#region License Information /* HeuristicLab * Copyright (C) 2002-2015 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 System; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Data; using HeuristicLab.Operators; using HeuristicLab.Parameters; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; namespace HeuristicLab.Optimization { [Item("Single-objective Evaluator", "Calls the script's Evaluate method to get the quality value of the parameter vector.")] [StorableClass] public sealed class SingleObjectiveEvaluator : InstrumentedOperator, ISingleObjectiveEvaluationOperator, IStochasticOperator where TSolution : class, ISolution { public ILookupParameter RandomParameter { get { return (ILookupParameter)Parameters["Random"]; } } public ILookupParameter> EncodingParameter { get { return (ILookupParameter>)Parameters["Encoding"]; } } public ILookupParameter QualityParameter { get { return (ILookupParameter)Parameters["Quality"]; } } public Func EvaluateFunc { get; set; } [StorableConstructor] private SingleObjectiveEvaluator(bool deserializing) : base(deserializing) { } private SingleObjectiveEvaluator(SingleObjectiveEvaluator original, Cloner cloner) : base(original, cloner) { } public SingleObjectiveEvaluator() { Parameters.Add(new LookupParameter("Random", "The random number generator to use.")); Parameters.Add(new LookupParameter>("Encoding", "An item that holds the problem's encoding.")); Parameters.Add(new LookupParameter("Quality", "The quality of the parameter vector.")); } public override IDeepCloneable Clone(Cloner cloner) { return new SingleObjectiveEvaluator(this, cloner); } public override IOperation InstrumentedApply() { var random = RandomParameter.ActualValue; var encoding = EncodingParameter.ActualValue; var solution = ScopeUtil.GetSolution(ExecutionContext.Scope, encoding); QualityParameter.ActualValue = new DoubleValue(EvaluateFunc(solution, random)); return base.InstrumentedApply(); } } }