lindong28 opened a new pull request #15051:
URL: https://github.com/apache/flink/pull/15051
## What is the purpose of the change
The current `KafkaRecordDesrializer` has the following problems:
- The existing DesrializationSchema and legacy `KafkaDeserializationSchema
`implementations cannot be reused.
- Missing an `open()` method with context for serialization and
deserialization.
The purpose of the change is to fix the above issues.
## Brief change log
- Add a `getUserCodeClassLoader()` method to `SourceReaderContext` so the
SourceReader implementation can construct the
`SerializationDeserializationContext`.
- Add the bridge method to facilitate reuse of the `DeserializationSchema`
and legacy `KafkaDeserializationSchema`.
- Rename `KafkaRecordDeserializer` to `KafkaRecordDeserializationSchema` to
follow the naming convention.
## Verifying this change
- Added tests in `KafkaRecordDeserializationSchemaTest` to verify the
changes made in KafkaRecordDeserializationSchema
## 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)`: (yes)
- The serializers: (yes)
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, 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? (JavaDocs)
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