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source: trunk/sources/HeuristicLab.Scheduling.JSSP/OperationUpdater.cs @ 271

Last change on this file since 271 was 269, checked in by mkofler, 16 years ago

Fixed small bug in OperationUpdater (scheduled operation was not deleted from all predecessor lists)

File size: 2.3 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;
27using System.Collections;
28
29namespace HeuristicLab.Scheduling.JSSP {
30  public class OperationUpdater : OperatorBase {
31    public override string Description {
32      get { return @"TODO\r\nOperator description still missing ..."; }
33    }
34
35    public OperationUpdater()
36      : base() {
37      AddVariableInfo(new VariableInfo("Operation", "Scheduled operation and unscheduled operation which shall be updated.", typeof(Operation), VariableKind.In | VariableKind.Out));
38    }
39
40    public override IOperation Apply(IScope scope) {
41      Operation scheduledOp = GetVariableValue<Operation>("Operation", scope, false);
42      for(int i = 0; i < scope.SubScopes.Count; i++) {
43        Operation op = GetVariableValue<Operation>("Operation", scope.SubScopes[i], false);
44        if((op.Job == scheduledOp.Job) && (op.Predecessors != null)) {
45          int index = -1;
46          for(int j = 0; j < op.Predecessors.Count; j++) {
47            if(((IntData)op.Predecessors[j]).Data == scheduledOp.OperationIndex) {
48              index = j;
49            }
50          }
51          if(index != -1) {
52            op.Predecessors.RemoveAt(index); // remove scheduled op from predecessor list
53            op.Start = scheduledOp.Start + scheduledOp.Duration; // new earliest start date
54          }
55        }
56      }
57      return null;
58    }
59  }
60}
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