protected override void HandleChunks(string receivedString, Action <string> receivedStringAction)
{
var msgSet = ServerMsgSet.FromStringAndFraming(receivedString, framing);
if (msgSet == null)
{
receivedStringAction($"Error handling string {receivedString}");
return;
}
for (var i = 0; i < msgSet.FullMessages; i++)
{
var msg = msgSet[i];
receivedStringAction(msgSet.IsValid(msg, framing) ? msg : $"Error handling string {receivedString}");
}
Buffer.SetLength(0);
if (!msgSet.LastIsPartial)
{
return;
}
var lastMessage = msgSet.LastMessageBytes;
Buffer.Write(lastMessage, 0, lastMessage.Length);
}
private static ServerMsgSet FromStringNonTransparent(string s, ServerMsgSet serverMsgSet)
{
const char lineFeed = '\n';
serverMsgSet.messages = s.Split(lineFeed);
var lastChar = s[s.Length - 1];
serverMsgSet.LastIsPartial = lastChar == lineFeed;
return(serverMsgSet);
}
public static ServerMsgSet FromStringAndFraming(string s, int?framing)
{
var msgSet = new ServerMsgSet();
if (framing == TcpState.NonTransparentHashCode)
{
return(FromStringNonTransparent(s, msgSet));
}
if (framing == TcpState.OctetCountingHashCode)
{
return(FromStringOctetCounting(s, msgSet));
}
return(null);
}
private static ServerMsgSet FromStringOctetCounting(string s, ServerMsgSet serverMsgSet)
{
var matches = Regex
.Split(s, "(\\d{1,11} <\\d{1,3}>)")
.Where(x => !string.IsNullOrEmpty(x))
.Select((value, index) => new { value, index })
.ToArray();
serverMsgSet.messages = matches
.Where(x => x.index % 2 == 0)
.Select(x => x.value + (matches.Length <= x.index + 1 ? string.Empty : matches[x.index + 1].value))
.ToArray();
serverMsgSet.LastIsPartial = !serverMsgSet.IsValid(serverMsgSet.LastMessage, TcpState.OctetCountingHashCode);
return(serverMsgSet);
}