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https://issues.apache.org/jira/browse/FLINK-24362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser updated FLINK-24362:
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Fix Version/s: (was: 1.16.0)
> Consider reworking handlers to use composition
> ----------------------------------------------
>
> Key: FLINK-24362
> URL: https://issues.apache.org/jira/browse/FLINK-24362
> Project: Flink
> Issue Type: Technical Debt
> Components: Runtime / REST
> Reporter: Chesnay Schepler
> Priority: Major
>
> Rest handlers are currently a bit annoying to test because they are all
> implemented based on inheritance. This means that even if we just want to
> test the interactions between the handler and dispatcher we also setup the
> REST stack and as such for example need to provide messages headers.
> Related to that handlers are currently always working against subclasses of
> the RestfulGateway interface, which in _all_ cases provides a much larger API
> surface than a given handler actually requires, and there's no way to opt out
> of that.
> I've created a prototype that would allow individual handlers to work with
> composition and furthermore work against subsets of the RestfulGateway
> interface.
> The conversion is not difficult and pretty much just busy work.
> https://github.com/zentol/flink/tree/_proto_handler_composition
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