/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2008, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.test.cluster.web;

import javax.management.MBeanServer;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.jboss.mx.util.MBeanServerLocator;

public class CacheHelperServletContextListener implements ServletContextListener
{   
   private MBeanServer server;
   private CacheHelper helper;

   public void contextInitialized(ServletContextEvent arg0)
   {
      server = MBeanServerLocator.locateJBoss();
      if (!server.isRegistered(CacheHelper.OBJECT_NAME))
      {
         helper = new CacheHelper();
         try
         {
            server.registerMBean(helper, CacheHelper.OBJECT_NAME);
         }
         catch (Exception e)
         {
            throw new RuntimeException(e);
         }
      }
   }
   
   public void contextDestroyed(ServletContextEvent arg0)
   {
      try
      {
         if (helper != null && server.isRegistered(CacheHelper.OBJECT_NAME))
         {
            server.unregisterMBean(CacheHelper.OBJECT_NAME);
         }
      }
      catch (Exception e)
      {
         throw new RuntimeException(e);
      }
   }

}