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https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-02 15:50:47 +08:00
改写了流程依赖管理，封装为一个工具类，将来计划实现动态增加卸载/更新类库的功能
This commit is contained in:
fengjiayi
230
NodeFlow/Tool/FlowLibrary.cs
Normal file
230
NodeFlow/Tool/FlowLibrary.cs
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@@ -0,0 +1,230 @@
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using Serein.Library;
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using Serein.NodeFlow.Tool;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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namespace Serein.NodeFlow
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{
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/// <summary>
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///
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/// </summary>
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public class FlowLibrary
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{
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private readonly Assembly assembly;
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private readonly Action actionOfUnloadAssmbly;
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private string _assemblyFilePath;
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public FlowLibrary(string assemblyFilePath,
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Assembly assembly,
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Action actionOfUnloadAssmbly)
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{
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this._assemblyFilePath = assemblyFilePath;
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this.assembly = assembly;
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this.actionOfUnloadAssmbly = actionOfUnloadAssmbly;
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LoadAssembly(assembly);
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}
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public string FullName => assembly.GetName().FullName;
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public string Version => assembly.GetName().Version.ToString();
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/// <summary>
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/// 加载程序集时创建的方法描述
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/// </summary>
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public ConcurrentDictionary<string, MethodDetails> MethodDetailss { get; } = new ConcurrentDictionary<string, MethodDetails>();
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/// <summary>
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/// 管理通过Emit动态构建的委托
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/// </summary>
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public ConcurrentDictionary<string, DelegateDetails> DelegateDetailss { get; } = new ConcurrentDictionary<string, DelegateDetails>();
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/// <summary>
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/// 记录不同的注册时机需要自动创建全局唯一实例的类型信息
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/// </summary>
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public ConcurrentDictionary<RegisterSequence, List<Type>> RegisterTypes { get; } = new ConcurrentDictionary<RegisterSequence, List<Type>>();
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/// <summary>
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/// 卸载当前程序集以及附带的所有信息
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/// </summary>
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public void Upload()
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{
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actionOfUnloadAssmbly?.Invoke();
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}
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public NodeLibraryInfo ToInfo()
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{
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return new NodeLibraryInfo
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{
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AssemblyName = FullName,
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FileName = Path.GetFileName(_assemblyFilePath),
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FilePath = _assemblyFilePath,
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};
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}
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//public void LoadAssmely(Assembly assembly)
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//{
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// (var registerTypes, var mdlist) = LoadAssembly2(assembly);
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// if (mdlist.Count > 0)
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// {
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// var nodeLibraryInfo = new NodeLibraryInfo
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// {
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// //Assembly = assembly,
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// AssemblyName = assembly.FullName,
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// FileName = Path.GetFileName(_assemblyFilePath),
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// FilePath = _assemblyFilePath,
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// };
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// //LibraryInfos.TryAdd(nodeLibraryInfo.AssemblyName, nodeLibraryInfo);
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// MethodDetailss.TryAdd(nodeLibraryInfo.AssemblyName, mdlist);
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// foreach (var md in mdlist)
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// {
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// MethodDetailss.TryAdd(md.MethodName, md);
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// }
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// foreach (var kv in registerTypes)
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// {
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// if (!RegisterTypes.TryGetValue(kv.Key, out var types))
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// {
