[2740] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[16453] | 3 | * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2740] | 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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[3659] | 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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[2756] | 25 | using HeuristicLab.Common;
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[2740] | 26 | using HeuristicLab.Core;
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[16559] | 27 | using HEAL.Attic;
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[2740] | 28 |
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| 29 | namespace HeuristicLab.Parameters {
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| 30 | /// <summary>
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[3659] | 31 | /// A generic parameter representing instances of type T which are collected from or written to scope tree.
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[2740] | 32 | /// </summary>
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[3822] | 33 | [Item("ScopeTreeLookupParameter", "A generic parameter representing instances of type T which are collected from or written to scope tree.")]
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[16462] | 34 | [StorableType("51F36637-C22C-4CDC-B34B-F49CA7896E35")]
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[3663] | 35 | public class ScopeTreeLookupParameter<T> : LookupParameter<ItemArray<T>>, IScopeTreeLookupParameter<T> where T : class, IItem {
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[3659] | 36 | [Storable]
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| 37 | private int depth;
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| 38 | public int Depth {
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| 39 | get { return depth; }
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| 40 | set {
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| 41 | if (value < 0) throw new ArgumentException("Depth must be larger than or equal to 0.");
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| 42 | if (depth != value) {
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| 43 | depth = value;
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| 44 | OnDepthChanged();
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| 45 | }
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| 46 | }
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| 47 | }
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[2740] | 48 |
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[4722] | 49 | [StorableConstructor]
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[16462] | 50 | protected ScopeTreeLookupParameter(StorableConstructorFlag _) : base(_) { }
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[4722] | 51 | protected ScopeTreeLookupParameter(ScopeTreeLookupParameter<T> original, Cloner cloner)
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| 52 | : base(original, cloner) {
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| 53 | depth = original.depth;
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| 54 | }
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[3659] | 55 | public ScopeTreeLookupParameter()
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| 56 | : base() {
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| 57 | depth = 1;
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| 58 | }
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| 59 | public ScopeTreeLookupParameter(string name)
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| 60 | : base(name) {
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| 61 | depth = 1;
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| 62 | }
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[3740] | 63 | public ScopeTreeLookupParameter(string name, int depth)
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| 64 | : base(name) {
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| 65 | this.depth = depth;
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| 66 | }
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[3659] | 67 | public ScopeTreeLookupParameter(string name, string description)
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| 68 | : base(name, description) {
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| 69 | depth = 1;
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| 70 | }
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[3740] | 71 | public ScopeTreeLookupParameter(string name, string description, int depth)
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| 72 | : base(name, description) {
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| 73 | this.depth = depth;
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| 74 | }
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[3659] | 75 | public ScopeTreeLookupParameter(string name, string description, string actualName)
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| 76 | : base(name, description, actualName) {
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| 77 | depth = 1;
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| 78 | }
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[3740] | 79 | public ScopeTreeLookupParameter(string name, string description, string actualName, int depth)
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| 80 | : base(name, description, actualName) {
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| 81 | this.depth = depth;
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| 82 | }
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[3659] | 83 |
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| 84 | public override IDeepCloneable Clone(Cloner cloner) {
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[4722] | 85 | return new ScopeTreeLookupParameter<T>(this, cloner);
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[3659] | 86 | }
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| 87 |
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[2757] | 88 | protected override IItem GetActualValue() {
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[3659] | 89 | IEnumerable<IScope> scopes = new IScope[] { ExecutionContext.Scope };
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| 90 | for (int i = 0; i < depth; i++)
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| 91 | scopes = scopes.Select(x => (IEnumerable<IScope>)x.SubScopes).Aggregate((a, b) => a.Concat(b));
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| 92 |
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[3687] | 93 | string name = TranslatedName;
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[3659] | 94 | List<T> values = new List<T>();
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[2740] | 95 | IVariable var;
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[2756] | 96 | T value;
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[3659] | 97 | foreach (IScope scope in scopes) {
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| 98 | scope.Variables.TryGetValue(name, out var);
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[2756] | 99 | if (var != null) {
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| 100 | value = var.Value as T;
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[2852] | 101 | if ((var.Value != null) && (value == null))
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[2756] | 102 | throw new InvalidOperationException(
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| 103 | string.Format("Type mismatch. Variable \"{0}\" does not contain a \"{1}\".",
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| 104 | name,
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| 105 | typeof(T).GetPrettyName())
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| 106 | );
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[3659] | 107 | values.Add(value);
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[2756] | 108 | }
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[2740] | 109 | }
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[3659] | 110 | return new ItemArray<T>(values);
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[2740] | 111 | }
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[2757] | 112 | protected override void SetActualValue(IItem value) {
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| 113 | ItemArray<T> values = value as ItemArray<T>;
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| 114 | if (values == null)
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| 115 | throw new InvalidOperationException(
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| 116 | string.Format("Type mismatch. Value is not a \"{0}\".",
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| 117 | typeof(ItemArray<T>).GetPrettyName())
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| 118 | );
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| 119 |
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[3659] | 120 | IEnumerable<IScope> scopes = new IScope[] { ExecutionContext.Scope };
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| 121 | for (int i = 0; i < depth; i++)
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| 122 | scopes = scopes.Select(x => (IEnumerable<IScope>)x.SubScopes).Aggregate((a, b) => a.Concat(b));
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| 123 |
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| 124 | if (scopes.Count() != values.Length) throw new InvalidOperationException("Number of values is not equal to number of scopes.");
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| 125 |
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[3687] | 126 | string name = TranslatedName;
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[3659] | 127 | int j = 0;
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[2740] | 128 | IVariable var;
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[3659] | 129 | foreach (IScope scope in scopes) {
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| 130 | scope.Variables.TryGetValue(name, out var);
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| 131 | if (var != null) var.Value = values[j];
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| 132 | else scope.Variables.Add(new Variable(name, values[j]));
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| 133 | j++;
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[2740] | 134 | }
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| 135 | }
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[3659] | 136 |
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| 137 | public event EventHandler DepthChanged;
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| 138 | protected virtual void OnDepthChanged() {
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| 139 | EventHandler handler = DepthChanged;
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| 140 | if (handler != null) handler(this, EventArgs.Empty);
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| 141 | }
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[2740] | 142 | }
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| 143 | }
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