Boyang Chen created KAFKA-9993:
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Summary: Think about inheritance in the protocol generation
framework
Key: KAFKA-9993
URL: https://issues.apache.org/jira/browse/KAFKA-9993
Project: Kafka
Issue Type: Improvement
Reporter: Boyang Chen
We have seen that there are a lot of common fields inside the request/response
templates that could be extracted as a super class for auto generated classes.
For example most response contains a top level error code. Currently to build a
service receiving multiple RPCs, the code template produces a lot of redundant
error code extraction logic which is far from ideal.
What we want to discuss is whether to enable the general inheritance mechanism
in this framework, what's the trade-off and complexity increase, and if there
is any workaround just to make less boiler templates.
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