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    1   /*
    2    * $Id$
    3    *
    4    * Licensed to the Apache Software Foundation (ASF) under one
    5    * or more contributor license agreements.  See the NOTICE file
    6    * distributed with this work for additional information
    7    * regarding copyright ownership.  The ASF licenses this file
    8    * to you under the Apache License, Version 2.0 (the
    9    * "License"); you may not use this file except in compliance
   10    * with the License.  You may obtain a copy of the License at
   11    *
   12    *  http://www.apache.org/licenses/LICENSE-2.0
   13    *
   14    * Unless required by applicable law or agreed to in writing,
   15    * software distributed under the License is distributed on an
   16    * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   17    * KIND, either express or implied.  See the License for the
   18    * specific language governing permissions and limitations
   19    * under the License.
   20    */
   21   package org.apache.struts2.dispatcher.ng.listener;
   22   
   23   import org.apache.struts2.ServletActionContext;
   24   import org.apache.struts2.dispatcher.Dispatcher;
   25   import org.apache.struts2.dispatcher.ng.InitOperations;
   26   import org.apache.struts2.dispatcher.ng.PrepareOperations;
   27   
   28   import javax.servlet.ServletContextEvent;
   29   import javax.servlet.ServletContextListener;
   30   
   31   /**
   32    * Servlet listener for Struts.  The preferred way to use Struts is as a filter via the
   33    * {@link org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter} and its variants.  This servlet dispatcher
   34    * is only for those that really know what they are doing as it may not support every feature of Struts, particularly
   35    * static resource serving.
   36    */
   37   public class StrutsListener implements ServletContextListener {
   38       private PrepareOperations prepare;
   39   
   40       public void contextInitialized(ServletContextEvent sce) {
   41          InitOperations init = new InitOperations();
   42           try {
   43               ListenerHostConfig config = new ListenerHostConfig(sce.getServletContext());
   44               init.initLogging(config);
   45               Dispatcher dispatcher = init.initDispatcher(config);
   46               init.initStaticContentLoader(config, dispatcher);
   47   
   48               prepare = new PrepareOperations(config.getServletContext(), dispatcher);
   49           } finally {
   50               init.cleanup();
   51           }
   52       }
   53   
   54       public void contextDestroyed(ServletContextEvent sce) {
   55           prepare.cleanupDispatcher();
   56       }
   57   }

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