/// <summary>
/// Gets the type of the GPS tracker that connected
/// </summary>
/// <param name="message"></param>
/// <param name="bytesRead"></param>
/// <param name="client"></param>
/// <returns></returns>
public static IGPSTracker GetGPSTracker(byte[] message, int bytesRead, object client)
{
Utilities.writeLine("Debug 6: Processing GPS tracker type");
IGPSTracker _tracker = null;
char _1stChar = Convert.ToChar(message[0]);
// Trim leading nulls from byte array .... some versions of the firmware needs this!
if (_1stChar == '\0')
{
byte[] theNew = new byte[message.Length];
Buffer.BlockCopy(message, 1, theNew, 0, message.Length - 1);
message = theNew;
}
ASCIIEncoding encoder = new ASCIIEncoding();
Utilities.writeLine("Debug 6.2: " + encoder.GetString(message, 0, bytesRead));
_1stChar = Convert.ToChar(message[0]);
char _2ndChar = Convert.ToChar(message[1]);
char _3rdChar = Convert.ToChar(message[2]);
bool isInRange = _3rdChar >= 'A' && _3rdChar <= 'z';// range given in the spec for VT340
Utilities.writeLine("Debug 6.5: 1st char: " + _1stChar + " 2nd char: " + _2ndChar + " 3rd char: " + _3rdChar);
if (_1stChar == '(')
{
Utilities.writeLine("Debug 7: Type is GPS518");
_tracker = new GPS518();
}
else
if (_1stChar == '$' && _2ndChar == '$' && !isInRange)
{
Utilities.writeLine("Debug 8: Type is VT300");
_tracker = new VT300(client);
}
else
if (_1stChar == '$' && _2ndChar == '$' && isInRange)
{
Utilities.writeLine("Debug 9: Type is VT340");
_tracker = new VT340(client);
}
else
if (_1stChar == '$')
{
Utilities.writeLine("Debug 8: Type is VT300 - one of the weird ones");
_tracker = new VT300(client);
}
else
{
Utilities.writeLine("Debug 9.5: 1st char: " + _1stChar + " 2nd char: " + _2ndChar + " 3rd char: " + _3rdChar);
Utilities.writeLine("Debug 10: Type of tracker is unidentified");
}
return(_tracker);
}
private void HandleClientComm(object client)
{
TcpClient tcpClient = (TcpClient)client;
NetworkStream clientStream = tcpClient.GetStream();
byte[] message = new byte[4096];
int bytesRead;
while (true)
{
bytesRead = 0;
IGPSTracker _tracker = null;
try
{
//blocks until a client sends a message
bytesRead = clientStream.Read(message, 0, 4096);
Utilities.writeLine("Debug 3: Time: " + DateTime.Now + " data read: " + bytesRead);
}
catch (Exception e)
{
//a socket error has occured
Utilities.writeLine("Error 1: " + e.Message);
Utilities.writeLine("Error 2: " + e.StackTrace);
break;
}
if (bytesRead == 0)
{
Utilities.writeLine("Dubug 4: Sorry, no data read, disconnecting");
//the client has disconnected from the server
break;
}
//message has successfully been received
ASCIIEncoding encoder = new ASCIIEncoding();
Utilities.writeLine("Debug 5: " + encoder.GetString(message, 0, bytesRead));
try
{
if (_tracker == null)
{
_tracker = Management.GetGPSTracker(message, bytesRead, client);
}
_tracker.RecievedMessage(message, bytesRead);
_tracker.SendMessages(tcpClient);
}
catch (Exception e)
{
Utilities.writeLine("Error 3: " + e.Message);
Utilities.writeLine("Error 4: " + e.StackTrace);
Utilities.writeLine("Error data: " + encoder.GetString(message, 0, bytesRead));
}
}
Utilities.writeLine("Debug 100: Closing TCP Client");
tcpClient.Close();
}
private void HandleClientComm(object client)
{
TcpClient tcpClient = (TcpClient)client;
NetworkStream clientStream = tcpClient.GetStream();
byte[] message = new byte[4096];
int bytesRead;
while (true)
{
bytesRead = 0;
IGPSTracker _tracker = null;
try
{
//blocks until a client sends a message
bytesRead = clientStream.Read(message, 0, 4096);
System.Diagnostics.Debug.WriteLine("Time: " + DateTime.Now + " data read: " + bytesRead);
}
catch (Exception e)
{
//a socket error has occured
System.Diagnostics.Debug.WriteLine(e.Message);
System.Diagnostics.Debug.WriteLine(e.StackTrace);
break;
}
if (bytesRead == 0)
{
System.Diagnostics.Debug.WriteLine("Sorry, no data read, disconnecting");
//the client has disconnected from the server
break;
}
//message has successfully been received
ASCIIEncoding encoder = new ASCIIEncoding();
System.Diagnostics.Debug.WriteLine(encoder.GetString(message, 0, bytesRead));
try
{
if (_tracker == null)
{
_tracker = Management.GetGPSTracker(message, bytesRead, client);
}
_tracker.RecievedMessage(message, bytesRead);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
System.Diagnostics.Debug.WriteLine(e.StackTrace);
eventLog1.WriteEntry("MyGPS Error processing received message. :" + e.Message, EventLogEntryType.Error);
}
}
tcpClient.Close();
}
public BillCalculator(IGPSTracker gpsTracker, IDispatchOnUIThread dispatcher)
{
_gpsTracker = gpsTracker;
_gpsTracker.StatusChanged += OnGeoLocatorStatusChanged;
_gpsTracker.PositionChanged += OnPositionChangedForeground;
_dispatcher = dispatcher;
CostsPerKm = 0;
//Register messages from App.xaml.cs telling if app is running in foreground or in background
IMvxMessenger messenger = Mvx.Resolve<IMvxMessenger>();
messenger.Subscribe<BackgroundRunningStatusMessage>(OnBackgroundRunningMessageReceived);
}
private void HandleClientComm(object udpMessage)
{
// this is for testing TODO - we need to change this to work with sending back data as udp
// only done to test UDP reciving
TcpClient client = new TcpClient();
byte[] bytes = (byte[])udpMessage;
IGPSTracker _tracker = null;
if (bytes.Length == 0)
{
Utilities.writeLine("Dubug 4: Sorry, no data read, disconnecting");
//the client has disconnected from the server
}
else
{
//message has successfully been received
ASCIIEncoding encoder = new ASCIIEncoding();
Utilities.writeLine("Debug 5: " + encoder.GetString(bytes, 0, bytes.Length));
try
{
if (_tracker == null)
{
_tracker = Management.GetGPSTracker(bytes, bytes.Length, client);
}
_tracker.RecievedMessage(bytes, bytes.Length);
}
catch (Exception e)
{
Utilities.writeLine("Error 3: " + e.Message);
Utilities.writeLine("Error 4: " + e.StackTrace);
Utilities.writeLine("Error data: " + encoder.GetString(bytes, 0, bytes.Length));
}
}
}
