330 lines
11 KiB
C#
330 lines
11 KiB
C#
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//------------------------------------------------------------------------------
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// 此代码版权（除特别声明或在XREF结尾的命名空间的代码）归作者本人若汝棋茗所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议，若本仓库没有设置，则按MIT开源协议授权
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// CSDN博客：https://blog.csdn.net/qq_40374647
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// 哔哩哔哩视频：https://space.bilibili.com/94253567
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// Gitee源代码仓库：https://gitee.com/RRQM_Home
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// Github源代码仓库：https://github.com/RRQM
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// API首页：https://touchsocket.net/
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// 交流QQ群：234762506
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// 感谢您的下载和使用
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//------------------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Reflection;
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using TouchSocket.Core;
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namespace TouchSocket.Rpc
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{
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/// <summary>
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/// Rpc函数实例
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/// </summary>
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public sealed class RpcMethod : Method
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{
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private readonly bool[] m_hasFilters = new bool[4];
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private RpcAttribute[] m_rpcAttributes;
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private RpcAttribute[] m_serverRpcAttributes;
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/// <summary>
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/// 实例化一个Rpc调用函数，并在方法声明的类上操作
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/// </summary>
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/// <param name="methodInfo"></param>
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public RpcMethod(MethodInfo methodInfo) : this(methodInfo, methodInfo.DeclaringType, methodInfo.DeclaringType)
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{
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}
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/// <summary>
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/// 实例化一个Rpc调用函数，并在指定类上操作
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/// </summary>
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/// <param name="method"></param>
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/// <param name="serverFromType"></param>
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/// <param name="serverToType"></param>
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public RpcMethod(MethodInfo method, Type serverFromType, Type serverToType) : base(method, false)
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{
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this.ServerFromType = serverFromType;
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this.ServerToType = serverToType;
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this.Parameters = method.GetParameters().Select(a => new RpcParameter(a)).ToArray();
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var name = $"{serverToType.Name}{method.Name}Func";
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var property = serverToType.GetProperty(name, BindingFlags.NonPublic | BindingFlags.Static);
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if (property == null)
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{
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if (GlobalEnvironment.DynamicBuilderType == DynamicBuilderType.IL)
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{
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this.m_invoker = this.CreateILInvoker(method);
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}
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else if (GlobalEnvironment.DynamicBuilderType == DynamicBuilderType.Expression)
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{
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this.m_invoker = this.CreateExpressionInvoker(method);
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}
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}
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else
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{
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this.m_invoker = (Func<object, object[], object>)property.GetValue(null);
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}
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var fromMethodInfos = new Dictionary<string, MethodInfo>();
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CodeGenerator.GetMethodInfos(this.ServerFromType, ref fromMethodInfos);
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var toMethodInfos = new Dictionary<string, MethodInfo>();
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CodeGenerator.GetMethodInfos(this.ServerToType, ref toMethodInfos);
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var attributes = method.GetCustomAttributes<RpcAttribute>(true);
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if (attributes.Any())
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{
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if (!toMethodInfos.TryGetValue(CodeGenerator.GetMethodId(method), out var toMethod))
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{
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throw new InvalidOperationException($"没有找到方法{method.Name}的实现");
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}
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this.ToMethodInfo = toMethod;
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this.ParameterNames = this.Parameters.Select(a => a.Name).ToArray();
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this.ParameterTypes = this.Parameters.Select(a => a.Type).ToArray();
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}
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this.PrivateGetFilters();
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if (typeof(ITransientRpcServer).IsAssignableFrom(this.ServerToType))
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{
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this.HasCallContext = true;
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}
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else
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{
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this.HasCallContext = this.Parameters.Where(a => a.IsCallContext).Any();
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}
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}
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/// <summary>
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/// 是否可用
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/// </summary>
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public bool IsEnable { get; set; } = true;
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/// <summary>
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/// 参数名集合
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/// </summary>
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public string[] ParameterNames { get; private set; }
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/// <summary>
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/// 参数集合
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/// </summary>
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public RpcParameter[] Parameters { get; private set; }
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/// <summary>
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/// 参数类型集合，已处理out及ref，无参数时为空集合，
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/// </summary>
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public Type[] ParameterTypes { get; private set; }
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/// <summary>
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/// 是否包含调用上下文
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/// </summary>
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public bool HasCallContext { get; private set; }
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/// <summary>
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/// 获取常规Rpc参数。
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/// </summary>
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/// <returns></returns>
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public IEnumerable<RpcParameter> GetNormalParameters()
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{
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return this.Parameters.Where(a =>
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{
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if (a.IsFromServices)
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{
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return false;
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}
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if (a.IsCallContext)
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{
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return false;
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}
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if (a.Type.IsInterface)
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{
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return false;
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}
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return true;
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});
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}
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/// <summary>
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/// Rpc属性集合
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/// </summary>
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public RpcAttribute[] RpcAttributes
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{
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get
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{
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this.m_rpcAttributes ??= this.Info.GetCustomAttributes<RpcAttribute>(true).ToArray();
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return this.m_rpcAttributes;
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}
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}
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/// <summary>
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/// 注册类型
