public void Subscribe(IDataProvider provider, InstrumentList instruments)
{
if (provider.Status != ProviderStatus.Connected)
{
provider.Connect();
}
var newInstruments = new InstrumentList();
for (int i = 0; i < instruments.Count; i++)
{
var instrument = instruments.GetByIndex(i);
if (!this._submap.ContainsKey(provider.Id))
{
this._submap[provider.Id] = new Dictionary <Instrument, int>();
}
if (!this._submap[provider.Id].ContainsKey(instrument) || this._submap[provider.Id][instrument] == 0)
{
this._submap[provider.Id][instrument] = 0;
newInstruments.Add(instrument);
}
this._submap[provider.Id][instrument] += 1;
}
if (newInstruments.Count > 0)
{
provider.Subscribe(newInstruments);
}
}
public void Unsubscribe(IDataProvider provider, InstrumentList instruments)
{
var list = new InstrumentList();
for (int i = 0; i < instruments.Count; i++)
{
var instrument = instruments.GetByIndex(i);
if (this._submap.ContainsKey(provider.Id) && this._submap[provider.Id][instrument] != 0)
{
this._submap[provider.Id][instrument] -= 1;
if (this._submap[provider.Id][instrument] == 0)
{
list.Add(instrument);
}
}
else
{
Console.WriteLine($"SubscriptionManager::Unsubscribe Error. Instrument has no subscriptions {instrument.Symbol} on data provider {provider.Name}");
}
}
provider.Unsubscribe(list);
}