package com.jcdm.quartz.service.impl;
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import java.util.List;
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import javax.annotation.PostConstruct;
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import org.quartz.JobDataMap;
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import org.quartz.JobKey;
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import org.quartz.Scheduler;
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import org.quartz.SchedulerException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import com.jcdm.common.constant.ScheduleConstants;
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import com.jcdm.common.exception.job.TaskException;
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import com.jcdm.quartz.domain.SysJob;
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import com.jcdm.quartz.mapper.SysJobMapper;
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import com.jcdm.quartz.service.ISysJobService;
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import com.jcdm.quartz.util.CronUtils;
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import com.jcdm.quartz.util.ScheduleUtils;
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/**
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* 定时任务调度信息 服务层
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*
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* @author jc
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*/
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@Service
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public class SysJobServiceImpl implements ISysJobService
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{
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@Autowired
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private Scheduler scheduler;
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@Autowired
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private SysJobMapper jobMapper;
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/**
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* 项目启动时，初始化定时器 主要是防止手动修改数据库导致未同步到定时任务处理（注：不能手动修改数据库ID和任务组名，否则会导致脏数据）
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*/
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@PostConstruct
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public void init() throws SchedulerException, TaskException
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{
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scheduler.clear();
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List<SysJob> jobList = jobMapper.selectJobAll();
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for (SysJob job : jobList)
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{
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ScheduleUtils.createScheduleJob(scheduler, job);
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}
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}
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/**
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* 获取quartz调度器的计划任务列表
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*
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* @param job 调度信息
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* @return
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*/
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@Override
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public List<SysJob> selectJobList(SysJob job)
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{
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return jobMapper.selectJobList(job);
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}
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/**
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* 通过调度任务ID查询调度信息
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*
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* @param jobId 调度任务ID
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* @return 调度任务对象信息
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*/
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@Override
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public SysJob selectJobById(Long jobId)
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{
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return jobMapper.selectJobById(jobId);
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}
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/**
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* 暂停任务
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int pauseJob(SysJob job) throws SchedulerException
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{
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Long jobId = job.getJobId();
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String jobGroup = job.getJobGroup();
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job.setStatus(ScheduleConstants.Status.PAUSE.getValue());
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int rows = jobMapper.updateJob(job);
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if (rows > 0)
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{
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scheduler.pauseJob(ScheduleUtils.getJobKey(jobId, jobGroup));
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}
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return rows;
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}
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/**
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* 恢复任务
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int resumeJob(SysJob job) throws SchedulerException
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{
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Long jobId = job.getJobId();
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String jobGroup = job.getJobGroup();
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job.setStatus(ScheduleConstants.Status.NORMAL.getValue());
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int rows = jobMapper.updateJob(job);
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if (rows > 0)
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{
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scheduler.resumeJob(ScheduleUtils.getJobKey(jobId, jobGroup));
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}
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return rows;
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}
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/**
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* 删除任务后，所对应的trigger也将被删除
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int deleteJob(SysJob job) throws SchedulerException
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{
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Long jobId = job.getJobId();
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String jobGroup = job.getJobGroup();
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int rows = jobMapper.deleteJobById(jobId);
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if (rows > 0)
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{
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scheduler.deleteJob(ScheduleUtils.getJobKey(jobId, jobGroup));
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}
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return rows;
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}
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/**
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* 批量删除调度信息
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*
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* @param jobIds 需要删除的任务ID
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* @return 结果
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void deleteJobByIds(Long[] jobIds) throws SchedulerException
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{
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for (Long jobId : jobIds)
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{
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SysJob job = jobMapper.selectJobById(jobId);
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deleteJob(job);
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}
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}
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/**
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* 任务调度状态修改
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int changeStatus(SysJob job) throws SchedulerException
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{
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int rows = 0;
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String status = job.getStatus();
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if (ScheduleConstants.Status.NORMAL.getValue().equals(status))
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{
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rows = resumeJob(job);
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}
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else if (ScheduleConstants.Status.PAUSE.getValue().equals(status))
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{
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rows = pauseJob(job);
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}
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return rows;
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}
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/**
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* 立即运行任务
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public boolean run(SysJob job) throws SchedulerException
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{
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boolean result = false;
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Long jobId = job.getJobId();
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String jobGroup = job.getJobGroup();
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SysJob properties = selectJobById(job.getJobId());
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// 参数
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JobDataMap dataMap = new JobDataMap();
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dataMap.put(ScheduleConstants.TASK_PROPERTIES, properties);
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JobKey jobKey = ScheduleUtils.getJobKey(jobId, jobGroup);
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if (scheduler.checkExists(jobKey))
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{
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result = true;
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scheduler.triggerJob(jobKey, dataMap);
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}
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return result;
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}
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/**
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* 新增任务
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*
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* @param job 调度信息 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int insertJob(SysJob job) throws SchedulerException, TaskException
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{
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job.setStatus(ScheduleConstants.Status.PAUSE.getValue());
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int rows = jobMapper.insertJob(job);
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if (rows > 0)
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{
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ScheduleUtils.createScheduleJob(scheduler, job);
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}
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return rows;
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}
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/**
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* 更新任务的时间表达式
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*
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* @param job 调度信息
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*/
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@Override
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@Transactional(rollbackFor = Exception.class)
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public int updateJob(SysJob job) throws SchedulerException, TaskException
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{
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SysJob properties = selectJobById(job.getJobId());
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int rows = jobMapper.updateJob(job);
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if (rows > 0)
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{
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updateSchedulerJob(job, properties.getJobGroup());
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}
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return rows;
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}
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/**
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* 更新任务
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*
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* @param job 任务对象
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* @param jobGroup 任务组名
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*/
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public void updateSchedulerJob(SysJob job, String jobGroup) throws SchedulerException, TaskException
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{
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Long jobId = job.getJobId();
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// 判断是否存在
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JobKey jobKey = ScheduleUtils.getJobKey(jobId, jobGroup);
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if (scheduler.checkExists(jobKey))
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{
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// 防止创建时存在数据问题 先移除，然后在执行创建操作
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scheduler.deleteJob(jobKey);
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}
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ScheduleUtils.createScheduleJob(scheduler, job);
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}
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/**
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* 校验cron表达式是否有效
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*
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* @param cronExpression 表达式
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* @return 结果
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*/
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@Override
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public boolean checkCronExpressionIsValid(String cronExpression)
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{
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return CronUtils.isValid(cronExpression);
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}
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}
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