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From "Goldstein Lyor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-108) Add upload monitoring to sftp
Date Wed, 25 May 2016 09:08:12 GMT

    [ https://issues.apache.org/jira/browse/SSHD-108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15299712#comment-15299712

Goldstein Lyor commented on SSHD-108:

I am not sure I understand what you mean, but I think you can be informed of session issues
by registering a _SessionListener_. The _onFailed_ method you mention eventually propagates
to _sessionException_ callback so you can distinguish between sessions that closed normally
or were aborted. Please note that _sessionClosed_ is *always* called - even for aborted sessions,
so it is up to you "mark" the session as aborted when _sessionException_ is called and then
examine the mark in _sessionClosed_. You can easily do this by using the session's _get/setAttribute_
methods - define your own _AttributeKey_ and values and then use it. If you wish to monitor
only SFTP sessions, then register an _SftpEventListener_ and the monitoring session listener
when _initialized_ method is called to inform you of a new SFTP session (and if you really
want to clean up after you, remove the session listener when _destroying_ is called).

I think this pretty much covers how I would approach the scenario you describe.

> Add upload monitoring to sftp
> -----------------------------
>                 Key: SSHD-108
>                 URL: https://issues.apache.org/jira/browse/SSHD-108
>             Project: MINA SSHD
>          Issue Type: Improvement
>    Affects Versions: 0.5.0
>            Reporter: Richard Evans
>            Assignee: Goldstein Lyor
>            Priority: Minor
>             Fix For: 1.1.0
> We have sshd integrated into our application and sftp is working fine.  One of the requirements
is to initiate some action when a file upload it complete.  I have made this work by implementing
handleClose in my SshFile implementation and performing the action if createOutputStream had
been called previously.  This seems a bit ugly though; it might be nicer if there was some
plug in mechanism to monitor file transfers.
> Ideally the monitor would be able to distinguish between a successful upload and a cancelled
one (via ctrl-c at the client), but a quick perusal of the sftp stuff seems to inidicate that
this is not possible. 

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