We had an xml importer/exporter at one point, but it has been removed. At this time, we have no mass import tool to do what you are asking. However, this would be a pretty straightforward professional service engagement to get this in. If you are interested, just let us know.
Given that a version of the code is floating around in Jive Sfw somewhere if you can get back to me on either obtaining an older version of the software that still has this in it or a quote to enable this in the current version (upgrade friendly given your rapid release schedule) I will appreciate it. Just respond to my email for this id.
Just making sure that you're talking about Clearspace and not Jive Forums, right? If so, Clearspace did have that functionality: you pointed it to a directory on the server's file system and it would attempt to import all the files from said directory into a space, optionally tagging each file as it was imported. It was removed back in May, although I can't find the history on why it was removed. We don't have it on the board right now, although I believe it is something we'll get around to completing eventually.
The ability to import documents seems to be something that would be rather important. I know that we need it if we are to implement a clearspace deployment large or small.
Did you ever get a quote back on this? Is it planned for a future release?