[10753] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using HeuristicLab.Common;
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| 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Data;
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| 26 | using HeuristicLab.Encodings.ParameterVectorEncoding;
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| 27 | using HeuristicLab.Operators;
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| 28 | using HeuristicLab.Optimization;
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| 29 | using HeuristicLab.Parameters;
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| 30 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 31 |
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| 32 | namespace HeuristicLab.Problems.Programmable {
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[10754] | 33 | [Item("Single-objective Evaluator", "Calls the script's Evaluate method to get the quality value of the parameter vector.")]
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[10753] | 34 | [StorableClass]
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[10754] | 35 | public class SingleObjectiveEvaluator : SingleSuccessorOperator, ISingleObjectiveProgrammableProblemEvaluator, IStochasticOperator {
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[10753] | 36 |
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| 37 | public ILookupParameter<IRandom> RandomParameter {
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| 38 | get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
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| 39 | }
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| 40 |
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[10754] | 41 | public ILookupParameter<SingleObjectiveScript> ScriptParameter {
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| 42 | get { return (ILookupParameter<SingleObjectiveScript>)Parameters["Script"]; }
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[10753] | 43 | }
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| 44 |
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| 45 | public ILookupParameter<ParameterVector> ParameterVectorParameter {
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| 46 | get { return (ILookupParameter<ParameterVector>)Parameters["ParameterVector"]; }
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| 47 | }
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| 48 |
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| 49 | public ILookupParameter<DoubleValue> QualityParameter {
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| 50 | get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 51 | }
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| 52 |
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| 53 | [StorableConstructor]
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[10754] | 54 | protected SingleObjectiveEvaluator(bool deserializing) : base(deserializing) { }
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| 55 | protected SingleObjectiveEvaluator(SingleObjectiveEvaluator original, Cloner cloner) : base(original, cloner) { }
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| 56 | public SingleObjectiveEvaluator() {
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[10753] | 57 | Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator to use."));
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[10754] | 58 | Parameters.Add(new LookupParameter<SingleObjectiveScript>("Script", "The script that will execute the evaluation function and define the parameter vector."));
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[10753] | 59 | Parameters.Add(new LookupParameter<ParameterVector>("ParameterVector", "The vector that holds the parameters."));
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| 60 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the parameter vector."));
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| 61 | }
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| 62 |
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| 63 | public override IDeepCloneable Clone(Cloner cloner) {
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[10754] | 64 | return new SingleObjectiveEvaluator(this, cloner);
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[10753] | 65 | }
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| 66 |
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| 67 | public override IOperation Apply() {
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| 68 | var random = RandomParameter.ActualValue;
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| 69 | var runner = ScriptParameter.ActualValue;
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| 70 | if (runner.Instance == null) throw new InvalidOperationException("Script instance is null, maybe the code doesn't compile.");
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| 71 | var vector = ParameterVectorParameter.ActualValue;
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| 72 | QualityParameter.ActualValue = new DoubleValue(runner.Instance.Evaluate(random, vector));
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| 73 | return base.Apply();
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| 74 | }
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| 75 | }
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| 76 | }
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