Tags are not fetching in AEM 6.4 when upgrading from AEM6.2. is there anyone else facing same problems?

[pankajkdhingra]

Tags were working properly in AEM 6.2. and we upgraded to AEM 6.4. Now tag manager is unable to resolve tags and throwing null pointer exception.

TagManager tagManager = resourceResolver.adaptTo(TagManager.class);

Tag tagObj = tagManager.resolve("/etc/tags/x/abc");

TagManager tagManager = resourceResolver.adaptTo(TagManager.class);

Tag tagObj = tagManager.resolve("x:abc");

both of the above-mentioned code snippets are not working and throwing null pointer when try to use tabObj.

"everyone" user has been provided all permissions on /etc/tags folder and sub folders.

please help.

thanks in advance.

[arunpatidar]

Hi,

In AEM 6.4 tags moved to the another location which is /content/cq:tags

Adobe Experience Manager Help | Common Repository Restructuring in AEM 6.4

This could be the issue.

Thanks

Arun

[pankajkdhingra]

Thanks Arun for your response.

Yes, I have given access to this location too. but as far I was reading that AEM 6.4 supports backward compatibility and works for both locations of tags.

[arunpatidar]

Hi,

I tried same and I can get the tags from /content/cq:tags and from /etc/tags/. Without having /etc/tags/ node I can read the tag from /etc/tags/ in my code but internally it points to tag resides inside /content/cq:tags/. If I create /etc/tags/ and update tags there, it makes no difference because tags are being read from new location that is /content/cq:tags/

e.g. aem63app-repo/GetTags.java at master · arunpatidar02/aem63app-repo · GitHub

Any custom code that explicitly references the path /etc/tags must be updated to /content/cq:tags, or preferably rewritten to leverage the TagManager Java API, in tandem with this migration.

Thanks

Arun

[pankajkdhingra]

Hi Arun,

thanks a lot for this response.

I still getting issues. The only difference in my code and your code is that in your code, it is getting TagManager from req in servlet while I am writing the tag fetching logic in Controller class in activate method by getting resolving to resource resolver of user account. like this.

public ResourceResolver getUserSystemResourceResolver() {

    ResourceResolverFactory factory = getSlingScriptHelper().

            getService(ResourceResolverFactory.class);

    ResourceResolver resourceResolver = ResourceResolverUtils.

            getResourceResolver(factory,

                    ResourceResolverUtils.TAG_MANAGER_SYSTEM_USER);

    return resourceResolver;

  }

public static ResourceResolver getResourceResolver(ResourceResolverFactory resourceResolverFactory,

          String user) {

    if (resourceResolverFactory != null) {

      Map<String, Object> authInfo = new HashMap<>();

      authInfo.put(ResourceResolverFactory.SUBSERVICE, user);

      try {

        return resourceResolverFactory.getServiceResourceResolver(authInfo);

      } catch (LoginException e) {

        LOGGER.error("Cannot Login user " + user, e);

        return null;

      }

    }

    return null;

  }

TagManager tagManager = getUserSystemResourceResolver().adaptTo(TagManager.class);

it is not reading any tags. I have created tags in both locations.

thanks a lot in advance,

[arunpatidar · Accepted solution]

Hi,

In AEM 6.4 you can get subservice session like below. Similar you can do for TagMAnager. In below code you can replace Session with TagManager.

And check your import also. I am using osgi annotation.

@Reference

  private ResourceResolverFactory resourceFactory;

  ResourceResolver resourceResolver = null;

public Session getSubserviceSession() {

  Session session = null;

  Map<String, Object> paramMap = new HashMap<String, Object>();

  paramMap.put(ResourceResolverFactory.SUBSERVICE, "readService");

  try {

  resourceResolver = resourceFactory.getServiceResourceResolver(paramMap);

  // logger.debug("User id inside {}", resourceResolver.getUserID());

  session = resourceResolver.adaptTo(Session.class);

  } catch (Exception e) {

  // TODO Auto-generated catch block

  e.printStackTrace();

  logger.debug("getSubserviceSession : Unable to Login : " + e);

  }

  return session;

  }

you can check below for imports.

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