jobstateexample.java

Quartz is a full-featured, open source job scheduling system that can be integrated with, or used al

/* 
 * 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.example4;

import java.util.Date;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SchedulerMetaData;
import org.quartz.SimpleTrigger;
import org.quartz.TriggerUtils;
import org.quartz.impl.StdSchedulerFactory;

/**
 * This Example will demonstrate how job parameters can be 
 * passed into jobs and how state can be maintained
 * 
 * @author Bill Kratzer
 */
public class JobStateExample {

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

        // get a "nice round" time a few seconds in the future....
        long ts = TriggerUtils.getNextGivenSecondDate(null, 10).getTime();

        // job1 will only run 5 times, every 10 seconds
        JobDetail job1 = new JobDetail("job1", "group1", ColorJob.class);
        SimpleTrigger trigger1 = new SimpleTrigger("trigger1", "group1", "job1", "group1",
                new Date(ts), null, 4, 10000);
        // pass initialization parameters into the job
        job1.getJobDataMap().put(ColorJob.FAVORITE_COLOR, "Green");
        job1.getJobDataMap().put(ColorJob.EXECUTION_COUNT, 1);
        
        // schedule the job to run
        Date scheduleTime1 = sched.scheduleJob(job1, trigger1);
        log.info(job1.getFullName() +
                " will run at: " + scheduleTime1 +  
                " and repeat: " + trigger1.getRepeatCount() + 
                " times, every " + trigger1.getRepeatInterval() / 1000 + " seconds");

        // job2 will also run 5 times, every 10 seconds
        JobDetail job2 = new JobDetail("job2", "group1", ColorJob.class);
        SimpleTrigger trigger2 = new SimpleTrigger("trigger2", "group1", "job2", "group1",
                new Date(ts + 1000), null, 4, 10000);
        // pass initialization parameters into the job
        // this job has a different favorite color!
        job2.getJobDataMap().put(ColorJob.FAVORITE_COLOR, "Red");
        job2.getJobDataMap().put(ColorJob.EXECUTION_COUNT, 1);
        
        // schedule the job to run
        Date scheduleTime2 = sched.scheduleJob(job2, trigger2);
        log.info(job1.getFullName() +
                " will run at: " + scheduleTime1 +  
                " and repeat: " + trigger1.getRepeatCount() + 
                " times, every " + trigger1.getRepeatInterval() / 1000 + " seconds");



        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 60 seconds... -------------");
        try {
            // wait five minutes to show jobs
            Thread.sleep(60L * 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 {

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

}