Scenarios Based


Q11. )You have a site structure as — /content/yourproject/en_us/global/contactus.html . Now a property named cloudConfig may be present at any of the hierarchy . Your task is to fetch that property value and use it in contactus.html. What will you use for the best possible solution? 

The property could be present at any of the pages in the hierarchy, so the first solution you may think of is getting a property on that page, if it’s not present iterate to its parent page, check the property on that page, if it’s not present iterate parent page and so on. But this is a Brute-force method. Not at all appreciated.

Alternatively, you may use InheritanceValueMap to achieve this task. This interface is meant to make it much easier for developers to access properties inherited from parent pages. To do this, the interface provides two methods, getInherited(String, Class) and getInherited(String, Object), each of these methods will check for a value on the current resource and then check up the page hierarchy for another page with a value on the same content attribute. It will only attempt to retrieve values at the same page content path.

InheritanceValueMap iProperties = new HierarchyNodeInheritanceValueMap(resource);
String value = iProperties.getInherited("myProp",String.class);

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Q12. ) In reference to the above question, you have a component at the page contactus.html . Now that component should pick different configurations for publish and author modes. How will you handle this in your servlet?

The easiest way to do so is that in your @Component find the runMode and then based on that choose the values. But this is strongly NOT advisable.

The approach to this question would be to make the component/servlet require a configuration (policy=ConfigurationPolicy.REQUIRE) and Then create a run mode dependent configuration for that component.

imggture

eee

 

Read More for what happens in OSGi felix


Q13. ) Imagine you have a component A with a dialog A , and another component B with dialog B . You want to use that other dialogA’s tab into dialogB ? Now you want to use a user input from dialog A into dialog B, how will you proceed with that?

  • For this use-case, a specific widget with the label cqinclude exists which allows for the inclusion of dialogA elements in other dialogB definitions. The generic JSON format is used on the client side to construct the actual dialog. example :
{
  "jcr:primaryType": "cq:Widget",
  "xtype": "cqinclude",
  "path": "/libs/replication/components/agent/tab_extended.infinity.json"
}

The path property needs to point to a dialog-resource that is to be included in JSON format.

  • To use User Input from dialog A to dialog B is somewhat tricky. Depending on the use-case/ requirement you can store the user input variable on the page property– jcr:content from Dialog A. And while opening the dialogB , write a listener function on load content event and pick that stored value from the location of dialog A. The approach can be changed ample of ways depending on a particular Use case.

Q14. )  Consider there are 3 components: 
1. Component A  ———A.jsp ————-output T1
2. Component B  ———B.jsp ————-output T2 ; sling:resourceSuperType is A
You want to create another component C  (sling:resourceType is B ) and component D  (sling:resourceSuperType is B ) wherein, you need an output of T3 only. Which jsps you may override in both the cases individually?

If you understand inheritance in components this question would be a cakewalk. Note that the question seeks as ONLY one single output (only T3, not T1 /T2) Please check the solution I am suggesting:

  • Component C: As sling:resourceType is Component B. First of all B.jsp is called and then from its sling:resourceSuperType A.jsp. Thereby both the jsps are called. Hence to override the output you would have to override A.jsp and B.jsp both, and in one of them give output T3.
  • Component D: As sling:resourceSuperType is Component B. you may need to override only B.jsp and change it to display output T3.

Q15. ) Let’s say there are Article pages and NEWS Pages in your project. Every article page can be linked to NEWS pages using Related NEWS component. And every NEWS page should have RELATED Articles component with list a of Articles where it is present. How will design the solution for this, keeping in mind Caching Strategies and Authoring Convenience ?

23 thoughts on “Scenarios Based

  1. Pingback: How to Prepare ? – CQ5 AEM Tricks of Trade

  2. I have one question for the migration of the Page content versions to new instances/upgrade to higher version of AEM.
    As per the documentation from the Adobe are we going to lose the versions. ?

    https://docs.adobe.com/docs/en/cq/5-6-1/core/administering/backup_and_restore.html#Package%20Backup

    I am trying to retain my page content versions authored data when migrating to another instance. Tried via the package manager but getting error like below

    ” /jcr:system/jcr:versionStorage/b7/c0/80 (javax.jcr.PathNotFoundException: 80)
    saving approx 3 nodes…
    Package imported (with errors, check logs!) ”

    Is there any chance for retaining page versions via the API.

    Note :- I cannot go for an in-place upgrade, as i have AEM Instance A with some set of applications and another AEM instance B with different set of applications and planning a migration to AEM instance C

    Liked by 1 person

    • Hi Vardhan,

      If you want to transfer content along with the Versions you may try to package out the version Nodes using the Filter option of Package Manager. If the number of versions are huge and the packages doesnt work due to that, try to version purge some older versions and then try to package out.

