internal TraCIResult[] SendMessage(TraCICommand command)
{
if (!_client.Connected)
{
return(null);
}
var msg = TraCIDataConverter.GetMessageBytes(command);
_client.Client.Send(msg);
try
{
var bytesRead = _stream.Read(_receiveBuffer, 0, 32768);
if (bytesRead < 0)
{
// Read returns 0 if the client closes the connection
throw new IOException();
}
var response = _receiveBuffer.Take(bytesRead).ToArray();
#if NLOG
_logger.Trace(" << {0}", BitConverter.ToString(response));
#endif
var trresponse = TraCIDataConverter.HandleResponse(response);
return(trresponse?.Length > 0 ? trresponse : null);
}
catch
{
return(null); // TODO
}
}
// deprecated: below method only works with an outdated patched version of SUMO
//public void SetSingleTrafficLightState(string trafficLightId, string signalgroup, char singlestate)
//{
// var command = new TraCICommand { Identifier = TraCIConstants.CMD_SET_TL_VARIABLE };
// var bytes = new List<byte> { TraCIConstants.TL_RED_YELLOW_GREEN_SINGLESTATE };
// bytes.AddRange(TraCIDataConverter.GetTraCIBytesFromASCIIString(trafficLightId));
// bytes.Add(TraCIConstants.TYPE_STRING);
// bytes.AddRange(BitConverter.GetBytes((signalgroup + ' ' + singlestate).Length).Reverse());
// bytes.AddRange(Encoding.ASCII.GetBytes(signalgroup + ' ' + singlestate));
//
// command.Contents = bytes.ToArray();
// // ReSharper disable once UnusedVariable
// var response = SendMessage(command);
//}
#endregion // Set Variable Methods
#region Public Methods
internal TraCIResult[] SendMessage(TraCICommand command)
{
if (!_client.Connected)
{
return(null);
}
var msg = TraCIDataConverter.GetMessageBytes(command);
_client.Client.Send(msg);
try
{
var bytesRead = _stream.Read(_receiveBuffer, 0, 32768);
if (bytesRead < 0)
{
// Read returns 0 if the client closes the connection
throw new IOException();
}
var revLength = _receiveBuffer.Take(4).Reverse().ToArray();
var totlength = BitConverter.ToInt32(revLength, 0);
var response = new List <byte>();
response.AddRange(_receiveBuffer.Take(bytesRead).ToArray());
if (bytesRead != totlength)
{
while (bytesRead < totlength)
{
var innerBytesRead = _stream.Read(_receiveBuffer, 0, 32768);
response.AddRange(_receiveBuffer.Take(innerBytesRead).ToArray());
bytesRead += innerBytesRead;
}
}
//var response = _receiveBuffer.Take(bytesRead).ToArray();
var trresponse = TraCIDataConverter.HandleResponse(response.ToArray());
return(trresponse?.Length > 0 ? trresponse : null);
}
catch
{
return(null); // TODO
}
}
