source: trunk/sources/HeuristicLab.Encodings.ScheduleEncoding/3.3/ScheduleEncoding/DirectScheduleRandomCreator.cs @ 12012

Last change on this file since 12012 was 12012, checked in by ascheibe, 6 years ago

#2212 merged r12008, r12009, r12010 back into trunk

File size: 4.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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.ScheduleEncoding.PermutationWithRepetition;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30
31
32namespace HeuristicLab.Encodings.ScheduleEncoding {
33  [Item("DirectScheduleRandomCreator", "Creator class used to create schedule encoding objects.")]
34  [StorableClass]
35  public class DirectScheduleRandomCreator : ScheduleCreator, IStochasticOperator {
36
37    public ILookupParameter<IRandom> RandomParameter {
38      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
39    }
40    public IValueLookupParameter<IntValue> JobsParameter {
41      get { return (IValueLookupParameter<IntValue>)Parameters["Jobs"]; }
42    }
43    public IValueLookupParameter<IntValue> ResourcesParameter {
44      get { return (IValueLookupParameter<IntValue>)Parameters["Resources"]; }
45    }
46    public ILookupParameter<ItemList<Job>> JobDataParameter {
47      get { return (LookupParameter<ItemList<Job>>)Parameters["JobData"]; }
48    }
49
50
51    [StorableConstructor]
52    protected DirectScheduleRandomCreator(bool deserializing) : base(deserializing) { }
53    protected DirectScheduleRandomCreator(DirectScheduleRandomCreator original, Cloner cloner)
54      : base(original, cloner) {
55    }
56    public override IDeepCloneable Clone(Cloner cloner) {
57      return new DirectScheduleRandomCreator(this, cloner);
58    }
59    public DirectScheduleRandomCreator()
60      : base() {
61      Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator."));
62      Parameters.Add(new ValueLookupParameter<IntValue>("Jobs", "The number of jobs handled in this problem instance."));
63      Parameters.Add(new ValueLookupParameter<IntValue>("Resources", "The number of resources used in this problem instance."));
64      Parameters.Add(new LookupParameter<ItemList<Job>>("JobData", "Job data taken from the JSSP - Instance."));
65      ScheduleEncodingParameter.ActualName = "Schedule";
66    }
67
68
69    public static Schedule Apply(int jobs, int resources, PWREncoding pwr, ItemList<Job> jobData) {
70      var resultingSchedule = new Schedule(jobData[0].Tasks.Count);
71      foreach (int jobNr in pwr.PermutationWithRepetition) {
72        int i = 0;
73        while (jobData[jobNr].Tasks[i].IsScheduled) i++;
74        Task currentTask = jobData[jobNr].Tasks[i];
75        double startTime = GTAlgorithmUtils.ComputeEarliestStartTime(currentTask, resultingSchedule);
76        currentTask.IsScheduled = true;
77        resultingSchedule.ScheduleTask(currentTask.ResourceNr, startTime, currentTask.Duration, currentTask.JobNr);
78      }
79      return resultingSchedule;
80    }
81
82
83
84    protected override IScheduleEncoding CreateSolution() {
85      try {
86        var jobData = (ItemList<Job>)JobDataParameter.ActualValue.Clone();
87        return Apply(JobsParameter.ActualValue.Value,
88          ResourcesParameter.ActualValue.Value,
89          new PWREncoding(JobsParameter.ActualValue.Value, ResourcesParameter.ActualValue.Value, RandomParameter.ActualValue),
90          jobData);
91      } catch {
92        throw new Exception("ScheduleRandomCreator needs JobData parameter from a JSSP-Instance to create Schedule-Instances!");
93      }
94    }
95  }
96}
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