private void userLeft(UserLeft message) {
log.debug("User left from meeting[{}]", message.meetingId);
Meeting m = getMeeting(message.meetingId);
if (m != null) {
User user = m.userLeft(message.userId);
if(user != null){
log.info("User removed from meeting [" + message.meetingId + "] user [" + user.getFullname() + "]");
Map<String, Object> logData = new HashMap<String, Object>();
logData.put("meetingId", m.getInternalId());