[Building Sakai] check if a given user has active session?

[Steve Swinsburg]

Hi all,

Is it possible to check if a given user has an active session? Essentially I'd like to know if a user is 'online'.

SessionManager doesn't seem to be able to check any given user, only the current user, or check a Session that you already know about, but I'd need to be able to get the current Session(s) that a user might have first.

cheers,
Steve