public int RequestRealTimeData(RealTimeDataRequest request)
{
if (!request.Instrument.ID.HasValue)
{
throw new Exception("ID doesn't have value.");
}
_requestIDs++;
var requestGrouping = new RequestGrouping
{
Instrument = request.Instrument,
Frequency = request.Frequency
};
var requestList = _connectedRequests.GetOrAdd(requestGrouping,
new ConcurrentDictionary <int, RealTimeDataRequest>());
bool success = requestList.TryAdd(_requestIDs, request);
lock (_historicalDataRequestLock)
{
int historicalRequestId;
if (!_historicalRequests.TryGetValue(requestGrouping, out historicalRequestId))
{
var asyncCall = new RequestHistoricalDataCaller(RequestHistoricalData);
asyncCall.BeginInvoke(requestGrouping, null, null);
}
}
Timer timer;
bool result = _timers.TryGetValue(request.Frequency, out timer);
if (result)
{
// start timer if not is already started:
if (!timer.Enabled)
{
timer.Start();
}
}
ShortTimerController controller;
result = _shortTimers.TryGetValue(request.Frequency, out controller);
if (result)
{
if (!controller.Active)
{
controller.Active = true;
// start simulatetimer
controller.AsyncResult = controller.Caller.BeginInvoke(controller, request.Frequency, null, null);
}
}
return(_requestIDs);
}
public void CancelRealTimeData(int requestID)
{
RealTimeDataRequest request = null;
foreach (var key1Request in _connectedRequests)
{
if (key1Request.Value.TryGetValue(requestID, out request))
{
break;
}
}
if (request == null)
{
// kein Request gefunden ...
return;
}
var requestGrouping = new RequestGrouping
{
Instrument = request.Instrument,
Frequency = request.Frequency
};
RealTimeDataRequest dummy;
Timer timer;
ConcurrentDictionary <int, RealTimeDataRequest> dummy2;
if (_connectedRequests[requestGrouping].TryRemove(requestID, out dummy))
{
if (_connectedRequests[requestGrouping].Count == 0)
{
if (_connectedRequests.TryRemove(requestGrouping, out dummy2))
{
if (_connectedRequests.Count == 0)
{
if (_timers.TryGetValue(request.Frequency, out timer))
{
if (timer.Enabled)
{
timer.Stop();
}
}
}
}
}
}
}
private void RequestHistoricalData(RequestGrouping request)
{
lock (_historicalDataRequestLock)
{
_historicalRequestIDs++;
if (_historicalRequests.TryAdd(request, _historicalRequestIDs))
{
_historicalDataSource.RequestHistoricalData(new HistoricalDataRequest
{
Instrument = request.Instrument,
Frequency = request.Frequency,
DataLocation = _dataLocation,
StartingDate = _startingDate,
EndingDate = _endingDate,
RTHOnly = _rthOnly,
SaveDataToStorage = _saveDataToStorage,
RequestID = _historicalRequestIDs
});
}
}
}