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// types = new List<Type>();
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// RegisterTypes.TryAdd(kv.Key, types);
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// }
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// types.AddRange(kv.Value);
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// }
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// var mdInfos = mdlist.Select(md => md.ToInfo()).ToList(); // 转换成方法信息
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// }
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//}
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/// <summary>
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/// 动态加载程序集
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/// </summary>
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/// <param name="assembly">程序集本身</param>
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/// <returns></returns>
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private bool LoadAssembly(Assembly assembly)
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{
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#region 检查入参
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// 加载DLL，创建 MethodDetails、实例作用对象、委托方法
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var assemblyName = assembly.GetName().Name;
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if (string.IsNullOrEmpty(assemblyName)) // 防止动态程序集没有定义程序集名称
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{
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return false;
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}
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List<Type> types = assembly.GetTypes().ToList(); // 获取程序集中的所有类型
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if (types.Count < 0) // 防止动态程序集中没有类型信息？
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{
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return false;
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}
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#endregion
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try
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{
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#region 获取 DynamicFlow 特性的流程控制器，如果没有退出
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// Type ： 具有 DynamicFlowAttribute 标记的类型
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// string ： 类型元数据 DynamicFlowAttribute 特性中的 Name 属性 （用于生成方法描述时，添加在方法别名中提高可读性）
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List<(Type Type, string Name)> scanTypes = new List<(Type Type, string Name)>();
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// (Type, string)
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// Type ： 具有 DynamicFlowAttribute 标记的类型
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// string ： 类型元数据 DynamicFlowAttribute 特性中的 Name 属性
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foreach (var type in types)
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{
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if (type.GetCustomAttribute<DynamicFlowAttribute>() is DynamicFlowAttribute dynamicFlowAttribute && dynamicFlowAttribute.Scan == true)
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{
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scanTypes.Add((type, dynamicFlowAttribute.Name));
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}
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}
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if (scanTypes.Count == 0)
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{
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// 类型没有流程控制器
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return false;
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}
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#endregion
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#region 创建对应的方法元数据
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// 从 scanTypes.Type 创建的方法信息
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// Md : 方法描述
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// Dd ：方法对应的Emit委托
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List<(MethodDetails Md, DelegateDetails Dd)> detailss = new List<(MethodDetails Md, DelegateDetails Dd)>();
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// 遍历扫描的类型
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foreach ((var type, var flowName) in scanTypes)
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{
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var methodInfos = NodeMethodDetailsHelper.GetMethodsToProcess(type);
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foreach (var methodInfo in methodInfos) // 遍历流程控制器类型中的方法信息
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{
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// 尝试创建
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if (!NodeMethodDetailsHelper.TryCreateDetails(type, methodInfo, assemblyName,
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out var md, out var dd)) // 返回的描述
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{
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Console.WriteLine($"无法加载方法信息：{assemblyName}-{type}-{methodInfo}");
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continue;
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}
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md.MethodAnotherName = flowName + md.MethodAnotherName; // 方法别名
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detailss.Add((md, dd));
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}
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}
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#endregion
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#region 检查是否成功加载，如果成功，则真正写入到缓存的集合中
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if(detailss.Count == 0)
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{
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return false;
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}
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#region 加载成功，缓存所有方法、委托的信息
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foreach((var md,var dd) in detailss)
