/// <summary>
/// Applies an operation to the amounts.
/// <para>
/// This is generally used to apply a mathematical operation to the amounts.
/// For example, the operator could multiply the amounts by a constant, or take the inverse.
/// <pre>
/// multiplied = base.mapAmount(value -> value * 3);
/// </pre>
///
/// </para>
/// </summary>
/// <param name="mapper"> the operator to be applied to the amounts </param>
/// <returns> a copy of this amount with the mapping applied to the original amounts </returns>
public MultiCurrencyAmount mapAmounts(System.Func <double, double> mapper)
{
ArgChecker.notNull(mapper, "mapper");
//JAVA TO C# CONVERTER TODO TASK: Most Java stream collectors are not converted by Java to C# Converter:
return(amounts.Select(ca => ca.mapAmount(mapper)).collect(MultiCurrencyAmount.collectorInternal()));
}
/// <summary>
/// Obtains an instance from a map of currency to amount.
/// </summary>
/// <param name="map"> the map of currency to amount </param>
/// <returns> the amount </returns>
public static MultiCurrencyAmount of(IDictionary <Currency, double> map)
{
ArgChecker.noNulls(map, "map");
return(MapStream.of(map).map(CurrencyAmount.of).collect(MultiCurrencyAmount.collectorInternal()));
}
