#region License Information /* HeuristicLab * Copyright (C) 2002-2013 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.IO; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Data; using HeuristicLab.Parameters; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; using HeuristicLab.Problems.ParameterOptimization; namespace HeuristicLab.Problems.ExternalEvaluation.Matlab { [Item("MatLabParameterVectorEvaluator", "An evaluator which takes a parameter vector and returns a quality value, calculated by a Scilab script.")] [StorableClass] public sealed class MatlabParameterVectorEvaluator : ParameterVectorEvaluator { private const string QualityVariableParameterName = "QualityVariableName"; private const string MatlabEvaluationScriptParameterName = "MatlabEvaluationScript"; private const string InitializationScriptParameterName = "InitializationScript"; #region parameters public ILookupParameter QualityVariableParameter { get { return (ILookupParameter)Parameters[QualityVariableParameterName]; } } public ILookupParameter MatlabEvaluationScriptParameter { get { return (ILookupParameter)Parameters[MatlabEvaluationScriptParameterName]; } } public IFixedValueParameter InitializationScriptParameter { get { return (IFixedValueParameter)Parameters[InitializationScriptParameterName]; } } #endregion public TextFileValue InitializationScript { get { return InitializationScriptParameter.Value; } } [StorableConstructor] private MatlabParameterVectorEvaluator(bool deserializing) : base(deserializing) { } private MatlabParameterVectorEvaluator(MatlabParameterVectorEvaluator original, Cloner cloner) : base(original, cloner) { } public override IDeepCloneable Clone(Cloner cloner) { return new MatlabParameterVectorEvaluator(this, cloner); } public MatlabParameterVectorEvaluator() : base() { Parameters.Add(new LookupParameter(QualityVariableParameterName, "The name of the quality variable of the Matlab script.")); Parameters.Add(new LookupParameter(MatlabEvaluationScriptParameterName, "The path to the Matlab evaluation script.")); Parameters.Add(new FixedValueParameter(InitializationScriptParameterName, "The path to a Matlab script the should be execute before the evaluation starts.", new TextFileValue())); } [StorableHook(HookType.AfterDeserialization)] private void AfterDeserialization() { InitializeState(); } private MLApp.MLApp matLabConnector; public override void InitializeState() { base.InitializeState(); changedDirectory = false; if (matLabConnector == null) { Type matlabtype = Type.GetTypeFromProgID("matlab.application.single"); matLabConnector = (MLApp.MLApp)Activator.CreateInstance(matlabtype); matLabConnector.Visible = 0; } if (string.IsNullOrEmpty(InitializationScript.Value)) return; if (!InitializationScript.Exists()) throw new FileNotFoundException(string.Format("The initialization script \"{0}\" cannot be found.", InitializationScript.Value)); string initScript = InitializationScript.Value; string result = matLabConnector.Execute("cd " + Path.GetDirectoryName(initScript)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); result = matLabConnector.Execute(Path.GetFileNameWithoutExtension(initScript)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); } public override void ClearState() { matLabConnector.Execute("clear"); changedDirectory = false; base.ClearState(); } private bool changedDirectory = false; private readonly object locker = new object(); public override IOperation Apply() { var evaluationScript = MatlabEvaluationScriptParameter.ActualValue; if (string.IsNullOrEmpty(evaluationScript.Value)) throw new FileNotFoundException("The evaluation script in the problem is not set."); if (!evaluationScript.Exists()) throw new FileNotFoundException(string.Format("The evaluation script \"{0}\" cannot be found.", evaluationScript.Value)); lock (locker) { string result; string script = evaluationScript.Value; if (!changedDirectory) { result = matLabConnector.Execute("cd " + Path.GetDirectoryName(script)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); changedDirectory = true; } var parameterVector = ParameterVectorParameter.ActualValue; var parameterNames = ParameterNamesParameter.ActualValue; for (int i = 0; i < ProblemSizeParameter.ActualValue.Value; i++) { matLabConnector.PutWorkspaceData(parameterNames[i], "base", parameterVector[i]); } result = matLabConnector.Execute(Path.GetFileNameWithoutExtension(script)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); string qualityVariableName = QualityVariableParameter.ActualValue.Value; var quality = matLabConnector.GetVariable(qualityVariableName, "base"); if (double.IsNaN(quality)) quality = double.MaxValue; if (double.IsInfinity(quality)) quality = double.MaxValue; QualityParameter.ActualValue = new DoubleValue(quality); return base.Apply(); } } } }