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{
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MethodDetailss.TryAdd(md.MethodName, md);
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DelegateDetailss.TryAdd(md.MethodName, dd);
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}
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#endregion
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#region 加载成功，开始获取并记录所有需要自动实例化的类型（在流程启动时）
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foreach (Type type in types)
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{
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if (type.GetCustomAttribute<AutoRegisterAttribute>() is AutoRegisterAttribute attribute)
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{
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if (!RegisterTypes.TryGetValue(attribute.Class, out var valus))
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{
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valus = new List<Type>();
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RegisterTypes.TryAdd(attribute.Class, valus);
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}
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valus.Add(type);
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}
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}
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#endregion
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#endregion
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return true;
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.ToString());
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return false;
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}
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}
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}
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}
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@@ -1,61 +0,0 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.Loader;
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using System.Text;
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using System.Threading.Tasks;
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namespace Serein.NodeFlow.Tool
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{
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/// <summary>
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/// 管理加载在流程的程序集
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/// </summary>
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public class FlowLibraryLoader : AssemblyLoadContext
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{
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private Assembly _pluginAssembly;
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public string FullName => _pluginAssembly.FullName;
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/// <summary>
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/// 加载程序集
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/// </summary>
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/// <param name="pluginPath"></param>
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public FlowLibraryLoader(string pluginPath) : base(isCollectible: true)
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{
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_pluginAssembly = LoadFromAssemblyPath(pluginPath);
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}
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/// <summary>
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/// 保持默认加载行为
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/// </summary>
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/// <param name="assemblyName"></param>
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/// <returns></returns>
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protected override Assembly Load(AssemblyName assemblyName)
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{
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return null; // 保持默认加载行为
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}
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public List<Type> LoadFlowTypes()
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{
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return _pluginAssembly.GetTypes().ToList();
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}
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/// <summary>
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/// 是否对程序集的引用
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/// </summary>
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public void UnloadPlugin()
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{
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_pluginAssembly = null; // 释放对程序集的引用
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Unload(); // 触发卸载
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// 强制进行垃圾回收，以便完成卸载
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GC.Collect();
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GC.WaitForPendingFinalizers();
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}
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}
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}
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264
NodeFlow/Tool/FlowLibraryManagement.cs
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264
NodeFlow/Tool/FlowLibraryManagement.cs
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@@ -0,0 +1,264 @@
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using Serein.Library;
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using Serein.Library.Api;
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using Serein.Library.FlowNode;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.Loader;
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using System.Text;
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using System.Threading.Tasks;
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namespace Serein.NodeFlow.Tool
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{
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/// <summary>
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/// 管理加载在运行环境中的外部程序集
