/*
 *  Copyright 2008 biaoping.yin
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.frameworkset.web.listener;

import java.beans.Introspector;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.frameworkset.util.ClassUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * <p>Title: ApplicationLifeListener.java</p> 
 * <p>Description: </p>
 * <p>bboss workgroup</p>
 * <p>Copyright (c) 2008</p>
 * @Date 2011-1-5
 * @author biaoping.yin
 * @version 1.0
 */
public class ApplicationLifeListener implements ServletContextListener{
/**
 * since bboss 3.6 we remove load custom jars from other directory but /WEB-INF/lib,so if 
 * you update from lower version of bboss you should copy all jars from other lib directories to 
 * /WEB-INF/lib  	
 * 
 * 	
 */
 private static Logger log = LoggerFactory.getLogger(ApplicationLifeListener.class); 
 private static Method 	baseApplicationContextShutdown;
 private static Method 	dispatchServletDestory;
 static 
 {
	 try
		{
			Class clazz = Class.forName("org.frameworkset.spi.BaseApplicationContext");
			baseApplicationContextShutdown = clazz.getMethod("shutdown");
		}
		catch(RuntimeException e)
		{
			
		}
		catch(Exception e)
		{
			
		}
		catch(Throwable e)
		{
			
		}
	 
	 try
		{
			Class clazz = Class.forName("org.frameworkset.web.servlet.DispatchServlet");
			dispatchServletDestory = clazz.getMethod("destory" );
		}
		catch(RuntimeException e)
		{
			
		}
		catch(Exception e)
		{
			
		}
		catch(Throwable e)
		{
			
		}
 }
//	static
//	{
//		try {
//			JarUtil.loadCustomJars();
//		} catch (Exception e) {
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
//	}
	public void contextDestroyed(ServletContextEvent arg0) {
		if(baseApplicationContextShutdown != null)
			try {
				baseApplicationContextShutdown.invoke(null);
			} catch (IllegalAccessException e) {
				log.warn("",e);
			} catch (IllegalArgumentException e) {
				log.warn("",e);
			} catch (InvocationTargetException e) {
				log.warn("",e);
			}
//		BaseApplicationContext.shutdown();
		ClassUtil.destroy();
//		DispatchServlet.destory();
		if(dispatchServletDestory != null)
			try {
				dispatchServletDestory.invoke(null);
			} catch (IllegalAccessException e) {
				log.warn("",e);
			} catch (IllegalArgumentException e) {
				log.warn("",e);
			} catch (InvocationTargetException e) {
				log.warn("",e);
			}
		Introspector.flushCaches();
	}
	
	
	
	
	public void contextInitialized(ServletContextEvent arg0) {
		
//		System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>public void contextInitialized(ServletContextEvent arg0) {");
	}

}
