1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2012 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.ScheduleEncoding;
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27 | using HeuristicLab.Operators;
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28 | using HeuristicLab.Parameters;
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29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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30 |
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31 | namespace HeuristicLab.Problems.Scheduling {
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32 | [Item("SchedulingEvaluator", "First applies the decoder operator to obtain a schedule from an encoding and then applies the evaluator to obtain a quality.")]
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33 | [StorableClass]
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34 | public class SchedulingEvaluator : SingleSuccessorOperator, ISchedulingEvaluator {
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35 |
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36 | public IValueLookupParameter<IScheduleDecoder> ScheduleDecoderParameter {
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37 | get { return (IValueLookupParameter<IScheduleDecoder>) Parameters["ScheduleDecoder"]; }
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38 | }
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39 | ILookupParameter<IScheduleDecoder> ISchedulingEvaluator.ScheduleDecoderParameter {
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40 | get { return ScheduleDecoderParameter; }
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41 | }
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42 | public IValueLookupParameter<IScheduleEvaluator> ScheduleEvaluatorParameter {
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43 | get { return (IValueLookupParameter<IScheduleEvaluator>) Parameters["ScheduleEvaluator"]; }
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44 | }
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45 | ILookupParameter<IScheduleEvaluator> ISchedulingEvaluator.ScheduleEvaluatorParameter {
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46 | get { return ScheduleEvaluatorParameter; }
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47 | }
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48 | public ILookupParameter<DoubleValue> QualityParameter {
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49 | get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
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50 | }
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51 |
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52 | [StorableConstructor]
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53 | protected SchedulingEvaluator(bool deserializing) : base(deserializing) { }
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54 | protected SchedulingEvaluator(SchedulingEvaluator original, Cloner cloner) : base(original, cloner) { }
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55 | public SchedulingEvaluator()
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56 | : base() {
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57 | Parameters.Add(new ValueLookupParameter<IScheduleDecoder>("ScheduleDecoder", "The decoding operator that is used to calculate a schedule from the used representation."));
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58 | Parameters.Add(new ValueLookupParameter<IScheduleEvaluator>("ScheduleEvaluator", "The actual schedule evaluation operator."));
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59 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality value aka fitness value of the solution."));
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60 | QualityParameter.Hidden = true;
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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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64 | return new SchedulingEvaluator(this, cloner);
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65 | }
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66 |
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67 | public override IOperation Apply() {
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68 | var decoder = ScheduleDecoderParameter.ActualValue;
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69 | var evaluator = ScheduleEvaluatorParameter.ActualValue;
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70 | if (evaluator == null) throw new InvalidOperationException("A ScheduleEvaluator could not be found.");
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71 |
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72 | var operations = new OperationCollection(base.Apply());
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73 | operations.Insert(0, ExecutionContext.CreateChildOperation(evaluator));
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74 | if (decoder != null) // decode before evaluating
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75 | operations.Insert(0, ExecutionContext.CreateChildOperation(decoder));
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76 | return operations;
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77 | }
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78 | }
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79 | }
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