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https://issues.apache.org/jira/browse/MAPREDUCE-2226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973855#action_12973855
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E. Sammer commented on MAPREDUCE-2226:
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I can definitely do that if it makes sense to have it be part of this issue. So:
* all methods except for getInputSplit() should be marked
@InterfaceAudience.Private.
* TaggedInputSplit javadoc should be updated to indicate it exists for MI
functionality.
* MI javadoc should be updated to illustrate the use case of getting at the
original InputSplits when TaggedInputSplit is in use.
Anything else?
> TaggedInputSplit should be public
> ---------------------------------
>
> Key: MAPREDUCE-2226
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2226
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 0.20.1
> Reporter: E. Sammer
> Assignee: E. Sammer
> Attachments: MAPREDUCE-2226.diff
>
>
> Currently it's not possible to get at the original InputSplits when using
> MultipleInputs. This is because TaggedInputSplit (used by
> DelegatingInputFormat used by MultipleInputs) is not public. This means
> things like the following do not work:
> {code}
> public void map(...) {
> FileSplit fis = (FileSplit)((TaggedInputSplit)
> reporter.getInputSplit()).getInputSplit();
> Path p = fis.getPath();
> }
> {code}
> This prevents users from getting at input split specific data.
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