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.permission;
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="PermissionsListFilterFactory.java.html"><b><i>View Source</i></b>
24   * </a>
25   *
26   * @author Brian Wing Shun Chan
27   */
28  public class PermissionsListFilterFactory {
29  
30      public static PermissionsListFilter getInstance() {
31          if (_permissionsListFilter == null) {
32              if (_log.isDebugEnabled()) {
33                  _log.debug(
34                      "Instantiate " + PropsValues.PERMISSIONS_LIST_FILTER);
35              }
36  
37              ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
38  
39              try {
40                  _permissionsListFilter =
41                      (PermissionsListFilter)classLoader.loadClass(
42                          PropsValues.PERMISSIONS_LIST_FILTER).newInstance();
43              }
44              catch (Exception e) {
45                  _log.error(e, e);
46              }
47          }
48  
49          if (_log.isDebugEnabled()) {
50              _log.debug("Return " + _permissionsListFilter.getClass().getName());
51          }
52  
53          return _permissionsListFilter;
54      }
55  
56      public static void setInstance(
57          PermissionsListFilter permissionsListFilter) {
58  
59          if (_log.isDebugEnabled()) {
60              _log.debug("Set " + permissionsListFilter.getClass().getName());
61          }
62  
63          _permissionsListFilter = permissionsListFilter;
64      }
65  
66      private static Log _log = LogFactoryUtil.getLog(
67          PermissionsListFilterFactory.class);
68  
69      private static PermissionsListFilter _permissionsListFilter;
70  
71  }