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From "Andrew Serff (JIRA)" <>
Subject [jira] Created: (VFS-116) Add Write capability to RandomAccessContent for all providers
Date Thu, 08 Mar 2007 04:27:24 GMT
Add Write capability to RandomAccessContent for all providers

                 Key: VFS-116
             Project: Commons VFS
          Issue Type: Improvement
    Affects Versions: 1.0, 1.1
         Environment: Java 1.5 / any os
            Reporter: Andrew Serff

Writing to RandomAccessContent seems to only work for the File provider.  Reading works for
all it seems, just not writing.  The main ones I'm worried about are ftp and sftp.  Here is
what I know:
FtpRandomAccessContent and SftpRandomAccessContent both extend from AbstractRandomAccessStreamContent.
 (The Http one does too, but I'm not interested in that one right now.)
AbstractRandomAccessStreamContent extends from RandomAccessContent which only exposes the
read methods and throws UnsupportedOperationExceptions for all the write methods.  

If you just add the write methods to AbstractRandomAccessStreamContent (calling getDataOutputStream().write*(v))
and then add an abstract method getDataOutputStream() to it, the subclasses will need to implement
You also need to add the RANDOM_ACCESS_WRITE Capability to the SFTP and FTP FileProviders.

I have been trying to do this tonight but I'm not having much luck with getting anything to
write with both FTP and SFTP.  I'm unfamiliar with JSch and Commons FTP, so I might just be
missing something.  If anyone could help, I'd be glad to submit a fix for this "Improvement"
issue.  I will either attach my changed files or add some comments to this issue to show the
changes I have made.  

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