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.portlet;
21  
22  import com.liferay.portal.kernel.log.Log;
23  import com.liferay.portal.kernel.log.LogFactoryUtil;
24  import com.liferay.portal.util.PropsValues;
25  
26  import javax.servlet.http.HttpServletResponse;
27  
28  import org.apache.commons.pool.BasePoolableObjectFactory;
29  import org.apache.commons.pool.ObjectPool;
30  import org.apache.commons.pool.impl.StackObjectPool;
31  
32  /**
33   * <a href="RenderResponseFactory.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   *
37   */
38  public class RenderResponseFactory {
39  
40      public static RenderResponseImpl create(
41              RenderRequestImpl renderRequestImpl, HttpServletResponse response,
42              String portletName, long companyId)
43          throws Exception {
44  
45          return create(renderRequestImpl, response, portletName, companyId, 0);
46      }
47  
48      public static RenderResponseImpl create(
49              RenderRequestImpl renderRequestImpl, HttpServletResponse response,
50              String portletName, long companyId, long plid)
51          throws Exception {
52  
53          if (PropsValues.COMMONS_POOL_ENABLED) {
54              if (_log.isDebugEnabled()) {
55                  _log.debug(
56                      "Borrowing:\t" + _instance._pool.getNumIdle() + "\t" +
57                          _instance._pool.getNumActive());
58              }
59          }
60  
61          RenderResponseImpl renderResponseImpl = null;
62  
63          if (PropsValues.COMMONS_POOL_ENABLED) {
64              renderResponseImpl =
65                  (RenderResponseImpl)_instance._pool.borrowObject();
66          }
67          else {
68              renderResponseImpl = new RenderResponseImpl();
69          }
70  
71          renderResponseImpl.init(
72              renderRequestImpl, response, portletName, companyId, plid);
73  
74          return renderResponseImpl;
75      }
76  
77      public static void recycle(RenderResponseImpl renderResponseImpl)
78          throws Exception {
79  
80          if (PropsValues.COMMONS_POOL_ENABLED) {
81              if (_log.isDebugEnabled()) {
82                  _log.debug(
83                      "Recycling:\t" + _instance._pool.getNumIdle() + "\t" +
84                          _instance._pool.getNumActive());
85              }
86  
87              _instance._pool.returnObject(renderResponseImpl);
88          }
89          else if (renderResponseImpl != null) {
90              renderResponseImpl.recycle();
91          }
92      }
93  
94      private RenderResponseFactory() {
95          _pool = new StackObjectPool(new Factory());
96      }
97  
98      private static Log _log =
99           LogFactoryUtil.getLog(RenderResponseFactory.class);
100 
101     private static RenderResponseFactory _instance =
102         new RenderResponseFactory();
103 
104     private ObjectPool _pool;
105 
106     private class Factory extends BasePoolableObjectFactory {
107 
108         public Object makeObject() {
109             return new RenderResponseImpl();
110         }
111 
112         public void passivateObject(Object obj) {
113             RenderResponseImpl renderResponseImpl = (RenderResponseImpl)obj;
114 
115             renderResponseImpl.recycle();
116         }
117 
118     }
119 
120 }