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source: stable/HeuristicLab.DataPreprocessing/3.4/PreprocessingContext.cs @ 15231

Last change on this file since 15231 was 14572, checked in by gkronber, 8 years ago

#2683: merged r14332 from trunk to stable

File size: 5.7 KB
Line 
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
22using System;
23using System.Collections.Generic;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Optimization;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28using HeuristicLab.Problems.DataAnalysis;
29
30namespace HeuristicLab.DataPreprocessing {
31  [Item("PreprocessingContext", "PreprocessingContext")]
32  [StorableClass]
33  public class PreprocessingContext : NamedItem, IStorableContent {
34
35    public string Filename { get; set; }
36
37    [Storable]
38    public IFilteredPreprocessingData Data { get; private set; }
39
40    [Storable]
41    private IItem Source { get; set; }
42
43    public event EventHandler Reset;
44
45    #region Constructors
46    public PreprocessingContext(IDataAnalysisProblemData problemData, IItem source = null)
47      : base("Data Preprocessing") {
48      if (problemData == null) throw new ArgumentNullException("problemData");
49      Import(problemData, source);
50    }
51
52    [StorableConstructor]
53    protected PreprocessingContext(bool deserializing)
54      : base(deserializing) { }
55    protected PreprocessingContext(PreprocessingContext original, Cloner cloner)
56      : base(original, cloner) {
57      Source = cloner.Clone(original.Source);
58      Data = cloner.Clone(original.Data);
59    }
60    public override IDeepCloneable Clone(Cloner cloner) {
61      return new PreprocessingContext(this, cloner);
62    }
63    #endregion
64
65    #region Import
66    public void Import(IDataAnalysisProblemData problemData, IItem source = null) {
67      if (problemData == null) throw new ArgumentNullException("problemData");
68      if (source != null && ExtractProblemData(source) != problemData)
69        source = null; // ignore the source if the source's problem data is different
70      Source = source ?? problemData;
71      var namedSource = Source as INamedItem;
72      if (namedSource != null)
73        Name = "Preprocessing " + namedSource.Name;
74      Data = new FilteredPreprocessingData(new TransactionalPreprocessingData(problemData));
75      OnReset();
76      // Reset GUI:
77      // - OnContentChanged for PreprocessingView!
78      // event? task(async import)?
79    }
80    private IDataAnalysisProblemData ExtractProblemData(IItem source) {
81      var algorithm = source as Algorithm;
82      var problem = algorithm != null ? algorithm.Problem as IDataAnalysisProblem : source as IDataAnalysisProblem;
83      var problemData = problem != null ? problem.ProblemData : source as IDataAnalysisProblemData;
84      return problemData;
85    }
86    #endregion
87
88    #region Export
89    public bool CanExport {
90      get { return Source is IAlgorithm || Source is IDataAnalysisProblem || Source is IDataAnalysisProblemData; }
91    }
92    public IEnumerable<KeyValuePair<string, Func<IItem>>> GetSourceExportOptions() {
93      var algorithm = Source as IAlgorithm;
94      if (algorithm != null)
95        yield return new KeyValuePair<string, Func<IItem>>(
96          algorithm.GetType().GetPrettyName(),
97          () => ExportAlgorithm(algorithm));
98
99      var problem = algorithm != null ? algorithm.Problem as IDataAnalysisProblem : Source as IDataAnalysisProblem;
100      if (problem != null)
101        yield return new KeyValuePair<string, Func<IItem>>(
102          problem.GetType().GetPrettyName(),
103          () => ExportProblem(problem));
104
105      var problemData = problem != null ? problem.ProblemData : Source as IDataAnalysisProblemData;
106      if (problemData != null)
107        yield return new KeyValuePair<string, Func<IItem>>(
108          problemData.GetType().GetPrettyName(),
109          () => ExportProblemData(problemData));
110    }
111
112    private IAlgorithm ExportAlgorithm(IAlgorithm source) {
113      var preprocessedAlgorithm = (IAlgorithm)source.Clone();
114      preprocessedAlgorithm.Name = preprocessedAlgorithm.Name + "(Preprocessed)";
115      preprocessedAlgorithm.Runs.Clear();
116      var problem = (IDataAnalysisProblem)preprocessedAlgorithm.Problem;
117      problem.ProblemDataParameter.ActualValue = CreateNewProblemData();
118      return preprocessedAlgorithm;
119    }
120    private IDataAnalysisProblem ExportProblem(IDataAnalysisProblem source) {
121      var preprocessedProblem = (IDataAnalysisProblem)source.Clone();
122      preprocessedProblem.ProblemDataParameter.ActualValue = CreateNewProblemData();
123      return preprocessedProblem;
124    }
125    private IDataAnalysisProblemData ExportProblemData(IDataAnalysisProblemData source) {
126      return CreateNewProblemData();
127    }
128
129    public IDataAnalysisProblemData CreateNewProblemData() {
130      var creator = new ProblemDataCreator(this);
131      var oldProblemData = ExtractProblemData(Source);
132      var newProblemData = creator.CreateProblemData(oldProblemData);
133      newProblemData.Name = "Preprocessed " + oldProblemData.Name;
134      return newProblemData;
135    }
136    #endregion
137
138    protected virtual void OnReset() {
139      if (Reset != null)
140        Reset(this, EventArgs.Empty);
141    }
142  }
143}
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