Matthias J. Sax created KAFKA-9913:
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Summary: TopologyDescription should expose all topic name
progrematically
Key: KAFKA-9913
URL: https://issues.apache.org/jira/browse/KAFKA-9913
Project: Kafka
Issue Type: Improvement
Components: streams
Reporter: Matthias J. Sax
During the discussion of KIP-594, it became clear that it is helpful for
testing purpose to verify which topics are used in a topology (ie, all user
input and output topics, as well as internal topics like repartiton or
changelog topics).
While the current `TopologyDescription` does expose this information (only
changelog topic names are missing atm), there is no convenient way to get all
topic names at once, but one must traverse the nodes of each sub-topology to
collect this information manually.
Hence, the proposal is to add utility methods to `TopologyDescription` that
expose this information programatically. As this is a public API change, it
will be required to write a KIP
([https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals])
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