[GitHub] zhijiangW opened a new pull request #7704: [FLINK-11604][network] Extend the necessary methods in ResultPartitionWriter interface

[GitBox <gi...@apache.org>]

zhijiangW opened a new pull request #7704: [FLINK-11604][network] Extend the necessary methods in ResultPartitionWriter interface
URL: https://github.com/apache/flink/pull/7704
 
 
   ## What is the purpose of the change
   
   *This is a preparation work for future creating `ResultPartitionWriter` via proposed `ShuffleService`.*
   
   *Currently there exists only one `ResultPartition` implementation for `ResultPartitionWriter` interface, so the specific `ResultPartition` instance is easily referenced in many other classes such as `Task`, `NetworkEnvironment`, etc. Even some private methods in `ResultPartition` would be called directly in these reference classes.*
   
   *Considering ShuffleService might create multiple different `ResultPartitionWriter` implementations future, then all the other classes should only reference with the interface and call the common methods. Therefore we extend the related methods in `ResultPartitionWriter` interface in order to cover existing logics in `ResultPartition`.*
   
   ## Brief change log
   
     - *Extend more methods in `ResultPartitionWriter` interface*
     - *Reference `ResultPartitionWriter` instead of `ResultPartition` in related classes*
     - *Introduce `TestResultPartitionWriter` for reusing and simplifying related tests*
   
   ## Verifying this change
   
   This change is already covered by existing tests, such as *RecordWriterTest*.
   
   ## 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, 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? (not applicable)
   

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