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https://issues.apache.org/jira/browse/AVRO-682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J Chouraria updated AVRO-682:
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Attachment: avro.metadata.datafile.r3.diff
Updated patch to reflect the unmodifiable change. And one simple test case in
TestDataFileMeta checking if the keys list contains the key whose value is
sought.
Any more tests required?
> Expose the DataFile's metadata entirely
> ---------------------------------------
>
> Key: AVRO-682
> URL: https://issues.apache.org/jira/browse/AVRO-682
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.4.1
> Environment: Linux, Java 1.6
> Reporter: Harsh J Chouraria
> Assignee: Harsh J Chouraria
> Priority: Minor
> Fix For: 1.5.0
>
> Attachments: avro.metadata.datafile.r1.diff,
> avro.metadata.datafile.r1.diff, avro.metadata.datafile.r2.diff,
> avro.metadata.datafile.r3.diff
>
> Original Estimate: 0.02h
> Remaining Estimate: 0.02h
>
> Right now, the DataFileReader (DataFileStream actually) only allows one to
> query the meta data of a file by issuing a key. A user who does not know what
> metadata may be stored in the file, has no way to find out by getting a
> list/map of all there is. Perhaps we should provide a way for the user to
> retrieve global metadata info to query it back for values.
> Attached a patch (initial) that simply exposes the HashMap that contains the
> metadata after initialization of the data file reader.
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