1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.security.permission;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
28  import com.liferay.portal.util.PropsValues;
29  
30  /**
31   * <a href="PermissionsListFilterFactory.java.html"><b><i>View Source</i></b>
32   * </a>
33   *
34   * @author Brian Wing Shun Chan
35   */
36  public class PermissionsListFilterFactory {
37  
38      public static PermissionsListFilter getInstance() {
39          if (_permissionsListFilter == null) {
40              if (_log.isDebugEnabled()) {
41                  _log.debug(
42                      "Instantiate " + PropsValues.PERMISSIONS_LIST_FILTER);
43              }
44  
45              ClassLoader classLoader = PortalClassLoaderUtil.getClassLoader();
46  
47              try {
48                  _permissionsListFilter =
49                      (PermissionsListFilter)classLoader.loadClass(
50                          PropsValues.PERMISSIONS_LIST_FILTER).newInstance();
51              }
52              catch (Exception e) {
53                  _log.error(e, e);
54              }
55          }
56  
57          if (_log.isDebugEnabled()) {
58              _log.debug("Return " + _permissionsListFilter.getClass().getName());
59          }
60  
61          return _permissionsListFilter;
62      }
63  
64      public static void setInstance(
65          PermissionsListFilter permissionsListFilter) {
66  
67          if (_log.isDebugEnabled()) {
68              _log.debug("Set " + permissionsListFilter.getClass().getName());
69          }
70  
71          _permissionsListFilter = permissionsListFilter;
72      }
73  
74      private static Log _log =
75          LogFactoryUtil.getLog(PermissionsListFilterFactory.class);
76  
77      private static PermissionsListFilter _permissionsListFilter;
78  
79  }