1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
//-----------------------------------------------------------------------
// <copyright file="MessagePart.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOAuth.Messaging.Reflection {
using System;
using System.Collections.Generic;
using System.Net.Security;
using System.Reflection;
internal class MessagePart {
private static readonly Dictionary<Type, ValueMapping> converters = new Dictionary<Type, ValueMapping>();
private ValueMapping converter;
private PropertyInfo property;
private FieldInfo field;
static MessagePart() {
Map<Uri>(uri => uri.AbsoluteUri, str => new Uri(str));
}
internal MessagePart(MemberInfo member, MessagePartAttribute attribute) {
if (member == null) {
throw new ArgumentNullException("member");
}
this.field = member as FieldInfo;
this.property = member as PropertyInfo;
if (this.field == null && this.property == null) {
throw new ArgumentOutOfRangeException("member"); // TODO: add descriptive message
}
if (attribute == null) {
throw new ArgumentNullException("attribute");
}
this.Name = attribute.Name ?? member.Name;
this.Signed = attribute.Signed;
this.IsRequired = !attribute.Optional;
if (!converters.TryGetValue(member.DeclaringType, out this.converter)) {
Type memberDeclaredType = (this.field != null) ? this.field.FieldType : this.property.PropertyType;
this.converter = new ValueMapping(
obj => obj != null ? obj.ToString() : null,
str => str != null ? Convert.ChangeType(str, memberDeclaredType) : null);
}
}
internal string Name { get; set; }
internal ProtectionLevel Signed { get; set; }
internal bool IsRequired { get; set; }
internal object ToValue(string value) {
return this.converter.StringToValue(value);
}
internal string ToString(object value) {
return this.converter.ValueToString(value);
}
internal void SetValue(IProtocolMessage message, string value) {
if (this.property != null) {
this.property.SetValue(message, this.ToValue(value), null);
} else {
this.field.SetValue(message, this.ToValue(value));
}
}
internal string GetValue(IProtocolMessage message) {
if (this.property != null) {
return this.ToString(this.property.GetValue(message, null));
} else {
return this.ToString(this.field.GetValue(message));
}
}
private static void Map<T>(Func<T, string> toString, Func<string, T> toValue) where T : class {
converters.Add(
typeof(T),
new ValueMapping(
obj => obj != null ? toString((T)obj) : null,
str => str != null ? toValue(str) : null));
}
}
}
|
