1 // ========================================================================
2 // Copyright 2004-2010 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.server.session;
15
16 import java.io.IOException;
17 import java.io.Serializable;
18
19 import javax.servlet.ServletException;
20 import javax.servlet.http.HttpServlet;
21 import javax.servlet.http.HttpServletRequest;
22 import javax.servlet.http.HttpServletResponse;
23 import javax.servlet.http.HttpSession;
24
25
26 /**
27 * WebAppObjectInSessionServlet
28 *
29 *
30 */
31 public class WebAppObjectInSessionServlet extends HttpServlet
32 {
33 @Override
34 protected void doGet(HttpServletRequest request, HttpServletResponse httpServletResponse) throws ServletException, IOException
35 {
36 try
37 {
38 String action = request.getParameter("action");
39 if ("set".equals(action))
40 {
41 HttpSession session = request.getSession(true);
42 session.setAttribute("staticAttribute", new TestSharedStatic());
43 // session.setAttribute("objectAttribute", new TestSharedNonStatic());
44 // The session itself is not shareable, since the implementation class
45 // refers to the session manager via the hidden field this$0, and
46 // it seems there is no way to mark the hidden field as transient.
47 // session.setAttribute("sessionAttribute", session);
48 }
49 else if ("get".equals(action))
50 {
51 HttpSession session = request.getSession(false);
52 Object staticAttribute = session.getAttribute("staticAttribute");
53 assert staticAttribute instanceof TestSharedStatic;
54 // Object objectAttribute = session.getAttribute("objectAttribute");
55 // assert objectAttribute instanceof TestSharedNonStatic;
56 // Object sessionAttribute = session.getAttribute("sessionAttribute");
57 // assert sessionAttribute instanceof HttpSession;
58 }
59 }
60 catch (Exception e)
61 {
62 e.printStackTrace();
63 }
64 }
65
66 // Non static inner classes are not shareable, because even if this class is portable,
67 // the hidden field this$0 refers to the servlet, which is a non portable class.
68 public class TestSharedNonStatic implements Serializable
69 {
70 }
71
72 // Static inner classes are shareable
73 public static class TestSharedStatic implements Serializable
74 {
75 }
76 }