1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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 HeuristicLab.Core;
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23 | using HeuristicLab.Data;
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24 | using HeuristicLab.Parameters;
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25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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26 |
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27 | namespace HeuristicLab.Operators {
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28 | /// <summary>
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29 | /// An Operator which sorts the sub-scopes of the current scope.
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30 | /// </summary>
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31 | [Item("SubScopesSorter", "An operator which sorts the sub-scopes of the current scope.")]
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32 | [EmptyStorableClass]
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33 | [Creatable("Test")]
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34 | public sealed class SubScopesSorter : SingleSuccessorOperator {
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35 | private bool descending;
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36 | private string actualName;
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37 |
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38 | public SubScopesLookupParameter<DoubleData> ValueParameter {
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39 | get { return (SubScopesLookupParameter<DoubleData>)Parameters["Value"]; }
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40 | }
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41 | public ValueLookupParameter<BoolData> DescendingParameter {
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42 | get { return (ValueLookupParameter<BoolData>)Parameters["Descending"]; }
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43 | }
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44 | private ScopeParameter CurrentScopeParameter {
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45 | get { return (ScopeParameter)Parameters["CurrentScope"]; }
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46 | }
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47 | public IScope CurrentScope {
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48 | get { return CurrentScopeParameter.ActualValue; }
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49 | }
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50 |
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51 | public SubScopesSorter()
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52 | : base() {
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53 | Parameters.Add(new SubScopesLookupParameter<DoubleData>("Value", "The values contained in each sub-scope acording which the sub-scopes of the current scope are sorted."));
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54 | Parameters.Add(new ValueLookupParameter<BoolData>("Descending", "True if the sub-scopes should be sorted in descending order, otherwise false."));
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55 | Parameters.Add(new ScopeParameter("CurrentScope", "The current scope whose sub-scopes are sorted."));
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56 | }
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57 |
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58 | public override IExecutionSequence Apply() {
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59 | descending = DescendingParameter.ActualValue.Value;
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60 | actualName = LookupParameter<ItemArray<DoubleData>>.TranslateName(ValueParameter.Name, ExecutionContext);
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61 | CurrentScope.SubScopes.Sort(SortScopes);
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62 | return base.Apply();
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63 | }
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64 |
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65 | private int SortScopes(IScope x, IScope y) {
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66 | IVariable var1;
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67 | IVariable var2;
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68 | x.Variables.TryGetValue(actualName, out var1);
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69 | y.Variables.TryGetValue(actualName, out var2);
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70 | if ((var1 == null) && (var2 == null))
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71 | return 0;
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72 | else if ((var1 == null) && (var2 != null))
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73 | return 1;
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74 | else if ((var1 != null) && (var2 == null))
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75 | return -1;
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76 | else {
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77 | int result = ((DoubleData)var1.Value).CompareTo((DoubleData)var2.Value);
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78 | if (descending) result = result * -1;
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79 | return result;
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80 | }
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81 | }
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82 | }
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83 | }
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