47 lines
1.4 KiB
C#
47 lines
1.4 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Linq;
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namespace Emby.Server.Implementations.Data
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{
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/// <summary>
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/// Class TypeMapper.
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/// </summary>
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public class TypeMapper
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{
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/// <summary>
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/// This holds all the types in the running assemblies
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/// so that we can de-serialize properly when we don't have strong types.
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/// </summary>
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private readonly ConcurrentDictionary<string, Type?> _typeMap = new ConcurrentDictionary<string, Type?>();
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/// <summary>
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/// Gets the type.
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/// </summary>
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/// <param name="typeName">Name of the type.</param>
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/// <returns>Type.</returns>
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/// <exception cref="ArgumentNullException"><c>typeName</c> is null.</exception>
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public Type? GetType(string typeName)
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{
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if (string.IsNullOrEmpty(typeName))
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{
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throw new ArgumentNullException(nameof(typeName));
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}
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return _typeMap.GetOrAdd(typeName, LookupType);
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}
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/// <summary>
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/// Lookups the type.
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/// </summary>
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/// <param name="typeName">Name of the type.</param>
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/// <returns>Type.</returns>
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private Type? LookupType(string typeName)
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{
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return AppDomain.CurrentDomain.GetAssemblies()
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.Select(a => a.GetType(typeName))
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.FirstOrDefault(t => t != null);
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}
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}
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}
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