/// <summary>
/// Returns a specific Ssm2Packet type based on given content.
/// Does not validate the packet, so manually call the Check method afterwards!
/// </summary>
/// <param name="bytes">
/// A <see cref="System.Byte[]"/> containing the packet.
/// The packet must start at index 0 though the array may be larger than needed.
/// </param>
/// <returns>
/// A <see cref="Ssm2Packet"/> subclass or null if the packet type could not be recognized.
/// </returns>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static Ssm2Packet NewFromBytes(byte[] bytes)
{
if (bytes == null)
{
throw new ArgumentNullException();
}
// check generic minimum size in order to get command byte
if (bytes.Length < PacketSizeMin)
{
throw new ArgumentOutOfRangeException("bytes.Length < Minimum (6)");
}
Ssm2Packet p;
// Read type directly from command byte (5th byte).
// Each derived class constructor checks its requirements.
switch ((Ssm2Command)bytes[(int)Ssm2PacketIndex.Command])
{
case Ssm2Command.ReadAddressesRequestA8:
p = new Ssm2ReadAddressesRequest(bytes);
break;
case Ssm2Command.ReadAddressesResponseE8:
p = new Ssm2ReadAddressesResponse(bytes);
break;
case Ssm2Command.WriteAddressRequestB8:
p = new Ssm2WriteAddressRequest(bytes);
break;
case Ssm2Command.WriteAddressResponseF8:
p = new Ssm2WriteAddressResponse(bytes);
break;
case Ssm2Command.InitRequestBF:
p = new Ssm2InitRequest(bytes);
break;
case Ssm2Command.InitResponseFF:
p = new Ssm2InitResponse(bytes);
break;
case Ssm2Command.ReadBlockRequestA0:
p = new Ssm2ReadBlockRequest(bytes);
break;
case Ssm2Command.ReadBlockResponseE0:
p = new Ssm2ReadBlockResponse(bytes);
break;
default:
return(null);
}
p.FromBytes(bytes);
return(p);
}
public void Parse1()
{
byte[] packetData = TestPacket1;
var p = new Ssm2WriteAddressRequest ();
p.FromBytes (packetData);
Assert.AreEqual (packetData.Length, p.Size, "Size");
Assert.AreEqual (true, p.Check (), "Check()");
Assert.AreEqual (Ssm2Device.Engine10, p.Destination, "Destination");
Assert.AreEqual (Ssm2Device.DiagnosticToolF0, p.Source, "Source");
Assert.AreEqual (Ssm2Command.WriteAddressRequestB8, p.Command, "Command");
Assert.AreEqual (0x6f, p.Address, "Address");
Assert.AreEqual (0x2, p.Data, "Data");
}
public void Parse1()
{
byte[] packetData = TestPacket1;
var p = new Ssm2WriteAddressRequest();
p.FromBytes(packetData);
Assert.AreEqual(packetData.Length, p.Size, "Size");
Assert.AreEqual(true, p.Check(), "Check()");
Assert.AreEqual(Ssm2Device.Engine10, p.Destination, "Destination");
Assert.AreEqual(Ssm2Device.DiagnosticToolF0, p.Source, "Source");
Assert.AreEqual(Ssm2Command.WriteAddressRequestB8, p.Command, "Command");
Assert.AreEqual(0x6f, p.Address, "Address");
Assert.AreEqual(0x2, p.Data, "Data");
}
/// <summary>
/// Returns a specific Ssm2Packet type based on given content.
/// Does not validate the packet, so manually call the Check method afterwards!
/// </summary>
/// <param name="bytes">
/// A <see cref="System.Byte[]"/> containing the packet.
/// The packet must start at index 0 though the array may be larger than needed.
/// </param>
/// <returns>
/// A <see cref="Ssm2Packet"/> subclass or null if the packet type could not be recognized.
/// </returns>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentOutOfRangeException"></exception>
public static Ssm2Packet NewFromBytes(byte[] bytes)
{
if (bytes == null)
throw new ArgumentNullException ();
// check generic minimum size in order to get command byte
if (bytes.Length < PacketSizeMin)
throw new ArgumentOutOfRangeException ("bytes.Length < Minimum (6)");
Ssm2Packet p;
// Read type directly from command byte (5th byte).
// Each derived class constructor checks its requirements.
switch ((Ssm2Command)bytes[(int)Ssm2PacketIndex.Command]) {
case Ssm2Command.ReadAddressesRequestA8:
p = new Ssm2ReadAddressesRequest (bytes);
break;
case Ssm2Command.ReadAddressesResponseE8:
p = new Ssm2ReadAddressesResponse (bytes);
break;
case Ssm2Command.WriteAddressRequestB8:
p = new Ssm2WriteAddressRequest (bytes);
break;
case Ssm2Command.WriteAddressResponseF8:
p = new Ssm2WriteAddressResponse (bytes);
break;
case Ssm2Command.InitRequestBF:
p = new Ssm2InitRequest (bytes);
break;
case Ssm2Command.InitResponseFF:
p = new Ssm2InitResponse (bytes);
break;
case Ssm2Command.ReadBlockRequestA0:
p = new Ssm2ReadBlockRequest (bytes);
break;
case Ssm2Command.ReadBlockResponseE0:
p = new Ssm2ReadBlockResponse (bytes);
break;
default:
return null;
}
p.FromBytes (bytes);
return p;
}
