source: trunk/sources/HeuristicLab.Common/3.3/Content/ContentManager.cs @ 15583

Last change on this file since 15583 was 15583, checked in by swagner, 3 years ago

#2640: Updated year of copyrights in license headers

File size: 3.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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;
23
24namespace HeuristicLab.Common {
25  public abstract class ContentManager {
26    private static ContentManager instance;
27
28    public static void Initialize(ContentManager manager) {
29      if (manager == null) throw new ArgumentNullException();
30      if (ContentManager.instance != null) throw new InvalidOperationException("ContentManager has already been initialized.");
31      ContentManager.instance = manager;
32    }
33
34    protected ContentManager() { }
35
36    public static IStorableContent Load(string filename) {
37      if (instance == null) throw new InvalidOperationException("ContentManager is not initialized.");
38      IStorableContent content = instance.LoadContent(filename);
39      content.Filename = filename;
40      return content;
41    }
42    public static void LoadAsync(string filename, Action<IStorableContent, Exception> loadingCompletedCallback) {
43      if (instance == null) throw new InvalidOperationException("ContentManager is not initialized.");
44      var func = new Func<string, IStorableContent>(instance.LoadContent);
45      func.BeginInvoke(filename, delegate(IAsyncResult result) {
46        Exception error = null;
47        IStorableContent content = null;
48        try {
49          content = func.EndInvoke(result);
50          content.Filename = filename;
51        }
52        catch (Exception ex) {
53          error = ex;
54        }
55        loadingCompletedCallback(content, error);
56      }, null);
57    }
58    protected abstract IStorableContent LoadContent(string filename);
59
60    public static void Save(IStorableContent content, string filename, bool compressed) {
61      if (instance == null) throw new InvalidOperationException("ContentManager is not initialized.");
62      instance.SaveContent(content, filename, compressed);
63      content.Filename = filename;
64    }
65    public static void SaveAsync(IStorableContent content, string filename, bool compressed, Action<IStorableContent, Exception> savingCompletedCallback) {
66      if (instance == null) throw new InvalidOperationException("ContentManager is not initialized.");
67      var action = new Action<IStorableContent, string, bool>(instance.SaveContent);
68      action.BeginInvoke(content, filename, compressed, delegate(IAsyncResult result) {
69        Exception error = null;
70        try {
71          action.EndInvoke(result);
72          content.Filename = filename;
73        }
74        catch (Exception ex) {
75          error = ex;
76        }
77        savingCompletedCallback(content, error);
78      }, null);
79
80    }
81    protected abstract void SaveContent(IStorableContent content, string filename, bool compressed);
82  }
83}
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