/// <summary>
/// Add the specified message to the processing queue for sending.
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public bool QueueMessage(BaseMessage msg)
{
// if no listeners then just return.
if (!_listeners.ContainsKey(msg.Name))
{
MessageLogHandler.AddLogEntry(LogEntryType.Send, msg.Name, msg.ToString(), "No listeners are setup. Discarding message!");
return(false);
}
_messageQueue.Enqueue(msg);
return(true);
}
/// <summary>
/// Remove the listener from the specified message type.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="handler"></param>
/// <returns></returns>
public void RemoveListener <T>(MessageListenerDelegate handler) where T : BaseMessage
{
var messageType = typeof(T);
string messageName = messageType.Name;
Assert.IsTrue(_listeners.ContainsKey(messageName), "You are trying to remove a handler that a message type that isn't registered for " + messageName);
List <MessageListenerDelegate> listenerList = _listeners[messageName];
Assert.IsTrue(listenerList.Contains(handler), "You are trying to remove a handler that isn't registered for " + messageName);
listenerList.Remove(handler);
MessageLogHandler.AddLogEntry(LogEntryType.RemoveListener, messageName);
}
/// <summary>
/// Add a listener for the specified message type. Be sure to call RemoveListener when you are done.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="handler"></param>
/// <returns></returns>
public void AddListener <T>(MessageListenerDelegate handler) where T : BaseMessage
{
var messageType = typeof(T);
string messageName = messageType.Name;
if (!_listeners.ContainsKey(messageName))
{
_listeners.Add(messageName, new List <MessageListenerDelegate>());
}
List <MessageListenerDelegate> listenerList = _listeners[messageName];
Assert.IsFalse(listenerList.Contains(handler), "You should not add the same listener multiple times for " + messageName);
listenerList.Add(handler);
MessageLogHandler.AddLogEntry(LogEntryType.AddListener, messageName);
}
/// <summary>
/// Immediately send the specified message to all listeners.
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public bool TriggerMessage(BaseMessage msg)
{
if (!_listeners.ContainsKey(msg.Name))
{
MessageLogHandler.AddLogEntry(LogEntryType.Send, msg.Name, msg.ToString(), "No listeners are setup. Discarding message!");
return(false);
}
List <MessageListenerDelegate> listenerList = _listeners[msg.Name];
for (int i = 0; i < listenerList.Count; ++i)
{
var sent = listenerList[i](msg);
if (msg.SendMode == BaseMessage.SendModeType.SendToFirst && sent)
{
MessageLogHandler.AddLogEntry(LogEntryType.Send, msg.Name, msg.ToString(), "Sent to first listener.");
return(true);
}
}
MessageLogHandler.AddLogEntry(LogEntryType.Send, msg.Name, msg.ToString(), "Sent to " + listenerList.Count + " listeners.");
return(true);
}