HDDS-14534. Refactor ObjectEndpoint get/delete to use ObjectOperationHandler

[Russole]

What changes were proposed in this pull request?

Continue HDDS-14398 by refactoring GET and DELETE handlers in ObjectEndpoint to use ObjectOperationHandler.

• Move deleteObjectTagging and getObjectTagging into ObjectTaggingHandler and implement handleDeleteRequest and handleGetRequest in ObjectTaggingHandler using these methods.
• Override handleDeleteRequest and handleGetRequest in ObjectEndpoint, moving existing logic from get and delete, but keep OMException handling in the original method, and drop:
  • S3 owner check
  • logic related to object tagging
  • logic related to audit logging
• Change get and delete to delegate to handler.
• Updated EndpointTestUtils to set the mocked request method for GET/PUT/DELETE calls, preventing null context/method failures when routing through the handler chain.
• Updated related tests to align with the refactored handler-based execution flow

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-14534

How was this patch tested?

All CI checks passed.

• https://github.com/Russole/ozone/actions/runs/21631400554

[Gargi-jais11]

Thanks @Russole for the patch. Please find the inline comment.

[Gargi-jais11]

I think you missed this part.
When uploadId != null and an exception occurs, the code doesn't update listPartsFailureStats. The catch block only updates getKeyFailureStats when uploadId == null

[Russole]

Thanks @Gargi-jais11 for the review. Fixed in the latest commit.