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/// </summary>
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public class FlowLibraryManagement
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{
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public FlowLibraryManagement(IFlowEnvironment flowEnvironment)
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{
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this.flowEnvironment = flowEnvironment;
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}
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private readonly IFlowEnvironment flowEnvironment;
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/// <summary>
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/// 缓存所有加载了的程序集
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/// </summary>
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private ConcurrentDictionary<string, FlowLibrary> _myFlowLibrarys = new ConcurrentDictionary<string, FlowLibrary>();
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public (NodeLibraryInfo,List<MethodDetailsInfo>) LoadLibrary(string libraryfilePath)
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{
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return LoadDllNodeInfo(libraryfilePath);
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}
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public bool UnloadLibrary(string libraryName)
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{
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if (_myFlowLibrarys.TryGetValue(libraryName, out var flowLibrary))
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{
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try
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{
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flowLibrary.Upload();
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return true;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"尝试卸载程序集[{libraryName}]发生错误：{ex}");
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return false;
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}
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 获取方法描述
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/// </summary>
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/// <param name="assemblyName">程序集名称</param>
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/// <param name="methodName">方法名称</param>
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/// <param name="md">返回的方法描述</param>
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/// <returns>是否获取成功</returns>
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public bool TryGetMethodDetails(string assemblyName, string methodName, [MaybeNullWhen(false)] out MethodDetails md)
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{
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if(_myFlowLibrarys.TryGetValue(assemblyName, out var flowLibrary)
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&& flowLibrary.MethodDetailss.TryGetValue(methodName,out md))
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{
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return true;
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}
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else
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{
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md = null;
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return false;
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}
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}
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/// <summary>
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/// 获取方法调用的委托
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/// </summary>
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/// <param name="assemblyName">程序集名称</param>
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/// <param name="methodName">方法名称</param>
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/// <param name="dd">返回的委托调用封装类</param>
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/// <returns>是否获取成功</returns>
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public bool TryGetDelegateDetails(string assemblyName, string methodName, [MaybeNullWhen(false)] out DelegateDetails dd)
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{
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if (_myFlowLibrarys.TryGetValue(assemblyName, out var flowLibrary)
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&& flowLibrary.DelegateDetailss.TryGetValue(methodName, out dd))
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{
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return true;
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}
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else
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{
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dd = null;
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return false;
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}
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}
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/// <summary>
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/// 获取(初始化/加载时/退出后)相应的节点方法
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/// </summary>
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/// <param name="nodeType"></param>
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/// <returns></returns>
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public List<MethodDetails> GetMdsOnFlowStart(NodeType nodeType)
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{
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List<MethodDetails> mds = [];
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foreach (var library in _myFlowLibrarys.Values)
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{
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var t_mds = library.MethodDetailss.Values.Where(it => it.MethodDynamicType == nodeType).ToList();
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mds.AddRange(t_mds);
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}
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return mds;
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}
