public static WorkstationCommandBase ParseFactory(InputByteArray InputArray)
{
WorkstationCommandBase dsCmd = null;
if (InputArray.RemainingLength >= 2)
{
// command codes as documented on 15.2 - 1 of 5494 function ref manual
var buf = InputArray.PeekBytes(2);
if (buf[0] == 0x04)
{
var wrkstnCode = buf[1].ToWorkstationCode();
if (wrkstnCode != null)
{
var code = wrkstnCode.Value;
if (code == WorkstationCode.ClearUnit)
{
dsCmd = new ClearUnitCommand(InputArray);
}
else if (code == WorkstationCode.WTD)
{
dsCmd = new WriteToDisplayCommand(InputArray);
}
else if (code == WorkstationCode.ReadMdtFields)
{
dsCmd = new ReadMdtFieldsCommand(InputArray);
}
// 04 F3. write structure field. Used as vehicle for the D9 70 5250 query
// command.
else if (code == WorkstationCode.WriteStructuredField)
{
dsCmd = new WriteStructuredFieldCommand(InputArray);
}
else if (code == WorkstationCode.SaveScreen)
{
dsCmd = new SaveScreenCommand(InputArray);
}
else if (code == WorkstationCode.RestoreScreen)
{
dsCmd = new RestoreScreenCommand(InputArray);
}
else
{
throw new Exception(
"workstation data stream command code not supported. " +
code.ToString());
}
}
}
}
return(dsCmd);
}
public static byte[] Build(byte ControlChar1, byte ControlChar2, byte[] OrderBytes)
{
var ba = new ByteArrayBuilder();
{
var buf = WorkstationCommandBase.ToBytes(WorkstationCode.WTD);
ba.Append(buf);
}
ba.Append(ControlChar1);
ba.Append(ControlChar2);
ba.Append(OrderBytes);
return(ba.ToByteArray());
}
