becketqin opened a new pull request #14303: URL: https://github.com/apache/flink/pull/14303
## What is the purpose of the change The current KafkaRecordDesrializer has the following problems: 1. The existing `DesrializationSchema` and legacy `KafkaDeserializationSchema` implementations cannot be reused. 2. Missing an `open()` method with context for serialization and deserialization. This patch fixes the above issues by doing the following: * 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. ## 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`. ## Verifying this change Unit tests have been added to `KafkaRecordDeserializationSchemaTest` to verify the change 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? (Java doc) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org