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.security.auth;
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="ScreenNameGeneratorFactory.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Brian Wing Shun Chan
26   */
27  public class ScreenNameGeneratorFactory {
28  
29      public static ScreenNameGenerator getInstance() {
30          if (_screenNameGenerator == null) {
31              if (_log.isDebugEnabled()) {
32                  _log.debug(
33                      "Instantiate " + PropsValues.USERS_SCREEN_NAME_GENERATOR);
34              }
35  
36              ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
37  
38              try {
39                  _screenNameGenerator =
40                      (ScreenNameGenerator)classLoader.loadClass(
41                          PropsValues.USERS_SCREEN_NAME_GENERATOR).newInstance();
42              }
43              catch (Exception e) {
44                  _log.error(e, e);
45              }
46          }
47  
48          if (_log.isDebugEnabled()) {
49              _log.debug("Return " + _screenNameGenerator.getClass().getName());
50          }
51  
52          return _screenNameGenerator;
53      }
54  
55      public static void setInstance(ScreenNameGenerator screenNameGenerator) {
56          if (_log.isDebugEnabled()) {
57              _log.debug("Set " + screenNameGenerator.getClass().getName());
58          }
59  
60          _screenNameGenerator = screenNameGenerator;
61      }
62  
63      private static Log _log = LogFactoryUtil.getLog(
64          ScreenNameGeneratorFactory.class);
65  
66      private static ScreenNameGenerator _screenNameGenerator;
67  
68  }