//-------------------------------------------------------------------------
/// <summary>
/// Explains the present value of the swap product.
/// <para>
/// This returns explanatory information about the calculation.
///
/// </para>
/// </summary>
/// <param name="swap"> the product </param>
/// <param name="provider"> the rates provider </param>
/// <returns> the explanatory information </returns>
public virtual ExplainMap explainPresentValue(ResolvedSwap swap, RatesProvider provider)
{
ExplainMapBuilder builder = ExplainMap.builder();
builder.put(ExplainKey.ENTRY_TYPE, "Swap");
foreach (ResolvedSwapLeg leg in swap.Legs)
{
builder.addListEntryWithIndex(ExplainKey.LEGS, child => legPricer.explainPresentValueInternal(leg, provider, child));
}
return(builder.build());
}
