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https://issues.apache.org/jira/browse/VFS-257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Franklin updated VFS-257:
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Attachment: VFS-257.patch
I've attached a patch to solve the issue which will lazily call the MDTM
command and cache the response.
> FTP: Add support for MDTM to get more accurate last modified times
> ------------------------------------------------------------------
>
> Key: VFS-257
> URL: https://issues.apache.org/jira/browse/VFS-257
> Project: Commons VFS
> Issue Type: Improvement
> Affects Versions: 1.1
> Reporter: Andrew Franklin
> Attachments: VFS-257.patch
>
>
> The current FTPFileObject implementation delegates to the commons-net FtpFile
> to get the last modified date. Unfortunately this value is parsed from the
> result of the LIST command, which suffers from a few issues:
> * NET-212 - LMDs aren't persistable beyond a year as commons-net has to guess
> the year in many cases, based on the current year.
> * Most FTP parser formats are only accurate to the minute, and sometimes only
> the nearest day
> * Sometimes the FTP server will change the time format for a single file over
> time, changing the resulting lmd.
> By using the MDTM command you're able to get a last modified date that's
> accurate to the second (and sometimes even millisecond) and doesn't suffer
> from the above issues. As I understand it, the command is implemented in
> commons-net 2.1?
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