public void Decode(Channel ch, ByteArray input)
{
if (input.Length == 0)
{
throw new ProtocolCodecException("Unexpected empty packet data:no readable bytes available!");
}
if (endpoint.LogLevel == Logging.LogLevel.DEBUG)
{
if (input.Length > 0x400)
{
string[] messages = new string[] { "Data Read: Size > 1024, dump omitted" };
this.log.Info(messages);
}
else
{
string[] textArray2 = new string[] { "Data Read: " + HexDumpFormatter.HexDump(input) };
this.log.Info(textArray2);
}
}
input.Position = 0;
while (input.Length > 0)
{
if (this.ReadState == PacketReadState.WAIT_NEW_PACKET)
{
input = this.HandleNewPacket(input);
}
else
{
if (this.ReadState == PacketReadState.WAIT_PACKET_HEADER)
{
input = this.HandlePakcetHeader(input);
continue;
}
if (this.ReadState == PacketReadState.WAIT_PACKET_HEADER_FRAGMETN)
{
input = this.HandlePacketHeaderFragment(input);
continue;
}
if (this.ReadState == PacketReadState.WAIT_DATA)
{
input = this.HandlePacketData(ch, input);
continue;
}
if (this.ReadState == PacketReadState.INVALID_DATA)
{
input = this.HandleInvalidData(input);
}
}
}
}
private ByteArray HandlePakcetHeader(ByteArray data)
{
string[] messages = new string[1];
object[] objArray1 = new object[] { "Handling Packet Header. Data Length: ", data.Length };
messages[0] = string.Concat(objArray1);
this.log.Debug(messages);
if (data.Length >= PAKCET_BINARY_LENGTH)
{
short magic = data.ReadShort();
if (magic != MAGIC)
{
object[] objArray2 = new object[] { "Unexpected header magic short: ", magic, "\n", HexDumpFormatter.HexDump(data) };
throw new ProtocolCodecException(string.Concat(objArray2));
}
//packet header type
byte type = data.ReadByte();
//packet header compressed
byte compressed = data.ReadByte();
//Packet header length
int length = data.ReadInt();
PacketHeader header = new PacketHeader(type, compressed, length);
pendingPacket.Header = header;
this.fsm.ApplyTransition(PacketReadTransition.PacketHeaderReceived);
if (data.Length > PAKCET_BINARY_LENGTH)
{
return(this.ResizeByteArray(data, PAKCET_BINARY_LENGTH, data.Length - PAKCET_BINARY_LENGTH));
}
data = this.EMPTY_BUFFER;
return(data);
}
this.fsm.ApplyTransition(PacketReadTransition.IncompletePacketHeader);
this.pendingPacket.Content.WriteBytes(data.Bytes);
data = this.EMPTY_BUFFER;
return(data);
}