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Date: Fri, 23 Aug 2013 19:37:52 +0000 (UTC)
From: "Chris Nauroth (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.12665067.1377188419237.24877.1377286672865@arcas>
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Subject: [jira] [Commented] (HADOOP-9897) Add method to get path start
 position without drive specifier in o.a.h.fs.Path
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    [ https://issues.apache.org/jira/browse/HADOOP-9897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13748911#comment-13748911 ] 

Chris Nauroth commented on HADOOP-9897:
---------------------------------------

It looks like this patch won't work now that HADOOP-9887 has been committed.  That patch added another call to {{Path#isWindowsAbsolutePath}}.

This is a public static method on a {{Public}} and {{Stable}} annotated class, so changing this method signature would be backwards-incompatible.  A safer change would be to handle this just as an internal refactoring within {{Path}}, and keep the public method signatures the same.
                
> Add method to get path start position without drive specifier in o.a.h.fs.Path  
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-9897
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9897
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>            Priority: Trivial
>         Attachments: HADOOP-9897.v1.patch
>
>
> There are a lot of code in Path to get start position after skipping drive specifier, like:
> {code}
>     int start = hasWindowsDrive(uri.getPath()) ? 3 : 0;
> {code}
> Also there is a minor bug in mergePaths:
> mergePath("/", "/foo") will yield Path("//foo") which will be parsed as uri authority, not path.

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