Can we extend AssetDuplicationDetector to send email instead of notification in case of duplicate images

[sanketd27011989]

  We have OOTB  feature to GET notification incase of duplicate Asset uploaded ,If we enable the  Asset duplicate detector configuration . Can we extend this com.adobe.cq.assetcompute.impl.assetprocessor.AssetDuplicationDetector class to send email instead of notification in AEM as cloud.  Please suggest solution for the same.

[SantoshSai]

Hi @sanketd27011989,

I think, you can’t directly extend or override com.adobe.cq.assetcompute.impl.assetprocessor.AssetDuplicationDetector in AEM as a Cloud Service, because:

• It’s an internal OSGi implementation class managed by Adobe inside the Asset Compute pipeline.

• In AEMaaCS, you don’t have control over modifying or subclassing these OOTB services.

That said, you can build a supported extension pattern:

• You can register an OSGi EventHandler or Sling Job Consumer that listens for:

  • com.day.cq.dam.api.DamEvent.ASSET_DUPLICATE (event type fired on duplicate).

• In your handler, trigger an Email Service (com.day.cq.mailer.DefaultMailService) to send an email.
  OR

• Configure a custom workflow step after the duplication check in your asset ingestion workflow model.

• In that step, use the Email Service to notify recipients with asset details.

[giuseppebaglio · Accepted solution]

hi @sanketd27011989,

I would try one of the following approaches: 

• Event-driven via Adobe I/O Events for AEM Assets: Subscribe to assets events such as “asset ready” to receive payloads that include repository metadata like dam:sha1, then query AEM for assets with the same hash; if duplicates are found, send email via a service of choice. Reference: here

• AEM-side listener after processing: Implement a listener that reacts once the asset state is processed (for example, checking jcr:content/dam:assetState), look up duplicates by dam:sha1, and send an email using the Day CQ Mail Service configuration.

To check for duplicates, you can use the SHA-1 fingerprint stored at jcr:content/metadata/dam:sha1. By querying other assets that share this SHA-1 value, you can identify potential duplicates regardless of their filename or path. In other words, you can run a query on the dam:Asset nodes where dam:sha1 matches the hash of the current asset. Any additional results returned by the query can be considered duplicates.