@Override
public synchronized void unsubscribe(String item) throws SubscriptionException, FailureException {
String val;
if ((val = Constants.getVal(item, Constants.USER_SUBSCRIPTION)) != null) {
logger.debug("User unsubscription: " + item);
chat.stopUserMessageListen(val);
} else if ((val = Constants.getVal(item, Constants.ROOMCHATLIST_SUBSCRIPTION)) != null) {
logger.debug("Room list unsubscription: " + val);
chat.stopRoomListen(val);
} else if ((val = Constants.getVal(item, Constants.ROOMCHAT_SUBSCRIPTION)) != null) {
logger.debug("Room chat unsubscription: " + val);
chat.stopRoomChatListen(val);
} else {
logger.debug("User status unsubscription: " + item);
chat.stopUserStatusListen(item);
}
}
@Override
public synchronized void subscribe(String item, Object handle, boolean needsIterator)
throws SubscriptionException, FailureException {
String val;
if ((val = Constants.getVal(item, Constants.USER_SUBSCRIPTION)) != null) {
// DISTINCT used only to signal presence
logger.debug("User subscription: " + item);
// user is created on subscription and destroyed on unsubscription
chat.startUserMessageListen(val, handle);
} else if ((val = Constants.getVal(item, Constants.ROOMCHATLIST_SUBSCRIPTION)) != null) {
// COMMAND contains users of a certain room
logger.debug("Room list subscription: " + val);
chat.startRoomListen(
val,
handle); // will add the room if non-existent (room may exist if a user entered it even if
// no one is listening to it)
} else if ((val = Constants.getVal(item, Constants.ROOMCHAT_SUBSCRIPTION)) != null) {
// DISTINCT chat for the room
logger.debug("Room chat subscription: " + val);
chat.startRoomChatListen(val, handle);
} else {
// MERGE subscription for user status and nick + their commands and positions
logger.debug("User status subscription: " + item);
chat.startUserStatusListen(item, handle);
}
}
