source: branches/2520_PersistenceReintegration/HeuristicLab.Operators/3.3/ConditionalBranch.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 2 years ago

#2520: updated year of copyrights

File size: 3.3 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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.Parameters;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27
28namespace HeuristicLab.Operators {
29  /// <summary>
30  /// A branch of two operators whose executions depend on a condition.
31  /// </summary>
32  [Item("ConditionalBranch", "A branch of two operators whose executions depend on a boolean condition. If the boolean condition is not present, the false branch is executed.")]
33  [StorableClass]
34  public class ConditionalBranch : SingleSuccessorOperator {
35    public LookupParameter<BoolValue> ConditionParameter {
36      get { return (LookupParameter<BoolValue>)Parameters["Condition"]; }
37    }
38    protected OperatorParameter TrueBranchParameter {
39      get { return (OperatorParameter)Parameters["TrueBranch"]; }
40    }
41    protected OperatorParameter FalseBranchParameter {
42      get { return (OperatorParameter)Parameters["FalseBranch"]; }
43    }
44    public IOperator TrueBranch {
45      get { return TrueBranchParameter.Value; }
46      set { TrueBranchParameter.Value = value; }
47    }
48    public IOperator FalseBranch {
49      get { return FalseBranchParameter.Value; }
50      set { FalseBranchParameter.Value = value; }
51    }
52
53    [StorableConstructor]
54    protected ConditionalBranch(bool deserializing) : base(deserializing) { }
55    protected ConditionalBranch(ConditionalBranch original, Cloner cloner)
56      : base(original, cloner) {
57    }
58    public ConditionalBranch()
59      : base() {
60      Parameters.Add(new LookupParameter<BoolValue>("Condition", "A boolean variable which defines which branch is executed."));
61      Parameters.Add(new OperatorParameter("TrueBranch", "The operator which is executed if the condition is true."));
62      Parameters.Add(new OperatorParameter("FalseBranch", "The operator which is executed if the condition is false."));
63    }
64
65    public override IDeepCloneable Clone(Cloner cloner) {
66      return new ConditionalBranch(this, cloner);
67    }
68
69    public override IOperation Apply() {
70      OperationCollection next = new OperationCollection(base.Apply());
71      if (ConditionParameter.ActualValue != null && ConditionParameter.ActualValue.Value) {
72        if (TrueBranch != null) next.Insert(0, ExecutionContext.CreateOperation(TrueBranch));
73      } else {
74        if (FalseBranch != null) next.Insert(0, ExecutionContext.CreateOperation(FalseBranch));
75      }
76      return next;
77    }
78  }
79}
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