Quartz的任务的临时启动和暂停和恢复

Quartz的任务的临时启动和暂停和恢复

        在项目中需要手动启停某些服务，那么需要有一个控制这些任务的类。由于任务是有Quartz控制的，我们只需要通过Quartz的相关的API实现相关的功能即可。

package com.easyway.app.quartz.mgr;

import java.util.Date;
import java.util.List;
import java.util.Map;

import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.TriggerKey;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.matchers.GroupMatcher;

/**
 * 一个简单的quartz任务管理器
 * @author longgangbai
 *
 */
public class QuartzScheduleMgr {
    private static  Scheduler scheduler=getScheduler();
    /**
     * 创建一个调度对象
     * @return
     * @throws SchedulerException
     */
    private static Scheduler getScheduler() {
            SchedulerFactory sf = new StdSchedulerFactory();
            Scheduler scheduler=null;
            try {
                scheduler = sf.getScheduler();
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
            return scheduler;
    }
    public static Scheduler getInstanceScheduler(){
        return scheduler;
    }

    /**
     * 启动一个调度对象
     * @throws SchedulerException
     */
    public  void start() throws SchedulerException
    {
        scheduler.start();
    }

    /**
     * 检查调度是否启动
     * @return
     * @throws SchedulerException
     */
    public  boolean isStarted() throws SchedulerException
    {
        return scheduler.isStarted();
    }

    /**
     * 关闭调度信息
     * @throws SchedulerException
     */
    public  void shutdown() throws SchedulerException   {
        scheduler.shutdown();
    }
    /**
     * 添加调度的job信息
     * @param jobdetail
     * @param trigger
     * @return
     * @throws SchedulerException
     */
    public  Date scheduleJob(JobDetail jobdetail, Trigger trigger)
            throws SchedulerException{
                return scheduler.scheduleJob(jobdetail, trigger);
    }
    /**
     * 添加相关的触发器
     * @param trigger
     * @return
     * @throws SchedulerException
     */
    public  Date scheduleJob(Trigger trigger) throws SchedulerException{
        return scheduler.scheduleJob(trigger);
    }
     /**
      * 添加多个job任务
      * @param triggersAndJobs
      * @param replace
      * @throws SchedulerException
      */
     public  void scheduleJobs(Map<JobDetail, List<Trigger>> triggersAndJobs, boolean replace) throws SchedulerException
     {
        scheduler.scheduleJobs(triggersAndJobs, replace);
    }
    /**
     * 停止调度Job任务
     * @param triggerkey
     * @return
     * @throws SchedulerException
     */
    public  boolean unscheduleJob(TriggerKey triggerkey)
            throws SchedulerException{
        return scheduler.unscheduleJob(triggerkey);
    }

    /**
     * 停止调度多个触发器相关的job
     * @param list
     * @return
     * @throws SchedulerException
     */
    public  boolean unscheduleJobs(List<TriggerKey> triggerKeylist) throws SchedulerException{
        return scheduler.unscheduleJobs(triggerKeylist);
    }
    /**
     * 重新恢复触发器相关的job任务
     * @param triggerkey
     * @param trigger
     * @return
     * @throws SchedulerException
     */
    public  Date rescheduleJob(TriggerKey triggerkey, Trigger trigger)
    throws SchedulerException{
        return scheduler.rescheduleJob(triggerkey, trigger);
    }
    /**
     * 添加相关的job任务
     * @param jobdetail
     * @param flag
     * @throws SchedulerException
     */
    public  void addJob(JobDetail jobdetail, boolean flag)
            throws SchedulerException   {
        scheduler.addJob(jobdetail, flag);
    }

    /**
     * 删除相关的job任务
     * @param jobkey
     * @return
     * @throws SchedulerException
     */
    public  boolean deleteJob(JobKey jobkey) throws SchedulerException{
        return scheduler.deleteJob(jobkey);
    }

    /**
     * 删除相关的多个job任务
     * @param jobKeys
     * @return
     * @throws SchedulerException
     */
    public     boolean deleteJobs(List<JobKey> jobKeys)
    throws SchedulerException{
        return scheduler.deleteJobs(jobKeys);
    }
    /**
     *
     * @param jobkey
     * @throws SchedulerException
     */
    public  void triggerJob(JobKey jobkey) throws SchedulerException    {
        scheduler.triggerJob(jobkey);
    }
    /**
     *
     * @param jobkey
     * @param jobdatamap
     * @throws SchedulerException
     */
    public  void triggerJob(JobKey jobkey, JobDataMap jobdatamap)
            throws SchedulerException   {
        scheduler.triggerJob(jobkey, jobdatamap);
    }
    /**
     * 停止一个job任务
     * @param jobkey
     * @throws SchedulerException
     */
    public  void pauseJob(JobKey jobkey) throws SchedulerException  {
        scheduler.pauseJob(jobkey);
    }
    /**
     * 停止多个job任务
     * @param groupmatcher
     * @throws SchedulerException
     */
    public  void pauseJobs(GroupMatcher<JobKey> groupmatcher)
            throws SchedulerException   {
        scheduler.pauseJobs(groupmatcher);
    }
    /**
     * 停止使用相关的触发器
     * @param triggerkey
     * @throws SchedulerException
     */
    public  void pauseTrigger(TriggerKey triggerkey)
            throws SchedulerException   {
        scheduler.pauseTrigger(triggerkey);
    }

