[jira] [Reopened] (KAFKA-15538) Client support for java regex based subscription

["Phuc Hong Tran (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-15538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phuc Hong Tran reopened KAFKA-15538:
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> Client support for java regex based subscription
> ------------------------------------------------
>
>                 Key: KAFKA-15538
>                 URL: https://issues.apache.org/jira/browse/KAFKA-15538
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: clients, consumer
>            Reporter: Lianet Magrans
>            Assignee: Phuc Hong Tran
>            Priority: Major
>              Labels: kip-848, kip-848-client-support
>             Fix For: 3.8.0
>
>
> When using subscribe with a java regex (Pattern), we need to resolve it on the client side to send the broker a list of topic names to subscribe to.
> Context:
> The new consumer group protocol uses [Google RE2/J|https://github.com/google/re2j] for regular expressions and introduces new methods in the consumer API to subscribe using a `SubscribePattern`. The subscribe using a java `Pattern` will be still supported for a while but eventually removed.
>  * When the subscribe with SubscriptionPattern is used, the client should just send the regex to the broker and it will be resolved on the server side.
>  * In the case of the subscribe with Pattern, the regex should be resolved on the client side.



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