Poorvankbhatia opened a new pull request, #26813:
URL: https://github.com/apache/flink/pull/26813
## What is the purpose of the change
This pull request migrates the ProcessingTimeServiceSource test utility from
the deprecated SourceFunction API to the new Source V2 API in
StreamSourceOperatorLatencyMetricsTest.
## Brief change log
- Replaced ProcessingTimeServiceSource extends SourceFunction<Long> with
ProcessingTimeServiceSource implements Source<Long, SourceSplit, Void>
- Implemented required Source V2 interfaces: SourceReader,
SplitEnumerator, and serializers
- Updated test execution logic to use operator.emitNext() pull-based model
instead of the push-based operator.run()
- Added JavaDoc documentation clarifying the test-only nature of
ProcessingTimeServiceSource
## Verifying this change
This change is already covered by existing tests, such as:
- All 5 existing test cases in StreamSourceOperatorLatencyMetricsTest
continue to pass:
- testLatencyMarkEmissionDisabled
- testLatencyMarkEmissionEnabledViaExecutionConfig
- testLatencyMarkEmissionEnabledViaFlinkConfig
- testLatencyMarkEmissionEnabledOverrideViaExecutionConfig
- testLatencyMarkEmissionDisabledOverrideViaExecutionConfig
The tests verify that latency markers are correctly emitted (or not emitted)
based on various configuration settings.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- 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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