content: package com.ruoyi.quartz.service.impl;
  
  import java.util.List;
  import javax.annotation.PostConstruct;
  import org.quartz.CronTrigger;
  import org.quartz.Scheduler;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import com.ruoyi.common.constant.ScheduleConstants;
  import com.ruoyi.common.support.Convert;
  import com.ruoyi.quartz.domain.SysJob;
  import com.ruoyi.quartz.mapper.SysJobMapper;
  import com.ruoyi.quartz.service.ISysJobService;
  import com.ruoyi.quartz.util.CronUtils;
  import com.ruoyi.quartz.util.ScheduleUtils;
  
  /**
   * 定时任务调度信息 服务层
   * 
   * @author ruoyi
   */
  @Service
  public class SysJobServiceImpl implements ISysJobService
  {
      @Autowired
      private Scheduler scheduler;
  
      @Autowired
      private SysJobMapper jobMapper;
  
      /**
       * 项目启动时，初始化定时器
       */
      @PostConstruct
      public void init()
      {
          List<SysJob> jobList = jobMapper.selectJobAll();
          for (SysJob job : jobList)
          {
              CronTrigger cronTrigger = ScheduleUtils.getCronTrigger(scheduler, job.getJobId());
              // 如果不存在，则创建
              if (cronTrigger == null)
              {
                  ScheduleUtils.createScheduleJob(scheduler, job);
              }
              else
              {
                  ScheduleUtils.updateScheduleJob(scheduler, job);
              }
          }
      }
  
      /**
       * 获取quartz调度器的计划任务列表
       * 
       * @param job 调度信息
       * @return
       */
      @Override
      public List<SysJob> selectJobList(SysJob job)
      {
          return jobMapper.selectJobList(job);
      }
  
      /**
       * 通过调度任务ID查询调度信息
       * 
       * @param jobId 调度任务ID
       * @return 调度任务对象信息
       */
      @Override
      public SysJob selectJobById(Long jobId)
      {
          return jobMapper.selectJobById(jobId);
      }
  
      /**
       * 暂停任务
       * 
       * @param job 调度信息
       */
      @Override
      public int pauseJob(SysJob job)
      {
          job.setStatus(ScheduleConstants.Status.PAUSE.getValue());
          int rows = jobMapper.updateJob(job);
          if (rows > 0)
          {
              ScheduleUtils.pauseJob(scheduler, job.getJobId());
          }
          return rows;
      }
  
      /**
       * 恢复任务
       * 
       * @param job 调度信息
       */
      @Override
      public int resumeJob(SysJob job)
      {
          job.setStatus(ScheduleConstants.Status.NORMAL.getValue());
          int rows = jobMapper.updateJob(job);
          if (rows > 0)
          {
              ScheduleUtils.resumeJob(scheduler, job.getJobId());
          }
          return rows;
      }
  
      /**
       * 删除任务后，所对应的trigger也将被删除
       * 
       * @param job 调度信息
       */
      @Override
      public int deleteJob(SysJob job)
      {
          int rows = jobMapper.deleteJobById(job.getJobId());
          if (rows > 0)
          {
              ScheduleUtils.deleteScheduleJob(scheduler, job.getJobId());
          }
          return rows;
      }
  
      /**
       * 批量删除调度信息
       * 
       * @param ids 需要删除的数据ID
       * @return 结果
       */
      @Override
      public void deleteJobByIds(String ids)
      {
          Long[] jobIds = Convert.toLongArray(ids);
          for (Long jobId : jobIds)
          {
              SysJob job = jobMapper.selectJobById(jobId);
              deleteJob(job);
          }
      }
  
      /**
       * 任务调度状态修改
       * 
       * @param job 调度信息
       */
      @Override
      public int changeStatus(SysJob job)
      {
          int rows = 0;
          String status = job.getStatus();
          if (ScheduleConstants.Status.NORMAL.getValue().equals(status))
          {
              rows = resumeJob(job);
          }
          else if (ScheduleConstants.Status.PAUSE.getValue().equals(status))
          {
              rows = pauseJob(job);
          }
          return rows;
      }
  
      /**
       * 立即运行任务
       * 
       * @param job 调度信息
       */
      @Override
      public int run(SysJob job)
      {
          return ScheduleUtils.run(scheduler, selectJobById(job.getJobId()));
      }
  
      /**
       * 新增任务
       * 
       * @param job 调度信息 调度信息
       */
      @Override
      public int insertJobCron(SysJob job)
      {
          job.setStatus(ScheduleConstants.Status.PAUSE.getValue());
          int rows = jobMapper.insertJob(job);
          if (rows > 0)
          {
              ScheduleUtils.createScheduleJob(scheduler, job);
          }
          return rows;
      }
  
      /**
       * 更新任务的时间表达式
       * 
       * @param job 调度信息
       */
      @Override
      public int updateJobCron(SysJob job)
      {
          int rows = jobMapper.updateJob(job);
          if (rows > 0)
          {
              ScheduleUtils.updateScheduleJob(scheduler, job);
          }
          return rows;
      }
      
      /**
       * 校验cron表达式是否有效
       * 
       * @param cronExpression 表达式
       * @return 结果
       */
      @Override
      public boolean checkCronExpressionIsValid(String cronExpression)
      {
          return CronUtils.isValid(cronExpression);
      }   
  }
  