source: branches/2864_PermutationProblems/HeuristicLab.Problems.PFSP/3.3/Evaluators/MakeSpanEvaluator.cs @ 15541

Last change on this file since 15541 was 15541, checked in by fholzing, 21 months ago

#2864: CleanUp of old code, added LOP benchmark instances

File size: 4.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Encodings.PermutationEncoding;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.Problems.PFSP
31{
32    /// <summary>
33    /// A base class for operators which evaluate PFSP solutions given in matrix representation
34    /// </summary>
35    [Item("MakeSpanEvaluator", "A base class for operators which evaluate PFSP solutions given in matrix representation.")]
36    [StorableClass]
37    public abstract class MakeSpanEvaluator : PFSPEvaluator, IMakespanEvaluator
38    {
39        public ILookupParameter<Permutation> PermutationParameter { get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; } }
40        public ILookupParameter<JobMatrix> JobMatrixParameter { get { return (ILookupParameter<JobMatrix>)Parameters["JobMatrix"]; } }
41        public ILookupParameter<Permutation> BestKnownSolutionParameter { get { return (ILookupParameter<Permutation>)Parameters["BestKnownSolution"]; } }
42        public ILookupParameter<DoubleValue> BestKnownQualityParameter { get { return (ILookupParameter<DoubleValue>)Parameters["BestKnownQuality"]; } }
43        [StorableConstructor]
44        protected MakeSpanEvaluator(bool deserializing) : base(deserializing) { }
45        protected MakeSpanEvaluator(MakeSpanEvaluator original, Cloner cloner) : base(original, cloner) { }
46        protected MakeSpanEvaluator()
47          : base()
48        {
49            Parameters.Add(new LookupParameter<Permutation>("Permutation", "The PFSP solution given in matrix representation which should be evaluated."));
50            Parameters.Add(new LookupParameter<JobMatrix>("JobMatrix", "The matrix which contains the job-duration on the machines."));
51            Parameters.Add(new LookupParameter<Permutation>("BestKnownSolution", "The currently best known solution."));
52            Parameters.Add(new LookupParameter<DoubleValue>("BestKnownQuality", "The currently best known quality."));
53        }
54
55        [StorableHook(HookType.AfterDeserialization)]
56        private void AfterDeserialization() { }
57
58        public static double Apply(MakeSpanEvaluator evaluator, DoubleMatrix matrix, Permutation tour)
59        {
60            return evaluator.CalculateMakespan(matrix, tour);
61        }
62
63        public sealed override IOperation InstrumentedApply()
64        {
65            Permutation p = PermutationParameter.ActualValue;
66            DoubleMatrix c = JobMatrixParameter.ActualValue;
67            if (c == null) throw new InvalidOperationException("No matrix was given.");
68
69            double makespan = CalculateMakespan(c, p);
70            QualityParameter.ActualValue = new DoubleValue(makespan);
71
72            if (BestKnownQualityParameter.ActualValue == null || BestKnownQualityParameter.ActualValue.Value > makespan)
73            {
74                BestKnownSolutionParameter.ActualValue = p;
75                BestKnownQualityParameter.ActualValue = new DoubleValue(makespan);
76            }
77            return base.InstrumentedApply();
78        }
79
80        protected abstract double CalculateMakespan(DoubleMatrix matrix, Permutation perm);
81    }
82}
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