1   /**
2    * Copyright (c) 2000-2009 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   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.theme;
21  
22  import com.liferay.portal.util.PropsValues;
23  
24  import org.apache.commons.pool.BasePoolableObjectFactory;
25  import org.apache.commons.pool.ObjectPool;
26  import org.apache.commons.pool.impl.StackObjectPool;
27  
28  /**
29   * <a href="PortletDisplayFactory.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class PortletDisplayFactory {
35  
36      public static PortletDisplay create() throws Exception {
37          if (PropsValues.COMMONS_POOL_ENABLED) {
38              return (PortletDisplay)_instance._pool.borrowObject();
39          }
40          else {
41              return new PortletDisplay();
42          }
43      }
44  
45      public static void recycle(PortletDisplay portletDisplay) throws Exception {
46          if (PropsValues.COMMONS_POOL_ENABLED) {
47              _instance._pool.returnObject(portletDisplay);
48          }
49          else if (portletDisplay != null) {
50              portletDisplay.recycle();
51          }
52      }
53  
54      private PortletDisplayFactory() {
55          _pool = new StackObjectPool(new Factory());
56      }
57  
58      private static PortletDisplayFactory _instance =
59          new PortletDisplayFactory();
60  
61      private ObjectPool _pool;
62  
63      private class Factory extends BasePoolableObjectFactory {
64  
65          public Object makeObject() {
66              return new PortletDisplay();
67          }
68  
69          public void passivateObject(Object obj) {
70              PortletDisplay portletDisplay = (PortletDisplay)obj;
71  
72              portletDisplay.recycle();
73          }
74  
75      }
76  
77  }