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.model;
24  
25  import com.liferay.portal.ModelListenerException;
26  
27  /**
28   * <a href="InvokerModelListener.java.html"><b><i>View Source</i></b></a>
29   *
30   * @author Brian Wing Shun Chan
31   *
32   */
33  public class InvokerModelListener<T> implements ModelListener<T> {
34  
35      public InvokerModelListener(
36          ModelListener<T> modelListener, ClassLoader classLoader) {
37  
38          _modelListener = modelListener;
39          _classLoader = classLoader;
40      }
41  
42      public void onAfterCreate(T model) throws ModelListenerException {
43          Thread currentThread = Thread.currentThread();
44  
45          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
46  
47          try {
48              currentThread.setContextClassLoader(_classLoader);
49  
50              _modelListener.onAfterCreate(model);
51          }
52          finally {
53              currentThread.setContextClassLoader(contextClassLoader);
54          }
55      }
56  
57      public void onAfterRemove(T model) throws ModelListenerException {
58          Thread currentThread = Thread.currentThread();
59  
60          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
61  
62          try {
63              currentThread.setContextClassLoader(_classLoader);
64  
65              _modelListener.onAfterRemove(model);
66          }
67          finally {
68              currentThread.setContextClassLoader(contextClassLoader);
69          }
70      }
71  
72      public void onAfterUpdate(T model) throws ModelListenerException {
73          Thread currentThread = Thread.currentThread();
74  
75          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
76  
77          try {
78              currentThread.setContextClassLoader(_classLoader);
79  
80              _modelListener.onAfterUpdate(model);
81          }
82          finally {
83              currentThread.setContextClassLoader(contextClassLoader);
84          }
85      }
86  
87      public void onBeforeCreate(T model) throws ModelListenerException {
88          Thread currentThread = Thread.currentThread();
89  
90          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
91  
92          try {
93              currentThread.setContextClassLoader(_classLoader);
94  
95              _modelListener.onBeforeCreate(model);
96          }
97          finally {
98              currentThread.setContextClassLoader(contextClassLoader);
99          }
100     }
101 
102     public void onBeforeRemove(T model) throws ModelListenerException {
103         Thread currentThread = Thread.currentThread();
104 
105         ClassLoader contextClassLoader = currentThread.getContextClassLoader();
106 
107         try {
108             currentThread.setContextClassLoader(_classLoader);
109 
110             _modelListener.onBeforeRemove(model);
111         }
112         finally {
113             currentThread.setContextClassLoader(contextClassLoader);
114         }
115     }
116 
117     public void onBeforeUpdate(T model) throws ModelListenerException {
118         Thread currentThread = Thread.currentThread();
119 
120         ClassLoader contextClassLoader = currentThread.getContextClassLoader();
121 
122         try {
123             currentThread.setContextClassLoader(_classLoader);
124 
125             _modelListener.onBeforeUpdate(model);
126         }
127         finally {
128             currentThread.setContextClassLoader(contextClassLoader);
129         }
130     }
131 
132     private ModelListener<T> _modelListener;
133     private ClassLoader _classLoader;
134 
135 }