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https://issues.apache.org/jira/browse/KAFKA-3073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16221506#comment-16221506
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Jeff Klukas commented on KAFKA-3073:
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Since a significant segment of the Kafka user community come from a Java
background, I would expect many users would be most comfortable with Java's
regex library over PCREs. It seems reasonable to me to start there (since the
Java consumer already includes a subscribe() variant that takes a Java regex
Pattern) and leave it to a separate effort to find a suitable PCRE library and
add a new subscribe() variant.
If we add PCRE support in the future, we could control which type of regex is
used via an additional 'topics.pattern.type' configuration option.
> KafkaConnect should support regular expression for topics
> ---------------------------------------------------------
>
> Key: KAFKA-3073
> URL: https://issues.apache.org/jira/browse/KAFKA-3073
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Reporter: Gwen Shapira
> Assignee: Liquan Pei
> Labels: needs-kip
>
> KafkaConsumer supports both a list of topics or a pattern when subscribing.
> KafkaConnect only supports a list of topics, which is not just more of a
> hassle to configure - it also requires more maintenance.
> I suggest adding topics.pattern as a new configuration and letting users
> choose between 'topics' or 'topics.pattern'.
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