private void handleSimServerRequests(MessageWrapper wrappedMessage, ConsoleTcpListenerArgs args)
{
//retreive actual message payload and handle the different message types
switch (wrappedMessage.MessageType)
{
case MessageBase.MESSAGE_JOIN_REQUEST:
XMLSimJoinRequest message = (XMLSimJoinRequest)wrappedMessage.Message;
if (message.valid())
{
try
{
//accept the connection from the SA
XMLSimJoinAcceptance joinAccept = new XMLSimJoinAcceptance();
joinAccept.ParticipantId = message.ParticipantId; //echo back
joinAccept.ParticipantIp = message.ParticipantIp;
joinAccept.ElementId = SimulationManagementHelper.generateElementId();
joinAccept.RequestConfig = true;
//wrap XML message with DEM header and send out
MessageWrapper wrap = new MessageWrapper();
wrap.ApplicationId = _simConfig.APP_ID;
wrap.ApplicationRole = _simConfig.APP_ROLE;
wrap.MessageType = MessageBase.MESSAGE_JOIN_ACCEPTANCE;
wrap.Message = joinAccept;
System.Console.WriteLine("Sending: \n" + wrap.toXmlString());
byte[] data = Encoding.UTF8.GetBytes(wrap.toXmlString());
NetworkStream netstream;
netstream = args.Client.GetStream();
netstream.Write(data, 0, data.Length);
String incoming = String.Empty;
bool done = false;
System.Console.WriteLine("Waiting for SA ");
//wait for the config from the SA
while (!done)
{
netstream = args.Client.GetStream();
if (netstream.DataAvailable && netstream != null)
{
data = new Byte[args.Client.ReceiveBufferSize];
netstream.Read(data, 0, (int)args.Client.ReceiveBufferSize);
incoming = Encoding.UTF8.GetString(data);
//System.Console.WriteLine("Received Data"+incoming);
XmlSerializer deserializer = new XmlSerializer(typeof(MessageWrapper));
MessageWrapper incomingWrappedMessage;
//deserialize
using (TextReader reader = new StringReader(incoming))
{
incomingWrappedMessage = (MessageWrapper)deserializer.Deserialize(reader);
}
//accepted to join the simulation, send config
if (String.Equals(incomingWrappedMessage.MessageType, MessageBase.MESSAGE_SIM_APP_CONFIG))
{
System.Console.WriteLine("Received:" + incomingWrappedMessage.toXmlString());
XMLSimApplication current = (XMLSimApplication)incomingWrappedMessage.Message;
//add the SA to the list
SimulationParticipant participant = new SimulationParticipant(current,new NetworkConnectionState(args.Client));
_participantList.Add(current.ParticipantId, participant);
done = true;
if (_participantList.Values.Count > 1)
{
List<KeyValuePair<string,SimulationParticipant>> allParticipants = _participantList.ToList();
List<XMLSimApplication> allApplications = new List<XMLSimApplication>();
//build a list of applications to update the new app that joined
foreach (var app in allParticipants)
{
allApplications.Add(app.Value.SimulationApplication);
}
XMLParticipantList updatedList = new XMLParticipantList();
updatedList.Participants = allApplications;
//wrap XML message with DEM header and send out
wrap = new MessageWrapper();
wrap.ApplicationId = _simConfig.APP_ID;
wrap.ApplicationRole = _simConfig.APP_ROLE;
wrap.MessageType = MessageBase.MESSAGE_UPDATE_PARTICPANT_LIST;
wrap.Message = updatedList;
//notifyParticipants(wrap);//tell everybody
}
}
}
}//end while
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
finally
{
args.Stream.Close();
args.Client.Close();
}
}
break;
}
}
//getsw all tcp messages
public void tcpSimulationServer_MessageReceived(ConsoleTcpListenerArgs args)
{
if (String.IsNullOrEmpty(args.Message))
{
logToConsole("Console Tcp Listener received empty message");
return;
}
XmlSerializer deserializer = new XmlSerializer(typeof(MessageWrapper));
MessageWrapper wrappedMessage;
//deserialize
using (TextReader reader = new StringReader(args.Message))
{
wrappedMessage = (MessageWrapper)deserializer.Deserialize(reader);
}
if (wrappedMessage != null)
handleSimServerRequests(wrappedMessage, args); //handle the message - pass to big switch statement
}