source: trunk/sources/HeuristicLab.Common/3.3/Content/StorableContent.cs @ 3412

Last change on this file since 3412 was 3412, checked in by mkommend, 11 years ago

adapted contents according to discussions with swa (ticket #980)

File size: 3.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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.Linq;
25using System.Text;
26using System.Threading;
27using System.Reflection;
28
29namespace HeuristicLab.Common {
30  public abstract class StorableContent : Content, IStorableContent {
31    public StorableContent()
32      : base() {
33      this.filename = string.Empty;
34    }
35    public StorableContent(string filename)
36      : base() {
37      this.Filename = filename;
38    }
39
40    private string filename;
41    public string Filename {
42      get { return this.filename; }
43      set {
44        if (this.filename != value) {
45          this.filename = value;
46          this.OnFilenameChanged();
47        }
48      }
49    }
50
51    protected abstract void Save();
52    void IStorableContent.Save() {
53      this.OnSaveOperationStarted();
54      Exception ex = null;
55      try {
56        this.Save();
57      }
58      catch (Exception e) {
59        ex = e;
60      }
61      this.OnSaveOperationFinished(ex);
62    }
63    public void Save(string filename) {
64      this.Filename = filename;
65      ((IStorableContent)this).Save();
66    }
67
68    protected virtual void SaveAsnychronous() {
69      ThreadPool.QueueUserWorkItem(
70        new WaitCallback(delegate(object arg) {
71        this.Save();
72      })
73      );
74    }
75    void IStorableContent.SaveAsynchronous() {
76      this.OnSaveOperationStarted();
77      this.SaveAsnychronous();
78      this.OnSaveOperationFinished(null);
79    }
80    public void SaveAsynchronous(string filename) {
81      this.Filename = filename;
82      ((IStorableContent)this).SaveAsynchronous();
83    }
84
85    public event EventHandler FilenameChanged;
86    protected virtual void OnFilenameChanged() {
87      EventHandler handler = FilenameChanged;
88      if (handler != null) handler(this, EventArgs.Empty);
89    }
90    public event EventHandler SaveOperationStarted;
91    protected virtual void OnSaveOperationStarted() {
92      EventHandler handler = SaveOperationStarted;
93      if (handler != null) handler(this, EventArgs.Empty);
94    }
95    public event EventHandler<EventArgs<Exception>> SaveOperationFinished;
96    protected virtual void OnSaveOperationFinished(Exception ex) {
97      EventHandler<EventArgs<Exception>> handler = SaveOperationFinished;
98      if (handler != null) handler(this, new EventArgs<Exception>(ex));
99    }
100  }
101}
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