/// <summary>
///
/// </summary>
/// <param name="state"></param>
private async void HandelTeltonikaSockets(object state)
{
string imei = string.Empty;
using (var client = ((TcpClient)state))
{
using (NetworkStream stream = ((TcpClient)state).GetStream())
{
try
{
var gpsResult = new List <CreateTeltonikaGps>();
var buffer = new byte[client.ReceiveBufferSize];
while (true)
{
if (imei == string.Empty)
{
int bytesRead = stream.Read(buffer, 0, client.ReceiveBufferSize) - 2;
lock (stream)
{
imei = _devicesParser.GetIMEI(buffer, bytesRead);
Console.WriteLine("IMEI received : " + imei);
Byte[] b = { 0x01 };
stream.Write(b, 0, 1);
}
await SendNewDeviceCommad(imei);
}
else if (imei != string.Empty)
{
_semaphore = new Semaphore(1, 10, imei);
lock (stream)
{
// _semaphore.WaitOne();
gpsResult.AddRange(_devicesParser.Decode(new List <byte>(buffer), imei));
var bytes = Convert.ToByte(gpsResult.Count);
stream.Write(new byte[] { 0x00, 0x0, 0x0, bytes }, 0, 4);
client.Close();
// _semaphore.Release();
}
await SendDecodedData(gpsResult, imei);
break;
}
else
{
break;
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
client.Close();
//throw;
}
}
}
}
private List <CreateTeltonikaGps> ParseAvlData(string imei, byte[] buffer)
{
List <CreateTeltonikaGps> gpsResult = new List <CreateTeltonikaGps>();
var parser = new DevicesParser();
gpsResult.AddRange(parser.Decode(new List <byte>(buffer), imei));
LogAvlData(gpsResult);
return(gpsResult);
}
private async Task <List <CreateTeltonikaGps> > ParsseAvlData(string imei, byte[] buffer)
{
List <CreateTeltonikaGps> gpsResult = new List <CreateTeltonikaGps>();
var parser = new DevicesParser();
gpsResult.AddRange(parser.Decode(new List <byte>(buffer), imei));
// await GeoReverseCodeGpsData(gpsResult);
LogAvlData(gpsResult);
return(gpsResult);
}
/// <summary>
///
/// </summary>
/// <param name="imei"></param>
/// <param name="dataReceived"></param>
/// <param name="stream"></param>
/// <param name="buffer"></param>
/// <returns></returns>
private static async Task ParseTeltonikaData(TcpClient client, NetworkStream stream, byte[] buffer, string imei)
{
var currentImei = string.Empty;
var gpsResult = new List <CreateTeltonikaGps>();
while (true)
{
if (currentImei == string.Empty)
{
currentImei = imei;
Console.WriteLine("IMEI received : " + currentImei);
Byte[] b = { 0x01 };
stream.Write(b, 0, 1);
var command = new CreateBoxCommand();
command.Imei = imei;
if (_bus != null)
{
await _bus.Send(command);
}
}
else
{
int dataNumber = Convert.ToInt32(buffer.Skip(9).Take(1).ToList()[0]);
while (dataNumber > 0)
{
var parser = new DevicesParser();
gpsResult.AddRange(parser.Decode(new List <byte>(buffer), imei));
dataNumber--;
}
await stream.WriteAsync(new byte[] { 0x00, 0x00, 0x00, 0x01 }, 0, 4).ConfigureAwait(false);
}
if (!gpsResult.Any() && imei.Any())
{
continue;
}
foreach (var gpSdata in gpsResult)
{
if (_bus != null)
{
await _bus.Send(gpSdata);
}
}
break;
}
}
private static async void ThreadProc(object state)
{
string imei = string.Empty;
var client = ((TcpClient)state);
NetworkStream nwStream = ((TcpClient)state).GetStream();
byte[] buffer = new byte[client.ReceiveBufferSize];
try
{
var gpsResult = new List <CreateTeltonikaGps>();
while (true)
{
int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize) - 2;
string dataReceived = Encoding.ASCII.GetString(buffer, 2, bytesRead);
if (imei == string.Empty)
{
imei = dataReceived;
Console.WriteLine("IMEI received : " + dataReceived);
Byte[] b = { 0x01 };
nwStream.Write(b, 0, 1);
var command = new CreateBoxCommand();
command.Imei = imei;
await _endpoint.Result.Send(command);
}
else
{
int dataNumber = Convert.ToInt32(buffer.Skip(9).Take(1).ToList()[0]);
var parser = new DevicesParser();
gpsResult.AddRange(parser.Decode(new List <byte>(buffer), imei));
var bytes = Convert.ToByte(dataNumber);
await nwStream.WriteAsync(new byte[] { 0x00, 0x0, 0x0, bytes }, 0, 4);
client.Close();
}
if (gpsResult.Count <= 0)
{
continue;
}
foreach (var gpSdata in gpsResult)
{
gpSdata.Address = await _reverseGeoCodingService.ReverseGoecode(gpSdata.Lat, gpSdata.Long);
Console.WriteLine("IMEI: " + imei + " Date: " + gpSdata.Timestamp + " latitude : " + gpSdata.Lat +
" Longitude:" + gpSdata.Long + " Speed: " + gpSdata.Speed + " Direction:" + "" +