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/// </summary>
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public Type ServerFromType { get; private set; }
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/// <summary>
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/// Rpc服务属性集合
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/// </summary>
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public RpcAttribute[] ServerRpcAttributes
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{
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get
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{
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this.m_serverRpcAttributes ??= this.ServerFromType.GetCustomAttributes<RpcAttribute>(true).ToArray();
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return this.m_serverRpcAttributes;
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}
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}
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/// <summary>
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/// 实例类型
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/// </summary>
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public Type ServerToType { get; private set; }
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/// <summary>
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/// 实现方法。
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/// </summary>
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public MethodInfo ToMethodInfo { get; }
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/// <summary>
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/// 获取指定类型属性标签
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <returns></returns>
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public T GetAttribute<T>()
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{
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var attribute = this.GetAttribute(typeof(T));
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return attribute != null ? (T)attribute : default;
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}
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/// <summary>
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/// 获取指定类型属性标签
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/// </summary>
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/// <param name="attributeType"></param>
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/// <returns></returns>
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public object GetAttribute(Type attributeType)
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{
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object attribute = this.RpcAttributes.FirstOrDefault((a) => { return attributeType.IsAssignableFrom(a.GetType()); });
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if (attribute != null)
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{
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return attribute;
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}
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attribute = this.ServerRpcAttributes.FirstOrDefault((a) => { return attributeType.IsAssignableFrom(a.GetType()); });
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return attribute ?? default;
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}
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/// <summary>
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/// 描述属性
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/// </summary>
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public string GetDescription()
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{
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return this.Info.GetCustomAttribute<DescriptionAttribute>()?.Description;
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}
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/// <summary>
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/// 筛选器
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/// </summary>
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public IList<IRpcActionFilter> GetFilters()
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{
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if (this.m_hasFilters[0] || this.m_hasFilters[1] || this.m_hasFilters[2] || this.m_hasFilters[3])
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{
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var actionFilters = new List<IRpcActionFilter>();
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//注册方法
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if (this.m_hasFilters[0])
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{
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foreach (var item in this.Info.GetCustomAttributes(typeof(IRpcActionFilter), false))
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{
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this.m_hasFilters[0] = true;
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this.AddActionFilter((IRpcActionFilter)item, ref actionFilters);
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}
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}
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if (this.m_hasFilters[1])
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{
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//实现方法
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if (this.ServerFromType != this.ServerToType)
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{
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foreach (var item in this.ToMethodInfo.GetCustomAttributes(typeof(IRpcActionFilter), false))
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{
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this.m_hasFilters[1] = true;
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this.AddActionFilter((IRpcActionFilter)item, ref actionFilters);
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}
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}
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}
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if (this.m_hasFilters[2])
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{
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//注册类
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foreach (var item in this.ServerFromType.GetCustomAttributes(typeof(IRpcActionFilter), false))
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{
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this.m_hasFilters[2] = true;
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this.AddActionFilter((IRpcActionFilter)item, ref actionFilters);
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}
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}
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if (this.m_hasFilters[3])
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{
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//实现类
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if (this.ServerFromType != this.ServerToType)
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{
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foreach (var item in this.ServerToType.GetCustomAttributes(typeof(IRpcActionFilter), false))
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{
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this.m_hasFilters[3] = true;
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this.AddActionFilter((IRpcActionFilter)item, ref actionFilters);
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}
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}
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}
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return actionFilters;
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}
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return new IRpcActionFilter[0];
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}
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private void AddActionFilter(IRpcActionFilter filter, ref List<IRpcActionFilter> filters)
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{
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foreach (var item in filters)
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{
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if (item.GetType() == filter.GetType())
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{
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//同一类型
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return;
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}
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foreach (var item2 in item.MutexAccessTypes)
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{
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if (item2.IsAssignableFrom(filter.GetType()))
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{
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return;
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}
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}
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}
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filters.Add(filter);
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}
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private void PrivateGetFilters()
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{
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//注册方法
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this.m_hasFilters[0] = this.Info.GetCustomAttributes(typeof(IRpcActionFilter), false).Any();
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//实现方法
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if (this.ServerFromType != this.ServerToType)
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{
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this.m_hasFilters[1] = this.ToMethodInfo.GetCustomAttributes(typeof(IRpcActionFilter), false).Any();
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}
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//注册类
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this.m_hasFilters[2] = this.ServerFromType.GetCustomAttributes(typeof(IRpcActionFilter), false).Any();
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//实现类
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if (this.ServerFromType != this.ServerToType)
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{
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this.m_hasFilters[3] = this.ServerToType.GetCustomAttributes(typeof(IRpcActionFilter), false).Any();
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}
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}
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}
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}
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