public void Initialize(IObservable <PriceDto> priceStream, ICurrencyPair currencyPair)
{
_loggerFactory = new DebugLoggerFactory();
var pricingServiceClient = new WatchPricingServiceClient(priceStream);
var priceFactory = new PriceFactory(new WatchExecutionRepository(), new PriceLatencyRecorder());
var priceRepository = new PriceRepository(pricingServiceClient, priceFactory, _loggerFactory);
PriceStream = priceRepository.GetPriceStream(currencyPair);
}