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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.3/Encodings/General/Creators/MultiVRPSolutionCreator.cs @ 4352

Last change on this file since 4352 was 4352, checked in by svonolfe, 14 years ago

Merged r4351 of the VRP feature branch into trunk (#1039)

File size: 6.9 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;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Core;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30using HeuristicLab.PluginInfrastructure;
31using HeuristicLab.Data;
32
33namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
34  [Item("MultiVRPSolutionCreator", "Randomly selects and applies one of its creator every time it is called.")]
35  [StorableClass]
36  public class MultiVRPSolutionCreator : StochasticMultiBranch<IVRPCreator>, IVRPCreator, IStochasticOperator {
37    public override bool CanChangeName {
38      get { return false; }
39    }
40    protected override bool CreateChildOperation {
41      get { return true; }
42    }
43
44    public ILookupParameter<IVRPEncoding> VRPToursParameter {
45      get { return (ILookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
46    }
47
48    public int Cities {
49      get { return CoordinatesParameter.ActualValue.Rows - 1; }
50    }
51    public ILookupParameter<DoubleMatrix> CoordinatesParameter {
52      get { return (ILookupParameter<DoubleMatrix>)Parameters["Coordinates"]; }
53    }
54    public ILookupParameter<DoubleMatrix> DistanceMatrixParameter {
55      get { return (ILookupParameter<DoubleMatrix>)Parameters["DistanceMatrix"]; }
56    }
57    public ILookupParameter<BoolValue> UseDistanceMatrixParameter {
58      get { return (ILookupParameter<BoolValue>)Parameters["UseDistanceMatrix"]; }
59    }
60    public ILookupParameter<IntValue> VehiclesParameter {
61      get { return (ILookupParameter<IntValue>)Parameters["Vehicles"]; }
62    }
63    public ILookupParameter<DoubleValue> CapacityParameter {
64      get { return (ILookupParameter<DoubleValue>)Parameters["Capacity"]; }
65    }
66    public ILookupParameter<DoubleArray> DemandParameter {
67      get { return (ILookupParameter<DoubleArray>)Parameters["Demand"]; }
68    }
69    public ILookupParameter<DoubleArray> ReadyTimeParameter {
70      get { return (ILookupParameter<DoubleArray>)Parameters["ReadyTime"]; }
71    }
72    public ILookupParameter<DoubleArray> DueTimeParameter {
73      get { return (ILookupParameter<DoubleArray>)Parameters["DueTime"]; }
74    }
75    public ILookupParameter<DoubleArray> ServiceTimeParameter {
76      get { return (ILookupParameter<DoubleArray>)Parameters["ServiceTime"]; }
77    }
78
79    [StorableConstructor]
80    private MultiVRPSolutionCreator(bool deserializing) : base(deserializing) { }
81    public MultiVRPSolutionCreator()
82      : base() {
83        Parameters.Add(new LookupParameter<IVRPEncoding>("VRPTours", "The new VRP tours."));
84
85        Parameters.Add(new ValueLookupParameter<IntValue>("Cities", "The city count."));
86        Parameters.Add(new LookupParameter<DoubleMatrix>("Coordinates", "The coordinates of the cities."));
87        Parameters.Add(new LookupParameter<DoubleMatrix>("DistanceMatrix", "The matrix which contains the distances between the cities."));
88        Parameters.Add(new LookupParameter<BoolValue>("UseDistanceMatrix", "True if a distance matrix should be calculated and used for evaluation, otherwise false."));
89        Parameters.Add(new LookupParameter<IntValue>("Vehicles", "The number of vehicles."));
90        Parameters.Add(new LookupParameter<DoubleValue>("Capacity", "The capacity of each vehicle."));
91        Parameters.Add(new LookupParameter<DoubleArray>("Demand", "The demand of each customer."));
92        Parameters.Add(new LookupParameter<DoubleArray>("ReadyTime", "The ready time of each customer."));
93        Parameters.Add(new LookupParameter<DoubleArray>("DueTime", "The due time of each customer."));
94        Parameters.Add(new LookupParameter<DoubleArray>("ServiceTime", "The service time of each customer."));
95
96        foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(IVRPCreator)).OrderBy(op => op.Name)) {
97          if (!typeof(MultiOperator<IVRPCreator>).IsAssignableFrom(type))
98            Operators.Add((IVRPCreator)Activator.CreateInstance(type), true);
99      }
100    }
101
102    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IVRPCreator>> e) {
103      base.Operators_ItemsReplaced(sender, e);
104      ParameterizeManipulators();
105    }
106
107    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IVRPCreator>> e) {
108      base.Operators_ItemsAdded(sender, e);
109      ParameterizeManipulators();
110    }
111
112    private void ParameterizeManipulators() {
113      foreach (IVRPCreator creator in Operators.OfType<IVRPCreator>()) {
114        creator.VRPToursParameter.ActualName = VRPToursParameter.Name;
115
116        if (creator.CoordinatesParameter != null) creator.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
117        if (creator.DistanceMatrixParameter != null) creator.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
118        if (creator.UseDistanceMatrixParameter != null) creator.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
119        if (creator.VehiclesParameter != null) creator.VehiclesParameter.ActualName = VehiclesParameter.Name;
120        if (creator.CapacityParameter != null) creator.CapacityParameter.ActualName = CapacityParameter.Name;
121        if (creator.DemandParameter != null) creator.DemandParameter.ActualName = DemandParameter.Name;
122        if (creator.ReadyTimeParameter != null) creator.ReadyTimeParameter.ActualName = ReadyTimeParameter.Name;
123        if (creator.DueTimeParameter != null) creator.DueTimeParameter.ActualName = DueTimeParameter.Name;
124        if (creator.ServiceTimeParameter != null) creator.ServiceTimeParameter.ActualName = ServiceTimeParameter.Name;
125      }
126      foreach (IStochasticOperator manipulator in Operators.OfType<IStochasticOperator>()) {
127        manipulator.RandomParameter.ActualName = RandomParameter.Name;
128      }
129    }
130
131    public override IOperation Apply() {
132      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one VRP creator to choose from.");
133      return base.Apply();
134    }
135  }
136}
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