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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Xml;
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using System.Xml.Serialization;
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using Implab.Components;
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namespace Implab.ServiceHost.Unity {
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public class ConfigurationSchema {
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public static ConfigurationSchema Default { get; private set; } = CreateDefault();
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readonly Dictionary<Tuple<string,string>, LazyAndWeak<XmlSerializer>> m_mappings = new Dictionary<Tuple<string, string>, LazyAndWeak<XmlSerializer>>();
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public void DefineMapping(string name, string ns, Type type) {
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Safe.ArgumentNotEmpty(name, nameof(name));
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Safe.ArgumentNotNull(type, nameof(type));
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ns = ns ?? string.Empty;
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m_mappings[Tuple.Create(name, ns)] = new LazyAndWeak<XmlSerializer>(() => new XmlSerializer(type), true);
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}
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public void DefineMapping<T>() {
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var xmlRoot = typeof(T).GetCustomAttribute<XmlRootAttribute>();
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var ns = xmlRoot?.Namespace;
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var root = xmlRoot?.ElementName ?? typeof(T).Name;
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DefineMapping(root, ns, typeof(T));
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}
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public T Deserialize<T>(XmlReader reader) {
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reader.MoveToContent();
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var name = reader.Name;
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var ns = reader.NamespaceURI;
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return (T)m_mappings[Tuple.Create(name, ns)].Value.Deserialize(reader);
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}
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static ConfigurationSchema CreateDefault() {
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var schema = new ConfigurationSchema();
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schema.DefineMapping<RegisterElement>();
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schema.DefineMapping<IncludeElement>();
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schema.DefineMapping<AssemblyElement>();
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schema.DefineMapping<NamespaceElement>();
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return schema;
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}
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}
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}
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