protected override Result <(Price[], Position[])> GetInputs()
{
var pricesAsync = ResultEx.TryCatchAsync(GetInputPrices);
var positionsAsync = ResultEx.TryCatchAsync(GetInputPositions);
var(pricesResult, positionsResult) = TaskEx.WhenAll(pricesAsync, positionsAsync).Result;
switch (pricesResult)
{
case Success <Price[]> successPrice when positionsResult is Success <Position[]> positionsSuccess:
return(new Success <(Price[], Position[])>((successPrice.Value, positionsSuccess.Value)));
// :( it's all about failures
case Failure <Price[]> priceFailure when positionsResult is Failure <Position[]> positionFailure:
return(new Failure <(Price[], Position[])>(priceFailure.Reason + " " + positionFailure.Reason));
case Failure <Price[]> failure:
return(new Failure <(Price[], Position[])>(failure.Reason));
case Success <Price[]> _ when positionsResult is Failure <Position[]> failure:
return(new Failure <(Price[], Position[])>(failure.Reason));
}
return(new Failure <(Price[], Position[])>("ParallelAppFlow.GetInputs - Fatal error."));
}
