QuartzOnceJob.java

package cn.dreampie.quartz.job;

import cn.dreampie.quartz.QuartzKey;
import cn.dreampie.quartz.Quartzer;
import cn.dreampie.quartz.exception.QuartzException;
import org.quartz.*;

import java.util.Date;

import static org.quartz.TriggerBuilder.newTrigger;

/**
 * Created by wangrenhui on 14/11/29.
 */
public class QuartzOnceJob extends QuartzJob {

  private Date startTime;

  public QuartzOnceJob(String name, Date startTime, Class<? extends Job> jobClass) {
    this(Quartzer.nextKey(name), startTime, jobClass);
  }

  public QuartzOnceJob(String group, String name, Date startTime, Class<? extends Job> jobClass) {
    this(Quartzer.nextKey(group, name), startTime, jobClass);
  }

  public QuartzOnceJob(QuartzKey quartzKey, Date startTime, Class<? extends Job> jobClass) {
    this.quartzKey = quartzKey;
    this.startTime = startTime;
    this.jobClass = jobClass;
  }

  /**
   * @param force 是否强制启动，true 表示  如果存在相同的key值的任务时，停止任务，强制执行新任务
   */
  public void start(boolean force) {

    QuartzJob quartzJob = Quartzer.getJob(quartzKey);
    if (quartzJob != null) {
      if (force) {
        quartzJob.stop();
      } else {
        return;
      }
    }

    long id = quartzKey.getId();
    String name = quartzKey.getName();
    String group = quartzKey.getGroup();
    SchedulerFactory factory = Quartzer.getSchedulerFactory();

    try {
      if (factory != null) {
        Scheduler sched = factory.getScheduler();
        JobDetail job = getJobDetail(id, name, group);
        // 定时执行
        Trigger trigger = newTrigger()
            .withIdentity(TRIGGER_MARK + SEPARATOR + name + SEPARATOR + id, GROUP_MARK + SEPARATOR + group + SEPARATOR + id)
            .startAt(this.startTime)
            .build();


        this.scheduleTime = sched.scheduleJob(job, trigger);
        sched.start();
        Quartzer.addQuartzJob(this);
      }
    } catch (Exception e) {
      throw new QuartzException("Can't start once job.", e);
    }

  }

  public Date getStartTime() {
    return startTime;
  }

  public void setStartTime(Date startTime) {
    this.startTime = startTime;
  }

}