/**
* Copyright 2004-2005 jManage.org
*
* Licensed 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.jmanage.webui.servlets;
import org.jmanage.core.remote.RemoteInvocation;
import org.jmanage.core.remote.InvocationResult;
import org.jmanage.core.remote.server.ServiceCallHandler;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
*
* date: Feb 24, 2005
* @author Rakesh Kalra
*/
@SuppressWarnings("serial")
public class ServiceInvokerServlet extends HttpServlet {
private static String RESPONSE_CONTENT_TYPE =
"application/x-java-serialized-object; class=org.jmanage.core.remote.InvocationResult";
/**
* Handles the HTTP <code>GET</code> method.
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
public String getServletInfo() {
return "Servlet to remotely invoke service methods";
}
protected void processRequest(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType(RESPONSE_CONTENT_TYPE);
try {
/* get the RemoteInvocation object */
ServletInputStream sis = request.getInputStream();
ObjectInputStream ois = new ObjectInputStream(sis);
RemoteInvocation invocation = (RemoteInvocation) ois.readObject();
ois.close();
/* execute the method */
InvocationResult result = ServiceCallHandler.execute(invocation);
/* write the result */
ServletOutputStream sos = response.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(sos);
oos.writeObject(result);
oos.close();
} catch (Throwable t) {
/* write the exception */
ServletOutputStream sos = response.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(sos);
oos.writeObject(new InvocationResult(t));
oos.close();
}
}
}