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