calendarexample.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.example8;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

import org.quartz.JobDetail;
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.TriggerUtils;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.calendar.AnnualCalendar;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;

/**
 * This example will demonstrate how calendars can be used 
 * to exclude periods of time when scheduling should not
 * take place.
 * 
 */
public class CalendarExample {

    public void run() throws Exception {
        final Log log = LogFactory.getLog(CalendarExample.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 -------------------");

        // Add the holiday calendar to the schedule
        AnnualCalendar holidays = new AnnualCalendar();

        // fourth of July (July 4)
        Calendar fourthOfJuly = new GregorianCalendar(2005, 6, 4);
        holidays.setDayExcluded(fourthOfJuly, true);
        // halloween (Oct 31)
        Calendar halloween = new GregorianCalendar(2005, 9, 31);
        holidays.setDayExcluded(halloween, true);
        // christmas (Dec 25)
        Calendar christmas = new GregorianCalendar(2005, 11, 25);
        holidays.setDayExcluded(christmas, true);

        // tell the schedule about our holiday calendar
        sched.addCalendar("holidays", holidays, false, false);
        

        // schedule a job to run hourly, starting on halloween
        // at 10 am
        Date runDate = TriggerUtils.getDateOf(0,0, 10, 31, 10);
		JobDetail job = new JobDetail("job1", "group1", SimpleJob.class);
		SimpleTrigger trigger = new SimpleTrigger("trigger1", "group1", 
				runDate, 
				null, 
				SimpleTrigger.REPEAT_INDEFINITELY, 
				60L * 60L * 1000L);
		// tell the trigger to obey the Holidays calendar!
		trigger.setCalendarName("holidays");
		
		// schedule the job and print the first run date
		Date firstRunTime = sched.scheduleJob(job, trigger);
		
		// print out the first execution date.
		// Note:  Since Halloween (Oct 31) is a holiday, then
		// we will not run unti the next day! (Nov 1)
		log.info(job.getFullName() +
				" will run at: " + firstRunTime +  
				" and repeat: " + trigger.getRepeatCount() + 
				" times, every " + trigger.getRepeatInterval() / 1000 + " seconds");
        
		// 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 {

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

}