InjectionValueBuilder.cs
63 lines
| 1.9 KiB
| text/x-csharp
|
CSharpLexer
cin
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r274 | using System; | |
| using System.ComponentModel; | |||
| using System.Xml.Serialization; | |||
| using Unity.Injection; | |||
| namespace Implab.ServiceHost.Unity { | |||
| public class InjectionValueBuilder { | |||
| readonly TypeResolver m_resolver; | |||
| public Type DefaultType { get; private set; } | |||
| public Type ValueType { get; set; } | |||
| public object Value { get; set; } | |||
| public InjectionParameterValue Injection { | |||
| get { | |||
| if (Value != null) | |||
| return InjectionParameterValue.ToParameter(Value); | |||
| return new InjectionParameter(ValueType, null); | |||
| } | |||
| } | |||
| internal InjectionValueBuilder(TypeResolver resolver, Type acceptsType) { | |||
| m_resolver = resolver; | |||
| DefaultType = acceptsType; | |||
| } | |||
| public Type ResolveType(string typeSpec) { | |||
| if (string.IsNullOrEmpty(typeSpec)) { | |||
| if (DefaultType == null) | |||
| throw new Exception("The type must be specified"); | |||
| return DefaultType; | |||
| } | |||
| return m_resolver.Resolve(typeSpec); | |||
| } | |||
| public void Visit(ITextValue value) { | |||
| ValueType = ResolveType(value.TypeName); | |||
| Value = string.IsNullOrEmpty(value.Value) ? | |||
| Safe.CreateDefaultValue(ValueType) : | |||
| TypeDescriptor.GetConverter(ValueType).ConvertFromString(value.Value); | |||
| } | |||
| public void Visit(ISerializedValue value) { | |||
| ValueType = ResolveType(value.TypeName); | |||
| var serializer = new XmlSerializer(ValueType); | |||
| using (var reader = value.GetReader()) | |||
| Value = new InjectionParameter(ValueType, serializer.Deserialize(reader)); | |||
| } | |||
| public void Visit(IDependencyReference value) { | |||
| ValueType = ResolveType(value.TypeName); | |||
| Value = new ResolvedParameter(ValueType, value.DependencyName); | |||
| } | |||
| } | |||
| } |