    public  void pauseTriggers(GroupMatcher<TriggerKey> groupmatcher)
            throws SchedulerException   {
        scheduler.pauseTriggers(groupmatcher);
    }
    /**
     * 恢复相关的job任务
     * @param jobkey
     * @throws SchedulerException
     */
    public  void resumeJob(JobKey jobkey) throws SchedulerException {
        scheduler.pauseJob(jobkey);
    }

    public  void resumeJobs(GroupMatcher<JobKey> matcher)
            throws SchedulerException   {
        scheduler.resumeJobs(matcher);
    }

    public  void resumeTrigger(TriggerKey triggerkey)
            throws SchedulerException   {
        scheduler.resumeTrigger(triggerkey);
    }

    public  void resumeTriggers(GroupMatcher<TriggerKey>  groupmatcher)
            throws SchedulerException
    {
        scheduler.resumeTriggers(groupmatcher);
    }
    /**
     * 暂停调度中所有的job任务
     * @throws SchedulerException
     */
    public  void pauseAll() throws SchedulerException
    {
        scheduler.pauseAll();
    }
    /**
     * 恢复调度中所有的job的任务
     * @throws SchedulerException
     */
    public  void resumeAll() throws SchedulerException
    {
        scheduler.resumeAll();
    }



}

创建一个Job任务：

/*
 * 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 com.easyway.app.quartz.mgr;

import java.util.Date;

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

/**
 * 一个简单的quartz调用job
 * @author longgangbai
 *
 */
public class HelloJob implements Job {

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

    public HelloJob() {
    }

    public void execute(JobExecutionContext context)
        throws JobExecutionException {
        _log.info("Hello World! - " + new Date());
    }

}

创建触发器和调用相关的Job

/*
 * 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 com.easyway.app.quartz.mgr;

import static org.quartz.DateBuilder.evenMinuteDate;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.TriggerBuilder.newTrigger;

import java.util.Date;

import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.Trigger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 一个简单的测试quartz任务管理器测试类
 * @author longgangbai
 *
 */
public class QuartzScheduleMain {


    /**
     *
     * @throws Exception
     */
    public void run() throws Exception {
        Logger log = LoggerFactory.getLogger(QuartzScheduleMain.class);

        log.info("------- Initializing ----------------------");

        // First we must get a reference to a scheduler
        //从调度管理器中获取调度对象
        Scheduler sched = QuartzScheduleMgr.getInstanceScheduler();
        log.info("------- Initialization Complete -----------");

        // computer a time that is on the next round minute
        Date runTime = evenMinuteDate(new Date());

        log.info("------- Scheduling Job  -------------------");

        // define the job and tie it to our HelloJob class
        //创建相关的job信息
        JobDetail job = newJob(HelloJob.class)
            .withIdentity("job1", "group1")
            .build();

        // Trigger the job to run on the next round minute
        //创建一个触发器的名称
        Trigger trigger = newTrigger()
            .withIdentity("trigger1", "group1")
            .startAt(runTime)
            .build();

        // Tell quartz to schedule the job using our trigger
        //设置调度相关的Job
        sched.scheduleJob(job, trigger);
        log.info(job.getKey() + " will run at: " + runTime);

        // Start up the scheduler (nothing can actually run until the
        // scheduler has been started)
        //启动调度任务
        sched.start();

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

        try {
            Thread.sleep(25L * 1000L);
            // executing...
        } catch (Exception e) {
        }
        //暂时停止Job任务开始执行
        log.info("-------pauseJob.. -------------");
        sched.pauseJob(job.getKey());

        try {
            Thread.sleep(10L * 1000L);
        } catch (Exception e) {
        }
        log.info("------- resumeJob... -------------");
        //恢复Job任务开始执行
        sched.resumeJob(job.getKey());
        try {
            Thread.sleep(10L * 1000L);
            // executing...
        } catch (Exception e) {
        }


        // wait long enough so that the scheduler as an opportunity to
        // run the job!
        log.info("------- Waiting 65 seconds... -------------");
        try {
            // wait 65 seconds to show job
            Thread.sleep(65L * 1000L);
            // executing...
        } catch (Exception e) {
        }

        // shut down the scheduler
        log.info("------- Shutting Down ---------------------");
        sched.shutdown(true);
        log.info("------- Shutdown Complete -----------------");
    }

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

        QuartzScheduleMain example = new QuartzScheduleMain();
        example.run();

    }

}