JingsongLi opened a new pull request, #9838:
URL: https://github.com/apache/paimon/pull/9838
### Purpose
Add a generic REST API for attaching string labels to existing catalog
entities. All entity types use the same `/v1/{prefix}/labels` endpoint family:
- `POST /labels` creates or replaces one binding identified by entity type,
canonical entity name, and key.
- `GET /labels/{entityType}/{entityName}` lists direct bindings with
pagination.
- `GET` and `DELETE /labels/{entityType}/{entityName}/{key}` read or
idempotently remove one binding.
This change adds the Java client methods, request/response models,
Management OpenAPI contract, and usage documentation. The client preserves
provider-defined entity names and encodes each path parameter separately.
Catalog servers remain responsible for entity resolution, authorization, and
atomic persistence.
### Tests
- `mvn -pl paimon-api -DwildcardSuites=none test` — 207 tests passed on JDK
8, including 11 label HTTP contract tests and shaded/external Jackson
compatibility checks.
- `node docs/scripts/validate-rest-openapi.js` — both REST specifications
passed validation.
- `git diff --check` — passed.
Label tests cover a single POST per upsert, shared routes for
table/column/provider-defined types, URL encoding including dot-only segments,
pagination, repeated deletion, input validation, and error propagation.
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