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https://issues.apache.org/jira/browse/KAFKA-13497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17479034#comment-17479034
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Spencer Carlson edited comment on KAFKA-13497 at 1/20/22, 5:04 PM:
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My request is very similar to what is already being done in
[Cast.java#L170|https://github.com/apache/kafka/blob/99b9b3e84f4e98c3f07714e1de6a139a004cbc5b/connect/transforms/src/main/java/org/apache/kafka/connect/transforms/Cast.java#L170].
It seems preferable to be able to enable trace or debug logging and see with
certainty that the topic is being transformed how I would expect, then to have
to look at the source code, reverse engineer how the callbacks fire to set
`replacement`, and then recreate the same snippet of java code.
Duplicating the logic outside of Connect helps validate the regex logic, but
not that the transform is actually being executed.
was (Author: JIRAUSER281070):
My request is very similar to what is already being done in
[Cast.java#L170|https://github.com/apache/kafka/blob/99b9b3e84f4e98c3f07714e1de6a139a004cbc5b/connect/transforms/src/main/java/org/apache/kafka/connect/transforms/Cast.java#L170].
It seems preferable to be able to enable trace or debug logging and see with
certainty that the topic is being transformed how I would expect, then to have
to look at the source code, reverse engineer how the callbacks fire to set
`replacement`, and then recreate the same snippet of java code.
Duplicating the logic outside of Connect helps validate that the transform is
happening how I would expect, but not that the transform is actually being
executed.
> Debug Log RegexRouter transform
> -------------------------------
>
> Key: KAFKA-13497
> URL: https://issues.apache.org/jira/browse/KAFKA-13497
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Reporter: Spencer Carlson
> Priority: Minor
>
> It is hard to troubleshoot regex transformations without knowing exactly what
> the new topic transformation is.
>
> Can we add a debug log in the
> [RegexRouter.java#L59|https://github.com/apache/kafka/blob/99b9b3e84f4e98c3f07714e1de6a139a004cbc5b/connect/transforms/src/main/java/org/apache/kafka/connect/transforms/RegexRouter.java#L59]
> to print out the transformed topic
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