Scheduler not working in AEM 6.3

[#1]

Hello,

I have following code for scheduler, I am just trying to print the log statement to check if scheduler actually works. It is not firing any event. In the logs I see -

[java.lang.Runnable]] ServiceEvent REGISTERED

But nothing gets printed. Can you please help ? Here is the code I am using -

@Component(immediate = true )

@Properties({

    @Property(

            label = "Cron expression defining when this Scheduled Service will run",

            description = "[every minute = 0 * * * * ?] ",

            name = "scheduler.expression",

            value = "0 1 0 ? * *"

    ),

    @Property(

            label = "Allow concurrent executions",

            description = "Allow concurrent executions of this Scheduled Service. This is almost always false.",

            name = "scheduler.concurrent",

            propertyPrivate = true,

            boolValue = false

    )

})

@Service

public class RssfeedScheduler implements Runnable {

protected final Logger log = LoggerFactory.getLogger(this.getClass());

public void run() {

log.error("RSSfeed*** This is test to check if cron job is working********");

log.info("in info scheduler***");

}

@Activate

  public void activate() throws RepositoryException {

log.error("In scheduler ****");

log.info("In scheduler123 ****");

}

}

[#2 · Accepted solution]

Ah! May be I missed the Cron expression. I thought it is set to run every minute so that I can verify The log statement getting printed. I will try the Cron expression that you mentioned, by changing it to 1 min instead of 30mins. Thank you!

[#3]

This is the code I posted earlier and deleted as it was marking it correct answer and closing this question. i triEd OSGIR6 annotations and it is still not working. Logs statement is not getting printed. Can you please let me if this is actually working for you?

[#4]

Hi Sneha,

Your code is working perfectly and it triggers everyday at 12:01 AM (as per mentioned cron value = "0 1 0 ? * *", your job triggers everyday at 12:01 AM).

If you want to trigger this job for every 30 seconds then change it to "*/30 * * * * ?" and verify.

Regards,

Yerriswamy Reddy

[#5]

Hi Sneha,

I would recommmend you to use osgi annotation instead of felix scr specific annotations, although there is no hard rule to adapt to the latest version

import org.osgi.service.component.annotations.Activate;

import org.osgi.service.component.annotations.Component;

import org.osgi.service.metatype.annotations.AttributeDefinition;

import org.osgi.service.metatype.annotations.Designate;

import org.osgi.service.metatype.annotations.ObjectClassDefinition;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

@Designate(ocd = RssfeedScheduler.Config.class)

@Component(service = Runnable.class)

public class RssfeedScheduler implements Runnable {

   @ObjectClassDefinition(name = "A scheduled task", description = "Cron-job like task with properties")

   public static @interface Config {

   @AttributeDefinition(name = "Cron-job expression")

  String scheduler_expression() default "0 0/15 * 1/1 * ? *";

   @AttributeDefinition(name = "Concurrent task", description = "Whether or not to schedule this task concurrently")

   boolean scheduler_concurrent() default false;

  }

   private final Logger log = LoggerFactory.getLogger(this.getClass());

   public void run() {

   log.error("RSSfeed*** This is test to check if cron job is working********");

   log.info(" in info scheduler***");

  }

   @Activate
   public void activate(final Config config) {

   log.error("In scheduler ****");

   log.info("In scheduler123 ****");

  }

}

Here is an example for OSGi R7 annotation, To use the OSGi R7 anno­ta­tions, add these depen­den­cies

<dependency>

   <groupId>org.osgi</groupId>

   <artifactId>osgi.core</artifactId>

   <version>6.0.0</version>

   <scope>provided</scope>

</dependency>

<dependency>

   <groupId>org.osgi</groupId>

   <artifactId>osgi.cmpn</artifactId>

   <version>6.0.0</version>

   <scope>provided</scope>

</dependency>

<dependency>

   <groupId>org.osgi</groupId>

   <artifactId>org.osgi.annotation</artifactId>

   <version>6.0.0</version>

   <scope>provided</scope>

</dependency>

<dependency>

   <groupId>org.osgi</groupId>

   <artifactId>org.osgi.service.component</artifactId>

   <version>1.4.0</version>

   <scope>provided</scope>

</dependency>

<dependency>

   <groupId>org.osgi</groupId>

   <artifactId>org.osgi.service.metatype.annotations</artifactId>

   <version>1.4.0</version>

   <scope>provided</scope>

</dependency>

/Brijesh