1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2011 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 |
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23 |
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24 | using HeuristicLab.Core;
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25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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26 | using HeuristicLab.Optimization;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Common;
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29 | using HeuristicLab.Parameters;
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30 | using System;
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31 | using HeuristicLab.Problems.Scheduling.Encodings.JobSequenceMatrix;
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32 | using HeuristicLab.Problems.Scheduling.Encodings;
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33 |
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34 |
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35 | namespace HeuristicLab.Problems.Scheduling {
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36 | [Item("Scheduling Evaluator", "Represents a general evaluator class for scheduling problems.")]
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37 | [StorableClass]
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38 | public abstract class JSSPEvaluator : SchedulingOperator, ISingleObjectiveEvaluator {
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39 | [StorableConstructor]
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40 | protected JSSPEvaluator(bool deserializing) : base(deserializing) { }
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41 | protected JSSPEvaluator(JSSPEvaluator original, Cloner cloner)
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42 | : base(original, cloner) {
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43 | }
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44 |
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45 | public ILookupParameter<IRandom> RandomParameter {
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46 | get { return (LookupParameter<IRandom>)Parameters["Random"]; }
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47 | }
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48 | public ILookupParameter<DoubleValue> QualityParameter {
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49 | get {
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50 | if (Parameters.ContainsKey("Quality"))
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51 | return (ILookupParameter<DoubleValue>)Parameters["Quality"];
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52 | else
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53 | return null;
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54 | }
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55 | }
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56 | public ILookupParameter<JSSPEncoding> ScheduleParameter {
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57 | get {
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58 | if (Parameters.ContainsKey("SchedulingSolution"))
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59 | return (ILookupParameter<JSSPEncoding>)Parameters["SchedulingSolution"];
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60 | else
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61 | return null;
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62 | }
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63 | }
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64 |
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65 | protected abstract DoubleValue evaluate(Schedule schedule);
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66 |
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67 |
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68 | public JSSPEvaluator () : base () {
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69 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality value aka fitness value of the solution."));
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70 | Parameters.Add(new LookupParameter<JSSPEncoding>("SchedulingSolution", "The object containing all necessary schedule solution data."));
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71 | Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator."));
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72 | }
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73 |
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74 |
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75 | public override IOperation Apply() {
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76 | JSSPEncoding schedulingSolution = ScheduleParameter.ActualValue;
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77 | QualityParameter.ActualValue = evaluate (schedulingSolution.ToSchedule (NrOfResources, Jobs, RandomParameter.ActualValue));
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78 | return base.Apply();
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79 | }
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80 | }
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81 | }
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