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https://issues.apache.org/jira/browse/BEAM-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xu Mingmin updated BEAM-1407:
-----------------------------
    Description: 
enhance KafkaIO to work with Kafka client 0.9 and 0.10, (maybe 0.8 as well ?), 
1). to fully leverage new features in each version, like external 
authentication, timestamp in 0.10;
2). hide kafka API changed, to support steamless switch between different 
cluster versions;

Scope of change:
1). add an abstract API for Kafka Consumer in existing KafkaIO. By default it's 
kafka 0.9 to keep compatible, with an option for extension;
2). Wrapped API for Kafka 0.10, with Kafka message timestamp support;
3). wrapped API for Kafka 0.8 (TBD);



  was:
enhance KafkaIO to work with Kafka client 0.9 and 0.10, to fully leverage new 
features in 0.10: external authentication, timestamp.

Scope of change:
1). Add an adapter layer to hide the API differences between Kafka0.9 and 0.10;
2). use Kafka message timestamp as default in mode 0.10;



> Support multiple Kafka client in KakaIO
> ---------------------------------------
>
>                 Key: BEAM-1407
>                 URL: https://issues.apache.org/jira/browse/BEAM-1407
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-extensions
>            Reporter: Xu Mingmin
>            Assignee: Xu Mingmin
>
> enhance KafkaIO to work with Kafka client 0.9 and 0.10, (maybe 0.8 as well 
> ?), 
> 1). to fully leverage new features in each version, like external 
> authentication, timestamp in 0.10;
> 2). hide kafka API changed, to support steamless switch between different 
> cluster versions;
> Scope of change:
> 1). add an abstract API for Kafka Consumer in existing KafkaIO. By default 
> it's kafka 0.9 to keep compatible, with an option for extension;
> 2). Wrapped API for Kafka 0.10, with Kafka message timestamp support;
> 3). wrapped API for Kafka 0.8 (TBD);



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