#region License Information /* HeuristicLab * Copyright (C) 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 System.Runtime.InteropServices; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Data; using HeuristicLab.Parameters; using HEAL.Attic; 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 MATLAB script.")] [StorableType("C1BE88E2-B48F-4EB6-9F9F-25082639DA5C")] public sealed class MatlabParameterVectorEvaluator : ParameterVectorEvaluator { private const string QualityVariableParameterName = "QualityVariableName"; private const string MatlabEvaluationScriptParameterName = "MATLABEvaluationScript"; private const string MatlabInitializationScriptParameterName = "MATLABInitializationScript"; #region parameters public ILookupParameter QualityVariableParameter { get { return (ILookupParameter)Parameters[QualityVariableParameterName]; } } public ILookupParameter MatlabEvaluationScriptParameter { get { return (ILookupParameter)Parameters[MatlabEvaluationScriptParameterName]; } } public ILookupParameter MatlabInitializationScriptParameter { get { return (ILookupParameter)Parameters[MatlabInitializationScriptParameterName]; } } #endregion [StorableConstructor] private MatlabParameterVectorEvaluator(StorableConstructorFlag _) : base(_) { } 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 calculated in the MATLAB script.")); Parameters.Add(new LookupParameter(MatlabEvaluationScriptParameterName, "The path to the MATLAB evaluation script.")); Parameters.Add(new LookupParameter(MatlabInitializationScriptParameterName, "The path to a MATLAB script for initialization that should be executed once when the algorithm starts.")); } public override void ClearState() { //mkommend: necessary because matlabConnector.Quit() does not work try { if (matLabConnector != null) matLabConnector.Execute("exit"); } catch (COMException) { } finally { matLabConnector = null; } changedDirectory = false; base.ClearState(); } private MLApp.MLApp matLabConnector; private bool changedDirectory = false; private readonly object locker = new object(); public override IOperation Apply() { lock (locker) { var initializationScript = MatlabInitializationScriptParameter.ActualValue; if (!string.IsNullOrEmpty(initializationScript.Value) && !initializationScript.Exists()) throw new FileNotFoundException(string.Format("The initialization script \"{0}\" cannot be found.", initializationScript.Value)); 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)); string result; if (matLabConnector == null) { Type matlabtype = Type.GetTypeFromProgID("matlab.application.single"); matLabConnector = (MLApp.MLApp)Activator.CreateInstance(matlabtype); matLabConnector.Visible = 0; if (!string.IsNullOrEmpty(initializationScript.Value)) { var directoryName = Path.GetDirectoryName(initializationScript.Value); if (string.IsNullOrEmpty(directoryName)) directoryName = Environment.CurrentDirectory; result = matLabConnector.Execute(string.Format("cd '{0}'", directoryName)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); result = matLabConnector.Execute(Path.GetFileNameWithoutExtension(initializationScript.Value)); if (!string.IsNullOrEmpty(result)) throw new InvalidOperationException(result); } } if (!changedDirectory) { var directoryName = Path.GetDirectoryName(evaluationScript.Value); if (string.IsNullOrEmpty(directoryName)) directoryName = Environment.CurrentDirectory; result = matLabConnector.Execute(string.Format("cd '{0}'", directoryName)); 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(evaluationScript.Value)); 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(); } } } }