Add assets to collections programatically

[AEMComm]

Hi Team,

How to  add assets and asset folders to collections(/content/dam/collections) programmatically by servlet?

Kindly suggest. Thanks.

[Saravanan_Dharmaraj]

@AEMComm You can use lightbox collection API 

https://javadoc.io/static/com.adobe.aem/uber-jar/6.5.21/com/day/cq/dam/api/lightbox/Lightbox.html

add(Asset asset)

method should do. 

please check it out. 

[lukasz-m · Accepted solution]

Hi @AEMComm,

There are no public available collections java api that you could use, apart of the one pointed by @Saravanan_Dharmaraj which supports lightbox only.

However you can use ResourceCollectionManager and ResourceCollection from Sling - this api is used by internal AEM mechanisms to support collection.

It can be used like below:

// place for imports
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.resource.collection.ResourceCollection;
import org.apache.sling.resource.collection.ResourceCollectionManager;

public class CollectionServlet extends SlingAllMethodsServlet {

    @Reference
    private ResourceCollectionManager resourceCollectionManager;

    @Override
    protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException {

        // path to collection
        String collectionPath = "/content/dam/collections/L/L7vWaG-HBgET5udyUwdI/test-collection";
        // path to asset
        String assetPath = "/content/dam/we-retail/en/activities/biking/forest-trail.jpg";

        ResourceResolver resourceResolver = request.getResourceResolver();
        Resource collection = resourceResolver.getResource(collectionPath);
        Resource asset = resourceResolver.getResource(assetPath);

        if (collection != null && asset != null) {
            ResourceCollection rc = resourceCollectionManager.getCollection(collection);
            if (rc != null) {
                if (rc.add(asset)) {
                    resourceResolver.commit();
                }
            }
        }
    }
}

You can pass asset and collection path as a parameter, above example used hardcoded values for simplification.

[AEMComm]

Thank you @lukasz-m it worked. 

Could you also please help me to know to is there any specific API to create a project under /content/dam/project?

Node API works as expected but I'm still searching for relevant API to create a project. Kindly help. 

Thank you