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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.component.html.util;
20  
21  import javax.servlet.ServletContextEvent;
22  import javax.servlet.ServletContextListener;
23  
24  import org.apache.myfaces.shared_tomahawk.config.MyfacesConfig;
25  
26  public class StreamingDestroyerListener implements ServletContextListener 
27  {
28  
29      public void contextInitialized(ServletContextEvent event)
30      {
31          //Only initialize a StreamingThreadManager if StreamingAddResource is used
32          String addResourceClass = MyfacesConfig.getAddResourceClassFromServletContext(event.getServletContext());
33          
34          if (addResourceClass != null && addResourceClass.equals(StreamingAddResource.class.getName()))
35          {
36              StreamingThreadManager manager = new StreamingThreadManager();
37              event.getServletContext().setAttribute(StreamingThreadManager.KEY,
38                      manager);
39              manager.init();
40          }
41      }
42  
43      public void contextDestroyed(ServletContextEvent event)
44      {
45          StreamingThreadManager manager = (StreamingThreadManager) event.getServletContext().getAttribute(StreamingThreadManager.KEY);
46          if (manager != null)
47          {
48              manager.destroy();
49          }
50      }
51  }