/// <summary>
/// Обрабатывает категорию.
/// </summary>
/// <param name="ProtocolStream">ASTERIX пакет.</param>
/// <param name="message">Таблица маршрутных точек.</param>
public static void Decode(MemoryStream ProtocolStream, DataTable message, int category)
{
while (ProtocolStream.Position != ProtocolStream.Length)
{
byte[] TargetAddressbytes = new byte[4];
byte[] TimePosition = new byte[4];
byte[] Latitudebytes = new byte[4];
byte[] Longitudebytes = new byte[4];
byte[] AircraftIdentificationbytes = new byte[6];
byte[] AirportDepaturebytes = new byte[4];
byte[] AirportArrivalbytes = new byte[4];
byte[] Callsing = new byte[7];
byte[] Heightbytes = new byte[2];
byte[] Mode3Abytes = new byte[2];
string TargetAddress = "";
string AircraftIdentification = "";
string Latitude = "";
string Longitude = "";
string EmitterCategory = "";
string AirportDepature = "";
string AirportArrival = "";
string Height = "-1";
string SAC = "";
string SIC = "";
string Mode3A = "";
string CAT = Convert.ToString(category);
FSPEC = Protocol.GetVariableField(ProtocolStream);
if (FSPEC.Length <= FSPECtable.Rows.Count)
{
for (int FSPECbit = 0; FSPECbit < FSPEC.Length; FSPECbit++)
{
if (FSPEC.Get((FSPEC.Length - 1) - FSPECbit) == true)
{
string di = Convert.ToString(FSPECtable.Rows[FSPECbit]["Data Item"]);
switch (di)
{
case "010":
{
if (Protocol.ChekEndPacket(ProtocolStream, 2))
{
SAC = Convert.ToString(ProtocolStream.ReadByte());
SIC = Convert.ToString(ProtocolStream.ReadByte());
}
break;
}
case "060":
{
if (Protocol.ChekEndPacket(ProtocolStream, 2))
{
ProtocolStream.Read(Mode3Abytes, 0, 2);
Mode3A = Mode3ADecoder070(Mode3Abytes);
}
break;
}
case "070":
{
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(TimePosition, 1, 3);
}
break;
}
case "105":
{
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(Latitudebytes, 0, 4);
Latitude = Convert.ToString(CoordinateDecoder105(Latitudebytes));
}
else
{
break;
}
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(Longitudebytes, 0, 4);
Longitude = Convert.ToString(CoordinateDecoder105(Longitudebytes));
}
else
{
break;
}
break;
}
case "110":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if ((DataAgesFSPEC.Get(bit) == true) && (bit > DataAgesFSPEC.Length - FSPEC110Length.Length))
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC110Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC110Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
break;
}
case "290":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if ((DataAgesFSPEC.Get(bit) == true) && (bit > DataAgesFSPEC.Length - FSPEC290Length.Length))
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC290Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC290Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
break;
}
case "295":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if ((DataAgesFSPEC.Get(bit) == true) && (bit > DataAgesFSPEC.Length - FSPEC295Length.Length))
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC295Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC295Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
break;
}
case "340":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if ((DataAgesFSPEC.Get(bit) == true) && (bit > DataAgesFSPEC.Length - FSPEC340Length.Length))
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC340Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC340Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
break;
}
case "380":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if (DataAgesFSPEC.Get(bit) == true)
{
if (bit == DataAgesFSPEC.Length - 1)
{
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(TargetAddressbytes, 0, 3);
}
else
{
break;
}
TargetAddress = "";
for (int i = 0; i < 3; i++)
{
if (Convert.ToString(TargetAddressbytes[i], 16).Length < 2)
{
TargetAddress += "0";
}
TargetAddress += Convert.ToString(TargetAddressbytes[i], 16).ToUpper();
}
}
else
{
if (bit == DataAgesFSPEC.Length - 2)
{
if (Protocol.ChekEndPacket(ProtocolStream, 6))
{
ProtocolStream.Read(AircraftIdentificationbytes, 0, 6);
}
else
{
break;
}
AircraftIdentification = Protocol.ASCIIDecoder(AircraftIdentificationbytes, ASCIIlist);
}
else
{
