Quartz1.8.5例子

Posted 2020-06-13

/* 
 * Copyright 2005 - 2009 Terracotta, Inc. 
 * 
 * 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.example11;

import java.util.Date;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

/**
 * <p>
 * This is just a simple job that gets fired off many times by example 1
 * </p>
 * 
 * @author Bill Kratzer
 */
public class SimpleJob implements Job {

    private static Logger _log = LoggerFactory.getLogger(SimpleJob.class);

    // job parameter
    public static final String DELAY_TIME = "delay time";
    
    /**
     * Empty constructor for job initilization
     */
    public SimpleJob() {
    }

    /**
     * <p>
     * Called by the <code>{@link org.quartz.Scheduler}</code> when a
     * <code>{@link org.quartz.Trigger}</code> fires that is associated with
     * the <code>Job</code>.
     * </p>
     * 
     * @throws JobExecutionException
     *             if there is an exception while executing the job.
     */
    public void execute(JobExecutionContext context)
        throws JobExecutionException {

        // This job simply prints out its job name and the
        // date and time that it is running
        String jobName = context.getJobDetail().getFullName();
        _log.info("Executing job: " + jobName + " executing at " + new Date());
        
        // wait for a period of time
        long delayTime = 
            context.getJobDetail().getJobDataMap().getLong(DELAY_TIME);
        try {
            Thread.sleep(delayTime); 
        } catch (Exception e) {
        }        

        _log.info("Finished Executing job: " + jobName + " at " + new Date());
    }

}

 

/* 
 * Copyright 2005 - 2009 Terracotta, Inc. 
 * 
 * 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.example11;

import java.util.Date;

import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.SchedulerMetaData;
import org.quartz.SimpleTrigger;
import org.quartz.impl.StdSchedulerFactory;

import org.slf4j.LoggerFactory;
import org.slf4j.Logger;

/**
 * This example will spawn a large number of jobs to run
 * 
 * @author James House, Bill Kratzer
 */
public class LoadExample {

    private int _numberOfJobs = 500;
    
    public LoadExample(int inNumberOfJobs) {
        _numberOfJobs = inNumberOfJobs;
    }
    
    public void run() throws Exception {
        Logger log = LoggerFactory.getLogger(LoadExample.class);

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

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

        String schedId = sched.getSchedulerInstanceId();

        // schedule 500 jobs to run
        for (int count=1; count <= _numberOfJobs; count++) {
            JobDetail job = new JobDetail("job" + count, "group1",
                    SimpleJob.class);
            // tell the job to delay some small amount... to simulate work...
            long timeDelay = (long) (java.lang.Math.random() * 2500);
            job.getJobDataMap().put(SimpleJob.DELAY_TIME, timeDelay);
            // ask scheduler to re-execute this job if it was in progress when
            // the scheduler went down...
            job.setRequestsRecovery(true);
            SimpleTrigger trigger = new SimpleTrigger("trigger_" + count, "group_1");
            trigger.setStartTime(new Date(System.currentTimeMillis() + 10000L
                    + (count * 100)));
            sched.scheduleJob(job, trigger);
            if (count % 25 == 0) {
                log.info("...scheduled " + count + " jobs");
            }
        }
        
        
        log.info("------- Starting Scheduler ----------------");

        // start the schedule 
        sched.start();

        log.info("------- Started Scheduler -----------------");

        log.info("------- Waiting five minutes... -----------");

        // wait five minutes to give our jobs a chance to run
        try {
            Thread.sleep(300L * 1000L); 
        } 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.getNumberOfJobsExecuted() + " jobs.");
    }

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

        int numberOfJobs = 500;
        if (args.length == 1) {
            numberOfJobs = Integer.parseInt(args[0]);
        }
        if (args.length > 1) {
            System.out.println(
                    "Usage: java " + 
                    LoadExample.class.getName() + 
                    "[# of jobs]");
            return;
        }
        LoadExample example = new LoadExample(numberOfJobs);
        example.run();
    }

}