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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4371) consider refactoring slicer to indexinput.slice
Date Sat, 17 May 2014 12:19:15 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir updated LUCENE-4371:
--------------------------------

    Attachment: LUCENE-4371.patch

Added missing \@Override

By the way, i noticed something when refactoring the code: slicing/cloning currently has no
safety (except for MMAP). we should think about this for NIO/Simple too: simple range checks
that the slice is in bounds and maybe that the channel.isOpen. CFSDir could check some of
this too, because its "handle" is now an ordinary input. 

But i didn't want to stir up controversy in this refactor (it is unrelated to this patch).
I think there is no performance impact of adding such checks to NIO/Simple because they already
must suffer a buffer refill here anyway. So maybe we can just open a followup.

> consider refactoring slicer to indexinput.slice
> -----------------------------------------------
>
>                 Key: LUCENE-4371
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4371
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Robert Muir
>         Attachments: LUCENE-4371.patch, LUCENE-4371.patch, LUCENE-4371.patch, LUCENE-4371.patch,
LUCENE-4371.patch
>
>
> From LUCENE-4364:
> {quote}
> In my opinion, we should maybe check, if we can remove the whole Slicer in all Indexinputs?
Just make the slice(...) method return the current BufferedIndexInput-based one. This could
be another issue, once this is in.
> {quote}



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