private static bool TryParseTaggedStringParam(string tag, string paramTagString, string paramString,
InputParam <string> param)
{
if (!paramTagString.Equals(tag))
{
return(false);
}
param.Value = paramString;
return(true);
}
private static bool TryParseDateTimeParam(string stringParam, InputParam <DateTime?> param)
{
DateTime dateTimeValue;
if (!DateTime.TryParse(stringParam, out dateTimeValue))
{
return(false);
}
param.Value = dateTimeValue;
return(true);
}
private static bool TryParseRecordsPrintLimitParam(string paramTagString, string paramString,
InputParam <int> param)
{
if (!paramTagString.Equals("-l"))
{
return(false);
}
int newRecordsPrintLimit;
if (!int.TryParse(paramString, out newRecordsPrintLimit))
{
return(false);
}
param.Value = newRecordsPrintLimit;
return(true);
}
private static void Main(string[] args)
{
if (args.Length < 3 || args.Length > 9)
{
ShowUsage();
return;
}
var address = args[HostIndex];
var symbol = args[SymbolIndex];
var source = new InputParam <string>(OrderSource.NTV.Name);
var dateTime = new InputParam <DateTime?>(null);
var recordsPrintLimit = new InputParam <int>(DefaultRecordsPrintLimit);
var token = new InputParam <string>(null);
var logDataTransferFlag = false;
for (var i = SymbolIndex + 1; i < args.Length; i++)
{
if (!dateTime.IsSet && TryParseDateTimeParam(args[i], dateTime))
{
continue;
}
if (!recordsPrintLimit.IsSet && i < args.Length - 1 &&
TryParseRecordsPrintLimitParam(args[i], args[i + 1], recordsPrintLimit))
{
i++;
continue;
}
if (!token.IsSet && i < args.Length - 1 &&
TryParseTaggedStringParam("-T", args[i], args[i + 1], token))
{
i++;
continue;
}
if (logDataTransferFlag == false && args[i].Equals("-p"))
{
logDataTransferFlag = true;
i++;
continue;
}
if (!source.IsSet)
{
source.Value = args[i];
}
}
Console.WriteLine(
$"Connecting to {address} for [Order#{source.Value} (book)] on [{symbol}] ...");
using (var con = token.IsSet
? new NativeConnection(address, token.Value, DisconnectHandler, ConnectionStatusChangeHandler)
: new NativeConnection(address, DisconnectHandler, ConnectionStatusChangeHandler))
{
IDxSubscription s = null;
try
{
NativeTools.InitializeLogging("dxf_simple_order_book_sample.log", true, true, logDataTransferFlag);
s = con.CreateSnapshotSubscription(EventType.Order, dateTime.Value, new OrderListener(recordsPrintLimit.Value));
s.SetSource(source.Value);
s.AddSymbols(symbol);
Console.WriteLine("Press enter to stop");
Console.ReadLine();
}
catch (DxException dxException)
{
Console.WriteLine($"Native exception occured: {dxException.Message}");
}
catch (Exception exc)
{
Console.WriteLine($"Exception occured: {exc.Message}");
}
finally
{
s?.Dispose();
}
}
}