source: branches/2925_AutoDiffForDynamicalModels/HeuristicLab.Persistence/3.3/Default/CompositeSerializers/Storable/StorableMemberInfo.cs @ 16892

Last change on this file since 16892 was 16892, checked in by gkronber, 13 months ago

#2925 merged r16661:16890 from trunk to branch

File size: 3.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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;
24using System.Text;
25using HEAL.Attic;
26
27namespace HeuristicLab.Persistence.Default.CompositeSerializers.Storable {
28
29  internal sealed class StorableMemberInfo {
30    public MemberInfo MemberInfo { get; private set; }
31    public string DisentangledName { get; private set; }
32    public object DefaultValue { get; private set; }
33    public string FullyQualifiedMemberName {
34      get {
35        return new StringBuilder()
36          .Append(MemberInfo.ReflectedType.FullName)
37          .Append('.')
38          .Append(MemberInfo.Name)
39          .ToString();
40      }
41    }
42    public StorableMemberInfo(StorableAttribute attribute, MemberInfo memberInfo) {
43      DisentangledName = string.IsNullOrEmpty(attribute.OldName) ? attribute.Name : attribute.OldName;
44      DefaultValue = attribute.DefaultValue;
45      MemberInfo = memberInfo;
46      if (string.IsNullOrEmpty(attribute.OldName) && !attribute.AllowOneWay)
47        CheckPropertyAccess(memberInfo as PropertyInfo);
48    }
49    public StorableMemberInfo(MemberInfo memberInfo, bool allowOneWay) {
50      MemberInfo = memberInfo;
51      if (!allowOneWay)
52        CheckPropertyAccess(memberInfo as PropertyInfo);
53    }
54    private static void CheckPropertyAccess(PropertyInfo propertyInfo) {
55      if (propertyInfo == null)
56        return;
57      if (!propertyInfo.CanRead || !propertyInfo.CanWrite)
58        throw new PersistenceException("Properties must be readable and writable or explicity enable one way serialization.");
59    }
60    public void SetDisentangledName(string name) {
61      if (DisentangledName == null)
62        DisentangledName = name;
63    }
64    /// <summary>
65    /// Gets the type who first defined this property in the class hierarchy when the
66    /// property has subsequently been overridden but not shadowed with <code>new</code>.
67    /// </summary>
68    /// <returns>The properties base type.</returns>
69    public Type GetPropertyDeclaringBaseType() {
70      PropertyInfo pi = MemberInfo as PropertyInfo;
71      if (pi == null)
72        throw new PersistenceException("fields don't have a declaring base type, directly use FullyQualifiedMemberName instead");
73      if (pi.CanRead)
74        return pi.GetGetMethod(true).GetBaseDefinition().DeclaringType;
75      if (pi.CanWrite)
76        return pi.GetSetMethod(true).GetBaseDefinition().DeclaringType;
77      throw new InvalidOperationException("property has neigher a getter nor a setter.");
78    }
79  }
80}
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