.rest.RESTBinding;

+import org.apache.tuscany.sca.core.ExtensionPointRegistry;

+import org.apache.tuscany.sca.host.http.ServletHost;

+import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint;

+import org.apache.tuscany.sca.provider.BindingProviderFactory;

+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;

+import org.apache.tuscany.sca.provider.ServiceBindingProvider;

+import org.apache.tuscany.sca.runtime.RuntimeComponent;

+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;

+import org.apache.tuscany.sca.runtime.RuntimeComponentService;

+

+/**

+ * REST Provider Factory

+ * 

+ * @version $Rev: 665897 $ $Date: 2008-06-09 22:31:03 +0100 (Mon, 09 Jun 2008) $ 

+ */

+public class RESTBindingProviderFactory implements BindingProviderFactory<RESTBinding> {

+

+    private ServletHost servletHost;

+    

+    public RESTBindingProviderFactory(ExtensionPointRegistry extensionPoints) {

+        ServletHostExtensionPoint servletHosts = extensionPoints.getExtensionPoint(ServletHostExtensionPoint.class);

+        this.servletHost = servletHosts.getServletHosts().get(0);

+    }

+    

+    public ReferenceBindingProvider createReferenceBindingProvider(RuntimeComponent component,

+                                                                   RuntimeComponentReference reference,

+                                                                   RESTBinding binding) {

+        

+        return new RESTReferenceBindingProvider(component, reference, binding);

+    }

+

+    public ServiceBindingProvider createServiceBindingProvider(RuntimeComponent component,

+                                                               RuntimeComponentService service,

+                                                               RESTBinding binding) {

+        return new RESTServiceBindingProvider(component, service, binding, servletHost);

+    }

+

+    public Class<RESTBinding> getModelType() {

+        return RESTBinding.class;

+    }

+

+}

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTReferenceBindingProvider.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTReferenceBindingProvider.java
new file mode 100644
index 0000000000..0770934769
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTReferenceBindingProvider.java
@@ -0,0 +1,70 @@
+/*

+ * 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.tuscany.sca.binding.rest.provider;

+

+import org.apache.tuscany.sca.binding.rest.RESTBinding;

+import org.apache.tuscany.sca.interfacedef.InterfaceContract;

+import org.apache.tuscany.sca.interfacedef.Operation;

+import org.apache.tuscany.sca.invocation.Invoker;

+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;

+import org.apache.tuscany.sca.runtime.RuntimeComponent;

+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;

+

+/**

+ * Implementation of the REST Binding Provider for References

+ * 

+ * @version $Rev: 665897 $ $Date: 2008-06-09 22:31:03 +0100 (Mon, 09 Jun 2008) $

+ */

+public class RESTReferenceBindingProvider implements ReferenceBindingProvider {

+

+    private RuntimeComponentReference reference;

+    private RESTBinding binding;

+    

+    public RESTReferenceBindingProvider(RuntimeComponent component,

+                                           RuntimeComponentReference reference,

+                                           RESTBinding binding) {

+           this.reference = reference;

+           this.binding = binding;

+        

+    }

+

+    public InterfaceContract getBindingInterfaceContract() {

+        return reference.getInterfaceContract();

+    }

+    

+    public Invoker createInvoker(Operation operation) {

+        return new RESTBindingInvoker(operation, binding.getURI());

+    }

+

+    public void start() {

+        // TODO Auto-generated method stub

+

+    }

+

+    public void stop() {

+        // TODO Auto-generated method stub

+

+    }

+

+    public boolean supportsOneWayInvocation() {

+        return false;

+    }

+

+}

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceBindingProvider.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceBindingProvider.java
new file mode 100644
index 0000000000..67604832fc
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceBindingProvider.java
@@ -0,0 +1,148 @@
+/*

+ * 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.tuscany.sca.binding.rest.provider;

+

+import java.net.URI;

+import java.util.ArrayList;

+import java.util.List;

+

+import org.apache.tuscany.sca.binding.rest.RESTBinding;

+import org.apache.tuscany.sca.host.http.ServletHost;

+import org.apache.tuscany.sca.interfacedef.Interface;

+import org.apache.tuscany.sca.interfacedef.InterfaceContract;

+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;

+import org.apache.tuscany.sca.provider.ServiceBindingProvider;

+import org.apache.tuscany.sca.runtime.RuntimeComponent;

+import org.apache.tuscany.sca.runtime.RuntimeComponentService;

