listenerexample.java

Quartz 是个开源的作业调度框架

/* 
 * Copyright 2005 OpenSymphony 
 * 
 * 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.quartz.examples.example9;

import java.util.Date;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobDetail;
import org.quartz.JobListener;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SchedulerMetaData;
import org.quartz.SimpleTrigger;
import org.quartz.examples.example2.SimpleJob;
import org.quartz.impl.StdSchedulerFactory;

/**
 * Demonstrates the behavior of <code>JobListener</code>s.  In particular, 
 * this example will use a job listener to trigger another job after one
 * job succesfully executes.
 * 
 */
public class ListenerExample {

    public void run() throws Exception {
        Log log = LogFactory.getLog(ListenerExample.class);

        log.info("------- Initializing ----------------------");

		// First we must get a reference to a scheduler
		SchedulerFactory sf = new StdSchedulerFactory();
		Scheduler sched = sf.getScheduler();

		log.info("------- Initialization Complete -----------");

        log.info("------- Scheduling Jobs -------------------");

        // schedule a job to run immediately
		JobDetail job = new JobDetail("job1", "group1", SimpleJob.class);
		SimpleTrigger trigger = new SimpleTrigger("trigger1", "group1", 
				new Date(), 
				null, 
				0, 
				0);
        // Set up the listener
        JobListener listener = new Job1Listener();
        sched.addJobListener(listener);

        // make sure the listener is associated with the job
        job.addJobListener(listener.getName());		
		
		// schedule the job to run
		sched.scheduleJob(job, trigger);
		
		// All of the jobs have been added to the scheduler, but none of the jobs
		// will run until the scheduler has been started
		log.info("------- Starting Scheduler ----------------");
		sched.start();

		// wait 30 seconds:
		// note:  nothing will run
		log.info("------- Waiting 30 seconds... --------------");
		try {
			// wait 30 seconds to show jobs
			Thread.sleep(30L * 1000L); 
			// executing...
		} catch (Exception e) {
		}
		
		
		// shut down the scheduler
        log.info("------- Shutting Down ---------------------");
        sched.shutdown(true);
        log.info("------- Shutdown Complete -----------------");

        SchedulerMetaData metaData = sched.getMetaData();
        log.info("Executed " + metaData.numJobsExecuted() + " jobs.");

    }

    public static void main(String[] args) throws Exception {

    	ListenerExample example = new ListenerExample();
		example.run();
    }

}