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https://issues.apache.org/jira/browse/HADOOP-3518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12603540#action_12603540
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Tom White commented on HADOOP-3518:
-----------------------------------

Like Hadoop, NIO.2 identifies filesystems by URI scheme (see 
http://openjdk.java.net/projects/nio/javadoc/java/nio/file/spi/FileSystemProvider.html).
 A minor difference with Hadoop is that in NIO.2 the file operations are on the 
Path class 
(http://openjdk.java.net/projects/nio/javadoc/java/nio/file/Path.html), not the 
FileSystem class (but this doesn't preclude writing a NIO.2 provider for 
Hadoop, of course).

> Want NIO.2 (JSR 203) file system provider for Hadoop FileSystem
> ---------------------------------------------------------------
>
>                 Key: HADOOP-3518
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3518
>             Project: Hadoop Core
>          Issue Type: Wish
>          Components: fs
>            Reporter: Tom White
>
> JSR 203 (aka "NIO.2" or "more NIO") is defining a rich set of classes for 
> interacting with files and file systems (as well as other NIO enhancements). 
> It is scheduled to be released as a part of Java 7.
> This motivation behind this issue is to see if NIO.2 can be used as an 
> interface to Hadoop's FileSystem class before NIO.2 is finalized, thus giving 
> Hadoop developers an opportunity to influence NIO's design (if necessary). 
> Also, learning more about NIO.2 may inform design decisions for Hadoop 
> filesystems.
> The starting point for this work should be the java.nio.file.spi package 
> (http://openjdk.java.net/projects/nio/javadoc/java/nio/file/spi/package-summary.html).
>  There is an example of a filesystem provider (for ZIP files) linked from the 
> OpenJDK page for NIO.2: http://openjdk.java.net/projects/nio/. This page also 
> has other useful links, such as a JavaOne talk, javadoc and source code.

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