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
	}
}