using System; #region License Information /* HeuristicLab * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using HeuristicLab.Operators; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; using HeuristicLab.Core; using HeuristicLab.Common; using HeuristicLab.Data; using HeuristicLab.Parameters; using HeuristicLab.Encodings.PermutationEncoding; namespace HeuristicLab.Problems.LinearAssignment { [Item("LAPEvaluator", "Evaluates a solution to the linear assignment problem.")] [StorableClass] public class LAPEvaluator : InstrumentedOperator, ILAPEvaluator { public ILookupParameter CostsParameter { get { return (ILookupParameter)Parameters["Costs"]; } } public ILookupParameter AssignmentParameter { get { return (ILookupParameter)Parameters["Assignment"]; } } public ILookupParameter QualityParameter { get { return (ILookupParameter)Parameters["Quality"]; } } [StorableConstructor] protected LAPEvaluator(bool deserializing) : base(deserializing) { } protected LAPEvaluator(LAPEvaluator original, Cloner cloner) : base(original, cloner) { } public LAPEvaluator() : base() { Parameters.Add(new LookupParameter("Costs", LinearAssignmentProblem.CostsDescription)); Parameters.Add(new LookupParameter("Assignment", "The assignment solution to evaluate.")); Parameters.Add(new LookupParameter("Quality", "The quality value of the solution.")); } public override IDeepCloneable Clone(Cloner cloner) { return new LAPEvaluator(this, cloner); } public override IOperation InstrumentedApply() { var costs = CostsParameter.ActualValue; var assignment = AssignmentParameter.ActualValue; if (costs == null || assignment == null) throw new InvalidOperationException(Name + ": Cannot find Costs or Assignment."); int len = assignment.Length; double quality = 0; for (int i = 0; i < len; i++) { quality += costs[i, assignment[i]]; } QualityParameter.ActualValue = new DoubleValue(quality); return base.InstrumentedApply(); } } }