1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 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.Collections.Generic;
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24 | using System.Text;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.GP.Interfaces;
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27 | using System.Xml;
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28 |
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29 | namespace HeuristicLab.GP {
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30 | public class FunctionTreeBase : IFunctionTree {
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31 | private List<IFunctionTree> subTrees;
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32 | private IFunction function;
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33 |
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34 | public FunctionTreeBase() {
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35 | }
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36 |
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37 | public FunctionTreeBase(IFunction function) {
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38 | subTrees = new List<IFunctionTree>();
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39 | this.function = function;
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40 | }
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41 |
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42 | protected FunctionTreeBase(FunctionTreeBase original) {
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43 | this.function = original.Function;
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44 | this.subTrees = new List<IFunctionTree>(original.SubTrees.Count);
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45 | foreach (IFunctionTree originalSubTree in original.SubTrees) {
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46 | this.SubTrees.Add((IFunctionTree)originalSubTree.Clone());
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47 | }
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48 | }
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49 |
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50 | #region IFunctionTree Members
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51 | public virtual bool HasLocalParameters {
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52 | get { return false; }
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53 | }
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54 |
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55 | public virtual IList<IFunctionTree> SubTrees {
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56 | get { return subTrees; }
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57 | }
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58 |
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59 | public IFunction Function {
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60 | get { return function; }
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61 | protected set { function = value; }
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62 | }
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63 |
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64 | public int GetSize() {
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65 | int size = 1;
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66 | foreach (IFunctionTree tree in SubTrees) size += tree.GetSize();
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67 | return size;
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68 | }
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69 |
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70 | public int GetHeight() {
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71 | int maxHeight = 0;
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72 | foreach (IFunctionTree tree in SubTrees) maxHeight = Math.Max(maxHeight, tree.GetHeight());
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73 | return maxHeight + 1;
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74 | }
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75 |
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76 | public virtual IOperation CreateShakingOperation(IScope scope) {
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77 | return null;
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78 | }
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79 |
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80 | public virtual IOperation CreateInitOperation(IScope scope) {
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81 | return null;
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82 | }
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83 |
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84 | public void AddSubTree(IFunctionTree tree) {
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85 | SubTrees.Add(tree);
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86 | }
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87 |
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88 | public virtual void InsertSubTree(int index, IFunctionTree tree) {
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89 | SubTrees.Insert(index, tree);
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90 | }
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91 |
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92 | public virtual void RemoveSubTree(int index) {
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93 | SubTrees.RemoveAt(index);
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94 | }
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95 |
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96 | #endregion
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97 |
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98 | #region IStorable Members
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99 |
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100 | public Guid Guid {
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101 | get { throw new NotSupportedException(); }
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102 | }
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103 |
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104 | public virtual object Clone() {
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105 | return new FunctionTreeBase(this);
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106 | }
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107 |
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108 | public object Clone(IDictionary<Guid, object> clonedObjects) {
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109 | throw new NotImplementedException();
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110 | }
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111 |
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112 | public virtual XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid, IStorable> persistedObjects) {
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113 | XmlNode node = document.CreateElement(name);
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114 | //XmlAttribute typeAttr = document.CreateAttribute("Type");
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115 | //typeAttr.Value = PersistenceManager.BuildTypeString(GetType());
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116 | //node.Attributes.Append(typeAttr);
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117 | foreach (IFunctionTree subTree in SubTrees) {
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118 | XmlNode funNode = PersistenceManager.Persist(Function, document, persistedObjects);
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119 | node.AppendChild(funNode);
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120 | funNode.AppendChild(subTree.GetXmlNode("Tree", document, persistedObjects));
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121 | }
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122 | return node;
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123 | }
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124 |
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125 | public virtual void Populate(XmlNode node, IDictionary<Guid, IStorable> restoredObjects) {
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126 | for (int i = 0; i < node.ChildNodes.Count; i++) {
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127 | XmlNode childNode = node.ChildNodes[i];
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128 | IFunction function = (IFunction)PersistenceManager.Restore(childNode, restoredObjects);
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129 | IFunctionTree tree = function.GetTreeNode();
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130 | tree.Populate(childNode.SelectSingleNode("Tree"), restoredObjects);
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131 | AddSubTree(tree);
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132 | }
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133 | }
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134 |
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135 | #endregion
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136 | }
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137 | }
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