source: branches/TerminationCriteria/HeuristicLab.Termination/3.3/TerminationOperator.cs @ 12444

Last change on this file since 12444 was 12444, checked in by pfleck, 4 years ago

#2027

  • Removed ISingleValueTerminator and used ThresholdTerminator for the View instead.
  • Added missing description in SingleObjectiveQualityTerminator.
  • Added ITerminationBasedOperator which contains the terminate-flag.
File size: 4.0 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 HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Operators;
26using HeuristicLab.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29namespace HeuristicLab.Termination {
30  [Item("TerminationOperator", "An operator which either calls the terminate- or the continue branch.")]
31  [StorableClass]
32  public sealed class TerminationOperator : InstrumentedOperator, ITerminationBasedOperator {
33    public ILookupParameter<ITerminator> TerminationParameter {
34      get { return (ILookupParameter<ITerminator>)Parameters["Termination"]; }
35    }
36    public ILookupParameter<BoolValue> TerminateParameter {
37      get { return (ILookupParameter<BoolValue>)Parameters["Terminate"]; }
38    }
39    private OperatorParameter ContinueBranchParameter {
40      get { return (OperatorParameter)Parameters["ContinueBranch"]; }
41    }
42    private OperatorParameter TerminateBranchParameter {
43      get { return (OperatorParameter)Parameters["TerminateBranch"]; }
44    }
45
46    public IOperator ContinueBranch {
47      get { return ContinueBranchParameter.Value; }
48      set { ContinueBranchParameter.Value = value; }
49    }
50    public IOperator TerminateBranch {
51      get { return TerminateBranchParameter.Value; }
52      set { TerminateBranchParameter.Value = value; }
53    }
54
55    [StorableConstructor]
56    private TerminationOperator(bool deserializing) : base(deserializing) { }
57    private TerminationOperator(TerminationOperator original, Cloner cloner)
58      : base(original, cloner) {
59    }
60    public override IDeepCloneable Clone(Cloner cloner) {
61      return new TerminationOperator(this, cloner);
62    }
63
64    public TerminationOperator()
65      : base() {
66      Parameters.Add(new LookupParameter<ITerminator>("Termination", "The termination criteria which sould be checked."));
67      Parameters.Add(new LookupParameter<BoolValue>("Terminate", "The parameter which will be set to determine if execution should be terminated or schould continue."));
68      Parameters.Add(new OperatorParameter("ContinueBranch", "The operator which is executed if no termination criteria has met."));
69      Parameters.Add(new OperatorParameter("TerminateBranch", "The operator which is executed if any termination criteria has met."));
70
71      var assigner = new Assigner() { Name = "Terminate = false" };
72      assigner.LeftSideParameter.ActualName = TerminateParameter.Name;
73      assigner.RightSideParameter.Value = new BoolValue(false);
74
75      var placeholder = new Placeholder() { Name = "Check termination criteria (Placeholder)" };
76      placeholder.OperatorParameter.ActualName = TerminationParameter.Name;
77
78      BeforeExecutionOperators.Add(assigner);
79      BeforeExecutionOperators.Add(placeholder);
80    }
81
82    public override IOperation InstrumentedApply() {
83      var next = new OperationCollection(base.InstrumentedApply());
84      if (TerminateParameter.ActualValue.Value) {
85        if (TerminateBranch != null) next.Insert(0, ExecutionContext.CreateOperation(TerminateBranch));
86      } else {
87        if (ContinueBranch != null) next.Insert(0, ExecutionContext.CreateOperation(ContinueBranch));
88      }
89      return next;
90    }
91  }
92}
Note: See TracBrowser for help on using the repository browser.