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source: branches/ProgrammableProblem/HeuristicLab.Problems.Programmable/3.3/Operators/MultiObjectiveEvaluator.cs @ 11484

Last change on this file since 11484 was 11484, checked in by abeham, 8 years ago

#2174: Major refactoring

  • Removed ProblemDefinitionHosts
  • Renamed ParameterVector to Individual
  • Renamed Configuration to Encoding
  • Changed handling of existing operators that they will not be removed and recreated, but only rewired
File size: 3.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30
31namespace HeuristicLab.Problems.Programmable {
32  [Item("Multi-objective Evaluator", "Calls the Evaluate method of the problem definition and writes the return value into the scope.")]
33  [StorableClass]
34  public class MultiObjectiveEvaluator : SingleSuccessorOperator, IMultiObjectiveProgrammableProblemEvaluator, IStochasticOperator {
35
36    public ILookupParameter<IRandom> RandomParameter {
37      get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
38    }
39
40    public ILookupParameter<IMultiObjectiveProblemDefinition> ProblemDefinitionParameter {
41      get { return (ILookupParameter<IMultiObjectiveProblemDefinition>)Parameters["ProblemDefinition"]; }
42    }
43
44    public ILookupParameter<Encoding> EncodingParameter {
45      get { return (ILookupParameter<Encoding>)Parameters["Encoding"]; }
46    }
47
48    public ILookupParameter<DoubleArray> QualitiesParameter {
49      get { return (ILookupParameter<DoubleArray>)Parameters["Qualities"]; }
50    }
51
52    [StorableConstructor]
53    protected MultiObjectiveEvaluator(bool deserializing) : base(deserializing) { }
54    protected MultiObjectiveEvaluator(MultiObjectiveEvaluator original, Cloner cloner) : base(original, cloner) { }
55    public MultiObjectiveEvaluator() {
56      Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator to use."));
57      Parameters.Add(new LookupParameter<IMultiObjectiveProblemDefinition>("ProblemDefinition", "The host that holds the problem definition."));
58      Parameters.Add(new LookupParameter<Encoding>("Encoding", "An item that holds the problem's encoding."));
59      Parameters.Add(new LookupParameter<DoubleArray>("Qualities", "The qualities of the parameter vector."));
60    }
61
62    public override IDeepCloneable Clone(Cloner cloner) {
63      return new MultiObjectiveEvaluator(this, cloner);
64    }
65
66    public override IOperation Apply() {
67      var random = RandomParameter.ActualValue;
68      var definition = ProblemDefinitionParameter.ActualValue;
69      if (definition == null) throw new InvalidOperationException("Problem definition is null.");
70      var config = EncodingParameter.ActualValue;
71      var vector = Helper.Extract(ExecutionContext.Scope, config);
72      QualitiesParameter.ActualValue = new DoubleArray(definition.Evaluate(random, vector));
73      return base.Apply();
74    }
75  }
76}
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