| VelocityBeanHandler.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.portal.bean;
16
17 import java.lang.Object;
18 import java.lang.reflect.InvocationHandler;
19 import java.lang.reflect.InvocationTargetException;
20 import java.lang.reflect.Method;
21
22 /**
23 * <a href="VelocityBeanHandler.java.html"><b><i>View Source</i></b></a>
24 *
25 * @author Brian Wing Shun Chan
26 */
27 public class VelocityBeanHandler implements InvocationHandler {
28
29 public VelocityBeanHandler(Object bean, ClassLoader classLoader) {
30 _bean = bean;
31 _classLoader = classLoader;
32 }
33
34 public Object invoke(Object proxy, Method method, Object[] args)
35 throws Throwable {
36
37 Thread currentThread = Thread.currentThread();
38
39 ClassLoader contextClassLoader = currentThread.getContextClassLoader();
40
41 try {
42 if ((_classLoader != null) &&
43 (contextClassLoader != _classLoader)) {
44
45 currentThread.setContextClassLoader(_classLoader);
46 }
47
48 return method.invoke(_bean, args);
49 }
50 catch (InvocationTargetException ite) {
51 return null;
52 }
53 finally {
54 if ((_classLoader != null) &&
55 (contextClassLoader != _classLoader)) {
56
57 currentThread.setContextClassLoader(contextClassLoader);
58 }
59 }
60 }
61
62 private Object _bean;
63 private ClassLoader _classLoader;
64
65 }