// main logic for processing messages received from client utilizing MessageEnums
protected MessageEnums ProcessLine(string line)
{
string[] splitLine = line.Split(' ');
if (splitLine.Length <= 0 || !Message.IsMessageEnum(splitLine[0]))
{
SendMessage(Message.error($"Incorrect message protocol '{line}'"));
return(ERROR);
}
try
{
MessageEnums responseType = Message.GetMessageEnumFromString(splitLine[0]);
switch (responseType)
{
case TRADER_NEW:
InitNewTrader();
return(TRADER_NEW);
case TRADER_RECONNECTING:
if (!Program.IsRestarting)
{
throw new ServerNotRestartingException("Server is not restarting");
}
InitNewTrader(splitLine[1]);
return(TRADER_RECONNECTING);
case TRADER_TRADE:
if (_trader == null)
{
throw new Exception("Trader Uninitialized");
}
if (Program.IsRestarting)
{
throw new Exception("Cannot trade whilst server is recovering");
}
return(TradeStock(splitLine[1]));
default:
SendMessage(Message.error($"Invalid request '{line}'"));
return(ERROR);
}
}
catch (IndexOutOfRangeException e) {
SendMessage(Message.error($"Inavlid request '{line}' unexpected number of arguments"));
return(ERROR);
}
catch (ServerNotRestartingException e)
{
SendMessage(Message.error($"{e.Message}"));
return(ERROR);
}
}