/*  * 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.example3;import java.util.Date;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.quartz.CronTrigger;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SchedulerFactory;import org.quartz.SchedulerMetaData;import org.quartz.impl.StdSchedulerFactory;/** * This Example will demonstrate all of the basics of scheduling capabilities of * Quartz using Cron Triggers. *  * @author Bill Kratzer */public class CronTriggerExample {	public void run() throws Exception {		Log log = LogFactory.getLog(CronTriggerExample.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 ----------------");		// jobs can be scheduled before sched.start() has been called		// job 1 will run every 20 seconds		JobDetail job = new JobDetail("job1", "group1", SimpleJob.class);		CronTrigger trigger = new CronTrigger("trigger1", "group1", "job1",				"group1", "0/20 * * * * ?");		sched.addJob(job, true);		Date ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 2 will run every other minute (at 15 seconds past the minute)		job = new JobDetail("job2", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger2", "group1", "job2", "group1",				"15 0/2 * * * ?");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 3 will run every other minute but only between 8am and 5pm		job = new JobDetail("job3", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger3", "group1", "job3", "group1",				"0 0/2 8-17 * * ?");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 4 will run every three minutes but only between 5pm and 11pm		job = new JobDetail("job4", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger4", "group1", "job4", "group1",				"0 0/3 17-23 * * ?");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 5 will run at 10am on the 1st and 15th days of the month		job = new JobDetail("job5", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger5", "group1", "job5", "group1",				"0 0 10am 1,15 * ?");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 6 will run every 30 seconds but only on Weekdays (Monday through		// Friday)		job = new JobDetail("job6", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger6", "group1", "job6", "group1",				"0,30 * * ? * MON-FRI");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		// job 7 will run every 30 seconds but only on Weekends (Saturday and		// Sunday)		job = new JobDetail("job7", "group1", SimpleJob.class);		trigger = new CronTrigger("trigger7", "group1", "job7", "group1",				"0,30 * * ? * SAT,SUN");		sched.addJob(job, true);		ft = sched.scheduleJob(trigger);		log.info(job.getFullName() + " has been scheduled to run at: " + ft				+ " and repeat based on expression: "				+ trigger.getCronExpression());		log.info("------- Starting Scheduler ----------------");		// All of the jobs have been added to the scheduler, but none of the		// jobs		// will run until the scheduler has been started		sched.start();		log.info("------- Started Scheduler -----------------");		log.info("------- Waiting five minutes... ------------");		try {			// wait five minutes to show jobs			Thread.sleep(300L * 1000L);			// executing...		} catch (Exception e) {		}		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 {		CronTriggerExample example = new CronTriggerExample();		example.run();	}}