UserManager umgr = WebloggerFactory.getWeblogger().getUserManager();
WeblogManager wmgr = WebloggerFactory.getWeblogger().getWeblogManager();
Weblog weblog = wmgr.getWeblog(getInviteId());
// TODO ROLLER_2.0: notify inviter that invitee has accepted invitation
// TODO EXCEPTIONS: better exception handling
umgr.confirmWeblogPermission(weblog, getAuthenticatedUser());
WebloggerFactory.getWeblogger().flush();
} catch (WebloggerException ex) {
log.error("Error handling invitation accept weblog id - "+getInviteId(), ex);
addError("yourWebsites.permNotFound");