content: package com.jeespring.modules.job.util;
  
  import com.jeespring.common.constant.ScheduleConstants;
  import com.jeespring.common.exception.job.TaskException;
  import com.jeespring.modules.job.entity.SysJob;
  import org.quartz.CronScheduleBuilder;
  import org.quartz.CronTrigger;
  import org.quartz.JobBuilder;
  import org.quartz.JobDataMap;
  import org.quartz.JobDetail;
  import org.quartz.JobKey;
  import org.quartz.Scheduler;
  import org.quartz.SchedulerException;
  import org.quartz.TriggerBuilder;
  import org.quartz.TriggerKey;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * 定时任务工具类
   * 
   * @author JeeSpring
   *
   */
  public class ScheduleUtils
  {
      private static final Logger log = LoggerFactory.getLogger(ScheduleUtils.class);
  
      /**
       * 获取触发器key
       */
      public static TriggerKey getTriggerKey(String jobId)
      {
          return TriggerKey.triggerKey(ScheduleConstants.TASK_CLASS_NAME + jobId);
      }
  
      /**
       * 获取jobKey
       */
      public static JobKey getJobKey(String jobId)
      {
          return JobKey.jobKey(ScheduleConstants.TASK_CLASS_NAME + jobId);
      }
  
      /**
       * 获取表达式触发器
       */
      public static CronTrigger getCronTrigger(Scheduler scheduler, String jobId)
      {
          try
          {
              return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));
          }
          catch (SchedulerException e)
          {
              log.error("getCronTrigger 异常：", e);
          }
          return null;
      }
  
      /**
       * 创建定时任务
       */
      public static void createScheduleJob(Scheduler scheduler, SysJob job)
      {
          try
          {
              // 构建job信息
              JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class).withIdentity(getJobKey(job.getId())).build();
  
              // 表达式调度构建器
              CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());
              cronScheduleBuilder = handleCronScheduleMisfirePolicy(job, cronScheduleBuilder);
  
              // 按新的cronExpression表达式构建一个新的trigger
              CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(getTriggerKey(job.getId())).withSchedule(cronScheduleBuilder).build();
  
              // 放入参数，运行时的方法可以获取
              jobDetail.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, job);
  
              scheduler.scheduleJob(jobDetail, trigger);
  
              // 暂停任务
              if (job.getStatus().equals(ScheduleConstants.Status.PAUSE.getValue()))
              {
                  pauseJob(scheduler, job.getId());
              }
          }
          catch (SchedulerException e)
          {
              log.error("createScheduleJob 异常：", e);
          }
          catch (TaskException e)
          {
              log.error("createScheduleJob 异常：", e);
          }
      }
  
      /**
       * 更新定时任务
       */
      public static void updateScheduleJob(Scheduler scheduler, SysJob job)
      {
          try
          {
              TriggerKey triggerKey = getTriggerKey(job.getId());
  
              // 表达式调度构建器
              CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(job.getCronExpression());
              cronScheduleBuilder = handleCronScheduleMisfirePolicy(job, cronScheduleBuilder);
  
              CronTrigger trigger = getCronTrigger(scheduler, job.getId());
  
              // 按新的cronExpression表达式重新构建trigger
              trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(cronScheduleBuilder).build();
  
              // 参数
              trigger.getJobDataMap().put(ScheduleConstants.TASK_PROPERTIES, job);
  
              scheduler.rescheduleJob(triggerKey, trigger);
  
              // 暂停任务
              if (job.getStatus().equals(ScheduleConstants.Status.PAUSE.getValue()))
              {
                  pauseJob(scheduler, job.getId());
              }
  
          }
          catch (SchedulerException e)
          {
              log.error("SchedulerException 异常：", e);
          }
          catch (TaskException e)
          {
              log.error("SchedulerException 异常：", e);
          }
      }
  
      /**
       * 立即执行任务
       */
      public static int run(Scheduler scheduler, SysJob job)
      {
          int rows = 0;
          try
          {
              // 参数
              JobDataMap dataMap = new JobDataMap();
              dataMap.put(ScheduleConstants.TASK_PROPERTIES, job);
  
              scheduler.triggerJob(getJobKey(job.getId()), dataMap);
              rows = 1;
          }
          catch (SchedulerException e)
          {
              log.error("run 异常：", e.getMessage());
          }
          return rows;
      }
  
      /**
       * 暂停任务
       */
      public static void pauseJob(Scheduler scheduler, String jobId)
      {
          try
          {
              scheduler.pauseJob(getJobKey(jobId));
          }
          catch (SchedulerException e)
          {
              log.error("pauseJob 异常：", e);
          }
      }
  
      /**
       * 恢复任务
       */
      public static void resumeJob(Scheduler scheduler, String jobId)
      {
          try
          {
              scheduler.resumeJob(getJobKey(jobId));
          }
          catch (SchedulerException e)
          {
              log.error("resumeJob 异常：", e);
          }
      }
  
      /**
       * 删除定时任务
       */
      public static void deleteScheduleJob(Scheduler scheduler, String jobId)
      {
          try
          {
              scheduler.deleteJob(getJobKey(jobId));
          }
          catch (SchedulerException e)
          {
              log.error("deleteScheduleJob 异常：", e);
          }
      }
  
      public static CronScheduleBuilder handleCronScheduleMisfirePolicy(SysJob job, CronScheduleBuilder cb)
              throws TaskException
      {
          switch (job.getMisfirePolicy())
          {
              case ScheduleConstants.MISFIRE_DEFAULT:
                  return cb;
              case ScheduleConstants.MISFIRE_IGNORE_MISFIRES:
                  return cb.withMisfireHandlingInstructionIgnoreMisfires();
              case ScheduleConstants.MISFIRE_FIRE_AND_PROCEED:
                  return cb.withMisfireHandlingInstructionFireAndProceed();
              case ScheduleConstants.MISFIRE_DO_NOTHING:
                  return cb.withMisfireHandlingInstructionDoNothing();
              default:
                  throw new TaskException("The task misfire policy '" + job.getMisfirePolicy()
                          + "' cannot be used in cron schedule tasks", TaskException.Code.CONFIG_ERROR);
          }
      }
  }
  