How to wait until Dam Update asset workflow completes

Question

I am using a servlet to upload images programatically through asset manager api into dam and its renditions will be created by dam update asset workflow. In the servlet response I need to return the urls of all the generated renditions for the UI to consume.Now since the rendition generation will take time, as dam update asset workflow takes time to start and to complete, how to ensure that my servlet sends the response only after all the renditions are completely generated? Note:- I am using ImageMagic for generating renditions via dam update asset workflow.

Peter_Puzanovs · Accepted Answer

Dear Ravi,

You can invoke Workflow API getStatus[1] to get the status of your workflow.

[1] https://helpx.adobe.com/experience-manager/6-4/sites/developing/using/reference-materials/javadoc/com/adobe/granite/workflow/exec/Workflow.html#getState--

You can then write Java code to check for the status of workflow. Make sure to include number of maximum retries to avoid infinitely blocked threads in your AEM instance.

Regards,

Peter

arunpatidar · Answer

you need to wait and do check periodically using Thread and check the status of the dam assets, PROCESS, COMPLETE and then return the URLs.
Please make sure you handling the thread and kill after sometime if dam process is stcuk.

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