1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portal.image;
16  
17  import com.liferay.portal.kernel.log.Log;
18  import com.liferay.portal.kernel.log.LogFactoryUtil;
19  import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
20  import com.liferay.portal.util.PropsValues;
21  
22  /**
23   * <a href="HookFactory.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Jorge Ferrer
26   */
27  public class HookFactory {
28  
29      public static Hook getInstance() {
30          if (_hook == null) {
31              if (_log.isDebugEnabled()) {
32                  _log.debug("Instantiate " + PropsValues.IMAGE_HOOK_IMPL);
33              }
34  
35              ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
36  
37              try {
38                  _hook = (Hook)classLoader.loadClass(
39                      PropsValues.IMAGE_HOOK_IMPL).newInstance();
40              }
41              catch (Exception e) {
42                  _log.error(e, e);
43              }
44          }
45  
46          if (_log.isDebugEnabled()) {
47              _log.debug("Return " + _hook.getClass().getName());
48          }
49  
50          return _hook;
51      }
52  
53      public static void setInstance(Hook hook) {
54          if (_log.isDebugEnabled()) {
55              _log.debug("Set " + hook.getClass().getName());
56          }
57  
58          _hook = hook;
59      }
60  
61      private static Log _log = LogFactoryUtil.getLog(HookFactory.class);
62  
63      private static Hook _hook;
64  
65  }