| PortletSessionListenerManager.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.servlet;
24
25 import java.util.ArrayList;
26 import java.util.Iterator;
27 import java.util.List;
28
29 import javax.servlet.http.HttpSessionEvent;
30 import javax.servlet.http.HttpSessionListener;
31
32 /**
33 * <a href="PortletSessionListenerManager.java.html"><b><i>View Source</i></b>
34 * </a>
35 *
36 * <p>
37 * See http://support.liferay.com/browse/LEP-2299.
38 * </p>
39 *
40 * @author Olaf Fricke
41 * @author Brian Wing Shun Chan
42 *
43 */
44 public class PortletSessionListenerManager implements HttpSessionListener {
45
46 public static void addListener(HttpSessionListener listener) {
47 _listeners.add(listener);
48 }
49
50 public static void removeListener(HttpSessionListener listener) {
51 _listeners.remove(listener);
52 }
53
54 public void sessionCreated(HttpSessionEvent event) {
55 Thread currentThread = Thread.currentThread();
56
57 ClassLoader contextClassLoader = currentThread.getContextClassLoader();
58
59 try {
60 Iterator<HttpSessionListener> itr = _listeners.iterator();
61
62 while (itr.hasNext()) {
63 HttpSessionListener listener = itr.next();
64
65 ClassLoader listenerClassLoader =
66 listener.getClass().getClassLoader();
67
68 currentThread.setContextClassLoader(listenerClassLoader);
69
70 listener.sessionCreated(event);
71 }
72 }
73 finally {
74 currentThread.setContextClassLoader(contextClassLoader);
75 }
76 }
77
78 public void sessionDestroyed(HttpSessionEvent event) {
79 Iterator<HttpSessionListener> itr = _listeners.iterator();
80
81 while (itr.hasNext()) {
82 HttpSessionListener listener = itr.next();
83
84 listener.sessionDestroyed(event);
85 }
86 }
87
88 private static List<HttpSessionListener> _listeners =
89 new ArrayList<HttpSessionListener>();
90
91 }