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.bean;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  
28  /**
29   * <a href="PortalBeanLocatorUtil.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class PortalBeanLocatorUtil {
35  
36      public static BeanLocator getBeanLocator() {
37          return _beanLocator;
38      }
39  
40      public static Object locate(String name) throws BeanLocatorException {
41          if (_beanLocator == null) {
42              _log.error("BeanLocator is null");
43  
44              throw new BeanLocatorException("BeanLocator has not been set");
45          }
46          else {
47              ClassLoader contextClassLoader =
48                  Thread.currentThread().getContextClassLoader();
49  
50              ClassLoader beanClassLoader = _beanLocator.getClassLoader();
51  
52              try {
53                  if (contextClassLoader != beanClassLoader) {
54                      Thread.currentThread().setContextClassLoader(
55                          beanClassLoader);
56                  }
57  
58                  return _beanLocator.locate(name);
59              }
60              finally {
61                  if (contextClassLoader != beanClassLoader) {
62                      Thread.currentThread().setContextClassLoader(
63                          contextClassLoader);
64                  }
65              }
66          }
67      }
68  
69      public static void setBeanLocator(BeanLocator beanLocator) {
70          if (_log.isDebugEnabled()) {
71              _log.debug("Setting BeanLocator " + beanLocator.hashCode());
72          }
73  
74          _beanLocator = beanLocator;
75      }
76  
77      private static Log _log =
78          LogFactoryUtil.getLog(PortalBeanLocatorUtil.class);
79  
80      private static BeanLocator _beanLocator;
81  
82  }