+

+/**

+ * Implementation of the REST Binding Provider for Services

+ * 

+ * @version $Rev: 683451 $ $Date: 2008-08-07 00:59:24 +0100 (Thu, 07 Aug 2008) $

+ */

+public class RESTServiceBindingProvider implements ServiceBindingProvider {

+    

+    

+        

+    

+    private RuntimeComponent component;

+    private RuntimeComponentService service;

+    private InterfaceContract serviceContract;

+    private RESTBinding binding;

+    private ServletHost servletHost;

+    private List<String> servletMappings = new ArrayList<String>();

+

+    public RESTServiceBindingProvider(RuntimeComponent component,

+                                         RuntimeComponentService service,

+                                         RESTBinding binding,

+                                         ServletHost servletHost) {

+    	this.component = component;

+        this.service = service;

+        this.binding = binding;

+        this.servletHost = servletHost;

+        

+        //clone the service contract to avoid databinding issues

+        try {

+            this.serviceContract = (InterfaceContract)service.getInterfaceContract().clone();

+        } catch(CloneNotSupportedException e) {

+            this.serviceContract = service.getInterfaceContract();

+        }

+

+    }

+

+    public InterfaceContract getBindingInterfaceContract() {

+        return service.getInterfaceContract();

+    }

+

+    public boolean supportsOneWayInvocation() {

+        return false;

+    }

+    

+    public void start() {

+

+        // Determine the service business interface

+        Class<?> serviceInterface = getTargetJavaClass(serviceContract.getInterface());

+

+        // Create a Java proxy to the target service

+        //ProxyFactory proxyFactory = new JDKProxyFactory();

+        Object proxy = component.getComponentContext().createSelfReference(serviceInterface, service).getService();

+        //Object proxy = proxyFactory.createProxy(serviceInterface, service.getRuntimeWire(binding));

+

+        // Create and register a servlet for this service

+        RESTServiceServlet serviceServlet =

+            new RESTServiceServlet(binding, service, serviceContract, serviceInterface, proxy);

+			

+		//Prateek: to add 'rest/' before the name of the service so that it could be added to url-pattern for the filter

+//		String tempURI = binding.getURI();

+//		binding.setURI("rest" + tempURI);

+		

+        String mapping = binding.getURI();

+        if (!mapping.endsWith("/")) {

+            mapping += "/";

+        }

+        if (!mapping.endsWith("*")) {

+        	mapping += "*";

+        }

+

+        servletHost.addServletMapping(mapping, serviceServlet);

+        servletMappings.add(mapping);

+        servletHost.addServletMapping(binding.getURI(), serviceServlet);

+        servletMappings.add(binding.getURI());

+        

+        //Prateek: add /rest for reverse-compatibility

+        servletHost.addServletMapping("/rest" + mapping, serviceServlet);

+        servletMappings.add("/rest" + mapping);

+        servletHost.addServletMapping("/rest" + binding.getURI(), serviceServlet);

+        servletMappings.add("/rest" + binding.getURI());

+        

+        // Save the actual binding URI

+        binding.setURI(servletHost.getURLMapping(binding.getURI()).toString());

+

+        // Register service to scaDomain.js

+        int port;

+        URI uri = URI.create(binding.getURI());

+        port = uri.getPort();

+        if (port == -1) {

+            port = servletHost.getDefaultPort();

+        }

+     }

+

+    public void stop() {

+

+        // Remove the servlet mappings we've added

+        for (String mapping: servletMappings) {

+            servletHost.removeServletMapping(mapping);

+            

+            //Prateek: for /rest

+            servletHost.removeServletMapping("/rest" + mapping);

+        }

+

+    }

+

+    private Class<?> getTargetJavaClass(Interface targetInterface) {

+        // TODO: right now assume that the target is always a Java

+        // Implementation. Need to figure out how to generate Java

+        // Interface in cases where the target is not a Java Implementation

+        return ((JavaInterface)targetInterface).getJavaClass();

+    }

+    

+

+

+}

diff --git a/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceServlet.java b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceServlet.java
new file mode 100644
index 0000000000..6a73f55649
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/RESTServiceServlet.java
@@ -0,0 +1,138 @@
+/*

+ * 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.tuscany.sca.binding.rest.provider;

+

+import java.io.IOException;

+

+import javax.servlet.ServletConfig;

+import javax.servlet.ServletContext;

+import javax.servlet.ServletException;

