[jira] [Created] (FLINK-18512) [KINESIS][EFO] Introduce RecordPublisher Interface

[Shang Yuanchun (Jira)]

Danny Cranmer created FLINK-18512:
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             Summary: [KINESIS][EFO] Introduce RecordPublisher Interface
                 Key: FLINK-18512
                 URL: https://issues.apache.org/jira/browse/FLINK-18512
             Project: Flink
          Issue Type: Sub-task
            Reporter: Danny Cranmer


*Background*

In order to add support for EFO in the {{FlinkKinesisConsumer}} we are abstracting out the record consumption from Kinesis {{ShardConsumer}} and introducing an interface. 

*Scope*

Introduce the {{RecordPublisher}} interface and refactor the existing polling implementation to implement it:
 * Add {{PollingRecordPublisher}} that is functional equivalent to the existing implementation
 * Support adaptive throughput via an extension, {{AdaptivePollingRecordSubscriber}}
 * Split out the {{ShardMetricReporter}} into separate classes such that each component can report it's own metrics:
 ** {{ShardConsumer}}
 ** {{PollingRecordConsumer}}
 ** {{FanOutRecordConsumer}} (later)
 * All the existing unit test will continue to pass, and be functionally equivalent (there may be minor compilation tweaks)



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