Base class for the server implementation of the service DataprocMetastoreFederation.
Configures and manages metastore federation services.
Dataproc Metastore Federation Service allows federating a collection of
backend metastores like BigQuery, Dataplex Lakes, and other Dataproc
Metastores. The Federation Service exposes a gRPC URL through which metadata
from the backend metastores are served at query time.
The Dataproc Metastore Federation API defines the following resource model:
* The service works with a collection of Google Cloud projects.
* Each project has a collection of available locations.
* Each location has a collection of federations.
* Dataproc Metastore Federations are resources with names of the
form:
`projects/{project_number}/locations/{location_id}/federations/{federation_id}`.