if (bit > DataAgesFSPEC.Length - FSPEC380Length.Length)
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC380Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC380Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
}
}
}
break;
}
case "390":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if (DataAgesFSPEC.Get(bit) == true)
{
if ((bit == DataAgesFSPEC.Length - 2) || (bit == DataAgesFSPEC.Length - 6) || (bit == DataAgesFSPEC.Length - 7) || (bit == DataAgesFSPEC.Length - 9))
{
if (bit == DataAgesFSPEC.Length - 2)
{
if (Protocol.ChekEndPacket(ProtocolStream, 7))
{
ProtocolStream.Read(Callsing, 0, 7);
}
else
{
break;
}
AircraftIdentification = Encoding.ASCII.GetString(Callsing).Replace("'", "");
}
if (bit == DataAgesFSPEC.Length - 6)
{
switch (Convert.ToChar(ProtocolStream.ReadByte()))
{
case 'L':
{
EmitterCategory = "LIGHT AIRCRAFT";
break;
}
case 'M':
{
EmitterCategory = "MEDIUM AIRCRAFT";
break;
}
case 'H':
{
EmitterCategory = "HIGH AIRCRAFT";
break;
}
}
}
if (bit == DataAgesFSPEC.Length - 7)
{
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(AirportDepaturebytes, 0, 4);
}
else
{
break;
}
AirportDepature = Encoding.ASCII.GetString(AirportDepaturebytes);
}
if (bit == DataAgesFSPEC.Length - 9)
{
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(AirportArrivalbytes, 0, 4);
}
else
{
break;
}
AirportArrival = Encoding.ASCII.GetString(AirportArrivalbytes);
}
}
else
{
if (bit > DataAgesFSPEC.Length - FSPEC390Length.Length)
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC390Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC390Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
}
}
break;
}
case "500":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
for (int bit = DataAgesFSPEC.Length - 1; bit >= 0; bit--)
{
if ((DataAgesFSPEC.Get(bit) == true) && (bit > DataAgesFSPEC.Length - FSPEC500Length.Length))
{
if (Protocol.ChekEndPacket(ProtocolStream, FSPEC500Length[DataAgesFSPEC.Length - bit - 1]))
{
ProtocolStream.Seek(FSPEC500Length[DataAgesFSPEC.Length - bit - 1], SeekOrigin.Current);
}
else
{
break;
}
}
}
break;
}
case "SP":
{
if (Protocol.ChekEndPacket(ProtocolStream, ProtocolStream.ReadByte() - 1))
{
ProtocolStream.Position -= 1;
ProtocolStream.Seek(ProtocolStream.ReadByte() - 1, SeekOrigin.Current);
}
break;
}
default:
{
string length = Convert.ToString(FSPECtable.Rows[FSPECbit]["length"]);
switch (length)
{
case "variable":
{
Protocol.GetVariableField(ProtocolStream);
break;
}
case "":
{
break;
}
default:
{
ProtocolStream.Seek(Convert.ToInt32(length), SeekOrigin.Current);
break;
}
}
break;
}
}
}
}
if ((TargetAddress != "") && (Latitude != "") && (Longitude != ""))
{
DataRow newMessage = message.NewRow();
newMessage["TargetAddress"] = TargetAddress;
newMessage["AircraftIdentification"] = AircraftIdentification;
newMessage["EmitterCategory"] = EmitterCategory;
newMessage["AirportDepature"] = AirportDepature;
newMessage["AirportArrival"] = AirportArrival;
newMessage["Latitude"] = Latitude;
newMessage["Longitude"] = Longitude;
newMessage["Height"] = Height;
newMessage["DTime"] = Convert.ToDouble(BitConverter.ToInt32(TimePosition.Reverse().ToArray(), 0) / 128);
newMessage["SAC"] = SAC;
newMessage["SIC"] = SIC;
newMessage["Mode3A"] = Mode3A;
newMessage["CAT"] = CAT;
message.Rows.Add(newMessage);
}
}
}
}
/// <summary>
/// Обрабатывает категорию.
/// </summary>
/// <param name="ProtocolStream">ASTERIX пакет.</param>
/// <param name="message">Таблица маршрутных точек.</param>
public static void Decode(MemoryStream ProtocolStream, DataTable message, int category)
{
while (ProtocolStream.Position != ProtocolStream.Length)
{
byte[] TargetAddressbytes = new byte[4];
byte[] TimePosition = new byte[4];
byte[] Latitudebytes = new byte[4];
byte[] Longitudebytes = new byte[4];
byte[] AircraftIdentificationbytes = new byte[6];
byte[] AirportDepaturebytes = new byte[4];
byte[] AirportArrivalbytes = new byte[4];
byte[] Callsing = new byte[7];
byte[] Heightbytes = new byte[2];
byte[] Mode3Abytes = new byte[2];
string TargetAddress = "";
string AircraftIdentification = "";
string Latitude = "";
string Longitude = "";
string EmitterCategory = "";
string AirportDepature = "";