      Even after that if the package fails, please post the error logs here .

      Regards
      Hashim

      Like

  3. Thank you Hashim,
    when i tried taking a package and install in another instance able to see the following error.

    ” Importing content…
    – /
    – /content
    – /content/geometrixx
    – /content/geometrixx/en
    – /content/geometrixx/en/products
    – /content/geometrixx/en/products/triangle
    – /content/geometrixx/en/products/triangle/features
    U /content/geometrixx/en/products/triangle/features/jcr:content
    – /content/geometrixx/en/products/triangle/features/jcr:content/par
    – /content/geometrixx/en/products/triangle/features/jcr:content/rightpar
    A /content/geometrixx/en/products/triangle/features/jcr:content/title
    – /content/geometrixx/en/products/triangle/features/jcr:content/par/image
    – /content/geometrixx/en/products/triangle/features/jcr:content/par/table_0
    – /content/geometrixx/en/products/triangle/features/jcr:content/rightpar/iparsys_fake_par
    – /jcr:system
    – /jcr:system/jcr:versionStorage/b7/c0
    E /jcr:system/jcr:versionStorage/b7/c0/80 (javax.jcr.PathNotFoundException: 80)
    saving approx 3 nodes…
    Package imported (with errors, check logs!)

    Package installed in 662ms. “

    Like

    • Hi ,
      I believe some of the version nodes are corrupted in your existing environment. Try two things:
      1. Are you able to install the package in another environment of same configuration and version
      2. Try to exploit VLT tool and checkout the versions using that. Then use vlt to checkin the nodes in your new instance.
      3. If all this fails, then try to run a consistency check on the version nodes.

      Do let me know what are your findings. Hopefully it should work.

      Regards
      Hashim

      Like

  4. Pingback: AEM Useful Links – enlightenmyknowledge

    • Hi , I didnt get the question. Why do you want to Access a version of a page in Publish instance. Versions are stored in Author and the final verified version is Pushed to Publish.

      Like

  5. thanks for replay Hashim Khan

    when publish page, we are able to generate versions in jcr:system level in author instance but i need to generate versions data in publish instance..

    i am able to create versions digital assets in publish instance for this i change workflow launcher (dam metadata writeback) runmodes publish to author,publish.

    how can we do versioning for pages in publish instance ?

    Like

  6. Hi HashimKhan

    How to activate Page with out create versionHistory data Jcr:system Level

    /jcr:system/jcr:versionStorage/b6/7f/7c/b67f7c22-678f-4696-9022-80a21665aed5/1.0

    i don’t want create versions like 1.0, 1.1,1.2….. when i am activate page

    Because I am already using create Version workflow by using this i am generating version data 1.0,1.1…..

    Like

  7. thanks for reply

    in My workflow i have two models 1)create version model 2) activate page workflow

    by create version workflow i am creating versions like 1,0,1,,1,1,2 this one is fine.

    again i m using activation page model to activate page author to publish instance.

    in that it will creating versions 1,0,1,,1,1,2…….. i don’t need to create versions in this model.

    in workflow only one time i need to create versions .

    is it possible particular activate page model i need to disable versions.

    Like

  8. com.day.cq.wcm.core.impl.VersionManagerImpl in this osgi configuration

    versionmanager.createVersionOnActivation (Boolean, : false)

    i am not able to create versions

    how to do for specific project this configuration

    i don’t want affect this configuration remaining projects

    Like

  9. i am not using pageActivation Model in Workflow

    i am create versions by using createVersion Model then Assign that version in to etc/test/node properties

    As per coding just replicating etc/test/node to publish instance

    replicator.replicate(session, ReplicationActionType.ACTIVATE, etc/test/node );

    my project requirement we don’t need to activate pages.

    Like

  10. com.day.cq.wcm.core.impl.VersionManagerImpl in this osgi configuration

    versionmanager.createVersionOnActivation (Boolean, : true )

    Is it Possible how to do for specific project this configuration

    versionmanager.createVersionOnActivation (Boolean, : false )

    i don’t want affect this configuration remaining projects

    Like

  11. Pingback: Your Complete Guide for Passing Adobe Experience Manager (AEM) 6 Architect Certification (9A0-385) Exam

  12. Hi Hashim,

    I am new to the AEM. Just wandering usually we deploy the WAR files to the application server in J2EE projects. How we will create a PROD or other high level environment for AEM. Is there is any recommended practice from Adobe?

    Like

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