[ 
https://issues.apache.org/jira/browse/BEAM-5786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655431#comment-16655431
 ] 

Alexey Romanenko edited comment on BEAM-5786 at 10/18/18 3:35 PM:
------------------------------------------------------------------

[~rangadi] Yes but initially I thought that this is the same case as for 
{{withTopics(List<String>)}}. The only difference that before we have to 
discover the whole list of topics and select matched ones. 
Although, I agree that detection new topics, matched to user pattern, at 
runtime seems more useful for this case and more complicated feature. So, I 
changed it to "major". 


was (Author: aromanenko):
[~rangadi] Yes but initially I thought that this is the same case as for 
{{withTopics(List<String>)}}. The only difference that before we have to 
discover the whole list of topics and selected matched ones. Although, I agree 
that detection new topics, matched to user pattern, at runtime seems more 
useful for this case and more complicated feature. So, I changed it to "major". 

> KafkaIO should support topic patterns
> -------------------------------------
>
>                 Key: BEAM-5786
>                 URL: https://issues.apache.org/jira/browse/BEAM-5786
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-kafka
>            Reporter: Alexey Romanenko
>            Assignee: Alexey Romanenko
>            Priority: Major
>
> For the moment, it is possible to set topics for KafkaIO.Read in 2 ways - one 
> single topic by using {{withTopic(String)}} or list of topics by using 
> {{withTopics(List<String>)}}. 
> It would make sense to provide another way for this using patterns, based on 
> regular expressions, like {{withTopics(“org_[0-9]+_source”)}}. In this case, 
> Kafka consumer could discover the topics based on user provided pattern.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to