string AirportArrival = "";
string Height = "-1";
string SAC = "";
string SIC = "";
string Mode3A = "";
string CAT = Convert.ToString(category);
FSPEC = Protocol.GetVariableField(ProtocolStream);
if (FSPEC.Length <= FSPECtable.Rows.Count)
{
for (int FSPECbit = 0; FSPECbit < FSPEC.Length; FSPECbit++)
{
if (FSPEC.Get((FSPEC.Length - 1) - FSPECbit) == true)
{
string di = Convert.ToString(FSPECtable.Rows[FSPECbit]["Data Item"]);
switch (di)
{
case "010":
{
if (Protocol.ChekEndPacket(ProtocolStream, 2))
{
SAC = Convert.ToString(ProtocolStream.ReadByte());
SIC = Convert.ToString(ProtocolStream.ReadByte());
}
break;
}
case "020":
{
if (Protocol.ChekEndPacket(ProtocolStream, 1))
{
EmitterCategory = EmitterCategorylist[ProtocolStream.ReadByte()];
}
break;
}
case "070":
{
if (Protocol.ChekEndPacket(ProtocolStream, 2))
{
ProtocolStream.Read(Mode3Abytes, 0, 2);
Mode3A = Mode3ADecoder070(Mode3Abytes);
}
break;
}
case "073":
{
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(TimePosition, 1, 3);
}
break;
}
case "080":
{
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(TargetAddressbytes, 0, 3);
TargetAddress = "";
for (int i = 0; i < 3; i++)
{
if (Convert.ToString(TargetAddressbytes[i], 16).Length < 2)
{
TargetAddress += "0";
}
TargetAddress += Convert.ToString(TargetAddressbytes[i], 16).ToUpper();
}
}
break;
}
case "130":
{
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(Latitudebytes, 1, 3);
Latitude = Convert.ToString(CoordinateDecoder130(Latitudebytes));
}
if (Protocol.ChekEndPacket(ProtocolStream, 3))
{
ProtocolStream.Read(Longitudebytes, 1, 3);
Longitude = Convert.ToString(CoordinateDecoder130(Longitudebytes));
}
break;
}
case "131":
{
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(Latitudebytes, 0, 4);
Latitude = Convert.ToString(CoordinateDecoder131(Latitudebytes));
}
if (Protocol.ChekEndPacket(ProtocolStream, 4))
{
ProtocolStream.Read(Longitudebytes, 0, 4);
Longitude = Convert.ToString(CoordinateDecoder131(Longitudebytes));
}
break;
}
case "140":
{
if (Protocol.ChekEndPacket(ProtocolStream, 2))
{
ProtocolStream.Read(Heightbytes, 0, 2);
Height = Convert.ToString(HeightDecoder140(Heightbytes));
}
break;
}
case "170":
{
if (Protocol.ChekEndPacket(ProtocolStream, 6))
{
ProtocolStream.Read(AircraftIdentificationbytes, 0, 6);
AircraftIdentification = Protocol.ASCIIDecoder(AircraftIdentificationbytes, ASCIIlist);
}
break;
}
case "295":
{
BitArray DataAgesFSPEC = Protocol.GetVariableField(ProtocolStream);
int countoctet = 0;
for (int bit = 0; bit < DataAgesFSPEC.Length; bit++)
{
if (DataAgesFSPEC.Get(bit) == true)
{
countoctet++;
}
}
countoctet -= (DataAgesFSPEC.Length / 8 - 1);
if (Protocol.ChekEndPacket(ProtocolStream, countoctet))
{
ProtocolStream.Seek(countoctet, SeekOrigin.Current);
}
break;
}
case "RE":
{
if (Protocol.ChekEndPacket(ProtocolStream, ProtocolStream.ReadByte() - 1))
{
ProtocolStream.Position -= 1;
ProtocolStream.Seek(ProtocolStream.ReadByte() - 1, SeekOrigin.Current);
}
break;
}
case "SP":
{
if (Protocol.ChekEndPacket(ProtocolStream, ProtocolStream.ReadByte() - 1))
{
ProtocolStream.Position -= 1;
ProtocolStream.Seek(ProtocolStream.ReadByte() - 1, SeekOrigin.Current);
}
break;
}
default:
{
string length = Convert.ToString(FSPECtable.Rows[FSPECbit]["length"]);
switch (length)
{
case "variable":
{
Protocol.GetVariableField(ProtocolStream);
break;
}
case "":
{
break;
}
default:
{
ProtocolStream.Seek(Convert.ToInt32(length), SeekOrigin.Current);
break;
}
}
break;
}
}
}
}
if ((TargetAddress != "") && (Latitude != "") && (Longitude != ""))
{
DataRow newMessage = message.NewRow();
newMessage["TargetAddress"] = TargetAddress;
newMessage["AircraftIdentification"] = AircraftIdentification;
newMessage["EmitterCategory"] = EmitterCategory;
newMessage["AirportDepature"] = AirportDepature;
newMessage["AirportArrival"] = AirportArrival;
newMessage["Latitude"] = Latitude;
newMessage["Longitude"] = Longitude;
newMessage["Height"] = Height;
newMessage["DTime"] = Convert.ToDouble(BitConverter.ToInt32(TimePosition.Reverse().ToArray(), 0) / 128);
newMessage["SAC"] = SAC;
newMessage["SIC"] = SIC;
newMessage["Mode3A"] = Mode3A;
newMessage["CAT"] = CAT;
message.Rows.Add(newMessage);
}
}
}
}
