Perhaps you want this:
https://bitcointalk.org/index.php?topic=557866.0And this:
https://bitcointalk.org/index.php?topic=557991.0And this:
2013 Feb, after discussion, mining.subscribe was extended to take 2 arguments, so now it's mining.subscribe(String useragent, sessionid) where sessionid is optional, but if provided must match a previous session's mining.notify subscription id. If the server allows resuming a session, it will give you back the same subscription id and extranonce information.
cgminer handles it. No idea bout the rest.