1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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.Linq;
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25 | using HeuristicLab.Core;
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26 | using HeuristicLab.Operators;
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27 | using HeuristicLab.Parameters;
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28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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29 | using HeuristicLab.Data;
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30 | using System.Collections;
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31 | using HeuristicLab.Optimization;
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32 |
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33 | namespace HeuristicLab.Problems.ExternalEvaluation {
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34 | [Item("ExternalEvaluationValuesCollector", "Creates a solution message, and communicates it via the driver to receive a quality message.")]
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35 | [StorableClass]
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36 | public class ExternalEvaluator : ValuesCollector, IExternalEvaluationProblemEvaluator {
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37 | public ILookupParameter<DoubleValue> QualityParameter {
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38 | get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
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39 | }
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40 | public IValueLookupParameter<IExternalEvaluationDriver> DriverParameter {
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41 | get { return (IValueLookupParameter<IExternalEvaluationDriver>)Parameters["Driver"]; }
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42 | }
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43 |
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44 | public ExternalEvaluator()
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45 | : base() {
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46 | Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of the current solution."));
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47 | Parameters.Add(new ValueLookupParameter<IExternalEvaluationDriver>("Driver", "The driver to communicate with the external process."));
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48 | }
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49 |
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50 | public override IOperation Apply() {
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51 | IExternalEvaluationDriver driver = DriverParameter.ActualValue;
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52 | SolutionMessage.Builder messageBuilder = SolutionMessage.CreateBuilder();
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53 | messageBuilder.SolutionId = 0;
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54 | foreach (IParameter param in CollectedValues) {
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55 | IItem value = param.ActualValue;
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56 | if (value != null) {
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57 | ILookupParameter lookupParam = param as ILookupParameter;
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58 | string name = lookupParam != null ? lookupParam.TranslatedName : param.Name;
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59 | try {
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60 | value.AddToSolutionMessage(name, messageBuilder);
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61 | } catch (ArgumentException ex) {
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62 | throw new InvalidOperationException("ERROR in " + Name + ": Parameter " + name + " cannot be added to the message.", ex);
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63 | }
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64 | }
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65 | }
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66 | QualityMessage answer = driver.Evaluate(messageBuilder.Build());
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67 | if (QualityParameter.ActualValue == null)
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68 | QualityParameter.ActualValue = new DoubleValue(answer.Quality);
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69 | else QualityParameter.ActualValue.Value = answer.Quality;
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70 |
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71 | return base.Apply();
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72 | }
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73 | }
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74 | }
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