source: branches/RefactorPluginInfrastructure-2522/HeuristicLab.PluginInfrastructure/3.3/AssemblyExtensions.cs @ 13369

Last change on this file since 13369 was 13369, checked in by gkronber, 7 years ago

#2522: improvements to AboutDialog and PluginInformationDialog

File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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.Reflection;
24
25namespace HeuristicLab.PluginInfrastructure {
26  public static class AssemblyExtensions {
27    //Based on the code from http://stackoverflow.com/a/7156425
28    public static string GetCustomAttributeValue<T>(this Assembly assembly, string propertyName)
29       where T : Attribute {
30      if (assembly == null || string.IsNullOrEmpty(propertyName)) {
31        throw new ArgumentException("Arguments are not allowed to be null.");
32      }
33
34      object[] attributes = assembly.GetCustomAttributes(typeof(T), false);
35      if (attributes.Length == 0) {
36        throw new InvalidOperationException(string.Format("No attributes of type {0} found in assembly {1}", typeof(T).Name,
37          assembly.FullName));
38      }
39
40      var attribute = (T)attributes[0];
41      var propertyInfo = attribute.GetType().GetProperty(propertyName);
42      if (propertyInfo == null) {
43        throw new InvalidOperationException(string.Format("No property {0} found in attribute {1}, assembly: {2}",
44          propertyName, typeof(T).Name, assembly.FullName));
45      }
46
47      var value = propertyInfo.GetValue(attribute, null);
48      return value.ToString();
49    }
50
51    public static string GetFileVersion(this Assembly assembly) {
52      return GetCustomAttributeValue<AssemblyFileVersionAttribute>(assembly, "Version");
53    }
54    public static string GetCopyright(this Assembly assembly) {
55      return GetCustomAttributeValue<AssemblyCopyrightAttribute>(assembly, "Copyright");
56    }
57
58    public static string GetProduct(this Assembly assembly) {
59      return GetCustomAttributeValue<AssemblyProductAttribute>(assembly, "Product");
60    }
61
62  }
63}
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