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/// <summary>
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/// 获取流程启动时在不同时间点需要自动实例化的类型
|
||||
/// </summary>
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/// <returns></returns>
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public Dictionary<RegisterSequence, List<Type>> GetaAutoRegisterType()
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{
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Dictionary<RegisterSequence, List<Type>> rsTypes = new Dictionary<RegisterSequence, List<Type>>();
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foreach(var library in _myFlowLibrarys.Values)
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{
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foreach(var kv in library.RegisterTypes)
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{
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var @class = kv.Key;
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var type = kv.Value;
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if(!rsTypes.TryGetValue(@class, out var tmpTypes))
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{
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tmpTypes = new List<Type>();
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rsTypes.Add(@class, tmpTypes);
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}
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tmpTypes.AddRange(type);
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}
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}
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return rsTypes;
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}
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/// <summary>
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/// 获取所有方法信息，用于保存项目时调用
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/// </summary>
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/// <returns></returns>
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public List<LibraryMds> GetAllLibraryMds()
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{
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List<LibraryMds> mds = new List<LibraryMds>();
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foreach (FlowLibrary library in _myFlowLibrarys.Values)
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{
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var tmp = new LibraryMds {
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AssemblyName = library.FullName,
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Mds = library.MethodDetailss.Values.Select(md => md.ToInfo()).ToArray()
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};
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mds.Add(tmp);
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}
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return mds;
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}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/// <summary>
|
||||
/// 序列化当前项目的依赖信息、节点信息，用于远程登录的场景，需要将依赖信息从本地（受控端）发送到远程（主控端）
|
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/// </summary>
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/// <returns></returns>
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public List<NodeLibraryInfo> GetAllLibraryInfo()
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{
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return _myFlowLibrarys.Values.Select(library => library.ToInfo()).ToList();
|
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}
|
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|
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#region 功能性方法
|
||||
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||||
/// <summary>
|
||||
/// 从文件路径中加载程序集，返回相应的信息
|
||||
/// </summary>
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||||
/// <param name="dllPath"></param>
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/// <returns></returns>
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private (NodeLibraryInfo, List<MethodDetailsInfo>) LoadDllNodeInfo(string dllPath)
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{
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var fileName = Path.GetFileName(dllPath); // 获取文件名
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||||
Assembly assembly = Assembly.LoadFrom(dllPath); // 加载程序集
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||||
FlowLibrary flowLibrary = new FlowLibrary(dllPath, assembly, () =>
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||||
{
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Console.WriteLine("暂未实现卸载程序集");
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//flowAlc.Unload(); // 卸载程序集
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||||
//flowAlc = null;
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//GC.Collect(); // 强制触发GC确保卸载成功
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||||
//GC.WaitForPendingFinalizers();
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||||
});
|
||||
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||||
_myFlowLibrarys.TryAdd(assembly.GetName().Name, flowLibrary);
|
||||
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||||
(NodeLibraryInfo, List<MethodDetailsInfo>) result = (flowLibrary.ToInfo(),
|
||||
flowLibrary.MethodDetailss.Values.Select(md => md.ToInfo()).ToList());
|
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return result;
|
||||
|
||||
|
||||
#if false
|
||||
var fileName = Path.GetFileName(dllPath); // 获取文件名
|
||||
var flowAlc = new AssemblyLoadContext(fileName, true);
|
||||
flowAlc.LoadFromAssemblyPath(dllPath); // 加载指定路径的程序集
|
||||
flowAlc.LoadFromAssemblyPath(@"F:\临时\project\yolo flow\OpenCvSharp.dll"); // 加载指定路径的程序集
|
||||
|
||||
var assemblt = flowAlc.Assemblies.ToArray()[0]; // 目前只会加载一个程序集，所以这样获取
|
||||
FlowLibrary flowLibrary = new FlowLibrary(dllPath, assemblt, () =>
|
||||
{
|
||||
flowAlc.Unload(); // 卸载程序集
|
||||
flowAlc = null;
|
||||
GC.Collect(); // 强制触发GC确保卸载成功
|
||||
GC.WaitForPendingFinalizers();
|
||||
});
|
||||
_myFlowLibrarys.TryAdd(assemblt.GetName().Name, flowLibrary);
|
||||
return flowLibrary.ToInfo();
|
||||
|
||||
|
||||
//foreach (var assemblt in flowAlc.Assemblies)
|
||||
//{
|
