JCR event listener is not working in aem 6.4 | Adobe Higher Education
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V
vitis90
Level 3
November 2, 2018
Répondu

JCR event listener is not working in aem 6.4

Hi all,

Looks like the JCR event listener in 6.4 is broken. Events dont get triggered at all. Is anyone else facing the same issue? Is there any solution?

    Ce sujet a été fermé aux réponses.
    Meilleure réponse par arunpatidar

    Hi Scott,

    It does work with system user as well. But you need JCR repository session in order to get jcr events work.

    Below code works for me.

    aem63app-repo/SampleJCREvent.java at master · arunpatidar02/aem63app-repo · GitHub

    @Reference
    private SlingRepository repository;
    private Session session;
    private ObservationManager observationManager;
    protected void activate(ComponentContext context) throws Exception {
    session = repository.loginService("readService",null);
    observationManager = session.getWorkspace().getObservationManager();
    observationManager.addEventListener(this, Event.PROPERTY_ADDED | Event.PROPERTY_CHANGED, "/content/AEM64App/fr", true, null,
    new String[]{"cq:PageContent","nt:unstructured"} , true);
    logger.info("*************added JCR event listener");
    }

    15 commentaires

    Afficher les réponses précédentes
    smacdonald2008
    smacdonald2008
    Level 10
    November 3, 2018

    Confirmed this output was created:  com.adobe.community.listeners.SimpleResourceListener something has been added : /apps/example/config

    Code:

    package com.adobe.community.listeners;

    import java.util.HashMap;

    import java.util.Map;

    import javax.jcr.Property;

    import javax.jcr.RepositoryException;

    import javax.jcr.Session;

    import javax.jcr.observation.Event;

    import javax.jcr.observation.EventListener;

    import javax.jcr.observation.ObservationManager;

    import org.apache.sling.api.resource.LoginException;

    import org.apache.sling.api.resource.Resource;

    import org.apache.sling.api.resource.ResourceResolver;

    import org.apache.sling.api.resource.ResourceResolverFactory;

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

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

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

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

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

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

    import org.slf4j.Logger;

    import org.slf4j.LoggerFactory;

    import org.osgi.service.component.ComponentContext;

    import javax.jcr.observation.EventIterator ;

    @Component(immediate=true,

    service= EventListener.class)

    public class SimpleResourceListener implements EventListener{

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

         private Session adminSession;

        

       

         @Reference

         org.apache.sling.jcr.api.SlingRepository repository;

        

         @Activate

         public void activate(ComponentContext context) throws Exception {

         log.info("activating ExampleObservation");

         try {

       adminSession = repository.loginService("datawrite",null);

             adminSession.getWorkspace().getObservationManager().addEventListener(

              this, //handler

              Event.PROPERTY_ADDED|Event.NODE_ADDED, //binary combination of event types

              "/apps/example", //path

              true, //is Deep?

              null, //uuids filter

              null, //nodetypes filter

              false);

        

            

         } catch (RepositoryException e){

          log.error("unable to register session",e);

          throw new Exception(e);

         }

        }

        @Deactivate

        public void deactivate(){

         if (adminSession != null){

          adminSession.logout();

         }

        }

        

        public void onEvent(EventIterator eventIterator) {

          try {

            while (eventIterator.hasNext()){

              log.info("something has been added : {}", eventIterator.nextEvent().getPath());

            }

           } catch(RepositoryException e){

           log.error("Error while treating events",e);

          }

         }

        }

    6.4 article  -- https://helpx.adobe.com/experience-manager/using/aem64_event_listener.html

    ajinkayk6258253
    ajinkayk6258253
    Level 3
    May 29, 2019

    this solution is not  working for 6.5

      arunpatidar
      Community Advisor
      arunpatidarCommunity Advisor
      Community Advisor
      May 29, 2019

      Hi,

      What error are you getting? Is bundle active?

      Arun Patidar
        ajinkayk6258253
        ajinkayk6258253
        Level 3
        May 29, 2019

        not getting any error. bundle is also active, eventlistner not working. it worked with administrativelogin.but not with servicelogin

          A
          andrija_sm
          Level 2
          March 25, 2021

          It's 2021 Same problem on Cloud AEM when switched to version 2021.3.5087.20210322T071003Z. On version: AEM v2021.1.4794.20210121T150042Z. it was working fine.

          arunpatidar
          Community Advisor
          arunpatidarCommunity Advisor
          Community Advisor
          May 29, 2019

          Hi,

          I've just checked below example in 6.5, working fine for me.

          I created a system user arch17sysuser, gave CRUD permissions, created mapping with sub service readService

          mapping look like below where com.acc.arch17.arch17.core is bundle symbolic name.

          com.acc.arch17.arch17.core:readService=arch17sysuser

          aem63app-repo/SampleJCREvent.java at master · arunpatidar02/aem63app-repo · GitHub

          Arun Patidar
            K
            karthick1356
            Level 4
            January 11, 2023

            @arunpatidar 

            onEvent method never triggered for me. is it still working for you?

            bcz I followed the same from here:aem63app-repo/SampleJCREvent.java at master · arunpatidar02/aem63app-repo · GitHub.

            I saw the log event that get registered and unregistered.

             

            public void onEvent(EventIterator it) {
                while (it.hasNext()) {
                    Event event = it.nextEvent();
                    try {
                        logger.info("********INSIDE TRY *****");
                        Property changedProperty = session.getProperty(event.getPath());
                        if (changedProperty.getName().equalsIgnoreCase("jcr:title")
                                && !changedProperty.getString().endsWith("!")) {
                            changedProperty.setValue(changedProperty.getString() + "!");
                            logger.info("*************Property updated: {}", event.getPath());
                            session.save();
                        }
                    }
                    catch (Exception e) {
                        logger.error(e.getMessage(), e);
                    }
                }
            }

             

            arunpatidar
            Community Advisor
            arunpatidarCommunity Advisor
            Community Advisor
            January 11, 2023

            HI @karthick1356 
            Which AEM version are you using?

            Arun Patidar
            Conditions d'utilisationAccessibility statement

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