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From "Benjamin Piwowarski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (VFS-422) Allows to create other channels in SftpFileSystem
Date Thu, 21 Jun 2012 08:55:43 GMT

    [ https://issues.apache.org/jira/browse/VFS-422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398297#comment-13398297
] 

Benjamin Piwowarski commented on VFS-422:
-----------------------------------------

Please find a patch for this new functionality (along with tests & copyright information)

A few comments on the patch:
- SftpFileSystem has a counter for externally opened channels (and a read access to it in
order to test the new functionality)
- I had to create a CommonsVFSChannelHelper in the com.jcraft.jsch package in order to get
access to package protected classes.
- I added a new test case so that both the creation and the counter are tested, so that the
function does not break in future versions.
                
> Allows to create other channels in SftpFileSystem
> -------------------------------------------------
>
>                 Key: VFS-422
>                 URL: https://issues.apache.org/jira/browse/VFS-422
>             Project: Commons VFS
>          Issue Type: Improvement
>    Affects Versions: 2.0
>         Environment: Any
>            Reporter: Benjamin Piwowarski
>         Attachments: 0001-SftpFileSystems-allows-opening-external-channels.patch
>
>   Original Estimate: 3h
>  Remaining Estimate: 3h
>
> In the software I am writing, I need to execute commands when the filesystems "allows"
it, i.e. local or via ssh (i.e. sftp filesystem). 
> For a local filesystem, I can easily do this, but for Sftp, there is no way to get a
channel different than the SFTP on, so it would be great if other channels could be open.
> I could submit a patch that would:
> 1) Allows a call to session.openChannel(String type) [following getChannel()]
> 2) Overwrite isReleaseable to keep the filesystem open if some external channels are
open

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