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/*
* 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;
}
}
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