UlsAlgorithmsExactMethodCatalog.cs

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using ULSAlgorithms.Abstractions;
using ULSAlgorithms.Catalog;
 
namespace LotSizingDataModel.Solver.Algorithms.Uls;
 
/// <summary>
/// Pins the external exact-method identities used by alpha.34.
/// </summary>
public static class UlsAlgorithmsExactMethodCatalog
{
    public const string PackageVersion = "1.1.0";
 
    public const string SourceCommit =
        "3e5595996d35373dd93f90a9245c6bc9e65f9e0d";
 
    public const string PackageSha256 =
        "4eff21da87a9ff7649ee2e0f1c6f835b0af3cfa6bc08dd9ba91306fdd5ff2a3c";
 
    public const string WagnerWhitinClassicalId =
        "wagner-whitin-classical";
 
    public const string ZangwillNetworkId =
        "zangwill-network";
 
    public static string GetSolverId(
        UlsAlgorithmsExactMethod method)
    {
        return method switch
        {
            UlsAlgorithmsExactMethod.WagnerWhitinClassical =>
                WagnerWhitinClassicalId,
 
            UlsAlgorithmsExactMethod.ZangwillNetwork =>
                ZangwillNetworkId,
 
            _ =>
                throw new ArgumentOutOfRangeException(
                    nameof(method),
                    method,
                    "The requested ULSAlgorithms exact method is not exposed by alpha.34.")
        };
    }
 
    public static UlsSolverDescriptor GetExactDescriptor(
        UlsAlgorithmsExactMethod method)
    {
        string solverId =
            GetSolverId(
                method);
 
        UlsSolverDescriptor descriptor =
            UlsSolverCatalog.Get(
                solverId);
 
        if (descriptor.Kind !=
            UlsSolverKind.Exact)
        {
            throw new InvalidOperationException(
                $"ULSAlgorithms solver '{solverId}' is not classified as an exact solver.");
        }
 
        return descriptor;
    }
}