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.util;
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.kernel.util.Validator;
21  
22  /**
23   * <a href="LayoutCloneFactory.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Brian Wing Shun Chan
26   */
27  public class LayoutCloneFactory {
28  
29      public static LayoutClone getInstance() {
30          if (_layoutClone == null) {
31              if (Validator.isNotNull(PropsValues.LAYOUT_CLONE_IMPL)) {
32                  if (_log.isDebugEnabled()) {
33                      _log.debug("Instantiate " + PropsValues.LAYOUT_CLONE_IMPL);
34                  }
35  
36                  ClassLoader classLoader =
37                      PortalClassLoaderUtil.getClassLoader();
38  
39                  try {
40                      _layoutClone = (LayoutClone)classLoader.loadClass(
41                          PropsValues.LAYOUT_CLONE_IMPL).newInstance();
42                  }
43                  catch (Exception e) {
44                      _log.error(e, e);
45                  }
46              }
47          }
48          else {
49              if (_log.isDebugEnabled()) {
50                  _log.debug("Return " + _layoutClone.getClass().getName());
51              }
52          }
53  
54          return _layoutClone;
55      }
56  
57      private static Log _log = LogFactoryUtil.getLog(LayoutCloneFactory.class);
58  
59      private static LayoutClone _layoutClone;
60  
61  }