[jira] [Commented] (LUCENE-4848) Fix Directory implementations to use NIO2 APIs

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[jira] [Commented] (LUCENE-4848) Fix Directory implementations to use NIO2 APIs

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/LUCENE-4848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607652#comment-13607652 ]

Uwe Schindler commented on LUCENE-4848:
---------------------------------------

bq. So maybe we should just nuke this thing completely and let NIO and SimpleFS just be their own thing.

I had the same idea, let's do this! Its easy to do. The abstract FSIndexInput just adds some close and filesize stuff that could leave in each class. The generics also have a backside: a CAST on every access. I know newer JVMs are optimizing that away, but its bad ptractice on inner loops (like synthetic accessor methods caused by private inner classes).
               

> Fix Directory implementations to use NIO2 APIs
> ----------------------------------------------
>
>                 Key: LUCENE-4848
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4848
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Michael Poindexter
>            Assignee: Uwe Schindler
>            Priority: Minor
>         Attachments: jdk7directory.zip, LUCENE-4848-MMapDirectory.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch, LUCENE-4848.patch.txt
>
>
> I have implemented 3 Directory subclasses using NIO2 API's (available on JDK7).  These may be suitable for inclusion in a Lucene contrib module.
> See the mailing list at http://lucene.markmail.org/thread/lrv7miivzmjm3ml5 for more details about this code and the advantages it provides.
> The code is attached as a zip to this issue.  I'll be happy to make any changes requested.  I've included some minimal smoke tests, but any help in how to use the normal Lucene tests to perform more thorough testing would be appreciated.

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