Quartz管理类

package com.sihuatech.project.task.manager;

import java.text.ParseException;

import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;

/**
 * @Title:Quartz管理类
 *
 * @Description:
 *
 * @Copyright:
 * @author lei 2008-10-8 14:19:01
 * @version 1.00.000
 *
 */
public class QuartzManager {
    private static SchedulerFactory sf = new StdSchedulerFactory();
    private static String JOB_GROUP_NAME = "group1";
    private static String TRIGGER_GROUP_NAME = "trigger1";

    private static QuartzManager quartzManager;

    public static QuartzManager getInstance() {
        if (quartzManager == null) {
            quartzManager = new QuartzManager();
        }
        return quartzManager;
    }

    private QuartzManager() {

    }

    /**
     * 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
     *
     * @param jobName
     *            任务名
     * @param job
     *            任务
     * @param time
     *            时间设置，参考quartz说明文档
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void addJob(String jobName, Job job, String time) throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, job.getClass());// 任务名，任务组，任务执行类
        // 触发器
        CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 触发器名,触发器组
        trigger.setCronExpression(time);// 触发器时间设定
        sched.scheduleJob(jobDetail, trigger);
        // 启动
        if (!sched.isShutdown())
            sched.start();
    }

    /**
     * 添加一个定时任务
     *
     * @param jobName
     *            任务名
     * @param jobGroupName
     *            任务组名
     * @param triggerName
     *            触发器名
     * @param triggerGroupName
     *            触发器组名
     * @param job
     *            任务
     * @param time
     *            时间设置，参考quartz说明文档
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void addJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName, Job job, String time) throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        JobDetail jobDetail = new JobDetail(jobName, jobGroupName, job.getClass());// 任务名，任务组，任务执行类
        // 触发器
        CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 触发器名,触发器组
        trigger.setCronExpression(time);// 触发器时间设定
        sched.scheduleJob(jobDetail, trigger);
        if (!sched.isShutdown())
            sched.start();
    }

    /**
     * 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
     *
     * @param jobName
     * @param time
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void modifyJobTime(String jobName, String time) throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        Trigger trigger = sched.getTrigger(jobName, TRIGGER_GROUP_NAME);
        if (trigger != null) {
            CronTrigger ct = (CronTrigger) trigger;
            ct.setCronExpression(time);
            sched.resumeTrigger(jobName, TRIGGER_GROUP_NAME);
        }
    }

    /**
     * 修改一个任务的触发时间
     *
     * @param triggerName
     * @param triggerGroupName
     * @param time
     * @throws SchedulerException
     * @throws ParseException
     */
    public static void modifyJobTime(String triggerName, String triggerGroupName, String time) throws SchedulerException, ParseException {
        Scheduler sched = sf.getScheduler();
        Trigger trigger = sched.getTrigger(triggerName, triggerGroupName);
        if (trigger != null) {
            CronTrigger ct = (CronTrigger) trigger;
            // 修改时间
            ct.setCronExpression(time);
            // 重启触发器
            sched.resumeTrigger(triggerName, triggerGroupName);
        }
    }

    /**
     * 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
     *
     * @param jobName
     * @throws SchedulerException
     */
    public static void removeJob(String jobName) throws SchedulerException {
        Scheduler sched = sf.getScheduler();
        sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);// 停止触发器
        sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);// 移除触发器
        sched.deleteJob(jobName, JOB_GROUP_NAME);// 删除任务
    }

    /**
     * 移除一个任务
     *
     * @param jobName
     * @param jobGroupName
     * @param triggerName
     * @param triggerGroupName
     * @throws SchedulerException
     */
    public static void removeJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName) throws SchedulerException {
        Scheduler sched = sf.getScheduler();
        sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器
        sched.unscheduleJob(triggerName, triggerGroupName);// 移除触发器
        sched.deleteJob(jobName, jobGroupName);// 删除任务
    }
}