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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.osgi.boot;
20  
21  import org.eclipse.jetty.deploy.App;
22  import org.eclipse.jetty.deploy.bindings.StandardUndeployer;
23  import org.eclipse.jetty.deploy.graph.Node;
24  import org.eclipse.jetty.osgi.boot.internal.serverfactory.ServerInstanceWrapper;
25  import org.eclipse.jetty.osgi.boot.utils.EventSender;
26  
27  
28  
29  
30  /**
31   * OSGiUndeployer
32   *
33   * Extension of the Jetty Undeployer which emits OSGi EventAdmin events
34   * whenever a webapp is undeployed from Jetty.
35   * 
36   */
37  public class OSGiUndeployer extends StandardUndeployer
38  {
39      private ServerInstanceWrapper _server;
40  
41      
42      /* ------------------------------------------------------------ */
43      public OSGiUndeployer (ServerInstanceWrapper server)
44      {
45          _server = server;
46      }
47      
48      
49      /* ------------------------------------------------------------ */
50      public void processBinding(Node node, App app) throws Exception
51      {
52          EventSender.getInstance().send(EventSender.UNDEPLOYING_EVENT, ((AbstractOSGiApp)app).getBundle(), app.getContextPath());
53          ClassLoader old = Thread.currentThread().getContextClassLoader();
54          Thread.currentThread().setContextClassLoader(_server.getParentClassLoaderForWebapps());
55          try
56          {
57              super.processBinding(node,app);
58          }
59          finally 
60          {
61              Thread.currentThread().setContextClassLoader(old);
62          }
63          EventSender.getInstance().send(EventSender.UNDEPLOYED_EVENT, ((AbstractOSGiApp)app).getBundle(), app.getContextPath());
64          ((AbstractOSGiApp)app).deregisterAsOSGiService();
65      }
66  }