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1   /*
2    * ModeShape (http://www.modeshape.org)
3    * See the COPYRIGHT.txt file distributed with this work for information
4    * regarding copyright ownership.  Some portions may be licensed
5    * to Red Hat, Inc. under one or more contributor license agreements.
6    * See the AUTHORS.txt file in the distribution for a full listing of 
7    * individual contributors. 
8    *
9    * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10   * is licensed to you under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation; either version 2.1 of
12   * the License, or (at your option) any later version.
13   *
14   * ModeShape is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17   * Lesser General Public License for more details.
18   *
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this software; if not, write to the Free
21   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23   */
24  package org.modeshape.web.jcr;
25  
26  import javax.servlet.ServletContextEvent;
27  import javax.servlet.ServletContextListener;
28  import org.modeshape.web.jcr.spi.RepositoryProvider;
29  
30  /**
31   * Servlet context listener that is responsible for {@link RepositoryFactory#initialize(javax.servlet.ServletContext)
32   * initializing} the {@link RepositoryFactory repository factory}.
33   * <p>
34   * This class is not thread safe, but in practice this does not matter as the servlet container must ensure that only a single
35   * instance of this exists per web context and that it is only called in a single-threaded manner.
36   * </p>
37   * <p>
38   * This class is not thread-safe.
39   * </p>
40   * 
41   * @see RepositoryFactory
42   */
43  public class ModeShapeJcrDeployer implements ServletContextListener {
44  
45      /**
46       * Alerts the repository factory that the web application is shutting down
47       * 
48       * @param event the servlet context event
49       * @see RepositoryFactory#shutdown()
50       * @see RepositoryProvider#shutdown()
51       */
52      public void contextDestroyed( ServletContextEvent event ) {
53          RepositoryFactory.shutdown();
54      }
55  
56      /**
57       * Initializes the repository factory
58       * 
59       * @param event the servlet context event
60       * @see RepositoryFactory#initialize(javax.servlet.ServletContext)
61       */
62      public void contextInitialized( ServletContextEvent event ) {
63          RepositoryFactory.initialize(event.getServletContext());
64      }
65  }