// Return the "market value" of a given value at a specific time.
// (equal to value(...
public Value ValueOf(DateTime moment = default(DateTime), Commodity inTermOf = null)
{
switch (Type)
{
case ValueTypeEnum.Integer:
return(Value.Empty);
case ValueTypeEnum.Amount:
Amount val = AsAmount.Value(moment, inTermOf);
if (val != null)
{
return(Value.Get(val));
}
return(Value.Empty);
case ValueTypeEnum.Balance:
Balance bal = AsBalance.Value(moment, inTermOf);
if (!Balance.IsNull(bal))
{
return(Value.Get(bal));
}
return(Value.Empty);
case ValueTypeEnum.Sequence:
Value temp = new Value();
foreach (Value value in AsSequence)
{
temp.PushBack(value.ValueOf(moment, inTermOf));
}
return(temp);
default:
break;
}
ErrorContext.Current.AddErrorContext(String.Format(ValueError.WhileFindingValuationOfSmth, this));
throw new ValueError(String.Format(ValueError.CannotFindTheValueOfSmth, this));
}
public Value ExchangeCommodities(string commodities, bool addPrices = false, DateTime moment = default(DateTime))
{
if (Type == ValueTypeEnum.Sequence)
{
Value temp = new Value();
foreach (Value value in AsSequence)
{
temp.PushBack(value.ExchangeCommodities(commodities, addPrices, moment));
}
return(temp);
}
// If we are repricing to just a single commodity, with no price
// expression, skip the expensive logic below.
if (commodities.IndexOfAny(CommaOrEqual) < 0)
{
return(ValueOf(moment, CommodityPool.Current.FindOrCreate(commodities)));
}
IList <Commodity> comms = new List <Commodity>();
IList <bool> force = new List <bool>();
IEnumerable <string> tokens = commodities.Split(',').Select(s => s.Trim());
foreach (string name in tokens)
{
int nameLen = name.Length;
bool isForce = name.Last() == '!';
Commodity commodity = CommodityPool.Current.ParsePriceExpression(isForce ? name.Remove(nameLen - 1) : name, addPrices, moment);
if (commodity != null)
{
Logger.Current.Debug("commodity.exchange", () => String.Format("Pricing for commodity: {0}", commodity.Symbol));
comms.Add(commodity.Referent);
force.Add(isForce);
}
}
int index = 0;
foreach (Commodity comm in comms)
{
switch (Type)
{
case ValueTypeEnum.Amount:
Logger.Current.Debug("commodity.exchange", () => String.Format("We have an amount: {0}", AsAmount));
if (!force[index] && comms.Contains(AsAmount.Commodity.Referent))
{
break;
}
Logger.Current.Debug("commodity.exchange", () => "Referent doesn't match, pricing...");
Amount val = AsAmount.Value(moment, comm);
if (val != null)
{
return(Value.Get(val));
}
Logger.Current.Debug("commodity.exchange", () => "Was unable to find a price");
break;
case ValueTypeEnum.Balance:
Balance temp = new Balance();
bool rePriced = false;
Logger.Current.Debug("commodity.exchange", () => String.Format("We have a balance: {0}", AsBalance));
foreach (KeyValuePair <Commodity, Amount> pair in AsBalance.Amounts)
{
Logger.Current.Debug("commodity.exchange", () => String.Format("We have a balance amount of commodity: {0} == {1}", pair.Key.Symbol, pair.Value.Commodity.Symbol));
if (!force[index] && comms.Contains(pair.Key.Referent))
{
temp = temp.Add(pair.Value);
}
else
{
Logger.Current.Debug("commodity.exchange", () => "Referent doesn't match, pricing...");
Amount val1 = pair.Value.Value(moment, comm);
if (val1 != null)
{
Logger.Current.Debug("commodity.exchange", () => String.Format("Re-priced member amount is: {0}", val1));
temp = temp.Add(val1);
rePriced = true;
}
else
{
Logger.Current.Debug("commodity.exchange", () => "Was unable to find price");
temp = temp.Add(pair.Value);
}
}
}
if (rePriced)
{
Logger.Current.Debug("commodity.exchange", () => String.Format("Re-priced balance is: {0}", temp));
return(Value.Get(temp));
}
break;
default:
break;
}
++index;
}
return(this);
}