AEM Assets References Update Programmatically

[beast42]

Hi All,

We have a use-case where we are exposing AEM DAM to an internal 3rd party app. 

We want to track if assets in AEM are being used/referenced in the 3rd party application. Is there any way we can programmatically update Asset references in AEM? I have already looked into Asset Manager API and could not find a way. 

We were thinking to expose an endpoint from AEM which would hit by third part app. It would add references programmatically in AEM. 

Thanks

[SantoshSai]

Hi @beast42 ,

There are two aspects considering your scenario  

1. Rendering references in Reference tab of Asset
   
   DAM Asset References in AEM are shown based on Query ie. finding where all it has been used and accordingly prepares table and shown in Reference tab.
   
   Below are reference.html and Reference.Java responsible for the same
   
   

   /libs/dam/remoteassets/components/references/reference/reference.html

   /libs/dam/remoteassets/components/references/reference/Reference.java

   You can override it, to have your asset reference listed in this table of Reference tab.
   
   
2. Finding references of Asset
   
   How can you find reference of asset whether it has been used by 3rd party?
   There can be multiple ways but one I have in my mind is - You can get some String/Boolean value from 3rd party agent and use that for listing in above Reference tab.

Additionally just for your reference - You can also find references of asset programatically - sharing code snippet below

String Pagepath = "/content/we-retail/en"; //This would be your page path
Resource r = resourceResolver.getResource(Pagepath+"/"+JcrConstants.JCR_CONTENT);
Node n = r.adaptTo(Node.class);
AssetReferenceSearch ref = new AssetReferenceSearch(n,DamConstants.MOUNTPOINT_ASSETS,resourceResolver);

Map<String,Asset> allref = new HashMap<String,Asset>();
allref.putAll(ref.search());
for (Map.Entry<String, Asset> entry : allref.entrySet()) {
      String val = entry.getKey();
      out.println(val+"<br>"); // Path of all Asset ref in page
      Asset asset = entry.getValue();
   }

Hope that helps!

Regards,

Santosh

[beast42]

Thanks @SantoshSai . We'll explore this approach further.

[Aditya_Chabuku · Accepted solution]

Hi @beast42 , We implemented a similar scenario once. 

Follow these steps & you should be achieving this

• Storing External Resources under Asset
  • Create a Listener to record every time an asset is being called from a 3rd party API.
  • Capture that URL along with the Title of that call.
  • Store this information under a custom node in that particular asset.
• Displaying saved External Resources 
  • Create a data source under /libs/dam/remoteassets/content/allreferences
  • add a custom data source java class as sling:resourceType 

    sling:resourceType

    String

    <your custom java servlet with ResourceType>

  • This Servlet will give go & get all external resources you have stored under your custom node.
  • Now, populate them under References tab, for that refer this Internal references JSP /libs/dam/remoteassets/content/allreferences/datasource

This is one of many approaches, but can be easily done.

~Aditya.Ch

[beast42]

Thanks @Aditya_Chabuku  . We'll explore this approach further.

[alex_p_c_]

Hi @Aditya_Chabuku, how can we achieve this?

'Create a Listener to record every time an asset is being called from a 3rd party API'

What is the event we would need to listen?

Thank you.

Regards,