1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2014 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.Linq;
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25 | using HeuristicLab.Common;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 |
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28 | namespace HeuristicLab.Core {
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29 | [StorableClass]
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30 | public class Vertex : Item, IVertex {
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31 | [Storable]
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32 | private string label;
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33 | public string Label {
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34 | get { return label; }
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35 | set {
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36 | if (label.Equals(value)) return;
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37 | label = value;
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38 | OnChanged(this, EventArgs.Empty);
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39 | }
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40 | }
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41 |
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42 | [Storable]
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43 | private double weight;
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44 | public double Weight {
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45 | get { return weight; }
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46 | set {
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47 | if (weight.Equals(value)) return;
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48 | weight = value;
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49 | OnChanged(this, EventArgs.Empty);
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50 | }
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51 | }
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52 |
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53 | [Storable]
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54 | private IDeepCloneable data;
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55 | public IDeepCloneable Data {
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56 | get { return data; }
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57 | set {
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58 | if (data == value) return;
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59 | data = value;
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60 | OnChanged(this, EventArgs.Empty);
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61 | }
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62 | }
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63 |
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64 | private readonly List<IArc> inArcs = new List<IArc>();
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65 | public IEnumerable<IArc> InArcs {
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66 | get { return inArcs; }
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67 | }
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68 |
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69 | private readonly List<IArc> outArcs = new List<IArc>();
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70 | public IEnumerable<IArc> OutArcs {
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71 | get { return outArcs; }
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72 | }
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73 |
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74 | public int InDegree { get { return InArcs.Count(); } }
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75 | public int OutDegree { get { return OutArcs.Count(); } }
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76 | public int Degree { get { return InDegree + OutDegree; } }
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77 |
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78 | [StorableConstructor]
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79 | public Vertex(bool deserializing) : base(deserializing) { }
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80 |
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81 | [StorableHook(HookType.AfterDeserialization)]
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82 | private void AfterDeserialization() { }
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83 |
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84 | public Vertex(IDeepCloneable data) {
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85 | this.data = data;
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86 | }
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87 |
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88 | protected Vertex(Vertex original, Cloner cloner)
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89 | : base(original, cloner) {
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90 | data = cloner.Clone(original.Data);
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91 | label = original.Label;
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92 | weight = original.Weight;
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93 |
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94 | inArcs = original.InArcs.Select(cloner.Clone).ToList();
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95 | outArcs = original.OutArcs.Select(cloner.Clone).ToList();
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96 | }
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97 |
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98 | public override IDeepCloneable Clone(Cloner cloner) {
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99 | return new Vertex(this, cloner);
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100 | }
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101 |
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102 | public void AddArc(IArc arc) {
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103 | if (this != arc.Source && this != arc.Target)
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104 | throw new InvalidOperationException("The current vertex must be either the arc source or the arc target.");
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105 |
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106 | if (this == arc.Source) {
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107 | if (outArcs.Contains(arc)) throw new InvalidOperationException("Arc already added.");
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108 | outArcs.Add(arc);
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109 | }
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110 | if (this == arc.Target) {
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111 | if (inArcs.Contains(arc)) throw new InvalidOperationException("Arc already added.");
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112 | inArcs.Add(arc);
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113 | }
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114 | OnArcAdded(this, new EventArgs<IArc>(arc));
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115 | }
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116 |
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117 | public void RemoveArc(IArc arc) {
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118 | if (this != arc.Source && this != arc.Target)
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119 | throw new InvalidOperationException("The current vertex must be either the arc source or the arc target.");
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120 |
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121 | if (this == arc.Source) {
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122 | if (!outArcs.Remove(arc)) throw new InvalidOperationException("Arc is not present in this vertex' outgoing arcs.");
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123 | }
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124 | if (this == arc.Target) {
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125 | if (!inArcs.Remove(arc)) throw new InvalidOperationException("Arc is not present in this vertex' incoming arcs.");
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126 | }
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127 | OnArcRemoved(this, new EventArgs<IArc>(arc));
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128 | }
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129 |
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130 | #region events
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131 | // use the same event to signal a change in the content, weight or label
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132 | public event EventHandler Changed;
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133 | protected virtual void OnChanged(object sender, EventArgs args) {
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134 | var changed = Changed;
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135 | if (changed != null)
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136 | changed(sender, args);
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137 | }
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138 |
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139 | public event EventHandler<EventArgs<IArc>> ArcAdded;
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140 | protected virtual void OnArcAdded(object sender, EventArgs<IArc> args) {
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141 | var added = ArcAdded;
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142 | if (added != null)
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143 | added(sender, args);
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144 | }
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145 |
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146 | public event EventHandler<EventArgs<IArc>> ArcRemoved;
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147 | protected virtual void OnArcRemoved(object sender, EventArgs<IArc> args) {
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148 | var removed = ArcRemoved;
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149 | if (removed != null)
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150 | removed(sender, args);
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151 | }
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152 | #endregion
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153 | }
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154 |
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155 | [StorableClass]
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156 | public class Vertex<T> : Vertex, IVertex<T> where T : class,IItem {
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157 | public new T Data {
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158 | get { return (T)base.Data; }
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159 | set { base.Data = value; }
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160 | }
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161 |
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162 | [StorableConstructor]
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163 | protected Vertex(bool deserializing) : base(deserializing) { }
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164 |
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165 | protected Vertex(Vertex<T> original, Cloner cloner)
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166 | : base(original, cloner) {
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167 | }
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168 |
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169 | public override IDeepCloneable Clone(Cloner cloner) {
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170 | return new Vertex<T>(this, cloner);
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171 | }
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172 | }
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173 | }
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