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From "Micah Whitacre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-293) Injection of reader into AvroRecordReader
Date Tue, 19 Nov 2013 02:05:20 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826072#comment-13826072
] 

Micah Whitacre commented on CRUNCH-293:
---------------------------------------

The changes look good to me.  The one part I'm still trying to think through is if configuring
the custom factory on a global scope vs per source is sufficient.  Generally most teams will
have a single custom implementation of a custom DataReader but there might be cases where
they need to pull sources from multiple teams and need a custom reader.

> Injection of reader into AvroRecordReader
> -----------------------------------------
>
>                 Key: CRUNCH-293
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-293
>             Project: Crunch
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.7.0, 0.8.0
>            Reporter: Micah Whitacre
>            Assignee: Micah Whitacre
>         Attachments: CRUNCH-293.patch, CRUNCH-293_v2.patch
>
>
> With CRUNCH-243, I wanted to support injecting custom readers to handle the cases like
passivity between Avro Schema.  The changes made however were not complete as we also need
to be able to inject a reader into the AvroRecordReader which constructs its own SpecificDatumReader.
> We could create a SpecificDataFactory which emulates the ReflectDataFactory.  Or simplify
to a single DataFactory which will create either Reflect/Specific/Generic.  Thoughts?



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