#region License Information
/* HeuristicLab
* Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using HeuristicLab.Analysis;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Encodings.RealVectorEncoding;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Problems.Programmable {
[Item("Programmable Problem (single-objective)", "Represents a single-objective problem that can be programmed.")]
[Creatable("Problems")]
[StorableClass]
public class SingleObjectiveProgrammableProblem : SingleObjectiveHeuristicOptimizationProblem, IParameterizedNamedItem, IStorableContent {
public string Filename { get; set; }
public static new Image StaticItemImage {
get { return Common.Resources.VSImageLibrary.Script; }
}
public new ParameterCollection Parameters {
get { return base.Parameters; }
}
IKeyedItemCollection IParameterizedItem.Parameters {
get { return Parameters; }
}
public IValueParameter ProblemDefinitionParameter {
get { return (IValueParameter)Parameters["ProblemDefinition"]; }
}
protected IValueParameter EncodingParameter {
get { return (IValueParameter)Parameters["Encoding"]; }
}
public ISingleObjectiveProblemDefinition ProblemDefinition {
get { return ProblemDefinitionParameter.Value; }
set { ProblemDefinitionParameter.Value = value; }
}
public override IEnumerable ExecutionContextItems {
get { return base.ExecutionContextItems.Concat(new[] { ProblemDefinition.Encoding }); }
}
protected override IEnumerable GetOperators() {
return base.GetOperators().Concat(ProblemDefinition.Encoding.Operators);
}
[StorableConstructor]
protected SingleObjectiveProgrammableProblem(bool deserializing) : base(deserializing) { }
protected SingleObjectiveProgrammableProblem(SingleObjectiveProgrammableProblem original, Cloner cloner)
: base(original, cloner) {
RegisterEventHandlers();
}
public SingleObjectiveProgrammableProblem()
: base(new SingleObjectiveEvaluator(), new MultiEncodingCreator()) {
Parameters.Add(new ValueParameter("ProblemDefinition", "Defines the problem.", new SingleObjectiveProblemScript() { Name = Name }));
Parameters.Add(new ValueParameter("Encoding", "Describes the configuration of the encoding, what the variables are called, what type they are and their bounds if any."));
Operators.Add(new BestScopeSolutionAnalyzer());
Operators.Add(new SingleObjectiveAnalyzer());
Operators.Add(Evaluator);
RegisterEventHandlers();
}
public override IDeepCloneable Clone(Cloner cloner) {
return new SingleObjectiveProgrammableProblem(this, cloner);
}
[StorableHook(HookType.AfterDeserialization)]
// ReSharper disable UnusedMember.Local
private void AfterDeserialization() {
RegisterEventHandlers();
}
// ReSharper restore UnusedMember.Local
private void RegisterEventHandlers() {
ProblemDefinitionParameter.ValueChanged += ProblemDefinitionParameterOnValueChanged;
RegisterProblemDefinitionEventHandlers();
}
private void ProblemDefinitionParameterOnValueChanged(object sender, EventArgs eventArgs) {
RegisterProblemDefinitionEventHandlers();
Parameterize();
}
private void RegisterProblemDefinitionEventHandlers() {
ProblemDefinitionParameter.Value.ProblemDefinitionChanged += ProblemDefinitionChanged;
ProblemDefinitionParameter.Value.NameChanged += ProblemDefinitionNameChanged;
}
private void ProblemDefinitionNameChanged(object sender, EventArgs eventArgs) {
if (sender != ProblemDefinitionParameter.Value) return;
Name = ProblemDefinitionParameter.Value.Name;
}
protected override void OnNameChanged() {
base.OnNameChanged();
ProblemDefinitionParameter.Value.Name = Name;
}
protected override void OnEvaluatorChanged() {
base.OnEvaluatorChanged();
Parameterize();
}
protected virtual void ProblemDefinitionChanged(object sender, EventArgs eventArgs) {
Parameterize();
}
protected virtual void Parameterize() {
var definition = ProblemDefinitionParameter.Value;
if (definition == null) return;
IEncoding encoding = definition.Encoding;
SolutionCreator = encoding.SolutionCreator;
EncodingParameter.Value = encoding;
Maximization.Value = definition.IsMaximizationProblem;
Evaluator.EncodingParameter.ActualName = EncodingParameter.Name;
Evaluator.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
foreach (var evalOp in Operators.OfType()) {
evalOp.EncodingParameter.ActualName = EncodingParameter.Name;
evalOp.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
}
foreach (var analyzeOp in Operators.OfType()) {
analyzeOp.EncodingParameter.ActualName = EncodingParameter.Name;
analyzeOp.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
analyzeOp.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
}
ConfigureSingleEncodingOperators();
UpdateImprovementOperators();
UpdateMoveOperators();
}
protected virtual void ConfigureSingleEncodingOperators() {
foreach (var su in GetOperators().OfType()) {
su.MaximizationParameter.ActualName = MaximizationParameter.Name;
}
}
protected virtual void UpdateImprovementOperators() {
if (!Operators.Any(x => x is SingleObjectiveImprover))
Operators.Add(new SingleObjectiveImprover());
foreach (var improver in Operators.OfType()) {
improver.EncodingParameter.ActualName = EncodingParameter.Name;
improver.MaximizationParameter.ActualName = MaximizationParameter.Name;
improver.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
improver.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
}
}
protected virtual void UpdateMoveOperators() {
if (!Operators.Any(x => x is SingleObjectiveMoveGenerator))
Operators.Add(new SingleObjectiveMoveGenerator());
if (!Operators.Any(x => x is SingleObjectiveMoveEvaluator))
Operators.Add(new SingleObjectiveMoveEvaluator());
if (!Operators.Any(x => x is SingleObjectiveMoveMaker))
Operators.Add(new SingleObjectiveMoveMaker());
foreach (var generator in Operators.OfType()) {
generator.EncodingParameter.ActualName = EncodingParameter.Name;
generator.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
}
foreach (var evaluator in Operators.OfType()) {
evaluator.EncodingParameter.ActualName = EncodingParameter.Name;
evaluator.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
evaluator.ProblemDefinitionParameter.ActualName = ProblemDefinitionParameter.Name;
}
foreach (var maker in Operators.OfType()) {
maker.EncodingParameter.ActualName = EncodingParameter.Name;
maker.MoveQualityParameter.ActualName = Operators.OfType().First().MoveQualityParameter.ActualName;
maker.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
}
}
}
}