| BeanInterceptor.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.spring.aop;
24
25 import org.aopalliance.intercept.MethodInterceptor;
26 import org.aopalliance.intercept.MethodInvocation;
27
28 /**
29 * <a href="BeanInterceptor.java.html"><b><i>View Source</i></b></a>
30 *
31 * @author Brian Wing Shun Chan
32 *
33 */
34 public class BeanInterceptor implements MethodInterceptor {
35
36 public Object invoke(MethodInvocation invocation) throws Throwable {
37 ClassLoader contextClassLoader =
38 Thread.currentThread().getContextClassLoader();
39
40 try {
41 if ((_classLoader != null) &&
42 (contextClassLoader != _classLoader)) {
43
44 Thread.currentThread().setContextClassLoader(_classLoader);
45 }
46
47 return invocation.proceed();
48 }
49 catch (Throwable t) {
50 if (_exceptionSafe) {
51 return null;
52 }
53 else {
54 throw t;
55 }
56 }
57 finally {
58 if ((_classLoader != null) &&
59 (contextClassLoader != _classLoader)) {
60
61 Thread.currentThread().setContextClassLoader(
62 contextClassLoader);
63 }
64 }
65 }
66
67 public void setClassLoader(ClassLoader classLoader) {
68 _classLoader = classLoader;
69 }
70
71 public void setExceptionSafe(boolean exceptionSafe) {
72 _exceptionSafe = exceptionSafe;
73 }
74
75 private ClassLoader _classLoader;
76 private boolean _exceptionSafe;
77
78 }