Long user_level = userManager.getUserLevelByID(users_id);
if (authLevelUtil.checkUserLevel(user_level)) {
List<Server> serverList = serverDao.getActiveServers();
long minimum = -1;
Server result = null;
HashMap<Server, List<Long>> activeRoomsMap = new HashMap<Server, List<Long>>();
for (Server server : serverList) {
List<Long> roomIds = sessionManager.getActiveRoomIdsByServer(server);
if (roomIds.contains(roomId)) {
// if the room is already opened on a server, redirect the user to that one,