||||
// FlowLibrary flowLibrary = new FlowLibrary(dllPath, assemblt, () =>
|
||||
// {
|
||||
// flowAlc.Unload(); // 卸载程序集
|
||||
// flowAlc = null;
|
||||
// GC.Collect(); // 强制触发GC确保卸载成功
|
||||
// GC.WaitForPendingFinalizers();
|
||||
// });
|
||||
//}
|
||||
|
||||
#endif
|
||||
//if (OperatingSystem.IsWindows())
|
||||
//{
|
||||
// UIContextOperation?.Invoke(() => OnDllLoad?.Invoke(new LoadDllEventArgs(nodeLibraryInfo, mdInfos))); // 通知UI创建dll面板显示
|
||||
|
||||
//}
|
||||
}
|
||||
|
||||
|
||||
|
||||
#endregion
|
||||
|
||||
|
||||
|
||||
///// <summary>
|
||||
///// 是否对程序集的引用
|
||||
///// </summary>
|
||||
//public void UnloadPlugin()
|
||||
//{
|
||||
// _pluginAssembly = null; // 释放对程序集的引用
|
||||
// Unload(); // 触发卸载
|
||||
// // 强制进行垃圾回收，以便完成卸载
|
||||
// GC.Collect();
|
||||
// GC.WaitForPendingFinalizers();
|
||||
//}
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
@@ -5,6 +5,7 @@ using System.Collections.Concurrent;
|
||||
using System.Reflection;
|
||||
using Serein.Library.FlowNode;
|
||||
using System.Diagnostics;
|
||||
using System.Diagnostics.CodeAnalysis;
|
||||
|
||||
namespace Serein.NodeFlow.Tool;
|
||||
|
||||
@@ -21,21 +22,35 @@ public static class NodeMethodDetailsHelper
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 创建方法信息
|
||||
/// 创建方法信息/委托信息
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
public static (MethodDetails?, DelegateDetails?) CreateMethodDetails(Type type, MethodInfo method, string assemblyName)
|
||||
/// <param name="type">方法所属的类型</param>
|
||||
/// <param name="methodInfo">方法信息</param>
|
||||
/// <param name="assemblyName">方法所属的程序集名称</param>
|
||||
/// <param name="methodDetails">创建的方法描述，用来生成节点信息</param>
|
||||
/// <param name="delegateDetails">方法对应的Emit动态委托</param>
|
||||
/// <returns>指示是否创建成功</returns>
|
||||
public static bool TryCreateDetails(Type type,
|
||||
MethodInfo methodInfo,
|
||||
string assemblyName,
|
||||
[MaybeNullWhen(false)] out MethodDetails methodDetails,
|
||||
[MaybeNullWhen(false)] out DelegateDetails delegateDetails)
|
||||
{
|
||||
var attribute = method.GetCustomAttribute<NodeActionAttribute>();
|
||||
|
||||
|
||||
var attribute = methodInfo.GetCustomAttribute<NodeActionAttribute>();
|
||||
if(attribute is null || attribute.Scan == false)
|
||||
{
|
||||
return (null, null);
|
||||
methodDetails = null;
|
||||
delegateDetails = null;
|
||||
return false;
|
||||
}
|
||||
//var dllTypeName = $"{assemblyName}.{type.Name}";
|
||||
var dllTypeMethodName = $"{assemblyName}.{type.Name}.{method.Name}";
|
||||
Console.WriteLine("loading method : " +dllTypeMethodName);
|
||||
Debug.WriteLine("loading method : " +dllTypeMethodName);
|
||||
var explicitDataOfParameters = GetExplicitDataOfParameters(method.GetParameters());
|
||||
|
||||
var methodName = $"{assemblyName}.{type.Name}.{methodInfo.Name}";
|
||||
Console.WriteLine("loading method : " + methodName);
|
||||
|
||||
// 创建参数信息
|
||||
var explicitDataOfParameters = GetExplicitDataOfParameters(methodInfo.GetParameters());
|
||||
|
||||
|
||||
|
||||
@@ -46,17 +61,17 @@ public static class NodeMethodDetailsHelper
|
||||
// method.ReturnType);// 返回值
|
||||
|
||||
//// 通过表达式树生成委托
|
||||
var emitMethodType = EmitHelper.CreateDynamicMethod(method, out var methodDelegate);// 返回值
|
||||
var emitMethodType = EmitHelper.CreateDynamicMethod(methodInfo, out var methodDelegate);// 返回值
|
||||
|
||||
Type? returnType;
|
||||
bool isTask = IsGenericTask(method.ReturnType, out var taskResult);
|
||||
bool isTask = IsGenericTask(methodInfo.ReturnType, out var taskResult);
|
||||
|
||||
if (attribute.MethodDynamicType == Library.NodeType.Flipflop)
|
||||
{
|
||||
if (method.ReturnType.IsGenericType && method.ReturnType.GetGenericTypeDefinition() == typeof(Task<>))
|
||||
if (methodInfo.ReturnType.IsGenericType && methodInfo.ReturnType.GetGenericTypeDefinition() == typeof(Task<>))
|
||||
{
|
||||
// 获取 Task<> 的泛型参数类型
|
||||
var innerType = method.ReturnType.GetGenericArguments()[0];
|
||||
var innerType = methodInfo.ReturnType.GetGenericArguments()[0];
|
||||
if (innerType.IsGenericType && innerType.GetGenericTypeDefinition() == typeof(IFlipflopContext<>))
|
||||
{
|
||||
var flipflopType = innerType.GetGenericArguments()[0];
|
||||
@@ -64,14 +79,18 @@ public static class NodeMethodDetailsHelper
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"[{dllTypeMethodName}]跳过创建，返回类型非预期的Task<IFlipflopContext<TResult>>。");
|
||||
return (null, null);
|
||||
Console.WriteLine($"[{methodName}]跳过创建，返回类型非预期的Task<IFlipflopContext<TResult>>。");
|
||||
methodDetails = null;
|
||||
delegateDetails = null;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
Console.WriteLine($"[{dllTypeMethodName}]跳过创建，因为触发器方法的返回值并非Task<>，将无法等待。");
|
||||
return (null, null);
|
||||
Console.WriteLine($"[{methodName}]跳过创建，因为触发器方法的返回值并非Task<>，将无法等待。");
|
||||
methodDetails = null;
|
||||
delegateDetails = null;
|
||||
return false;
|
||||
}
|
||||
|
||||
//if (!isTask || taskResult != typeof(IFlipflopContext<object>))
|
||||
@@ -86,11 +105,11 @@ public static class NodeMethodDetailsHelper
|
||||
}
|
||||
else
|
||||
{
|
||||
returnType = method.ReturnType;
|
||||
returnType = methodInfo.ReturnType;
|
||||
}
|
||||
|
||||
if (string.IsNullOrEmpty(attribute.AnotherName)){
|
||||
attribute.AnotherName = method.Name;
|
||||
attribute.AnotherName = methodInfo.Name;
|
||||
}
|
||||
|
||||
|
||||
@@ -107,18 +126,22 @@ public static class NodeMethodDetailsHelper
|
||||
var md = new MethodDetails() // 从DLL生成方法描述（元数据）
|
||||
{
|
||||
ActingInstanceType = type,
|
||||
// ActingInstance = instance,
|
||||
MethodName = dllTypeMethodName,
|
||||
// ActingInstance = instance,
|
||||
MethodName = methodName,
|
||||
AssemblyName = assemblyName,
|
||||
MethodDynamicType = attribute.MethodDynamicType,
|
||||
MethodLockName = attribute.LockName,
|
||||
MethodAnotherName = methodMethodAnotherName,
|
||||
ParameterDetailss = explicitDataOfParameters,
|
||||
ReturnType = returnType,
|
||||
// 如果存在可变参数，取最后一个元素的下标，否则为-1；
|
||||
ParamsArgIndex = hasParamsArg ? explicitDataOfParameters.Length-1 : -1,
|
||||
ParamsArgIndex = hasParamsArg ? explicitDataOfParameters.Length - 1 : -1,
|
||||
};
|
||||
var dd = new DelegateDetails(emitMethodType, methodDelegate) ;
|
||||
return (md, dd);
|
||||
|
||||
methodDetails = md;
|
||||
delegateDetails = dd;
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user
