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https://issues.apache.org/jira/browse/SAMZA-1075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15872827#comment-15872827
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ASF GitHub Bot commented on SAMZA-1075:
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Github user jmakes closed the pull request at:
https://github.com/apache/samza/pull/56
> Refactor SystemAdmin Interface to expose a common method to create streams.
> ---------------------------------------------------------------------------
>
> Key: SAMZA-1075
> URL: https://issues.apache.org/jira/browse/SAMZA-1075
> Project: Samza
> Issue Type: Bug
> Reporter: Jake Maes
> Assignee: Jake Maes
>
> With samza-1041, we plan to automatically create intermediate streams for a
> given graph. To do this, we need a generic way to create streams on all
> supported systems.
> We currently auto-create streams for checkpoints, coordinatorStream, and
> changelogs, we do so using a fragmented set of interfaces and methods. e.g.
> to create a checkpoint topic, the KafkaCheckpointMnager.start() creates the
> topic using KafkaUtil directly, whereas for the coordinatorStream, we call
> the SystemAdmin.createCoordinatorStream() method. The former is specific to a
> particular System, but the latter is theoretically (but not actually)
> implemented for every System.
> Instead of using custom methods in differing levels of abstraction, we should
> just expose one simple createStream() method in the SystemAdmin interface and
> deprecate the old methods. The new createStream method will receive a
> complete, system-specific blueprint/specification for the stream and use that
> to create the actual stream.
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