/// <summary>
/// byte[] 형식의 frame을 명령 클래스 형식으로 반환
/// </summary>
/// <param name="frame">byte[] 형식의 frame</param>
/// <returns>명령 클래스</returns>
/// <example>
/// <see cref="IEASProtocolBase">IEASProtocolBase</see><br/>
/// <see cref="IEASPrtCmd1">IEASPrtCmd1</see><br/>
/// <see cref="IEASPrtCmd2">IEASPrtCmd2</see><br/>
/// <see cref="IEASPrtCmd3">IEASPrtCmd3</see><br/>
/// <see cref="IEASPrtCmd4">IEASPrtCmd4</see><br/>
/// <see cref="IEASPrtCmdFF">IEASPrtCmdFF</see>
/// <code>
/// using IEASProtocol;
///
/// public void ParseFrame(byte[] frame)
/// {
/// //한 패킷의 frame 을 인자로 ParseFrame 함수 호출
/// IEASProtocolBase protocolBase = IEASProtocolManager.ParseFrame(frame);
///
/// //명령어 코드 확인 후 해당 클래스로 캐스팅하여 사용
/// switch (prtBase.CMD)
/// {
/// case 0x01:
/// IEASPrtCmd1 prt1 = protocolBase as IEASPrtCmd1;
/// break;
/// case 0x02:
/// IEASPrtCmd2 prt2 = protocolBase as IEASPrtCmd2;
/// break;
/// case 0x03:
/// IEASPrtCmd3 prt3 = protocolBase as IEASPrtCmd3;
/// break;
/// case 0x04:
/// IEASPrtCmd4 prt4 = protocolBase as IEASPrtCmd4;
/// break;
/// case 0xFF:
/// IEASPrtCmdFF prtFF = protocolBase as IEASPrtCmdFF;
/// break;
/// default:
/// break;
/// }
/// </code>
/// </example>
/// <seealso cref="IEASProtocolBase">IEASProtocolBase</seealso>
/// <seealso cref="IEASPrtCmd1">IEASPrtCmd1</seealso>
/// <seealso cref="IEASPrtCmd2">IEASPrtCmd2</seealso>
/// <seealso cref="IEASPrtCmd3">IEASPrtCmd3</seealso>
/// <seealso cref="IEASPrtCmd4">IEASPrtCmd4</seealso>
/// <seealso cref="IEASPrtCmdFF">IEASPrtCmdFF</seealso>
public static IEASProtocolBase ParseFrame(byte[] frame)
{
if (frame == null || frame.Length < 10)
{
throw new Exception("IEASProtocol.dll Exception - IEASProtocolManager - ParseFrame Fail. 데이터가 없거나 데이터의 길이가 충분하지 않습니다.");
}
if (!(frame[0] == 'K' && frame[1] == 'C' && frame[2] == 'A' && frame[3] == 'P'))
{
throw new Exception("IEASProtocol.dll Exception - IEASProtocolManager - ParseFrame Fail. 데이터가 올바르지 않습니다.");
}
try
{
IEASProtocolBase prtBase = null;
#region 프로토콜의 인스턴스 생성
byte cmd = frame[6];
switch (cmd)
{
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0xFF:
prtBase = CreateProtocol(cmd);
break;
default:
throw new Exception("IEASProtocol.dll Exception - IEASProtocolManager - ParseFrame Fail. 지원하지 않는 커맨드 입니다.");
}
if (prtBase == null)
{
return(null);
}
#endregion
//데이터 길이
byte[] byDataLen = new byte[2];
Array.Clear(byDataLen, 0, 2);
byDataLen[0] = frame[4];
byDataLen[1] = frame[5];
int dataLen = BitConverter.ToUInt16(byDataLen, 0);
//Sender Type
prtBase.SenderType = IEASProtocolUtil.ConvertByteToSenderType(frame[7]);
//Data
byte[] dataTemp = new byte[dataLen];
Array.Clear(dataTemp, 0, dataTemp.Length);
Buffer.BlockCopy(frame, 8, dataTemp, 0, dataLen);
prtBase.Data = dataTemp;
prtBase.ParseData();
//Reserved
byte[] reserved = new byte[2];
Array.Clear(reserved, 0, reserved.Length);
Buffer.BlockCopy(frame, 8 + dataLen, reserved, 0, reserved.Length);
return(prtBase);
}
catch (Exception ex)
{
throw new Exception("IEASProtocol.dll Exception - IEASProtocolManager - ParseFrame Fail. " + ex.Message);
}
}
