1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 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 System.Linq;
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24 | using HeuristicLab.Analysis;
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25 | using HeuristicLab.Common;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 | using HeuristicLab.Operators;
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29 | using HeuristicLab.Optimization;
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30 | using HeuristicLab.Parameters;
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31 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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32 |
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33 | namespace HeuristicLab.Algorithms.ALPS {
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34 | [Item("LayerCreator", "An operator which creates a new layer by cloning the current oldest one.")]
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35 | [StorableClass]
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36 | public sealed class LayerCreator : SingleSuccessorOperator {
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37 | private ILookupParameter<IntValue> OpenLayersParameter {
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38 | get { return (ILookupParameter<IntValue>)Parameters["OpenLayers"]; }
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39 | }
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40 | public OperatorParameter NewLayerOperatorParameter {
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41 | get { return (OperatorParameter)Parameters["NewLayerOperator"]; }
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42 | }
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43 |
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44 | public IOperator NewLayerOperator {
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45 | get { return NewLayerOperatorParameter.Value; }
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46 | set { NewLayerOperatorParameter.Value = value; }
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47 | }
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48 |
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49 | [StorableConstructor]
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50 | private LayerCreator(bool deserializing) : base(deserializing) { }
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51 |
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52 | private LayerCreator(LayerCreator original, Cloner cloner)
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53 | : base(original, cloner) {
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54 | }
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55 | public LayerCreator()
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56 | : base() {
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57 | Parameters.Add(new LookupParameter<IntValue>("OpenLayers"));
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58 | Parameters.Add(new OperatorParameter("NewLayerOperator"));
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59 | }
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60 |
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61 | public override IDeepCloneable Clone(Cloner cloner) {
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62 | return new LayerCreator(this, cloner);
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63 | }
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64 |
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65 | public override IOperation Apply() {
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66 | var layersScope = ExecutionContext.Scope.SubScopes;
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67 | if (layersScope.Count < 1)
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68 | throw new ArgumentException("At least one layer must exist.");
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69 |
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70 | var newLayer = (IScope)layersScope.Last().Clone();
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71 |
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72 | int number;
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73 | if (int.TryParse(newLayer.Name, out number))
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74 | newLayer.Name = (number + 1).ToString();
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75 |
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76 | layersScope.Add(newLayer);
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77 |
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78 | // Set new layer number
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79 | newLayer.Variables["Layer"].Value = new IntValue(OpenLayersParameter.ActualValue.Value);
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80 |
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81 | // Decrement ages, because MainOperator is goint to increment it
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82 | foreach (var solution in newLayer.SubScopes)
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83 | ((DoubleValue)solution.Variables["Age"].Value).Value -= 1;
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84 |
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85 | // Reset existing values in the results to NaN to symbolize that no layer existed during that duration
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86 | var results = (ResultCollection)newLayer.Variables["LayerResults"].Value;
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87 | ResetResults(results);
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88 |
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89 | var next = new OperationCollection(base.Apply());
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90 | next.Insert(0, ExecutionContext.CreateChildOperation(NewLayerOperator, newLayer));
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91 | return next;
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92 | }
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93 |
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94 | private void ResetResults(ResultCollection results) {
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95 | var values = results.Select(r => r.Value);
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96 |
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97 | // Reset all values within results in results
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98 | foreach (var resultsCollection in values.OfType<ResultCollection>())
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99 | ResetResults(resultsCollection);
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100 |
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101 | // Reset values
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102 | foreach (var dataTable in values.OfType<DataTable>()) {
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103 | foreach (var row in dataTable.Rows)
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104 | for (int i = 0; i < row.Values.Count; i++)
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105 | row.Values[i] = double.NaN;
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106 | }
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107 | }
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108 | }
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109 | } |
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