[JDEV] Creating a presence server component?

[Sylvain Roberdeau]

Hi,

    I'm reading sample code, docs, but I'm not sure to understand if it
s possible to create a module or a component only to receive user's
presence.
    This is a test project for me to produce a realtime MRTG service to
count activity of a Jabber Server.

    And other basic XML tag (message, iq,...)?
    I wonder whether  it's possible to receive these data without to
disrupt other module or components.
    I'm looking for example or sample code...

Thank you

Sylvain