Correct way of handling dialog save operation on backend for AEMaaCS

[MikołajBuda]

We migrate our project from On Prem to Cloud. On Prem used a feature called "protected areas" where specific pages were protected by password. In order to set this password on specific page properties we had a custom PostOperation service to get that password from request parameter and store it in CRX after CryptoSupport encryption. In current AEM SDK I can see that I cannot compile my custom class implementing PostOperation due to

[ERROR] cannot access org.apache.sling.servlets.post.exceptions.PreconditionViolatedPersistenceException

[ERROR] class file for org.apache.sling.servlets.post.exceptions.PreconditionViolatedPersistenceException not found

[ERROR] cannot access org.apache.sling.servlets.post.exceptions.TemporaryPersistenceException

[ERROR] class file for org.apache.sling.servlets.post.exceptions.TemporaryPersistenceException not found

and in fact those exception classes are not available in AEM SDK jar. Moreover it seems like Abstract for this PostOperation interface is deprecated.

What is a current approach of listening to dialog changes in order to process those parameters before saving to CRX?

[lukasz-m · Accepted solution]

Hi @MikołajBuda,

Assuming that you are using OOTB way of handling dialogs via SlingPostServlet, you can consider to use SlingPostProcessor as an alternative. I think it should cover your case.

[Jörg_Hoh]

Can you please doublecheck that these classes are not included in the SDK? What's version of the SDK are you using? If this is a problem on the SDK for the latest AEM release, please report it with support. These classes should definitely be included.

Thanks!