laserninja opened a new issue, #10674:
URL: https://github.com/apache/gravitino/issues/10674
### Describe the feature
Implement the missing `POST /v1/{prefix}/transactions/commit` REST endpoint
in Gravitino's Iceberg REST catalog server, as defined by the Iceberg REST
Catalog API spec (`CommitTransactionRequest`).
### Motivation
The Iceberg REST spec defines `POST /v1/{prefix}/transactions/commit` for
atomic multi-table commits. Gravitino's Iceberg REST server does not implement
this endpoint. Clients performing atomic cross-table operations (e.g., Spark
multi-table writes) will fail when targeting Gravitino as an Iceberg REST
catalog.
### Describe the solution
- Add `IcebergTransactionOperations` JAX-RS class with `POST
/v1/{prefix}/transactions/commit`
- Add `IcebergTransactionOperationDispatcher` interface +
`Executor`/`EventDispatcher`/`HookDispatcher` chain
- Wire the endpoint into the existing server bootstrap
- Register the endpoint in `ConfigResponse` so clients discover it
- Add unit and integration tests
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