52 lines
1.8 KiB
C#
52 lines
1.8 KiB
C#
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using System;
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using System.Collections.Concurrent;
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using System.Reflection;
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namespace JiShe.CollectBus.Analyzers.Shared;
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public static class SourceEntityAccessorFactory3
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{
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private static readonly ConcurrentDictionary<Type, object> _accessors = new();
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public static ISourceEntityAccessor<T> GetAccessor<T>()
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{
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return (ISourceEntityAccessor<T>)_accessors.GetOrAdd(typeof(T), t =>
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{
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// 获取泛型类型定义信息（如果是泛型类型）
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var isGeneric = t.IsGenericType;
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var genericTypeDef = isGeneric ? t.GetGenericTypeDefinition() : null;
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var arity = isGeneric ? genericTypeDef!.GetGenericArguments().Length : 0;
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// 构建访问器类名
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var typeName = isGeneric
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? $"{t.Namespace}.{genericTypeDef!.Name.Split('`')[0]}Accessor`{arity}"
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: $"{t.Namespace}.{t.Name}Accessor";
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// 尝试从当前程序集加载
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var accessorType = Assembly.GetAssembly(t)!.GetType(typeName)
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?? throw new InvalidOperationException($"Accessor type {typeName} not found");
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// 处理泛型参数
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if (isGeneric && accessorType.IsGenericTypeDefinition)
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{
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accessorType = accessorType.MakeGenericType(t.GetGenericArguments());
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}
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return Activator.CreateInstance(accessorType)!;
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});
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}
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public static object GetAccessor(Type type)
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{
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MethodInfo getAccessorMethod = typeof(SourceEntityAccessorFactory)
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.GetMethod(
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name: nameof(GetAccessor),
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bindingAttr: BindingFlags.Public | BindingFlags.Static,
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types: Type.EmptyTypes
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);
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MethodInfo genericMethod = getAccessorMethod.MakeGenericMethod(type);
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return genericMethod.Invoke(null, null);
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}
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}
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