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source: trunk/sources/HeuristicLab.Persistence/3.3/Default/CompositeSerializers/HashSetSerializer.cs @ 7259

Last change on this file since 7259 was 7259, checked in by swagner, 12 years ago

Updated year of copyrights to 2012 (#1716)

File size: 2.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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;
24using System.Collections.Generic;
25using System.Linq;
26using System.Reflection;
27using HeuristicLab.Persistence.Core;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29using HeuristicLab.Persistence.Interfaces;
30
31namespace HeuristicLab.Persistence.Default.CompositeSerializers {
32
33  [StorableClass]
34  internal sealed class HashSetSerializer : ICompositeSerializer {
35
36    [StorableConstructor]
37    private HashSetSerializer(bool deserializing) { }
38    public HashSetSerializer() { }
39
40    public int Priority {
41      get { return 250; }
42    }
43
44    public bool CanSerialize(Type type) {
45      return type.IsGenericType && type.GetGenericTypeDefinition() == typeof(HashSet<>);
46    }
47
48    public string JustifyRejection(Type type) {
49      return "Type is not a generic HashSet<>";
50    }
51
52    public IEnumerable<Tag> CreateMetaInfo(object o) {
53      yield return new Tag("Comparer", o.GetType().GetProperty("Comparer").GetValue(o, null));
54    }
55
56    public IEnumerable<Tag> Decompose(object obj) {
57      foreach (object o in (IEnumerable)obj) {
58        yield return new Tag(o);
59      }
60    }
61
62    public object CreateInstance(Type type, IEnumerable<Tag> metaInfo) {
63      return Activator.CreateInstance(type, metaInfo.First().Value);
64    }
65
66    public void Populate(object instance, IEnumerable<Tag> tags, Type type) {
67      MethodInfo addMethod = type.GetMethod("Add");
68      try {
69        foreach (var tag in tags)
70          addMethod.Invoke(instance, new[] { tag.Value });
71      } catch (Exception e) {
72        throw new PersistenceException("Exception caught while trying to populate enumerable.", e);
73      }
74    }
75
76    public object HashSet { get; set; }
77  }
78}
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