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https://issues.apache.org/jira/browse/BEAM-2715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814407#comment-16814407
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COURAGE NOKO commented on BEAM-2715:
------------------------------------

[~kenn] Yes, this is still an outstanding request. We found this to be useful 
for end-to-end tests for streaming pipelines.

> Expose PubsubSource to create UnboundedSource and utilize withMaxNumRecords 
> from BoundedReadFromUnboundedSource
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: BEAM-2715
>                 URL: https://issues.apache.org/jira/browse/BEAM-2715
>             Project: Beam
>          Issue Type: New Feature
>          Components: io-java-gcp
>            Reporter: Adam Levy
>            Priority: Major
>              Labels: pubsub, triaged
>
> We are ingesting from a Pubsub Read and are attempting to mimic the 
> maxNumRecords that was available in 0.6.0. In order to do this we would need 
> to utilize withMaxNumRecords from the BoundedReadFromUnboundedSource class. 
> We would need to utilize the PubsubSource class to create the UnboundedSource 
> from Pubsub. Would it be possible to expose PubsubSource? Currently what is 
> the recommended way to create a bounded read from Pubsub with a set number of 
> records?



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