users@jersey.java.net

Re: [Jersey] Callback hook for when http response finished?

From: Igor Minar <iiminar_at_gmail.com>
Date: Wed, 8 Jul 2009 22:04:08 -0700

If you are running your app on glassfish v3 or grizzly webserver, you
could use grizzly-sendfile[1] to send the tmp file to the client and
create a plugin for grizzly-sendfile that will delete the file once
the download is finished.

In our resource you would just return an empty response with the X-
Sendfile header set to the location of the tmp file.

/i

[1] http://grizzly-sendfile.kenai.com

On Jul 8, 2009, at 4:50 PM, Chris Wilkes wrote:

> I'm building up a temp file to return to the user after they hit a
> POST
> method in jersey. I'd like to delete that temp file after the user
> has
> finished downloading the file.
>
> Is there a way to get a notification when a user has finished their
> download? I'd like to not have to change the return type of my method
> from File to do this.
>
> What do other people do in this situation? Currently I delete the
> file
> in a background thread that runs on a timer and deletes old files.
> I'm
> worried that if I rely on File.deleteOnExit() that I'll build up
> thousands of temp files.
>
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