1 | #region License Information
|
---|
2 | /* HeuristicLab
|
---|
3 | * Copyright (C) 2002-2016 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 |
|
---|
22 | using System;
|
---|
23 | using System.Threading;
|
---|
24 | using HeuristicLab.Common;
|
---|
25 | using HeuristicLab.Core;
|
---|
26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
|
---|
27 |
|
---|
28 | namespace HeuristicLab.Optimization {
|
---|
29 | /// <summary>
|
---|
30 | /// A base class for heuristic optimization algorithms.
|
---|
31 | /// </summary>
|
---|
32 | [Item("Heuristic Optimization Algorithm", "A base class for heuristic optimization algorithms.")]
|
---|
33 | [StorableClass]
|
---|
34 | public abstract class HeuristicOptimizationAlgorithm : Algorithm {
|
---|
35 | public new IHeuristicOptimizationProblem Problem {
|
---|
36 | get { return (IHeuristicOptimizationProblem)base.Problem; }
|
---|
37 | set { base.Problem = value; }
|
---|
38 | }
|
---|
39 |
|
---|
40 | [Storable]
|
---|
41 | private TimeSpan executionTime;
|
---|
42 | private DateTime startDate;
|
---|
43 | public override TimeSpan ExecutionTime {
|
---|
44 | get { return executionTime + (ExecutionState == ExecutionState.Started ? DateTime.UtcNow - startDate : TimeSpan.Zero); }
|
---|
45 | }
|
---|
46 |
|
---|
47 | protected HeuristicOptimizationAlgorithm() : base() {
|
---|
48 | executionTime = TimeSpan.Zero;
|
---|
49 | }
|
---|
50 | protected HeuristicOptimizationAlgorithm(string name) : base(name) {
|
---|
51 | executionTime = TimeSpan.Zero;
|
---|
52 | }
|
---|
53 | protected HeuristicOptimizationAlgorithm(string name, ParameterCollection parameters) : base(name, parameters) {
|
---|
54 | executionTime = TimeSpan.Zero;
|
---|
55 | }
|
---|
56 | protected HeuristicOptimizationAlgorithm(string name, string description) : base(name, description) {
|
---|
57 | executionTime = TimeSpan.Zero;
|
---|
58 | }
|
---|
59 | protected HeuristicOptimizationAlgorithm(string name, string description, ParameterCollection parameters) : base(name, description, parameters) {
|
---|
60 | executionTime = TimeSpan.Zero;
|
---|
61 | }
|
---|
62 |
|
---|
63 | [StorableConstructor]
|
---|
64 | protected HeuristicOptimizationAlgorithm(bool deserializing) : base(deserializing) { }
|
---|
65 | protected HeuristicOptimizationAlgorithm(HeuristicOptimizationAlgorithm original, Cloner cloner)
|
---|
66 | : base(original, cloner) {
|
---|
67 | executionTime = original.executionTime;
|
---|
68 | }
|
---|
69 |
|
---|
70 | public override void Prepare() {
|
---|
71 | executionTime = TimeSpan.Zero;
|
---|
72 | base.Prepare();
|
---|
73 | }
|
---|
74 |
|
---|
75 | public override void Start(CancellationToken cancellationToken) {
|
---|
76 | startDate = DateTime.UtcNow;
|
---|
77 | base.Start(cancellationToken);
|
---|
78 | }
|
---|
79 |
|
---|
80 | #region Events
|
---|
81 | protected override void DeregisterProblemEvents() {
|
---|
82 | Problem.SolutionCreatorChanged -= new EventHandler(Problem_SolutionCreatorChanged);
|
---|
83 | Problem.EvaluatorChanged -= new EventHandler(Problem_EvaluatorChanged);
|
---|
84 | base.DeregisterProblemEvents();
|
---|
85 | }
|
---|
86 | protected override void RegisterProblemEvents() {
|
---|
87 | base.RegisterProblemEvents();
|
---|
88 | Problem.SolutionCreatorChanged += new EventHandler(Problem_SolutionCreatorChanged);
|
---|
89 | Problem.EvaluatorChanged += new EventHandler(Problem_EvaluatorChanged);
|
---|
90 | }
|
---|
91 |
|
---|
92 | protected virtual void Problem_SolutionCreatorChanged(object sender, EventArgs e) { }
|
---|
93 | protected virtual void Problem_EvaluatorChanged(object sender, EventArgs e) { }
|
---|
94 | #endregion
|
---|
95 |
|
---|
96 | protected override void OnPaused() {
|
---|
97 | var elapsed = DateTime.UtcNow - startDate;
|
---|
98 | executionTime += elapsed;
|
---|
99 | base.OnPaused();
|
---|
100 | }
|
---|
101 |
|
---|
102 | protected override void OnStopped() {
|
---|
103 | if (ExecutionState == ExecutionState.Started) {
|
---|
104 | var elapsed = DateTime.UtcNow - startDate;
|
---|
105 | executionTime += elapsed;
|
---|
106 | }
|
---|
107 | base.OnStopped();
|
---|
108 | }
|
---|
109 | }
|
---|
110 | }
|
---|