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source: trunk/sources/HeuristicLab.Operators/ConditionalBranch.cs @ 48

Last change on this file since 48 was 2, checked in by swagner, 16 years ago

Added HeuristicLab 3.0 sources from former SVN repository at revision 52

File size: 2.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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 System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27
28namespace HeuristicLab.Operators {
29  public class ConditionalBranch : OperatorBase {
30    public override string Description {
31      get { return @"ConditionalBranch expects to have 1 or 2 sub operators.\r\n
32It will return the 1st sub operator if ""Condition"" is true and the 2nd sub operator if ""Condition"" equals to false.\r\n
33\r\nIn case a 2nd sub operator does not exist and ""Condition"" would equal to false, Conditional Branch will not return a new operation."; }
34    }
35
36    public ConditionalBranch()
37      : base() {
38      AddVariableInfo(new VariableInfo("Condition", "A boolean variable that decides the branch", typeof(BoolData), VariableKind.In));
39    }
40
41    public override IOperation Apply(IScope scope) {
42      BoolData resultData = GetVariableValue<BoolData>("Condition", scope, true);
43      bool result = resultData.Data;
44
45      if ((result) && (SubOperators.Count > 0) && (SubOperators[0] != null))
46        return new AtomicOperation(SubOperators[0], scope);
47      else if ((!result) && (SubOperators.Count > 1) && (SubOperators[1] != null))
48        return new AtomicOperation(SubOperators[1], scope);
49      return null;
50    }
51  }
52}
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