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https://issues.apache.org/jira/browse/BEAM-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15349050#comment-15349050
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Daniel Halperin commented on BEAM-221:
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One idea was to simply wrap AvroIO in a Composite PTransform:
* Avro schema is just a single byte[].
* On read, convert from byte[] to the user's proto.
* On write, convert from proto to byte[].
In this way, ProtoIO would just be a simple wrapper for AvroIO.Read+ParDo
(read) or ParDo+AvroIO.Write.
> ProtoIO
> -------
>
> Key: BEAM-221
> URL: https://issues.apache.org/jira/browse/BEAM-221
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-gcp
> Reporter: Daniel Halperin
> Priority: Minor
>
> Make it easy to read and write binary files of Protobuf objects. If there is
> a standard open source format for this, use it.
> If not, roll our own and implement it?
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