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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.StandardDeployer;
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   * OSGiDeployer
30   *
31   * Extension of standard Jetty deployer that emits OSGi EventAdmin 
32   * events whenever a webapp is deployed into OSGi via Jetty.
33   * 
34   */
35  public class OSGiDeployer extends StandardDeployer
36  {
37      
38      private ServerInstanceWrapper _server;
39  
40      /* ------------------------------------------------------------ */
41      public OSGiDeployer (ServerInstanceWrapper server)
42      {
43          _server = server; 
44      }
45      
46      
47      /* ------------------------------------------------------------ */
48      public void processBinding(Node node, App app) throws Exception
49      {
50          //TODO  how to NOT send this event if its not a webapp: 
51          //OSGi Enterprise Spec only wants an event sent if its a webapp bundle (ie not a ContextHandler)
52          if (!(app instanceof AbstractOSGiApp))
53          {
54             doProcessBinding(node,app);
55          }
56          else
57          {
58              EventSender.getInstance().send(EventSender.DEPLOYING_EVENT, ((AbstractOSGiApp)app).getBundle(), app.getContextPath());
59              try
60              {
61                  doProcessBinding(node,app);
62                  ((AbstractOSGiApp)app).registerAsOSGiService();
63                  EventSender.getInstance().send(EventSender.DEPLOYED_EVENT, ((AbstractOSGiApp)app).getBundle(), app.getContextPath());
64              }
65              catch (Exception e)
66              {
67                  EventSender.getInstance().send(EventSender.FAILED_EVENT, ((AbstractOSGiApp)app).getBundle(), app.getContextPath()); 
68                  throw e;
69              }
70          }
71      }
72      
73      
74      /* ------------------------------------------------------------ */
75      protected void doProcessBinding (Node node, App app) throws Exception
76      {
77          ClassLoader old = Thread.currentThread().getContextClassLoader();
78          Thread.currentThread().setContextClassLoader(_server.getParentClassLoaderForWebapps());
79          try
80          {
81              super.processBinding(node,app);
82          }
83          finally 
84          {
85              Thread.currentThread().setContextClassLoader(old);
86          }
87      }
88  }