private void BroadcastMessage(ChatEventArgs e)
{
ChatEventHandler t = broadcastList;
if (t != null)
{
foreach (ChatEventHandler c in t.GetInvocationList())
{
c.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
}
}
public void Say(string message)
{
try
{
Trace.WriteLine("User " + username + " SAY: " + message + " : start");
if (message == string.Empty)
{
return;
}
ChatEventArgs e = new ChatEventArgs();
e.name = username;
e.msgType = MessageType.Receive;
e.message = message;
BroadcastMessage(e);
Trace.WriteLine("User " + username + " SAY: " + message + " : end");
}
catch (Exception ex)
{
Trace.WriteLine("Servcie SAY method exception: " + ex.Message);
}
}
public string[] Join(string name)
{
string[] list = new string[chatChannelList.Count];
try
{
Trace.WriteLine("User " + name + " join the chat room: start");
username = name;
callback = OperationContext.Current.GetCallbackChannel <IChatCallBack>();
ChatEventArgs e = new ChatEventArgs();
e.name = name;
e.msgType = MessageType.UserEnter;
BroadcastMessage(e);
broadcastList += MessageHandling;
lock (obj)
{
chatChannelList.Keys.CopyTo(list, 0);
}
myHandler = new ChatEventHandler(MessageHandling);
lock (obj)
{
if (!chatChannelList.Keys.Contains(name))
{
chatChannelList.Add(name, myHandler);
}
}
Trace.WriteLine("User " + username + " join the chat room: end");
Console.WriteLine("Callback instance number: " + chatChannelList.Count);
Console.WriteLine("broadcastList Delegete number: " + broadcastList.GetInvocationList().Count());
}
catch (Exception ex)
{
Trace.WriteLine("Servcie join method exception: " + ex.Message);
}
return(list);
}
public string[] Join(string name)
{
string[] list = new string[chatChannelList.Count];
try
{
Trace.WriteLine("User " + name + " join the chat room: start");
username = name;
callback = OperationContext.Current.GetCallbackChannel<IChatCallBack>();
ChatEventArgs e = new ChatEventArgs();
e.name = name;
e.msgType = MessageType.UserEnter;
BroadcastMessage(e);
broadcastList += MessageHandling;
lock (obj)
{
chatChannelList.Keys.CopyTo(list, 0);
}
myHandler = new ChatEventHandler(MessageHandling);
lock (obj)
{
if (!chatChannelList.Keys.Contains(name))
{
chatChannelList.Add(name, myHandler);
}
}
Trace.WriteLine("User " + username + " join the chat room: end");
Console.WriteLine("Callback instance number: " + chatChannelList.Count);
Console.WriteLine("broadcastList Delegete number: " + broadcastList.GetInvocationList().Count());
}
catch (Exception ex)
{
Trace.WriteLine("Servcie join method exception: " + ex.Message);
}
return list;
}
public void Whisper(string name, string message)
{
try
{
Trace.WriteLine("User " + username + " WHISPER: " + message + " : start");
if (name == string.Empty || message == string.Empty)
{
return;
}
ChatEventArgs e = new ChatEventArgs();
e.name = name;
e.msgType = MessageType.ReceiveWhisper;
e.message = message;
chatChannelList[name](username, e);
Trace.WriteLine("User " + username + " WHISPER: " + message + " : end");
}
catch (Exception ex)
{
Trace.WriteLine("Servcie Whisper method exception: " + ex.Message);
}
}
public void Leave()
{
try
{
Trace.WriteLine("User " + username + " leave the chat room: start");
lock (obj)
{
if (chatChannelList.Keys.Contains(username))
{
chatChannelList.Remove(username);
}
}
broadcastList -= myHandler;
ChatEventArgs e = new ChatEventArgs();
e.name = username;
e.msgType = MessageType.UserLeave;
BroadcastMessage(e);
//System.Threading.Thread.Sleep(3000);
Trace.WriteLine("User " + username + " leave the chat room: end");
}
catch (Exception ex)
{
throw ex;
}
}
private void MessageHandling(object sender, ChatEventArgs e)
{
try
{
switch (e.msgType)
{
case MessageType.UserEnter:
callback.UserEnter(e.name);
break;
case MessageType.UserLeave:
callback.UserLeave(e.name);
break;
case MessageType.Receive:
callback.Receive(e.name, e.message);
break;
case MessageType.ReceiveWhisper:
callback.ReceiveWhisper((string)sender, e.message);
break;
}
}
catch (Exception ex)
{
Trace.WriteLine("Servcie MessageHandling method exception: " + ex.Message);
Leave();
}
}
private void BroadcastMessage(ChatEventArgs e)
{
ChatEventHandler t = broadcastList;
if (t != null)
{
foreach (ChatEventHandler c in t.GetInvocationList())
{
c.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
}
}
public void Whisper(string name, string message)
{
try
{
Trace.WriteLine("User " + username + " WHISPER: " + message + " : start");
if (name == string.Empty || message == string.Empty)
return;
ChatEventArgs e = new ChatEventArgs();
e.name = name;
e.msgType = MessageType.ReceiveWhisper;
e.message = message;
chatChannelList[name](username, e);
Trace.WriteLine("User " + username + " WHISPER: " + message + " : end");
}
catch (Exception ex)
{
Trace.WriteLine("Servcie Whisper method exception: " + ex.Message);
}
}
public void Say(string message)
{
try
{
Trace.WriteLine("User " + username + " SAY: " + message + " : start");
if (message == string.Empty)
return;
ChatEventArgs e = new ChatEventArgs();
e.name = username;
e.msgType = MessageType.Receive;
e.message = message;
BroadcastMessage(e);
Trace.WriteLine("User " + username + " SAY: " + message + " : end");
}
catch (Exception ex)
{
Trace.WriteLine("Servcie SAY method exception: " + ex.Message);
}
}
