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Naresh536
Level 2
April 19, 2023
Solved

Dynamic Scheduler on given date in aem as a cloud service.

  • April 19, 2023
  • 1 reply
  • 1227 views

Hi Team,

 

I have a requirment. The requirment is, once the bundle got activated it has to get the date from page and create a scheduler with that date.

once scheduler gets triggered on given date and time it has to do some x task and again it has to get the date and time from page and schedule a new scheduler.

 

I have created a apache scheduler (org.apache.sling.commons.scheduler.Scheduler) and it's working in local but not in cloud (some times it worked but suddenly it stoped working with no errors in logs) and also i tried sling job (org.apache.sling.event.jobs.consumer.JobConsumer) it working in local but not in cloud. Could anyone help me to achive the requirement using scheduler or any other ways.

 

Thanks in advance.

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Best answer by ShaileshBassi

Hi @naresh536 Yes the piece of code shared above by you, does not work.
Try out the using jobManager.addJob(JOB_TOPIC, props);

Code Snippet

@Override public void run() { Map<String, Object> props = new HashMap<>(); jobManager.addJob(JOB_TOPIC, props); }

 This worked for us.

Hope this helps!

Thanks

1 reply

ShaileshBassi
Community Advisor
ShaileshBassiCommunity Advisor
Community Advisor
April 19, 2023

Hi @naresh536 There are issue with scheduler on AEM Cloud instance.

It is recommended to use the Sling Jobs for writing the business logic to be executed at a particular time.

 

@Component(immediate=true, service=Runnable.class, property = {Constants.SERVICE_ID + "=Test Scheduler"} public class Test implements Runnable { @Reference private JobManager jobManager; @Reference private Scheduler scheduler; @Override public void run() { Map<String, Object> props = new HashMap<>(); jobManager.addJob(JOB_TOPIC, props); } @Activate @Modified protected void activate(final Config config) { scheduler.unschedule("scheduler-name"); final ScheduleOptions scheduleOptions = scheduler.EXPR(<Scheduler-CRON-EXP>); scheduleOptions.name("scheduler-name"); scheduleOptions.canRunConcurrently(false); scheduler.schedule(this, scheduleOptions); } }

 

 Now create the JobConsumer class and make sure the job topic is same in this and the above scheduler class.

Create a common static reference in JobConsumer and use in the Scheduler as shown in the sample code.

 

 

public static final String JOB_TOPIC = "job/test";

 

Hope this helps!
Thanks
    N
    Naresh536Author
    Level 2
    April 19, 2023

    Thanks for the response @shaileshbassi .

     

    I have implemented the same jobManager. it worked in local but not in  cloud. i have followed the below link

    https://blog.developer.adobe.com/handling-sling-schedulers-in-aem-as-a-cloud-service-cb59d5e59e9

    Below will be called from active method.


    pblic void startScheduledJob() {
    Collection<ScheduledJobInfo> myJobs = jobManager.getScheduledJobs();
    if (myJobs.isEmpty()) {
    Calendar cal = getPageTTL();
    ScheduleBuilder scheduleBuilder = jobManager.createJob(TOPIC).schedule();
    cal.add(Calendar.MINUTE, 1);
    Date date = new Date(cal.getTimeInMillis());
    scheduleBuilder.at(date);
    if (scheduleBuilder.add() == null) {
    LOGGER.info("is empty LOGGER");
    // something went wrong here, use scheduleBuilder.add(List<String>) instead to get further information about the error
    } else {
    LOGGER.info("is non empty LOGGER::{}",date);
    }
    }

      ShaileshBassi
      Community Advisor
      ShaileshBassiCommunity AdvisorAccepted solution
      Community Advisor
      April 20, 2023

      Hi @naresh536 Yes the piece of code shared above by you, does not work.
      Try out the using jobManager.addJob(JOB_TOPIC, props);

      Code Snippet

      @Override public void run() { Map<String, Object> props = new HashMap<>(); jobManager.addJob(JOB_TOPIC, props); }

       This worked for us.

      Hope this helps!

      Thanks

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