public MarketDataHubNotifier(IMarketDataProxy marketDataProxy, IHubConnectionContext <dynamic> clients)
        {
            _marketDataProxy = marketDataProxy;
            _clients         = clients;

            _marketDataProxy.MarketStateChanged += HandleMarketStateChanged;
            _marketDataProxy.MarketDataChanged  += HandleMarketDataChanged;
        }
 public MarketDataHub(IMarketDataProxy marketDataProxy)
 {
     _marketDataProxy = marketDataProxy;
 }
 public MarketDataHubNotifier(IMarketDataProxy marketDataProxy) :
     this(marketDataProxy, GlobalHost.ConnectionManager.GetHubContext <MarketDataHub>().Clients)
 {
 }