" address " + gpSdata.Address + " milage :" + gpSdata.Mileage);
await _bus.Publish(gpSdata);
}
break;
}
}
catch (Exception)
{
// Console.WriteLine(e);
client.Close();
//throw;
}
//throw new NotImplementedException();
}
// ReSharper disable once ExcessiveIndentation
private void ReceiveCallback(IAsyncResult result)
{
ConnectionInfo connection = (ConnectionInfo)result.AsyncState;
try
{
//get a number of received bytes
int bytesRead = connection.Socket.EndReceive(result);
if (bytesRead > 0)
{
//because device sends data with portions we need summary all portions to total buffer
if (connection.IsPartialLoaded)
{
connection.TotalBuffer.AddRange(connection.Buffer.Take(bytesRead).ToList());
}
else
{
if (connection.TotalBuffer != null)
{
connection.TotalBuffer.Clear();
}
connection.TotalBuffer = connection.Buffer.Take(bytesRead).ToList();
}
//-------- Get Length of current received data ----------
string hexDataLength = string.Empty;
//Skip four zero bytes an take next four bytes with value of AVL data array length
connection.TotalBuffer.Skip(4).Take(4).ToList().ForEach(delegate(byte b) { hexDataLength += String.Format("{0:X2}", b); });
int dataLength = Convert.ToInt32(hexDataLength, 16);
//
//bytesRead = 17 when parser receive IMEI from device
//if datalength encoded in data > then total buffer then is a partial data a device will send next part
//we send confirmation and wait next portion of data
// ReSharper disable once ComplexConditionExpression
if (dataLength + 12 > connection.TotalBuffer.Count && bytesRead != 17)
{
connection.IsPartialLoaded = true;
connection.Socket.Send(new byte[] { 0x01 });
connection.Socket.BeginReceive(connection.Buffer, 0, connection.Buffer.Length, SocketFlags.None,
ReceiveCallback, connection);
return;
}
bool isDataPacket = true;
//when device send AVL data first 4 bytes is 0
string firstRourBytes = string.Empty;
connection.TotalBuffer.Take(4).ToList().ForEach(delegate(byte b) { firstRourBytes += String.Format("{0:X2}", b); });
if (Convert.ToInt32(firstRourBytes, 16) > 0)
{
isDataPacket = false;
}
// if is true then is AVL data packet
// else that a IMEI sended
if (isDataPacket)
{
if (true)
{
//all data we convert this to string in hex format only for diagnostic
StringBuilder data = new StringBuilder();
connection.TotalBuffer.ForEach(delegate(byte b) { data.AppendFormat("{0:X2}", b); });
Console.WriteLine("<" + data);
}
var decAvl = new DevicesParser();
decAvl.OnDataReceive += decAVL_OnDataReceive;
//if CRC not correct number of data returned by AVL parser = 0;
var avlData = decAvl.Decode(connection.TotalBuffer, connection.Imei);
if (!connection.IsPartialLoaded)
{
// send to device number of received data for confirmation.
if (avlData.Count > 0)
{
connection.Socket.Send(new byte[] { 0x00, 0x00, 0x00, Convert.ToByte(avlData.Count) });
LogAvlData(avlData);
var events = new TLGpsDataEvents
{
Id = Guid.NewGuid(),
Events = avlData
};
var lastGpsData = events.Events.Last();
var command = new CreateBoxCommand();
command.Imei = connection.Imei;
command.Longitude = lastGpsData.Long;
command.Latitude = lastGpsData.Lat;
command.LastValidGpsDataUtc = lastGpsData.DateTimeUtc;
command.Speed = lastGpsData.Speed;
_bus.Publish(command).ConfigureAwait(false);
Thread.Sleep(1000);
_bus.Publish(events).ConfigureAwait(false);
}
else
{
//send 0 number of data if CRC not correct for resend data from device
connection.Socket.Send(new byte[] { 0x00, 0x00, 0x00, 0x00 });
}
}
decAvl.OnDataReceive -= decAVL_OnDataReceive;
Console.WriteLine("Modem ID: " + connection.Imei + " send data");
}
else
{
//if is not data packet then is it IMEI info send from device
connection.Imei = Encoding.ASCII.GetString(connection.TotalBuffer.Skip(2).ToArray());
connection.Socket.Send(new byte[] { 0x01 });
Console.WriteLine("Modem ID: " + connection.Imei + " connected");
}
// Get next data portion from device
connection.Socket.BeginReceive(connection.Buffer, 0, connection.Buffer.Length, SocketFlags.None,
ReceiveCallback, connection);
}//if all data received then close connection
else
{
CloseConnection(connection);
}
}
catch (SocketException exc)
{
CloseConnection(connection);
Console.WriteLine("Socket exception: " + exc.SocketErrorCode);
}
catch (Exception exc)
{
CloseConnection(connection);
Console.WriteLine("Exception: " + exc);
}
}