1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions 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.theme;
24  
25  import com.liferay.portal.util.PropsValues;
26  
27  import org.apache.commons.pool.BasePoolableObjectFactory;
28  import org.apache.commons.pool.ObjectPool;
29  import org.apache.commons.pool.impl.StackObjectPool;
30  
31  /**
32   * <a href="PortletDisplayFactory.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Brian Wing Shun Chan
35   *
36   */
37  public class PortletDisplayFactory {
38  
39      public static PortletDisplay create() throws Exception {
40          if (PropsValues.COMMONS_POOL_ENABLED) {
41              return (PortletDisplay)_instance._pool.borrowObject();
42          }
43          else {
44              return new PortletDisplay();
45          }
46      }
47  
48      public static void recycle(PortletDisplay portletDisplay) throws Exception {
49          if (PropsValues.COMMONS_POOL_ENABLED) {
50              _instance._pool.returnObject(portletDisplay);
51          }
52          else if (portletDisplay != null) {
53              portletDisplay.recycle();
54          }
55      }
56  
57      private PortletDisplayFactory() {
58          _pool = new StackObjectPool(new Factory());
59      }
60  
61      private static PortletDisplayFactory _instance =
62          new PortletDisplayFactory();
63  
64      private ObjectPool _pool;
65  
66      private class Factory extends BasePoolableObjectFactory {
67  
68          public Object makeObject() {
69              return new PortletDisplay();
70          }
71  
72          public void passivateObject(Object obj) {
73              PortletDisplay portletDisplay = (PortletDisplay)obj;
74  
75              portletDisplay.recycle();
76          }
77  
78      }
79  
80  }