+import javax.servlet.http.HttpServletRequest;

+import javax.servlet.http.HttpServletResponse;

+import javax.servlet.http.HttpServlet;

+

+import org.apache.tuscany.sca.assembly.Binding;

+import org.apache.tuscany.sca.binding.rest.RESTBindingForJersey;

+import org.apache.tuscany.sca.host.webapp.WebAppServletHost;

+import org.apache.tuscany.sca.interfacedef.InterfaceContract;

+import org.apache.tuscany.sca.runtime.RuntimeComponentService;

+

+

+import com.sun.jersey.impl.container.servlet.ServletAdaptor;

+

+import com.sun.jersey.tuscany.common.CommonDataStructures;

+import com.sun.jersey.tuscany.common.CommonInterface;

+/**

+ * Servlet that handles REST requests invoking SCA services.

+ * 

+ * There is an instance of this Servlet for each <binding.rest>

+ */

+public class RESTServiceServlet extends HttpServlet {

+    private static final long serialVersionUID = 1L;

+

+    transient Binding binding;

+    transient String serviceName;

+    transient Object serviceInstance;

+    transient RuntimeComponentService componentService;

+    transient InterfaceContract serviceContract;

+    transient Class<?> serviceInterface;

+    

+	private ServletConfig servletConfig;

+	private ServletContext servletContext;

+    

+    private static ServletAdaptor jerseyServletContainer;

+

+    public RESTServiceServlet(Binding binding,

+                                 RuntimeComponentService componentService,

+                                 InterfaceContract serviceContract,

+                                 Class<?> serviceInterface,

+                                 Object serviceInstance) {

+        this.binding = binding;

+        this.serviceName = binding.getName();

+        this.componentService = componentService;

+        this.serviceContract = serviceContract;

+        this.serviceInterface = serviceInterface;

+        this.serviceInstance = serviceInstance;

+        

+        //The interface name will be stored in a HashMap in the RESTBindingForJersey class along with a

+		//reference to this servlet

+        RESTBindingForJersey.updateInterfacenameServletMap(serviceInterface.getSimpleName(), this);

+        

+    }

+

+   

+    /* (non-Javadoc)

+     * @see javax.servlet.GenericServlet#init(javax.servlet.ServletConfig)

+     */

+    @Override

+    public void init(ServletConfig config) {

+    	try{

+			

+			servletConfig = config;	        

+	        servletContext = servletConfig.getServletContext();

+	        String contextPath = servletContext.getContextPath();

+			RESTBindingForJersey.setContextPath(contextPath);

+			

+			//The following code has been moved to the host-webapp modlue. 

+			//(org.apache.tuscany.sca.host.webapp.WebAppServletHost)

+			

+			//jerseyServletContainer.init(config);

+			

+			//Setting the reference below in CommonDataStructures for

+			//com.sun.jersey.impl.model.method.dispatch.EntityParamDispatchProvider

+			//to be able to invoke the method returnResult() method.

+			CommonInterface commonInterface = new RESTBindingForJersey();

+			CommonDataStructures.setCommonInterface(commonInterface);

+			

+		}catch(Exception e){

+			e.printStackTrace(System.out);

+		}

+    }

+

+    @Override

+    public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {

+    	try{

+    		jerseyServletContainer = WebAppServletHost.getJerseyServletContainer();

+			jerseyServletContainer.service(request, response);			

+		}catch(ServletException e){

+			e.printStackTrace(System.out);

+		}

+    }

+    

+	public Binding getBinding() {

+		return binding;

+	}

+

+

+	public RuntimeComponentService getComponentService() {

+		return componentService;

+	}

+

+

+	public InterfaceContract getServiceContract() {

+		return serviceContract;

+	}

+

+

+	public static void setJerseyServletContainer(

+			ServletAdaptor jerseyServletContainer) {

+		RESTServiceServlet.jerseyServletContainer = jerseyServletContainer;

+	}

+    

+}

diff --git a/java/sca/modules/binding-rest-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory b/java/sca/modules/binding-rest-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory
new file mode 100644
index 0000000000..4a682c1cb6
--- /dev/null
+++ b/java/sca/modules/binding-rest-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.BindingProviderFactory
@@ -0,0 +1,19 @@
+# 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. 

+

+# Implementation class for the binding extension

+org.apache.tuscany.sca.binding.rest.provider.RESTBindingProviderFactory;model=org.apache.tuscany.sca.binding.rest.RESTBinding