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 System.Xml;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 |
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29 | namespace HeuristicLab.Constraints {
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30 | public class ItemTypeConstraint : ConstraintBase {
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31 | private Type type;
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32 | public Type Type {
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33 | get { return type; }
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34 | set {
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35 | type = value;
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36 | OnChanged();
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37 | }
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38 | }
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39 |
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40 | public override string Description {
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41 | get {
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42 | return @"The ItemTypeConstraint limits the type of a given item.
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43 | If the item is a ConstrainedItemList, any containing elements are limited to the type and not the ConstrainedItemList itself.";
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44 | }
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45 | }
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46 |
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47 | public ItemTypeConstraint() {
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48 | type = typeof(ItemBase);
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49 | }
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50 |
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51 | public ItemTypeConstraint(Type type) {
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52 | this.type = type;
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53 | }
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54 |
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55 | /// <summary>
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56 | /// Copy constructor to create clones (deep).
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57 | /// </summary>
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58 | /// <param name="original">The original instance to be cloned.</param>
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59 | public ItemTypeConstraint(ItemTypeConstraint original) : this(original, new Dictionary<Guid, object>()) { }
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60 |
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61 | /// <summary>
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62 | /// Copy constructor to create clones (deep) reusing already cloned object references.
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63 | /// </summary>
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64 | /// <param name="original">The instance to be cloned.</param>
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65 | /// <param name="clonedObjects">Already cloned objects (for referential integrity).</param>
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66 | protected ItemTypeConstraint(ItemTypeConstraint original, IDictionary<Guid, object> clonedObjects)
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67 | : base(original, clonedObjects) { }
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68 |
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69 | public override bool Check(IItem data) {
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70 | ConstrainedItemList list = (data as ConstrainedItemList);
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71 | if (list != null) {
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72 | for (int i = 0; i < list.Count; i++)
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73 | if (!list[i].GetType().Equals(type)) return false;
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74 | return true;
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75 | }
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76 | return data.GetType().Equals(type);
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77 | }
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78 |
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79 | public override IView CreateView() {
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80 | return new ItemTypeConstraintView(this);
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81 | }
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82 |
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83 | #region clone & persistence
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84 | /// <summary>
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85 | /// Clones an instance using the copy constructor
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86 | /// reusing already cloned object references.
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87 | /// </summary>
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88 | /// <param name="clonedObjects">Already cloned objects (for referential integrity).</param>
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89 | /// <returns>A cloned (deep) instance</returns>
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90 | public override object Clone(IDictionary<Guid, object> clonedObjects) {
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91 | return new ItemTypeConstraint(this, clonedObjects);
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92 | }
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93 |
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94 | public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid, IStorable> persistedObjects) {
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95 | XmlNode node = base.GetXmlNode(name, document, persistedObjects);
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96 | XmlAttribute itemTypeAttribute = document.CreateAttribute("ItemType");
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97 | itemTypeAttribute.Value = PersistenceManager.BuildTypeString(Type);
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98 | node.Attributes.Append(itemTypeAttribute);
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99 | return node;
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100 | }
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101 |
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102 | public override void Populate(XmlNode node, IDictionary<Guid, IStorable> restoredObjects) {
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103 | base.Populate(node, restoredObjects);
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104 | XmlAttribute itemTypeAttribute = node.Attributes["ItemType"];
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105 | type = Type.GetType(itemTypeAttribute.Value);
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106 | }
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107 | #endregion
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108 | }
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109 | }
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