Getting a list of regions that support DocumentDB

[AdamBalski]

Describe the bug

List of supported regions for DocumentDB returned by software.amazon.awssdk.regions.servicemetadata.DocdbServiceMetadata#regions does not include eu-south-1, although this service is available in this region.
List of supported regions for DocumentDB returned by DocDbClient.serviceMetadata().regions() returns a superset of regions that document db is supported in as it resolves to RDS regions and some of them do not have support for DocDB.

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

I expect both/either of these methods to return the list of all regions that support DocDB.

Current Behavior

List of supported regions for DocDB does not include eu-south-1 region if you get them using: software.amazon.awssdk.regions.servicemetadata.DocdbServiceMetadata#regions.
List of supported regions for DocDB contains regions that have support for RDS, but not for DocDB if you get them using DocDbClient.serviceMetadata().regions().

Reproduction Steps

Call software.amazon.awssdk.regions.servicemetadata.DocdbServiceMetadata#regions method to get list of supported regions for DocDB service.
Call DocDbClient.serviceMetadata().regions() method to get list of supported regions for DocDB service

Possible Solution

No response

Additional Information/Context

This is a follow-up to: #5585

AWS Java SDK version used

2.29.43

JDK version used

openjdk 21.0.5 2024-10-15

Operating System and version

macOS 15.1.1

[debora-ito]

List of supported regions for DocumentDB returned by DocDbClient.serviceMetadata().regions() returns a superset of regions that document db is supported in as it resolves to RDS regions and some of them do not have support for DocDB.

I see. Thank you for pointing that out.

We'll need to figure out how to fix this upstream, the serviceMetadata is based on the service models and right now the DocDB service metadata id is "rds". I'll post updates here when we know more.