source: trunk/sources/HeuristicLab.Encodings.ScheduleEncoding/3.3/PermutationWithRepetition/PWREncoding.cs @ 9456

Last change on this file since 9456 was 9456, checked in by swagner, 8 years ago

Updated copyright year and added some missing license headers (#1889)

File size: 3.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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.Text;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Encodings.IntegerVectorEncoding;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Encodings.ScheduleEncoding.PermutationWithRepetition {
29  [Item("PermutationWithRepetitionEncoding", "Represents a encoding for a standard JobShop Scheduling Problem.")]
30  [StorableClass]
31  public class PWREncoding : Item, IScheduleEncoding {
32
33    [Storable]
34    public IntegerVector PermutationWithRepetition { get; set; }
35
36    [StorableConstructor]
37    protected PWREncoding(bool deserializing) : base(deserializing) { }
38    protected PWREncoding(PWREncoding original, Cloner cloner)
39      : base(original, cloner) {
40      this.PermutationWithRepetition = cloner.Clone(original.PermutationWithRepetition);
41    }
42    public PWREncoding()
43      : base() {
44      PermutationWithRepetition = new IntegerVector();
45    }
46
47    public override IDeepCloneable Clone(Cloner cloner) {
48      return new PWREncoding(this, cloner);
49    }
50
51    public PWREncoding(int nrOfJobs, int nrOfResources, IRandom random)
52      : base() {
53      PermutationWithRepetition = new IntegerVector(nrOfJobs * nrOfResources);
54      int[] lookUpTable = new int[nrOfJobs];
55
56      for (int i = 0; i < PermutationWithRepetition.Length; i++) {
57        int newValue = random.Next(nrOfJobs);
58        while (lookUpTable[newValue] >= nrOfResources)
59          newValue = random.Next(nrOfJobs);
60
61        PermutationWithRepetition[i] = newValue;
62
63        lookUpTable[newValue]++;
64      }
65    }
66
67    public override string ToString() {
68      StringBuilder sb = new StringBuilder();
69      sb.Append("[ ");
70      foreach (int i in PermutationWithRepetition) {
71        sb.Append(i + " ");
72      }
73      sb.Append("]");
74
75      return sb.ToString();
76    }
77
78    public override bool Equals(object obj) {
79      if (obj.GetType() == typeof(PWREncoding))
80        return AreEqual(this, obj as PWREncoding);
81      else
82        return base.Equals(obj);
83    }
84
85    public override int GetHashCode() {
86      if (PermutationWithRepetition.Length == 1)
87        return PermutationWithRepetition[0].GetHashCode();
88      if (PermutationWithRepetition.Length == 2)
89        return PermutationWithRepetition[0].GetHashCode() ^ PermutationWithRepetition[1].GetHashCode();
90      return 0;
91    }
92
93    private bool AreEqual(PWREncoding pWREncoding1, PWREncoding pWREncoding2) {
94      if (pWREncoding1.PermutationWithRepetition.Length != pWREncoding2.PermutationWithRepetition.Length)
95        return false;
96      for (int i = 0; i < pWREncoding1.PermutationWithRepetition.Length; i++) {
97        if (pWREncoding1.PermutationWithRepetition[i] != pWREncoding2.PermutationWithRepetition[i])
98          return false;
99      }
100      return true;
101    }
102  }
103}
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