[15562] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2017 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.Threading;
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| 25 | using HeuristicLab.Common;
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| 26 | using HeuristicLab.Core;
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| 27 | using HeuristicLab.Data;
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| 28 | using HeuristicLab.Parameters;
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| 29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 30 |
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| 31 | namespace HeuristicLab.Problems.GeneralizedQuadraticAssignment.Algorithms {
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| 32 | public class BasicContext : ParameterizedNamedItem, IContext {
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| 33 |
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| 34 | private IExecutionContext parent;
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| 35 | public IExecutionContext Parent {
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| 36 | get { return parent; }
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| 37 | set { parent = value; }
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| 38 | }
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| 39 |
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| 40 | [Storable]
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| 41 | private IScope scope;
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| 42 | public IScope Scope {
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| 43 | get { return scope; }
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| 44 | private set { scope = value; }
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| 45 | }
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| 46 |
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| 47 | IKeyedItemCollection<string, IParameter> IExecutionContext.Parameters {
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| 48 | get { return Parameters; }
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| 49 | }
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| 50 |
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| 51 | [Storable]
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| 52 | private IFixedValueParameter<IntValue> iterations;
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| 53 | public int Iterations {
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| 54 | get { return iterations.Value.Value; }
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| 55 | set { iterations.Value.Value = value; }
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| 56 | }
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| 57 |
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| 58 | [Storable]
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| 59 | private IFixedValueParameter<IntValue> evaluatedSolutions;
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| 60 | public int EvaluatedSolutions {
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| 61 | get { return evaluatedSolutions.Value.Value; }
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| 62 | set { evaluatedSolutions.Value.Value = value; }
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| 63 | }
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| 64 |
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[15572] | 65 | [Storable]
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| 66 | private IValueParameter<DoubleValue> bestQuality;
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| 67 | public double BestQuality {
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| 68 | get { return bestQuality.Value.Value; }
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| 69 | set { bestQuality.Value.Value = value; }
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| 70 | }
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| 71 |
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[15562] | 72 | [StorableConstructor]
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| 73 | protected BasicContext(bool deserializing) : base(deserializing) { }
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| 74 | protected BasicContext(BasicContext original, Cloner cloner)
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| 75 | : base(original, cloner) {
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| 76 | scope = cloner.Clone(original.scope);
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| 77 | iterations = cloner.Clone(original.iterations);
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| 78 | evaluatedSolutions = cloner.Clone(original.evaluatedSolutions);
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[15572] | 79 | bestQuality = cloner.Clone(original.bestQuality);
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[15562] | 80 | }
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| 81 | protected BasicContext() : base() {
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| 82 | scope = new Scope("Global");
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| 83 | Parameters.Add(iterations = new FixedValueParameter<IntValue>("Iterations", new IntValue(0)));
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| 84 | Parameters.Add(evaluatedSolutions = new FixedValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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[15572] | 85 | Parameters.Add(bestQuality = new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(double.NaN)));
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[15562] | 86 | }
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| 87 | protected BasicContext(string name) : base(name) {
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| 88 | scope = new Scope("Global");
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| 89 | Parameters.Add(iterations = new FixedValueParameter<IntValue>("Iterations", new IntValue(0)));
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| 90 | Parameters.Add(evaluatedSolutions = new FixedValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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[15572] | 91 | Parameters.Add(bestQuality = new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(double.NaN)));
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[15562] | 92 | }
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| 93 | protected BasicContext(string name, ParameterCollection parameters) : base(name, parameters) {
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| 94 | scope = new Scope("Global");
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| 95 | Parameters.Add(iterations = new FixedValueParameter<IntValue>("Iterations", new IntValue(0)));
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| 96 | Parameters.Add(evaluatedSolutions = new FixedValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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[15572] | 97 | Parameters.Add(bestQuality = new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(double.NaN)));
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[15562] | 98 | }
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| 99 | protected BasicContext(string name, string description) : base(name, description) {
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| 100 | scope = new Scope("Global");
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| 101 | Parameters.Add(iterations = new FixedValueParameter<IntValue>("Iterations", new IntValue(0)));
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| 102 | Parameters.Add(evaluatedSolutions = new FixedValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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[15572] | 103 | Parameters.Add(bestQuality = new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(double.NaN)));
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[15562] | 104 | }
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| 105 | protected BasicContext(string name, string description, ParameterCollection parameters) : base(name, description, parameters) {
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| 106 | scope = new Scope("Global");
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| 107 | Parameters.Add(iterations = new FixedValueParameter<IntValue>("Iterations", new IntValue(0)));
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| 108 | Parameters.Add(evaluatedSolutions = new FixedValueParameter<IntValue>("EvaluatedSolutions", new IntValue(0)));
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[15572] | 109 | Parameters.Add(bestQuality = new ValueParameter<DoubleValue>("BestQuality", new DoubleValue(double.NaN)));
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[15562] | 110 | }
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| 111 |
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| 112 | public override IDeepCloneable Clone(Cloner cloner) {
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| 113 | return new BasicContext(this, cloner);
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| 114 | }
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| 115 |
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| 116 | public void RunOperator(IOperator op, IScope scope, CancellationToken cancellationToken) {
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| 117 | var stack = new Stack<IOperation>();
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| 118 | stack.Push(((IExecutionContext)this).CreateChildOperation(op, scope));
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| 119 |
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| 120 | while (stack.Count > 0) {
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| 121 | cancellationToken.ThrowIfCancellationRequested();
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| 122 |
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| 123 | var next = stack.Pop();
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| 124 | if (next is OperationCollection) {
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| 125 | var coll = (OperationCollection)next;
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| 126 | for (int i = coll.Count - 1; i >= 0; i--)
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| 127 | if (coll[i] != null) stack.Push(coll[i]);
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| 128 | } else if (next is IAtomicOperation) {
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| 129 | var operation = (IAtomicOperation)next;
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| 130 | try {
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| 131 | next = operation.Operator.Execute((IExecutionContext)operation, cancellationToken);
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| 132 | } catch (Exception ex) {
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| 133 | stack.Push(operation);
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| 134 | if (ex is OperationCanceledException) throw ex;
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| 135 | else throw new OperatorExecutionException(operation.Operator, ex);
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| 136 | }
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| 137 | if (next != null) stack.Push(next);
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| 138 | }
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| 139 | }
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| 140 | }
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| 141 |
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| 142 | #region IExecutionContext members
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| 143 | IAtomicOperation IExecutionContext.CreateOperation(IOperator op) {
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| 144 | return new Core.ExecutionContext(this, op, Scope);
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| 145 | }
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| 146 | IAtomicOperation IExecutionContext.CreateOperation(IOperator op, IScope s) {
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| 147 | return new Core.ExecutionContext(this, op, s);
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| 148 | }
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| 149 | IAtomicOperation IExecutionContext.CreateChildOperation(IOperator op) {
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| 150 | return new Core.ExecutionContext(this, op, Scope);
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| 151 | }
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| 152 | IAtomicOperation IExecutionContext.CreateChildOperation(IOperator op, IScope s) {
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| 153 | return new Core.ExecutionContext(this, op, s);
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| 154 | }
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| 155 | #endregion
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| 156 | }
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| 157 | }
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