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source: trunk/sources/HeuristicLab.Problems.Scheduling/3.3/Evaluators/MakespanEvaluator.cs @ 8882

Last change on this file since 8882 was 8882, checked in by abeham, 11 years ago

#1329:

  • Added JSSPData class to problem instances
  • Added problem instance provider for some ORLIB JSSP instances (abz, ft, la01-20)
  • Adapted JSSP to load and export jssp problems
  • Adapted JSSP problem view to derive from ProblemView
  • Added static methods to MakespanEvaluator and MeanTardinessEvaluator
  • Fixed a bug in PRVUniformOnePositionManipulator
File size: 2.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Encodings.ScheduleEncoding;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Problems.Scheduling {
30  [Item("Makespan Evaluator", "Represents an evaluator using the maximum makespan of a schedule.")]
31  [StorableClass]
32  public class MakespanEvaluator : SchedulingEvaluator {
33    [StorableConstructor]
34    protected MakespanEvaluator(bool deserializing) : base(deserializing) { }
35    protected MakespanEvaluator(MakespanEvaluator original, Cloner cloner)
36      : base(original, cloner) {
37    }
38    public override IDeepCloneable Clone(Cloner cloner) {
39      return new MakespanEvaluator(this, cloner);
40    }
41
42    public MakespanEvaluator() : base() { }
43
44    public static double GetMakespan(Schedule schedule) {
45      return schedule.Resources.Select(r => r.TotalDuration).Max();
46    }
47
48    protected override DoubleValue Evaluate(Schedule schedule) {
49      return new DoubleValue(GetMakespan(schedule));
50    }
51
52    public override IOperation Apply() {
53      return base.Apply();
54    }
55  }
56}
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