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source: branches/ParameterConfigurationEncoding/HeuristicLab.Encodings.ParameterConfigurationEncoding/3.3/SymbolicExpressionGrammar/SymbolicExpressionGrammarValueConfiguration.cs @ 16310

Last change on this file since 16310 was 8535, checked in by jkarder, 12 years ago

#1853:

  • enhanced combinations count calculation
  • restructured code
  • minor code improvements
  • added license information
File size: 3.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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 System.Linq;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Encodings.ParameterConfigurationEncoding {
29  [StorableClass]
30  public class SymbolicExpressionGrammarValueConfiguration : ParameterizedValueConfiguration {
31    #region Constructors and Cloning
32    [StorableConstructor]
33    protected SymbolicExpressionGrammarValueConfiguration(bool deserializing) : base(deserializing) { }
34    protected SymbolicExpressionGrammarValueConfiguration(SymbolicExpressionGrammarValueConfiguration original, Cloner cloner) : base(original, cloner) { }
35    public SymbolicExpressionGrammarValueConfiguration() : base() { }
36    public SymbolicExpressionGrammarValueConfiguration(ISymbolicExpressionGrammar grammar)
37      : base() {
38      this.IsOptimizable = true;
39      this.ActualValue = new ConstrainedValue(grammar, grammar.GetType(), new ItemSet<IItem> { grammar }, false);
40    }
41    public override IDeepCloneable Clone(Cloner cloner) {
42      return new SymbolicExpressionGrammarValueConfiguration(this, cloner);
43    }
44    #endregion
45
46    protected override void PopulateParameterConfigurations(IItem item, bool discoverValidValues) {
47      var grammar = (ISymbolicExpressionGrammar)item;
48      foreach (Symbol symbol in grammar.Symbols) {
49        var svc = new SymbolValueConfiguration(symbol);
50        var pc = new SingleValuedParameterConfiguration(symbol.Name, svc);
51        svc.ParentOptimizable = pc;
52        SetOptimizeIfOnlyOneValueConfiguration(pc);
53        this.parameterConfigurations.Add(pc);
54      }
55    }
56
57    public virtual void Parameterize(ISymbolicExpressionGrammar grammar) {
58      foreach (Symbol symbol in grammar.Symbols) {
59        var symbolValueConfiguration = (SymbolValueConfiguration)this.parameterConfigurations.Single(pc => pc.Name == symbol.Name).ValueConfigurations.First();
60        symbolValueConfiguration.Parameterize(symbol);
61      }
62    }
63
64    /// <summary>
65    /// If only 1 parameter exists (usually this is InitialFrequency), then set it to Optimize=true,
66    /// because this is what the user usually wants to do. avoids additional click.
67    /// </summary>
68    private static void SetOptimizeIfOnlyOneValueConfiguration(SingleValuedParameterConfiguration pc) {
69      var vc = pc.ValueConfigurations[0] as ParameterizedValueConfiguration;
70      if (vc != null) {
71        if (vc.ParameterConfigurations.Count == 1) {
72          vc.ParameterConfigurations.Single().Optimize = true;
73        }
74      }
75    }
76  }
77}
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