If I've got this correctly, you want someone to upload a file (through Internat) and you want to get notified on your terminal connected to the server of that service, correct?

If that's the case then, you might have various choices, but (as this is a J2EE forum) you can user JMS messaging and you can listen (subscribe) to certain events (file upload)?

client front-end could be an applet to send data (file) to the host that it has been loaded from or may be a simple JSP page, and then JMS implementation in background to notify relevant components. you might need another client application  on your terminal to get notified by JMS client on the event of upload complete.

how about this to start a discussion?