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1 package com.icesoft.faces.webapp.http.servlet;
2
3 import com.icesoft.faces.webapp.http.common.Server;
4 import com.icesoft.faces.webapp.http.common.Request;
5 import com.icesoft.faces.webapp.http.common.standard.FixedXMLContentHandler;
6 import com.icesoft.faces.webapp.command.Command;
7 import com.icesoft.faces.webapp.command.SessionExpired;
8
9 import javax.faces.FacesException;
10 import javax.servlet.http.HttpServletRequest  ;
11 import javax.servlet.http.HttpServletResponse ;
12 import java.util.Map ;
13 import java.io.Writer ;
14 import java.io.IOException ;
15
16 public class ViewBoundAdaptingServlet extends BasicAdaptingServlet {
17 private final static Command SessionExpired = new SessionExpired();
18 private Map views;
19 private SessionDispatcher.Listener.Monitor sessionMonitor;
20
21 public ViewBoundAdaptingServlet(Server server, SessionDispatcher.Listener.Monitor sessionMonitor, Map views) {
22 super(server);
23 this.sessionMonitor = sessionMonitor;
24 this.views = views;
25 }
26
27 public synchronized void service(HttpServletRequest request, HttpServletResponse response) throws Exception {
28 String viewNumber = request.getParameter("viewNumber");
29 if (viewNumber == null) {
30 response.sendError(500, "Cannot match view instance. 'viewNumber' parameter is missing.");
31 } else {
32 ServletView view = (ServletView) views.get(viewNumber);
33 if (view == null) {
34 new ServletRequestResponse(request, response).respondWith(new FixedXMLContentHandler() {
36 public void writeTo(Writer writer) throws IOException {
37 SessionExpired.serializeTo(writer);
38 }
39 });
40 } else {
41 try {
42 view.updateOnXMLHttpRequest(request, response);
43 sessionMonitor.touchSession();
44 super.service(request, response);
45 } catch (FacesException e) {
46 Throwable nestedException = e.getCause();
48 if (nestedException == null || nestedException instanceof Error ) {
49 throw e;
50 } else {
51 throw (Exception ) nestedException;
52 }
53 } finally {
54 view.release();
55 }
56 }
57 }
58 }
59 }
60 |
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