void _dataDelivery_OperationalStatusChangedEvent(IOperational operational, OperationalStateEnum previousOperationState)
{
if (operational.OperationalState != OperationalStateEnum.Operational)
{
return;
}
// Re-map the session orderInfo.
RuntimeDataSessionInformation information = _dataDelivery.GetSymbolRuntimeSessionInformation(_symbol);
if (information == null)
{
SystemMonitor.OperationError("Failed to map session information for quote provider.");
_sessionInfo = DataSessionInfo.Empty;
}
else
{
_sessionInfo = information.Info;
if (_dataDelivery.SubscribeToData(_sessionInfo, true, new DataSubscriptionInfo(true, false, null)))
{
RequestQuoteUpdate(false);
}
}
}
/// <summary>
///
/// </summary>
public bool RemoveSymbol(Symbol symbol)
{
ISourceDataDelivery delivery = _delivery;
if (delivery != null)
{
RuntimeDataSessionInformation info = delivery.GetSymbolRuntimeSessionInformation(symbol);
if (info == null)
{
return(false);
}
delivery.SubscribeToData(info.Info, false, new DataSubscriptionInfo(true, false, null));
}
lock (this)
{
_symbolQuotes.Remove(symbol);
if (_symbolQuotes.Count == 0)
{// Release the delivery on last.
//_delivery.UnInitialize();
//_delivery.Dispose();
//_delivery = null;
_dataSourceId = null;
}
}
return(true);
}
public bool AddSymbol(ComponentId dataSourceId, Symbol symbol, out string operationResultMessage)
{
if (_dataSourceId.HasValue && _dataSourceId.Value != dataSourceId)
{
operationResultMessage = "One source per watch component currently supported.";
SystemMonitor.Error(operationResultMessage);
return(false);
}
_dataSourceId = dataSourceId;
if (_delivery == null)
{
_delivery = base.ObtainDataDelivery(_dataSourceId.Value);
}
RuntimeDataSessionInformation info = _delivery.GetSymbolRuntimeSessionInformation(symbol);
if (info == null)
{
operationResultMessage = "Failed to obtain symbol runtime session information.";
return(false);
}
_delivery.SubscribeToData(info.Info, true, new DataSubscriptionInfo(true, false, null));
_delivery.QuoteUpdateEvent += new QuoteUpdateDelegate(delivery_QuoteUpdateEvent);
operationResultMessage = string.Empty;
return(true);
}
void _dataDelivery_OperationalStatusChangedEvent(IOperational operational, OperationalStateEnum previousOperationState)
{
if (operational.OperationalState != OperationalStateEnum.Operational)
{
return;
}
if (_sessionInfo.IsEmtpy)
{
SystemMonitor.OperationError("Data bar provider has no valid session assiged.");
return;
}
// Re-map the session orderInfo.
RuntimeDataSessionInformation information = _dataDelivery.GetSymbolRuntimeSessionInformation(_sessionInfo.Symbol);
if (information == null)
{
SystemMonitor.OperationError("Failed to map session information for data provider.");
_sessionInfo = DataSessionInfo.Empty;
return;
}
else
{
_sessionInfo = information.Info;
}
if (_dataDelivery.SubscribeToData(_sessionInfo, true, new DataSubscriptionInfo(false, false, new TimeSpan[] { Period.Value })) == false)
{
SystemMonitor.OperationError("Failed to subscribe to bar data updates.");
return;
}
RuntimeDataSessionInformation session = _dataDelivery.GetSymbolRuntimeSessionInformation(_sessionInfo.Symbol);
if (session != null && session.AvailableDataBarPeriods.Contains(_period.Value))
{
_dataDelivery.RequestDataHistoryUpdate(_sessionInfo, new DataHistoryRequest(_period.Value, _defaultHistoryBarsCount), false);
}
}
public bool SubscribeToData(DataSessionInfo session, bool subscribe, DataSubscriptionInfo subscription)
{
return(_sourceDataDelivery.SubscribeToData(session, subscribe, subscription));
}