/// <summary>
/// Event firing method.
/// </summary>
/// <param name="frame">The Datagram just received.</param>
protected virtual void OnRaiseDatagramReceivedEvent(DatagramReceivedEventArgs datagramEvent)
{
ThreadPool.QueueUserWorkItem((o) =>
{
// copy the event handler to avoid mid process subscribe/un-subscribe
EventHandler <DatagramReceivedEventArgs> handler = RaiseDatagramReceivedEvent;
// Check if there are any Subscribers
if (handler != null)
{
// Call the Event
handler(this, datagramEvent);
}
}
);
}
protected void OnDatagramReceivedEventHandler(object sender, DatagramReceivedEventArgs a)
{
CANFrame frame = new CANFrame();
if (a.Datagram.Length < 4)
{
ServerMsgLog.WarnFormat("UDP out-of-range, length {0}", a.Datagram.Length);
return;
}
uint msgId = 0;
try
{
// work out what it all meens
// first assume that the datgram is a CNX CAN message
if (BitConverter.IsLittleEndian)
{
Array.Reverse(a.Datagram, 0, 4);
}
msgId = BitConverter.ToUInt32(a.Datagram, 0);
switch (msgId)
{
case (uint)CNXMsgIds.TripProgress:
frame.MailboxId = msgId;
frame.DataFromArray(a.Datagram, 4, a.Datagram.Length - 4);
TripProgressType msgType;
int pathId;
int position;
int?tripNo;
CNXCANMsgHelper.UnpackTripProgress(frame, out msgType, out pathId, out position, out tripNo);
object[] args = { msgType, pathId, position, tripNo };
ServerMsgLog.WarnFormat("UDP Trip Progress {0}, RouteTag {1}, Progress {2}, tripNo {3}.", args);
mCANClient.Send(frame);
break;
case (uint)CNXMsgIds.DeviceCatalogue:
ServerMsgLog.WarnFormat("UDP Re-Cataloge message (0x101).");
// clear our catalogue
mCANServer.ClearDeviceCatalogue();
// put our self into the new catalogue
AddSelfToCatalogue();
// reset catalogues on all equipment.
frame.ClearData();
frame.MailboxId = (uint)CANLib.CNXMsgIds.DeviceCatalogue;
mCANClient.Send(frame);
mCANClient.Send(CNXCANMsgHelper.PackIdentifiers(mCommsServer.CommsAddress, mCommsServer.CompanyTag));
break;
case (uint)CNXMsgIds.TripNone:
case (uint)CNXMsgIds.TripOffRoute:
frame.MailboxId = msgId;
mCANClient.Send(frame);
ServerMsgLog.WarnFormat("UDP {0}.", (CNXMsgIds)msgId);
break;
case (uint)CNXMsgIds.TripOnRoute:
frame.MailboxId = msgId;
frame.DataFromArray(a.Datagram, 4, a.Datagram.Length - 4);
ServerMsgLog.WarnFormat("UDP {0}.", frame.ToString());
mCANClient.Send(frame);
break;
case (uint)RTTMesg.RTTInMsgIds.FirmwareBuildNos:
ServerMsgLog.WarnFormat("UDP firmware version (0x1001) length {0}\n{1}.", a.Datagram.Length, CommsServer.HexDump(a.Datagram, a.Datagram.Length));
if (a.Datagram.Length > 5)
{
StartFirmwareManagement(a.Datagram, 4);
}
break;
case (uint)RTTMesg.RTTInMsgIds.ResourceBuildNos:
ServerMsgLog.WarnFormat("UDP configuration message (0x1002) length {0}\n{1}.", a.Datagram.Length, CommsServer.HexDump(a.Datagram, a.Datagram.Length));
if (a.Datagram.Length > 5)
{
byte[] versions = new byte[a.Datagram.Length - 4];
Array.Copy(a.Datagram, 4, versions, 0, versions.Length);
StartDeviceConfigurationManagement(versions);
}
break;
case (uint)RTTMesg.RTTInMsgIds.CompanyTag:
mCommsServer.CompanyTag = a.Datagram[4];
ServerMsgLog.WarnFormat("UDP CompanyTag {0}", mCommsServer.CompanyTag);
mCANClient.Send(CNXCANMsgHelper.PackIdentifiers(mCommsServer.CommsAddress, mCommsServer.CompanyTag));
break;
case (uint)RTTMesg.RTTInMsgIds.DriverLogonOK:
ServerMsgLog.WarnFormat("UDP {0}.", (RTTMesg.RTTInMsgIds)msgId);
frame.MailboxId = (uint)CNXMsgIds.LogonResult;
frame.Data = new byte[1];
frame.Data[0] = (byte)LogonState.LogonOK;
mCANClient.Send(frame);
break;
case (uint)RTTMesg.RTTInMsgIds.DriverLogonFail:
ServerMsgLog.WarnFormat("UDP {0}.", (RTTMesg.RTTInMsgIds)msgId);
frame.MailboxId = (uint)CNXMsgIds.LogonResult;
frame.Data = new byte[1];
frame.Data[0] = (byte)LogonState.LogonFailed;
mCANClient.Send(frame);
break;
case (uint)RTTMesg.RTTInMsgIds.DriverLogoff:
ServerMsgLog.WarnFormat("UDP {0}.", (RTTMesg.RTTInMsgIds)msgId);
BeginSendTransientBlock(Block.DriverLogon, new byte[] { 0 });
break;
case (uint)RTTMesg.RTTInMsgIds.DriverMesg2:
ServerMsgLog.WarnFormat("UDP {0}\n{1}.", (RTTMesg.RTTInMsgIds)msgId, CommsServer.HexDump(a.Datagram, a.Datagram.Length));
//TransientBlock block = new TransientBlock(mCANClient, (byte)Block.MessageToDriver);
byte[] blockData = new byte[a.Datagram.Length - 4];
Array.Copy(a.Datagram, 4, blockData, 0, blockData.Length);
//block.Send(blockData, false);
BeginSendTransientBlock(Block.MessageToDriver, blockData);
break;
case (uint)RTTMesg.RTTInMsgIds.VehicleInfo:
mCommsServer.CompanyTag = a.Datagram[4];
mCommsServer.VehicleId = Encoding.ASCII.GetString(a.Datagram, 5, a.Datagram.Length - 5);
ServerMsgLog.WarnFormat("UDP VehicleInfo {0} {1}", mCommsServer.CompanyTag, mCommsServer.VehicleId);
mCANClient.Send(CNXCANMsgHelper.PackIdentifiers(mCommsServer.CommsAddress, mCommsServer.CompanyTag));
break;
case (uint)RTTMesg.RTTInMsgIds.FlushData:
ServerMsgLog.WarnFormat("UDP Flush APC");
frame.MailboxId = (uint)CNXMsgIds.ResetLoading;
frame.DataFromArray(a.Datagram, 4, a.Datagram.Length - 4);
mApc.FrameReceivedEventHandler(null, new FrameReceivedEventArgs(frame));
mCANClient.Send(frame);
// force daily restart as requested by Iris
//if (mTracker.mIris != null)
// mTracker.mIris.Restart();
break;
default:
ServerMsgLog.WarnFormat("UDP Unknown id {0} length {1}\n{2}.", msgId, a.Datagram.Length, CommsServer.HexDump(a.Datagram, a.Datagram.Length));
break;
}
}
catch (Exception e)
{
ServerMsgLog.ErrorFormat("Datagram {0} Handler Error : {1}", msgId, e.ToString());
}
}