Dennis-Mircea opened a new pull request, #28083:
URL: https://github.com/apache/flink/pull/28083
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## Contribution Checklist
- Make sure that the pull request corresponds to a [JIRA
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## What is the purpose of the change
This pull request migrates the built-in `'connector' = 'datagen'` table
source (`DataGenTableSource` in `flink-table-api-java-bridge`) off the
long-deprecated `SourceFunctionProvider` and the legacy `SourceFunction`-based
`DataGeneratorSource` / `RandomGenerator` / `SequenceGenerator` hierarchy, onto
the FLIP-27 source stack (`Source` API + `SourceProvider`).
These were the last remaining usages of those deprecated APIs from a
built-in table connector and contributed a sizeable chunk of the frozen entries
in `flink-architecture-tests-production`. User-visible behavior of the
connector is preserved: same DDL options, same value distributions, same
parallelism, same `rows-per-second` rate limiting, and same termination
semantics for bounded sequence fields.
## Brief change log
- Replaced `SourceFunctionProvider` with `SourceProvider.of(Source,
parallelism)` in `DataGenTableSource`.
- Switched the underlying source to FLIP-27
`org.apache.flink.connector.datagen.source.DataGeneratorSource`, driven by a
composite `GeneratorFunction<Long, RowData>` and
`RateLimiterStrategy.perSecond(rowsPerSecond)`.
- Introduced new `RandomGeneratorFunction<T>` /
`SequenceGeneratorFunction<T>` types implementing `GeneratorFunction<Long, T>`,
replacing the legacy `RandomGenerator` / `SequenceGenerator` hierarchies.
Migrated `RowDataGenerator`, `DataGeneratorMapper`,
`DecimalDataRandomGenerator`, `DataGeneratorContainer`, and the random/sequence
visitors accordingly.
- Sequence checkpoint state ownership moved from per-generator
`ListState<Long>` deques to the `NumberSequenceSource` driving the FLIP-27
source. The legacy "halt when any sequence range is exhausted" semantic is
preserved via a source-level effective count (`min(sequenceFieldsTotalCount)`
when `number-of-rows` is unset).
- Added `flink-connector-datagen` as a dependency of
`flink-table-api-java-bridge`.
- Removed the now-stale entries from
`flink-architecture-tests-production/archunit-violations/`.
## Verifying this change
This change added tests and can be verified as follows:
- `DataGenTableSourceFactoryTest` rewritten to drive the generator function
directly via `DataGenTableSource#buildRowGenerator()` +
`computeEffectiveCount()` (no MiniCluster needed). All 14 existing factory +
per-field behavior assertions are retained.
- New test `testSequenceProducesEachValueExactlyOnce` asserts every value in
the requested `[start, end]` range is produced exactly once.
- `DecimalDataRandomGeneratorTest` updated for the new `map(Long)` entry
point.
- Architecture tests in `flink-architecture-tests-production` pass with the
legacy-API violation entries removed from the frozen list.
- Existing ITCases that exercise `'connector' = 'datagen'` (e.g.
`DataGeneratorConnectorITCase`, `SqlGatewayServiceITCase`,
`AbstractMaterializedTableStatementITCase`, `OpenAIChatModelTest`,
`ProcessTableFunctionTest`) continue to pass unchanged.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): **yes**
(`flink-table-api-java-bridge` now depends on `flink-connector-datagen`)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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