HDDS-14361. Implement bucket CRUD as BucketOperationHandler

[Russole]

What changes were proposed in this pull request?

• Refactor bucket PUT handling using BucketOperationHandler.
• Move bucket create and delete logic into BucketCrudHandler.

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-14361

How was this patch tested?

All CI checks passed.

• https://github.com/Russole/ozone/actions/runs/21366428253

[adoroszlai]

Thanks @Russole for the patch, mostly LGTM.

[adoroszlai]

Handlers are tried in order, so BucketCrudHandler does not need to check conditions, just handle all requests that reach it, like BucketEndpoint did.

We can keep this method if you prefer, but then please rename to shouldHandle and reuse in handleDeleteRequest.

[Russole]

Thanks @adoroszlai for the suggestion. I’ve renamed the method to shouldHandle() and applied it to both handlers.

[echonesis]

Thanks @Russole for the patch.
The refactoring looks good and follows the existing handler pattern well. However, could you please add unit tests for BucketCrudHandler?

You can refer to TestBucketAclHandler as an example. The tests should cover:

• Normal bucket creation and deletion
• Scenarios where shouldHandle() returns false (with query parameters)
• Error handling cases (BUCKET_NOT_EMPTY, BUCKET_NOT_FOUND, INVALID_BUCKET_NAME)

[adoroszlai]

could you please add unit tests for BucketCrudHandler?

Let's leave that for a follow-up. Existing tests for BucketEndpoint cover that now.

[echonesis]

LGTM +1

[adoroszlai]

Thanks @Russole for the patch, @echonesis for the review.

[Russole]

Thanks @adoroszlai and @echonesis for the review.