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="ThemeDisplayFactory.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class ThemeDisplayFactory {
35  
36      public static ThemeDisplay create() throws Exception {
37          if (PropsValues.COMMONS_POOL_ENABLED) {
38              return (ThemeDisplay)_instance._pool.borrowObject();
39          }
40          else {
41              return new ThemeDisplay();
42          }
43      }
44  
45      public static void recycle(ThemeDisplay themeDisplay) throws Exception {
46          if (PropsValues.COMMONS_POOL_ENABLED) {
47              _instance._pool.returnObject(themeDisplay);
48          }
49          else if (themeDisplay != null) {
50              themeDisplay.recycle();
51          }
52      }
53  
54      private ThemeDisplayFactory() {
55          _pool = new StackObjectPool(new Factory());
56      }
57  
58      private static ThemeDisplayFactory _instance = new ThemeDisplayFactory();
59  
60      private ObjectPool _pool;
61  
62      private class Factory extends BasePoolableObjectFactory {
63  
64          public Object makeObject() {
65              return new ThemeDisplay();
66          }
67  
68          public void passivateObject(Object obj) {
69              ThemeDisplay themeDisplay = (ThemeDisplay)obj;
70  
71              themeDisplay.recycle();
72          }
73  
74      }
75  
76  }