source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Analyzer/BestSolution/TimeWindowed/BestTimeWindowedVRPSolutionAnalyzer.cs @ 4454

Last change on this file since 4454 was 4454, checked in by svonolfe, 9 years ago

Performed some code cleanup (#1177)

File size: 5.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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.Linq;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Operators;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29using HeuristicLab.Problems.VehicleRouting.Interfaces;
30using HeuristicLab.Problems.VehicleRouting.Variants;
31
32namespace HeuristicLab.Problems.VehicleRouting {
33  /// <summary>
34  /// An operator for analyzing the best solution of Vehicle Routing Problems.
35  /// </summary>
36  [Item("BestTimeWindowedVRPSolutionAnalyzer", "An operator for analyzing the best solution of time windowed Vehicle Routing Problems.")]
37  [StorableClass]
38  public sealed class BestTimeWindowedVRPSolutionAnalyzer : SingleSuccessorOperator, IAnalyzer, ITimeWindowedOperator {
39    public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
40      get { return (ILookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
41    }
42    public ScopeTreeLookupParameter<IVRPEncoding> VRPToursParameter {
43      get { return (ScopeTreeLookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
44    }
45    public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
46      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
47    }
48
49    public ScopeTreeLookupParameter<DoubleValue> TardinessParameter {
50      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Tardiness"]; }
51    }
52    public ScopeTreeLookupParameter<DoubleValue> TravelTimeParameter {
53      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["TravelTime"]; }
54    }
55
56    public LookupParameter<VRPSolution> BestSolutionParameter {
57      get { return (LookupParameter<VRPSolution>)Parameters["BestSolution"]; }
58    }
59    public ValueLookupParameter<ResultCollection> ResultsParameter {
60      get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
61    }
62
63    [StorableConstructor]
64    private BestTimeWindowedVRPSolutionAnalyzer(bool deserializing) : base(deserializing) { }
65
66    public BestTimeWindowedVRPSolutionAnalyzer()
67      : base() {
68        Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The problem instance."));
69        Parameters.Add(new ScopeTreeLookupParameter<IVRPEncoding>("VRPTours", "The VRP tours which should be evaluated."));
70        Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The qualities of the VRP solutions which should be analyzed."));
71
72        Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Tardiness", "The tardiness of the VRP solutions which should be analyzed."));
73        Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("TravelTime", "The travel times of the VRP solutions which should be analyzed."));
74 
75        Parameters.Add(new LookupParameter<VRPSolution>("BestSolution", "The best TSP solution."));
76        Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", "The result collection where the best VRP solution should be stored."));
77    }
78
79    public override IOperation Apply() {
80      ItemArray<IVRPEncoding> solutions = VRPToursParameter.ActualValue;
81      ResultCollection results = ResultsParameter.ActualValue;
82
83      ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
84      ItemArray<DoubleValue> tardinesses = TardinessParameter.ActualValue;
85      ItemArray<DoubleValue> travelTimes = TravelTimeParameter.ActualValue;
86
87      int i = qualities.Select((x, index) => new { index, x.Value }).OrderBy(x => x.Value).First().index;
88
89      IVRPEncoding best = solutions[i] as IVRPEncoding;
90      VRPSolution solution = BestSolutionParameter.ActualValue;
91      if (!results.ContainsKey("Best VRP Solution Tardiness")) {
92        results.Add(new Result("Best VRP Solution Tardiness", new DoubleValue(tardinesses[i].Value)));
93        results.Add(new Result("Best VRP Solution TravelTime", new DoubleValue(travelTimes[i].Value)));
94      } else {
95        if (qualities[i].Value <= solution.Quality.Value) {
96          (results["Best VRP Solution Tardiness"].Value as DoubleValue).Value = tardinesses[i].Value;
97          (results["Best VRP Solution TravelTime"].Value as DoubleValue).Value = travelTimes[i].Value;
98        }
99      }
100
101      return base.Apply();
102    }
103  }
104}
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