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https://issues.apache.org/jira/browse/LUCENE-3539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13138694#comment-13138694
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Robert Muir commented on LUCENE-3539:
-------------------------------------
Some more thoughts:
* maybe IndexInput should have a ctor like IndexInput(String
resourceDescription)
* then, in *all* error messages (e.g. read past EOF) we could include this, for
better error descriptions
* when directories call openInput they could pass whatever they want (e.g.
filename), and CFS could include the "real" file within cfs
* we could declare this as just an opaque string describing the indexinput
(yeah and II could use it in its toString() as well)
* if we do this, i think it should be non-null (e.g. in 3.x we add no-arg ctor
that forwards to "no additional details" or whatever)
If we did it consistently like this, i think it could improve error messages
and debugging and be a pretty clean change.
> IndexFormatTooOld/NewExc should try to include fileName + directory when
> possible
> ---------------------------------------------------------------------------------
>
> Key: LUCENE-3539
> URL: https://issues.apache.org/jira/browse/LUCENE-3539
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 3.5, 4.0
>
> Attachments: LUCENE-3539.patch
>
>
> (Spinoff from http://markmail.org/thread/t6s7nn3ve765nojc )
> When we throw a too old/new exc we should try to include the full path to the
> offending file, if possible.
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