public static MeiligaoPacket GetMeiligaoPacket(byte[] bytes)
{
UInt16 validChecksum;
if (!IsChecksumValid(bytes, out validChecksum)) return null;
var packet = new MeiligaoPacket();
//1.Header
packet.Header = Encoding.ASCII.GetString(bytes, 0, 2);
//2.Length of the packet
packet.Length = getLengthFromBytes(bytes);
//3.ID
packet.ID = getIDFromBytes(bytes);
//4.Command
packet.Command = getCommandFromPacketBytes(bytes);
var dataCount = bytes.Length - 13 - 2 - 2;
if (dataCount == 1)
{
//Flag
packet.Flag = getCommandFlagFromBytes(bytes);
}
else
{
//Data
packet.GpsData = getGPSData(bytes);
}
packet.CheckSum = validChecksum;
return packet;
}
public void TestGetMeiligaoPacket()
{
var trackOnDemandresponsePacket = new MeiligaoPacket();
trackOnDemandresponsePacket.Header = "$$";
trackOnDemandresponsePacket.ID = "123456";
trackOnDemandresponsePacket.Length = 96;
trackOnDemandresponsePacket.GpsData = new GPSData() { Altitude = 0.0, HDOP = "11.5", GPRMC = new GPRMC("035644.000,A,2232.6083,N,11404.8137,E,0.00,,010809,,*1C") };
trackOnDemandresponsePacket.Command = CommandTypes.TrackOnDemandResponse;
var trackOnDemandresponseBytes = new byte[]
{
0x24, 0x24, 0x00, 0x60, 0x12, 0x34, 0x56, 0xFF, 0xFF, 0xFF, 0xFF, 0x99, 0x55
, 0x30, 0x33, 0x35, 0x36, 0x34, 0x34, 0x2E, 0x30
, 0x30, 0x30, 0x2C, 0x41, 0x2C, 0x32, 0x32, 0x33, 0x32, 0x2E, 0x36, 0x30,
0x38, 0x33, 0x2C, 0x4E, 0x2C, 0x31, 0x31, 0x34, 0x30, 0x34
, 0x2E, 0x38, 0x31, 0x33, 0x37, 0x2C, 0x45, 0x2C, 0x30, 0x2E, 0x30, 0x30,
0x2C, 0x2C, 0x30, 0x31, 0x30, 0x38, 0x30, 0x39, 0x2C, 0x2C, 0x2A, 0x31
, 0x43, 0x7C, 0x31, 0x31, 0x2E, 0x35, 0x7C, 0x31, 0x39, 0x34, 0x7C, 0x30,
0x30, 0x30, 0x30, 0x7C, 0x30, 0x30, 0x30, 0x30, 0x2C, 0x30, 0x30, 0x30
, 0x30, 0x69, 0x62, 0x0D, 0x0A
};
var testPacket1 = MeiligaoProcessor.GetMeiligaoPacket(trackOnDemandresponseBytes);
Assert.AreEqual(testPacket1.Header, trackOnDemandresponsePacket.Header,"Header convension test failed");
Assert.AreEqual(testPacket1.Length, trackOnDemandresponsePacket.Length,"Length convension test failed");
Assert.AreEqual(testPacket1.Command, trackOnDemandresponsePacket.Command,"Command convension test failed");
Assert.AreEqual(testPacket1.GpsData.Altitude, trackOnDemandresponsePacket.GpsData.Altitude, "Command convension test failed");
Assert.AreEqual(testPacket1.GpsData.HDOP, trackOnDemandresponsePacket.GpsData.HDOP, "HDOP convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.GPRMCSentenceString, trackOnDemandresponsePacket.GpsData.GPRMC.GPRMCSentenceString, "GPRMC convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.CheckSum, trackOnDemandresponsePacket.GpsData.GPRMC.CheckSum, "GPRMC-CheckSum convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.D, trackOnDemandresponsePacket.GpsData.GPRMC.D, "GPRMC-D convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.DateTimeUTC, trackOnDemandresponsePacket.GpsData.GPRMC.DateTimeUTC, "GPRMC-DateTimeUTC convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.Direction, trackOnDemandresponsePacket.GpsData.GPRMC.Direction, "GPRMC-Direction convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.Latitude, trackOnDemandresponsePacket.GpsData.GPRMC.Latitude, "GPRMC-Latitude convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.Longitude, trackOnDemandresponsePacket.GpsData.GPRMC.Longitude, "GPRMC-Longitude convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.Speed, trackOnDemandresponsePacket.GpsData.GPRMC.Speed, "GPRMC-Speed convension test failed");
Assert.AreEqual(testPacket1.GpsData.GPRMC.Status, trackOnDemandresponsePacket.GpsData.GPRMC.Status, "GPRMC-Status convension test failed");
}
public static byte[] GetBytes(MeiligaoPacket Packet)
{
var bytesList = new List<byte>();
//1.header
var headerBytes = Encoding.ASCII.GetBytes(Packet.Header);
bytesList.AddRange(headerBytes);
//2.Length
var intBytes = BitConverter.GetBytes(Packet.Length);
if (BitConverter.IsLittleEndian)
Array.Reverse(intBytes);
bytesList.AddRange(intBytes);
//3.ID
var id = getIDBytes(Packet.ID);
bytesList.AddRange(id);
//4.Command
var commandByte = BitConverter.GetBytes((ushort) Packet.Command);
if (BitConverter.IsLittleEndian)
Array.Reverse(commandByte);
bytesList.AddRange(commandByte);
//5.Parameter/Data?
//6.Checksum
var checksumBytes = getCheckSumforBytes(bytesList);
bytesList.AddRange(checksumBytes);
//Ending
bytesList.AddRange(new byte[] {0x0d, 0x0a});
return bytesList.ToArray();
}
public static byte[] GetBytes(MeiligaoPacket Packet)
{
throw new NotImplementedException();
}
