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source: branches/3.0/sources/HeuristicLab.SequentialEngine/SequentialEngine.cs @ 14581

Last change on this file since 14581 was 2, checked in by swagner, 17 years ago

Added HeuristicLab 3.0 sources from former SVN repository at revision 52

File size: 2.5 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 System.Threading;
27
28namespace HeuristicLab.SequentialEngine {
29  public class SequentialEngine : EngineBase, IEditable {
30    private IOperator currentOperator;
31
32    public override IView CreateView() {
33      return new SequentialEngineEditor(this);
34    }
35    public virtual IEditor CreateEditor() {
36      return new SequentialEngineEditor(this);
37    }
38
39    public override void Abort() {
40      base.Abort();
41      if (currentOperator != null)
42        currentOperator.Abort();
43    }
44
45    protected override void ProcessNextOperation() {
46      IOperation operation = myExecutionStack.Pop();
47      if (operation is AtomicOperation) {
48        AtomicOperation atomicOperation = (AtomicOperation)operation;
49        IOperation next = null;
50        try {
51          currentOperator = atomicOperation.Operator;
52          next = atomicOperation.Operator.Execute(atomicOperation.Scope);
53        }
54        catch (Exception ex) {
55          // push operation on stack again
56          myExecutionStack.Push(atomicOperation);
57          Abort();
58          ThreadPool.QueueUserWorkItem(delegate(object state) { OnExceptionOccurred(ex);});
59        }
60        if (next != null)
61          myExecutionStack.Push(next);
62        OnOperationExecuted(atomicOperation);
63        if (atomicOperation.Operator.Breakpoint) Abort();
64      } else if (operation is CompositeOperation) {
65        CompositeOperation compositeOperation = (CompositeOperation)operation;
66        for (int i = compositeOperation.Operations.Count - 1; i >= 0; i--)
67          myExecutionStack.Push(compositeOperation.Operations[i]);
68      }
69    }
70  }
71}
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