Java tutorial
/* * 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.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.getNumberOfJobsExecuted() + " jobs."); } public static void main(String[] args) throws Exception { CronTriggerExample example = new CronTriggerExample(); example.run(); } }