[jira] [Commented] (CRUNCH-328) Add support for ExtensionRegistry with PTypes.protos

["Gabriel Reid (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CRUNCH-328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878347#comment-13878347 ] 

Gabriel Reid commented on CRUNCH-328:
-------------------------------------

+1

> Add support for ExtensionRegistry with PTypes.protos
> ----------------------------------------------------
>
>                 Key: CRUNCH-328
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-328
>             Project: Crunch
>          Issue Type: Bug
>          Components: Core
>            Reporter: Josh Wills
>            Assignee: Josh Wills
>         Attachments: CRUNCH-328.patch
>
>
> Came across a use case where it would be great to be able to have support for deserializing protobufs using an ExtensionRegistry for some custom message extensions. ExtensionRegistry isn't serializable and there isn't a good way to serialize it using the current protobuf libraries, so I also created a Serializable extension of Guava's Supplier interface to handle cases where we need to specify how to construct an object for use in a DoFn as an external argument, which seemed fairly useful.



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