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.Collections.Generic;
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23 | using System.Drawing;
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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.Networks {
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29 | [Item("Node", "Abstract base class for nodes of a network.")]
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30 | [StorableClass]
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31 | public abstract class Node : NetworkItem, INode {
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32 | public static new Image StaticItemImage {
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33 | get { return HeuristicLab.Common.Resources.VSImageLibrary.RadialChart; }
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34 | }
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35 |
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36 | new public INetwork Parent {
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37 | get { return (INetwork)base.Parent; }
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38 | set {
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39 | // NOTE: never call setter directly as the Parent property is set by the network which contains the node
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40 | base.Parent = value;
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41 | }
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42 | }
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43 | public override IEnumerable<INetworkItem> Children {
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44 | get { return base.Children.Concat(Ports.AsEnumerable<INetworkItem>()); }
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45 | }
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46 |
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47 | [Storable]
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48 | private PortCollection ports;
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49 | protected PortCollection Ports {
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50 | get { return ports; }
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51 | }
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52 | private ReadOnlyKeyedItemCollection<string, IPort> readOnlyPorts;
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53 | IKeyedItemCollection<string, IPort> INode.Ports {
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54 | get {
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55 | if (readOnlyPorts == null) readOnlyPorts = ports.AsReadOnly();
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56 | return readOnlyPorts;
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57 | }
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58 | }
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59 |
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60 | [StorableConstructor]
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61 | protected Node(bool deserializing) : base(deserializing) { }
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62 | protected Node(Node original, Cloner cloner)
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63 | : base(original, cloner) {
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64 | ports = cloner.Clone(original.ports);
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65 | foreach (var p in Ports)
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66 | p.Parent = this;
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67 | readOnlyPorts = null;
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68 | RegisterPortsEvents();
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69 | }
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70 | protected Node()
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71 | : base("Node") {
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72 | ports = new PortCollection();
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73 | readOnlyPorts = null;
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74 | RegisterPortsEvents();
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75 | }
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76 | protected Node(string name)
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77 | : base(name) {
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78 | ports = new PortCollection();
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79 | readOnlyPorts = null;
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80 | RegisterPortsEvents();
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81 | }
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82 | protected Node(string name, string description)
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83 | : base(name, description) {
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84 | ports = new PortCollection();
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85 | readOnlyPorts = null;
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86 | RegisterPortsEvents();
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87 | }
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88 |
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89 | [StorableHook(HookType.AfterDeserialization)]
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90 | private void AfterDeserialization() {
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91 | foreach (var p in Ports)
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92 | p.Parent = this;
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93 | RegisterPortsEvents();
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94 | }
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95 |
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96 | #region Ports Events
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97 | protected virtual void RegisterPortsEvents() {
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98 | ports.ItemsAdded += Ports_ItemsAdded;
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99 | ports.ItemsRemoved += Ports_ItemsRemoved;
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100 | ports.ItemsReplaced += Ports_ItemsReplaced;
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101 | ports.CollectionReset += Ports_CollectionReset;
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102 | }
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103 | protected virtual void Ports_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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104 | foreach (var p in e.Items)
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105 | p.Parent = this;
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106 | }
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107 | protected virtual void Ports_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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108 | foreach (var p in e.Items)
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109 | p.Parent = null;
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110 | }
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111 | protected virtual void Ports_ItemsReplaced(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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112 | foreach (var p in e.OldItems)
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113 | p.Parent = null;
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114 | foreach (var p in e.Items)
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115 | p.Parent = this;
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116 | }
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117 | protected virtual void Ports_CollectionReset(object sender, Collections.CollectionItemsChangedEventArgs<IPort> e) {
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118 | foreach (var p in e.OldItems)
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119 | p.Parent = null;
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120 | foreach (var p in e.Items)
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121 | p.Parent = this;
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122 | }
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123 | #endregion
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124 | }
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125 | }
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