schedulercontextlistener.java.svn-base

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package com.nsi.control.web.servlets;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;

import com.nsi.constants.AppConstants;

/**
 * @author Chris Ye, created on Oct 10, 2008
 *
 * SchedulerContextListener
 */
public class SchedulerContextListener implements ServletContextListener
{
	private static Log log = LogFactory.getLog(SchedulerContextListener.class);
	/**
	 * @see javax.servlet.ServletContextListener#contextDestroyed(javax.servlet.ServletContextEvent)
	 */
	public void contextDestroyed(ServletContextEvent servletContextEvent)
	{
		Scheduler scheduler = (Scheduler)(servletContextEvent.getServletContext().getAttribute(AppConstants.SchdulerKey));
		try
		{
			if(!scheduler.isShutdown())
			{
				scheduler.shutdown();
				log.info("scheduler stoped");
			}
		}
		catch(SchedulerException schex)
		{
			log.error("contextDestroyed() -- sched stops failed, caught SchedulerException : ", schex);
		}
	}
	/**
	 * @see javax.servlet.ServletContextListener#contextInitialized(javax.servlet.ServletContextEvent)
	 */
	public void contextInitialized(ServletContextEvent servletContextEvent)
	{
		log.info("context initialized");
	}
}