public JfpClient([NotNull] Stream stream, JfpProtocol protocol = JfpProtocol.JfpOrLjfp)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (stream.CanRead)
{
_streamReader = new StreamReader(stream);
}
if (stream.CanWrite)
{
_streamWriter = new StreamWriter(stream);
}
SupportedProtocol = protocol;
if (stream.CanRead && stream.CanWrite)
{
CurrentProtocol = GetProtocol(this);
}
else
{
CurrentProtocol = JfpProtocol.Jfp;
}
}
internal static JfpProtocol?GetProtocol(JfpProtocol local, JfpProtocol remote)
{
// Client | Remote | Result
// _______|________|________
// 0 | 0 | 0
// 1 | 0 | X
// 1 | 1 | 1
// 2 | 0 | 0
// 2 | 1 | 1
// 2 | 2 | 1
switch (local)
{
case JfpProtocol.Jfp:
switch (remote)
{
case JfpProtocol.Jfp:
return(JfpProtocol.Jfp);
case JfpProtocol.Ljfp:
return(null);
case JfpProtocol.JfpOrLjfp:
return(JfpProtocol.Jfp);
default:
throw new ArgumentOutOfRangeException(nameof(remote), remote, null);
}
case JfpProtocol.Ljfp:
switch (remote)
{
case JfpProtocol.Jfp:
return(null);
case JfpProtocol.Ljfp:
return(JfpProtocol.Ljfp);
case JfpProtocol.JfpOrLjfp:
return(JfpProtocol.Ljfp);
default:
throw new ArgumentOutOfRangeException(nameof(remote), remote, null);
}
case JfpProtocol.JfpOrLjfp:
switch (remote)
{
case JfpProtocol.Jfp:
return(JfpProtocol.Jfp);
case JfpProtocol.Ljfp:
return(JfpProtocol.Ljfp);
case JfpProtocol.JfpOrLjfp:
return(JfpProtocol.Ljfp);
default:
throw new ArgumentOutOfRangeException(nameof(remote), remote, null);
}
default:
throw new ArgumentOutOfRangeException(nameof(local), local, null);
}
}
