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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2014 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.annotations;
20  
21  import java.util.List;
22  import org.eclipse.jetty.plus.annotation.ContainerInitializer;
23  import org.eclipse.jetty.servlet.ServletContextHandler;
24  import org.eclipse.jetty.util.component.AbstractLifeCycle;
25  import org.eclipse.jetty.util.log.Log;
26  import org.eclipse.jetty.util.log.Logger;
27  import org.eclipse.jetty.webapp.WebAppContext;
28  
29  
30  /**
31   * ServletContainerInitializersStarter
32   *
33   * Call the onStartup() method on all ServletContainerInitializers, after having 
34   * found all applicable classes (if any) to pass in as args.
35   */
36  public class ServletContainerInitializersStarter extends AbstractLifeCycle implements ServletContextHandler.ServletContainerInitializerCaller
37  {
38      private static final Logger LOG = Log.getLogger(ServletContainerInitializersStarter.class);
39      WebAppContext _context;
40      
41      /**
42       * @param context
43       */
44      public ServletContainerInitializersStarter(WebAppContext context)
45      {
46          _context = context;
47      }
48   
49     /** 
50      * Call the doStart method of the ServletContainerInitializers
51      * @see org.eclipse.jetty.util.component.AbstractLifeCycle#doStart()
52      */
53      public void doStart()
54      {
55          List<ContainerInitializer> initializers = (List<ContainerInitializer>)_context.getAttribute(AnnotationConfiguration.CONTAINER_INITIALIZERS);
56          if (initializers == null)
57              return;
58          
59          for (ContainerInitializer i : initializers)
60          {
61              try
62              {
63                  if (LOG.isDebugEnabled())
64                      LOG.debug("Calling ServletContainerInitializer "+i.getTarget().getClass().getName());
65                  i.callStartup(_context);
66              }
67              catch (Exception e)
68              {
69                  LOG.warn(e);
70                  throw new RuntimeException(e);
71              }
72          }
73      }
74      
75      
76  }