Greg Zoller created KAFKA-3571:
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Summary: Traits for utilities like ConsumerGroupCommand
Key: KAFKA-3571
URL: https://issues.apache.org/jira/browse/KAFKA-3571
Project: Kafka
Issue Type: New Feature
Components: clients
Affects Versions: 0.9.0.1
Reporter: Greg Zoller
Priority: Minor
I notice that several utilities like ConsumerGroupCommand are implemented
(hard-wired really) to be command-line utilities. It'd be really handy for
testing if these were broken out as Scala traits (that don't call println) with
the concrete classes or objects being the command-line utility.
As a trait I could create a thin wrapper class passing the same array of
arguments, and instead of producing screen output the trait could produce
result classes.
The command-line utilities (your concrete classes implementing the traits)
could format screen output from the result classes.
Why do this? It'd be a really nice way for test code to query things like
offsets and such after a test run.
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