source: branches/2520_PersistenceReintegration/HeuristicLab.Operators/3.3/SubScopesSorter.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 2 years ago

#2520: updated year of copyrights

File size: 3.5 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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 HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Parameters;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Operators {
29  /// <summary>
30  /// An Operator which sorts the sub-scopes of the current scope.
31  /// </summary>
32  [Item("SubScopesSorter", "An operator which sorts the sub-scopes of the current scope.")]
33  [StorableClass]
34  public sealed class SubScopesSorter : SingleSuccessorOperator {
35    private bool descending;
36    private string actualName;
37
38    public ScopeTreeLookupParameter<DoubleValue> ValueParameter {
39      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Value"]; }
40    }
41    public ValueLookupParameter<BoolValue> DescendingParameter {
42      get { return (ValueLookupParameter<BoolValue>)Parameters["Descending"]; }
43    }
44    private ScopeParameter CurrentScopeParameter {
45      get { return (ScopeParameter)Parameters["CurrentScope"]; }
46    }
47    public IScope CurrentScope {
48      get { return CurrentScopeParameter.ActualValue; }
49    }
50
51    [StorableConstructor]
52    private SubScopesSorter(bool deserializing) : base(deserializing) { }
53    private SubScopesSorter(SubScopesSorter original, Cloner cloner)
54      : base(original, cloner) {
55    }
56    public SubScopesSorter()
57      : base() {
58      Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Value", "The values contained in each sub-scope acording which the sub-scopes of the current scope are sorted."));
59      Parameters.Add(new ValueLookupParameter<BoolValue>("Descending", "True if the sub-scopes should be sorted in descending order, otherwise false."));
60      Parameters.Add(new ScopeParameter("CurrentScope", "The current scope whose sub-scopes are sorted."));
61    }
62
63    public override IDeepCloneable Clone(Cloner cloner) {
64      return new SubScopesSorter(this, cloner);
65    }
66
67    public override IOperation Apply() {
68      descending = DescendingParameter.ActualValue.Value;
69      actualName = ValueParameter.TranslatedName;
70      CurrentScope.SubScopes.Sort(SortScopes);
71      return base.Apply();
72    }
73
74    private int SortScopes(IScope x, IScope y) {
75      IVariable var1;
76      IVariable var2;
77      x.Variables.TryGetValue(actualName, out var1);
78      y.Variables.TryGetValue(actualName, out var2);
79      if ((var1 == null) && (var2 == null))
80        return 0;
81      else if ((var1 == null) && (var2 != null))
82        return 1;
83      else if ((var1 != null) && (var2 == null))
84        return -1;
85      else {
86        int result = ((DoubleValue)var1.Value).CompareTo((DoubleValue)var2.Value);
87        if (descending) result = result * -1;
88        return result;
89      }
90    }
91  }
92}
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