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From "Davor Bonaci (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (BEAM-2451) writeProtos() should allow a user to specify message attributes
Date Sat, 17 Jun 2017 18:25:00 GMT

     [ https://issues.apache.org/jira/browse/BEAM-2451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davor Bonaci reassigned BEAM-2451:
----------------------------------

    Assignee: Reuven Lax  (was: Davor Bonaci)

> writeProtos() should allow a user to specify message attributes
> ---------------------------------------------------------------
>
>                 Key: BEAM-2451
>                 URL: https://issues.apache.org/jira/browse/BEAM-2451
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>    Affects Versions: 2.0.0
>            Reporter: Keith Berkoben
>            Assignee: Reuven Lax
>
> when using PubsubIO.writeProtos(protoMessage), the PubsubMessage is created in the background
and there is no way to specify the attributes of the message.  This makes the method useless
if a user wants to then use the withTimestampAttribute() or withIdAttribute() of the writer
with anything other than the default timestamp or ID (a common use case).  
> As a workaround the user can manually create the PubsubMessage, but this basically requires
duplication of the writeProtos() logic, which is brittle in the case that the encoding logic
changes.  



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