I flew out of BCN on United on July 17 of 2012, and as of that date, there was a contract lounge there - a decent one I think, by my not-very-experienced lounge experience.
Had a few bottles of booze that you can mix your own drinks, plenty of soft drinks and snacks. a quiet area in the middle serving as sleeping areas for passengers trying to catch some sleep. I'd rate this lounge as slightly above the contract lounge at SIN.