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Best answer by sunil_kumar_

Hi @akshaybhujbale ,
Before you get ResourceResolver using service/system user. You must have
1. Must have service user created with needed permissions.
2. It should map with your bundle. if you use for specific project/operations.
You should not do any of these task manually. These should be done by code/configurations.
Created service user and adding permission can done by ACS Commons or Repository Initialization (repoinit). Recommended to use Repository Initialization (repoinit) for aem as a cloud service

 

Using ACS Commons- Create this OSGi config
com.adobe.acs.commons.users.impl.EnsureServiceUser
Or Using Repository Initialization
org.apache.sling.jcr.repoinit.RepositoryInitializer
Map service user to bundle using this OSGi config
org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl

Once you are done with these configs. Get ResourceResolver using this service user

@Reference
ResourceResolverFactory resourceResolverFactory;

final Map<String, Object> paramMap = new HashMap<String, Object>();
paramMap.put( ResourceResolverFactory.SUBSERVICE, "SERVICE_USER" );
ResourceResolver resolver = resourceResolverFactory.getServiceResourceResolver(paramMap);

Hope this will help



4 replies

DEBAL_DAS
DEBAL_DAS
New Member
June 9, 2022

Are you looking for something like below one -

/**
 * 
 */
package com.aem.demo.core.services.impl;

import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

import org.apache.sling.api.resource.LoginException;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.aem.demo.core.services.JcrUtility;

/**
 * @author debal
 *
 */
@Component(service = JcrUtility.class, immediate = true)
public class JcrUtilityImpl implements JcrUtility {

	private final Logger logger = LoggerFactory.getLogger(JcrUtilityImpl.class);

	@Reference
	ResourceResolverFactory resourceResolverFactory;

	@Override
	public ResourceResolver getResourceResolver() {
		Map<String, Object> map = new HashMap<String, Object>();
		map.put(resourceResolverFactory.SUBSERVICE, "readWriteService");
		ResourceResolver serviceResourceResolver = null;
		try {

			serviceResourceResolver = resourceResolverFactory.getServiceResourceResolver(map);
		} catch (LoginException e) {
			logger.error("Could not get service user [ {} ]", "demoSystemUser", e.getMessage());
		}
		return serviceResourceResolver;

	}

	@Override
	public void closeResourceResolver(ResourceResolver resourceResolver) {
		if (Objects.nonNull(resourceResolver)) {
			resourceResolver.close();
		}

	}

}
Debal Das, Senior AEM Consultant
    A
    akshaybhujbaleAuthor
    Level 6
    June 9, 2022

    Hi @debal_das 

     

    I have tried this code but getting nullpointer error at this line 

    rerviceResourceResolver = resourceResolverFactory.getServiceResourceResolver(map)

    basically it is not initilizing resourceResolverFactory using @Refernece annotation.

      DEBAL_DAS
      DEBAL_DAS
      New Member
      June 9, 2022

      I believe you have added bundle symbolic name, subServiceName and system user mapping like the below one -

       

      You have created system user and given requisite permission also -

       

      Debal Das, Senior AEM Consultant
        Anmol_Bhardwaj
        Community Advisor
        Anmol_BhardwajCommunity Advisor
        Community Advisor
        June 9, 2022

        Can you briefly explain your use-case. Like why do you need the resourceResolver outside model or without the @3214626 annotation.

        This is usually not a good practive and created overhead.

         

        Expanation:

        https://stackoverflow.com/questions/41708758/aem-sling-how-to-create-resourceresolverfactory-in-a-standalone-code

         

        If you can explain your use case, maybe it can be done without resource resolver.

          sunil_kumar_
          sunil_kumar_Accepted solution
          Level 5
          June 9, 2022

          Hi @akshaybhujbale ,
          Before you get ResourceResolver using service/system user. You must have
          1. Must have service user created with needed permissions.
          2. It should map with your bundle. if you use for specific project/operations.
          You should not do any of these task manually. These should be done by code/configurations.
          Created service user and adding permission can done by ACS Commons or Repository Initialization (repoinit). Recommended to use Repository Initialization (repoinit) for aem as a cloud service

           

          Using ACS Commons- Create this OSGi config
          com.adobe.acs.commons.users.impl.EnsureServiceUser
          Or Using Repository Initialization
          org.apache.sling.jcr.repoinit.RepositoryInitializer
          Map service user to bundle using this OSGi config
          org.apache.sling.serviceusermapping.impl.ServiceUserMapperImpl

          Once you are done with these configs. Get ResourceResolver using this service user

          @Reference
ResourceResolverFactory resourceResolverFactory;

final Map<String, Object> paramMap = new HashMap<String, Object>();
paramMap.put( ResourceResolverFactory.SUBSERVICE, "SERVICE_USER" );
ResourceResolver resolver = resourceResolverFactory.getServiceResourceResolver(paramMap);

          Hope this will help



            BrianKasingli
            Community Advisor and Adobe Champion
            BrianKasingliCommunity Advisor and Adobe Champion
            Community Advisor and Adobe Champion
            June 10, 2022

            @akshaybhujbale,

            The best practice is to utilize the system user. If you like videos, take a look at this one. It's an easy to follow youtube video from AEM Geeks, https://www.youtube.com/watch?v=H_ljzX9B4Q

             

              sunil_kumar_
              sunil_kumar_
              Level 5
              June 10, 2022

              @briankasingli , 
              I guess, you missed something in url. Let me add correct url.

              https://youtu.be/H_ljzX9B4Q0

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