| PortalClassLoaderServletContextListener.java |
1 /**
2 * Copyright (c) 2000-2008 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 com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
28 import com.liferay.portal.kernel.util.PortalInitable;
29 import com.liferay.portal.kernel.util.PortalInitableUtil;
30
31 import javax.servlet.ServletContextEvent;
32 import javax.servlet.ServletContextListener;
33
34 /**
35 * <a href="PortalClassLoaderServletContextListener.java.html"><b><i>View Source
36 * </i></b></a>
37 *
38 * @author Brian Wing Shun Chan
39 *
40 */
41 public abstract class PortalClassLoaderServletContextListener
42 implements PortalInitable, ServletContextListener {
43
44 public PortalClassLoaderServletContextListener() {
45 }
46
47 public void portalInit() {
48 ClassLoader contextClassLoader =
49 Thread.currentThread().getContextClassLoader();
50
51 try {
52 Thread.currentThread().setContextClassLoader(
53 PortalClassLoaderUtil.getClassLoader());
54
55 _servletContextListener = getInstance();
56
57 _servletContextListener.contextInitialized(_event);
58 }
59 catch (Exception e) {
60 _log.error(e, e);
61 }
62 finally {
63 Thread.currentThread().setContextClassLoader(
64 contextClassLoader);
65 }
66 }
67
68 public void contextInitialized(ServletContextEvent event) {
69 _event = event;
70
71 PortalInitableUtil.init(this);
72 }
73
74 public void contextDestroyed(ServletContextEvent event) {
75 ClassLoader contextClassLoader =
76 Thread.currentThread().getContextClassLoader();
77
78 try {
79 Thread.currentThread().setContextClassLoader(
80 PortalClassLoaderUtil.getClassLoader());
81
82 _servletContextListener.contextDestroyed(event);
83 }
84 finally {
85 Thread.currentThread().setContextClassLoader(contextClassLoader);
86 }
87 }
88
89 protected abstract ServletContextListener getInstance() throws Exception;
90
91 private static Log _log =
92 LogFactoryUtil.getLog(PortalClassLoaderServletContextListener.class);
93
94 private ServletContextListener _servletContextListener;
95 private ServletContextEvent _event;
96
97 }