public override void Parse(CodeyPacket packet)
{
Debug.Assert(packet.Body[0] == (int)CodeyPacketType.Variable);
int index = ParseName(packet.Body);
List <byte> byteList = new List <byte>();
//获取变量标识，区分是数值还是字符串
ValueType = (VariableType)packet.Body[index++];
// 从后续的标识开始
for (; index < packet.Body.Length; index++)
{
byteList.Add(packet.Body[index]);
}
switch (ValueType)
{
case VariableType.Int32: // littleendian 整形数
Value = BitConverter.ToInt32(byteList.ToArray(), 0).ToString();
break;
case VariableType.String: // 字符串
Value = Encoding.UTF8.GetString(byteList.ToArray());
break;
default:
Debug.Assert(false);
break;
}
}
public static ICodeyShareable Generate(CodeyPacket packet)
{
ICodeyShareable ret = null;
switch ((CodeyPacketType)packet.Body[0])
{
case CodeyPacketType.Variable:
ret = new SharedVariable();
break;
case CodeyPacketType.Message:
ret = new BroadcastMessage();
break;
case CodeyPacketType.Heartbeat:
ret = new Heartbeat();
break;
default:
Debug.Assert(false);
break;
}
ret.Parse(packet);
return(ret);
}
/// <summary>
/// 发送变量/消息统一接口
/// </summary>
/// <param name="var"></param>
public void Send(ICodeyShareable var)
{
CodeyPacket packet = new CodeyPacket {
Body = var.ToArray()
};
WriteDataAsync(CodeyProtocolSerializer.Serialize(packet));
}
public void Parse(CodeyPacket packet)
{
Debug.Assert(packet.Body[0] == (int)CodeyPacketType.Heartbeat);
List <byte> byteList = new List <byte>();
// 从后续的标识开始
for (int index = 1; index < packet.Body.Length; index++)
{
byteList.Add(packet.Body[index]);
}
Code = byteList.ToArray();
}
public static byte[] Serialize(CodeyPacket packet)
{
List <byte> byteList = new List <byte>();
packet.Len = (byte)packet.Body.Length;
packet.LenCheck = (byte)(packet.Len + CodeyPacket.Header);
packet.CheckSum = (byte)packet.Body.Sum(s => s);
byteList.Add(CodeyPacket.Header);
byteList.Add(packet.LenCheck);
byteList.Add(packet.Len);
byteList.Add(0x00); //长度占位
byteList.AddRange(packet.Body);
byteList.Add(packet.CheckSum);
byteList.Add(CodeyPacket.EndCode);
return(byteList.ToArray());
}
public abstract void Parse(CodeyPacket packet);
/// <summary>
/// 不断的放入数据，如果数据可以凑成一个句子，就返回true
/// </summary>
/// <returns></returns>
public bool PushData(byte data)
{
var ret = false;
switch (_state)
{
case State.None:
if (data == CodeyPacket.Header)
{
_state = State.StartFirst;
_packet = new CodeyPacket();
}
break;
case State.StartFirst:
_state = State.LenCheck;
_packet.LenCheck = data;
break;
case State.LenCheck:
_state = State.Len;
_packet.Len = data;
if ((byte)(_packet.Len + CodeyPacket.Header) == _packet.LenCheck)
{
_packet.Body = new byte[_packet.Len];
_state = State.Len;
_dateCnt = 0;
}
else
{
_state = State.None;
}
break;
case State.Len:
// 这部分应该是长度的一部分
_state = State.Body;
break;
case State.Body:
_packet.Body[_dateCnt] = data;
if (_dateCnt >= _packet.Len - 1)
{
_state = State.CheckSum;
}
_dateCnt++;
break;
case State.CheckSum:
if (data == CheckSum(_packet.Body))
{
_packet.CheckSum = data;
_state = State.End;
}
else
{
_state = State.None;
}
break;
case State.End:
if (data == CodeyPacket.EndCode)
{
ret = true;
}
_state = State.None;
break;
}
return(ret);
}
public override void Parse(CodeyPacket packet)
{
Debug.Assert(packet.Body[0] == (int)CodeyPacketType.Message);
ParseName(packet.Body);
}