1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
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="ScreenNameValidatorFactory.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Brian Wing Shun Chan
26   */
27  public class ScreenNameValidatorFactory {
28  
29      public static ScreenNameValidator getInstance() {
30          if (_screenNameValidator == null) {
31              if (_log.isDebugEnabled()) {
32                  _log.debug(
33                      "Instantiate " + PropsValues.USERS_SCREEN_NAME_VALIDATOR);
34              }
35  
36              ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
37  
38              try {
39                  _screenNameValidator =
40                      (ScreenNameValidator)classLoader.loadClass(
41                          PropsValues.USERS_SCREEN_NAME_VALIDATOR).newInstance();
42              }
43              catch (Exception e) {
44                  _log.error(e, e);
45              }
46          }
47  
48          if (_log.isDebugEnabled()) {
49              _log.debug("Return " + _screenNameValidator.getClass().getName());
50          }
51  
52          return _screenNameValidator;
53      }
54  
55      public static void setInstance(ScreenNameValidator screenNameValidator) {
56          if (_log.isDebugEnabled()) {
57              _log.debug("Set " + screenNameValidator.getClass().getName());
58          }
59  
60          _screenNameValidator = screenNameValidator;
61      }
62  
63      private static Log _log = LogFactoryUtil.getLog(
64          ScreenNameValidatorFactory.class);
65  
66      private static ScreenNameValidator _screenNameValidator = null;
67  
68  }