如何处理同一石英调度程序的两个触发器

Question

I have quartz scheduler and I have created a trigger for specified time(Every day). And I also created another trigger for another specified time (Every three months once)

Below is my code to schedule two triggers to single scheduler.

  Scheduler sch = new StdSchedulerFactory().getScheduler();

        JobDetail jobDetail = JobBuilder.newJob(MFRScheduler.class)
                .withIdentity("firstJob", "group1").build();
        JobDetail jobDetail1 = JobBuilder.newJob(MFRScheduler.class)
                .withIdentity("cleanTrigger", "group2").build();
        Trigger trigger = TriggerBuilder
                .newTrigger()
                .withIdentity("firstJob", "group1")
                .withSchedule(
                    CronScheduleBuilder.cronSchedule(schduledTime))
                    .build();
        Trigger houseKeepingTrigger = TriggerBuilder
                .newTrigger()
                .withIdentity("mfrJobHouseKeeping","group2")
                .withSchedule(
                        CronScheduleBuilder.cronSchedule(cleanTrigerTime)
                        )
                .build();

        sch.start();
        sch.scheduleJob(jobDetail, trigger);
        sch.scheduleJob(jobDetail1, cleanTrigger);

I have overided the method execute() of org.quartz.Job

   @Override
public void execute(JobExecutionContext arg0) throws JobExecutionException {
    // TODO Auto-generated method stub




    _log.info("--- This is in Execute method");


    try{



        Thread thread = new Thread(new FIRSTProcess("FIRST_THREAD"),"thread2");
        thread.start();
        thread.setName("FIRST_THREAD");


        thread = null;
        Thread.sleep(3000);


    }catch(Exception e)
    {
        e.printStackTrace();


    }

What my question is here One trigger triggers every day and content in execute() method will execute, since I have only one method execute() will get executed for two triggers.

What I need is the content in execute method should get executed only when my firstTrigger triggers when my second trigger triggers I would like to do some other things instead of making duplicate work of firstTrigger Can please explain how to segergate the two triggers work.

Thanks in advance

Answer 1

As you want to do different work, I would suggest to create different implementations of the jobs (eg MFRSchedulerHouseKeeping.class). Then you can assign the triggers you want to the specific jobs.

Scheduler sch = new StdSchedulerFactory().getScheduler();

JobDetail jobDetail = JobBuilder.newJob(MFRScheduler.class)
        .withIdentity("firstJob", "group1").build();
JobDetail jobDetail1 = JobBuilder.newJob(MFRSchedulerHouseKeeping.class)
        .withIdentity("houseKeepingJob", "group2").build();
Trigger trigger = TriggerBuilder
        .newTrigger()
        .withIdentity("firstJob", "group1")
        .withSchedule(
            CronScheduleBuilder.cronSchedule(schduledTime))
            .build();
Trigger houseKeepingTrigger = TriggerBuilder
        .newTrigger()
        .withIdentity("mfrJobHouseKeeping","group2")
        .withSchedule(
                CronScheduleBuilder.cronSchedule(cleanTrigerTime)
                )
        .build();

sch.start();
sch.scheduleJob(jobDetail, trigger);
sch.scheduleJob(jobDetail1, cleanTrigger);

An alternative approach would be to query the Trigger from the JobExecutionContext via getTrigger() and do the appropriate work on behalf of the result.

@Override
public void execute(JobExecutionContext context ) throws JobExecutionException {


    final String triggerName = context.getTrigger().getKey().getName();
    if (TRIGGER_NAME_1.equals(triggerName)) {
         // do work ...
    } 

    // other cases...
}