ScientificSolverRequestFactory.cs

Go to the documentation of this file.

using LotSizingDataModel.Solver.Execution;
 
namespace LotSizingDataModel.Checker.Pipeline.Scientific;
 
/// <summary>
/// Creates the delegated technical solver request while preserving the caller's
/// original request object.
/// </summary>
internal static class ScientificSolverRequestFactory
{
    public static SolverRequest CreateDelegated(
        SolverRequest source,
        string formulationId)
    {
        ArgumentNullException.ThrowIfNull(source);
 
        if (string.IsNullOrWhiteSpace(formulationId))
        {
            throw new ArgumentException(
                "A scientifically selected formulation identifier is required.",
                nameof(formulationId));
        }
 
        source.EnsureValid();
 
        var delegated =
            new SolverRequest(source.Instance!)
            {
                PreferredSolver =
                    source.PreferredSolver,
 
                FormulationName =
                    formulationId.Trim(),
 
                RunName =
                    source.RunName ?? string.Empty,
 
                // The scientific wrapper never mutates solver parameters.
                // Reusing the same validated parameter object avoids an
                // incomplete hand-written pseudo-clone of native settings.
                Parameters =
                    source.Parameters
            };
 
        foreach (
            var observer
            in source.ProgressObservers)
        {
            delegated.AddProgressObserver(observer);
        }
 
        delegated.EnsureValid();
 
        return delegated;
    }
}