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comparison Implab.ServiceHost/Unity/InjectionValueBuilder.cs @ 274:22629bf26121 v3

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Unity xml configuration, alpha2
author cin
date Fri, 27 Apr 2018 04:47:52 +0300
parents
children 963b17c275be
comparison
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273:79110a16cab7 274:22629bf26121
1 using System;
2 using System.ComponentModel;
3 using System.Xml.Serialization;
4 using Unity.Injection;
5
6 namespace Implab.ServiceHost.Unity {
7
8 public class InjectionValueBuilder {
9
10 readonly TypeResolver m_resolver;
11
12 public Type DefaultType { get; private set; }
13
14 public Type ValueType { get; set; }
15
16 public object Value { get; set; }
17
18 public InjectionParameterValue Injection {
19 get {
20 if (Value != null)
21 return InjectionParameterValue.ToParameter(Value);
22
23 return new InjectionParameter(ValueType, null);
24 }
25 }
26
27 internal InjectionValueBuilder(TypeResolver resolver, Type acceptsType) {
28 m_resolver = resolver;
29 DefaultType = acceptsType;
30 }
31
32 public Type ResolveType(string typeSpec) {
33 if (string.IsNullOrEmpty(typeSpec)) {
34 if (DefaultType == null)
35 throw new Exception("The type must be specified");
36 return DefaultType;
37 }
38 return m_resolver.Resolve(typeSpec);
39 }
40
41 public void Visit(ITextValue value) {
42 ValueType = ResolveType(value.TypeName);
43
44 Value = string.IsNullOrEmpty(value.Value) ?
45 Safe.CreateDefaultValue(ValueType) :
46 TypeDescriptor.GetConverter(ValueType).ConvertFromString(value.Value);
47 }
48
49 public void Visit(ISerializedValue value) {
50 ValueType = ResolveType(value.TypeName);
51
52 var serializer = new XmlSerializer(ValueType);
53
54 using (var reader = value.GetReader())
55 Value = new InjectionParameter(ValueType, serializer.Deserialize(reader));
56 }
57
58 public void Visit(IDependencyReference value) {
59 ValueType = ResolveType(value.TypeName);
60 Value = new ResolvedParameter(ValueType, value.DependencyName);
61 }
62
63 }
64 }