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重写了节点的view、viewmodel关系，实现了对画布元素的选取功能，重构了底层依赖，添加了对net .Framework4.6.1以上的Framework类库支持

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fengjiayi
2024-09-12 20:32:54 +08:00
parent ec6e09ced1
commit f286fc644a
120 changed files with 91218 additions and 761 deletions
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13
Library.Core/Flow/Api.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.Flow
{
public interface IDynamicFlowNode
{
}
}

73
Library.Core/Flow/Attribute.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.Flow
{
public enum DynamicNodeType
{
/// <summary>
/// 初始化
/// </summary>
Init,
/// <summary>
/// 开始载入
/// </summary>
Loading,
/// <summary>
/// 结束
/// </summary>
Exit,
/// <summary>
/// 触发器
/// </summary>
Flipflop,
/// <summary>
/// 条件节点
/// </summary>
Condition,
/// <summary>
/// 动作节点
/// </summary>
Action,
}
/// <summary>
/// 用来判断一个类是否需要注册并构建实例（单例模式场景使用）
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public class DynamicFlowAttribute(bool scan = true) : Attribute
{
public bool Scan { get; set; } = scan;
}
/// <summary>
/// 标记一个方法是什么类型，加载dll后用来拖拽到画布中
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public class MethodDetailAttribute(DynamicNodeType methodDynamicType,
string methodTips = "",
bool scan = true,
string lockName = "") : Attribute
{
public bool Scan { get; set; } = scan;
public string MethodTips { get; } = methodTips;
public DynamicNodeType MethodDynamicType { get; } = methodDynamicType;
public string LockName { get; } = lockName;
}
/// <summary>
/// 是否为显式参数
/// </summary>
[AttributeUsage(AttributeTargets.Parameter)]
public class ExplicitAttribute : Attribute // where TEnum : Enum
{
}
}

168
Library.Core/Flow/DynamicContext.cs Normal file
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using DynamicDemo.Node;
using Serein.Library.IOC;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using static System.Collections.Specialized.BitVector32;
using static System.Runtime.InteropServices.JavaScript.JSType;
namespace Serein.Flow
{
public enum FfState
{
Succeed,
Cancel,
}
/// <summary>
/// 触发器上下文
/// </summary>
public class FlipflopContext
{
public FfState State { get; set; }
public object? Data { get; set; }
/*public FlipflopContext()
{
State = FfState.Cancel;
}*/
public FlipflopContext(FfState ffState,object? data = null)
{
State = ffState;
Data = data;
}
}
/// <summary>
/// 动态流程上下文
/// </summary>
public class DynamicContext(IServiceContainer serviceContainer)
{
private readonly string contextGuid = "";//System.Guid.NewGuid().ToString();
public IServiceContainer ServiceContainer { get; } = serviceContainer;
private List<Type> InitServices { get; set; } = [];
// private ConcurrentDictionary<string, object?> ContextData { get; set; } = [];
//public void SetFlowData(object data)
//{
// var threadId = Thread.CurrentThread.ManagedThreadId.ToString();
// var name = $"{threadId}.{contextGuid}FlowData";
// SetData(name,data);
//}
//public object GetFlowData(bool IsRetain = false)
//{
// var threadId = Thread.CurrentThread.ManagedThreadId.ToString();
// var name = $"{threadId}.{contextGuid}FlowData";
// if (IsRetain)
// {
// return GetData(name);
// }
// else
// {
// return GetAndRemoteData(name);
// }
//}
public void InitService<T>()
{
InitService(typeof(T));
}
public void InitService(Type type)
{
if (!InitServices.Contains(type))
{
InitServices.Add(type);
}
else
{
//throw new Exception("初始化时试图添加已存在的类型："+type.Name);
Console.WriteLine("初始化时试图添加已存在的类型：" + type.Name);
}
}
public void Biuld()
{
foreach (var item in InitServices)
{
ServiceContainer.Register(item);
}
ServiceContainer.Build();
}
//public object? RemoveData(string key)
//{
// if (ContextData.Remove(key, out var data))
// {
// return data;
// }
// return null;
//}
//public void SetData<T>(string key, T value)
//{
// ContextData[key] = value;
//}
//public T? GetData<T>(string key)
//{
// if (ContextData.TryGetValue(key, out object? value))
// {
// if(value == null)
// {
// return default;
// }
// if (value.GetType() == typeof(T))
// {
// return (T)value;
// }
// }
// return default;
//}
//public object? GetData(string key)
//{
// if (ContextData.TryGetValue(key, out object? value))
// {
// return value;
// }
// return null;
//}
//public ConcurrentDictionary<string,Task> FlipFlopTasks { get; set; } = [];
public NodeRunTcs NodeRunCts { get; set; }
public Task CreateTimingTask(Action action, int time = 100, int count = -1)
{
NodeRunCts ??= ServiceContainer.Get<NodeRunTcs>();
return Task.Factory.StartNew(async () =>
{
for(int i = 0; i < count; i++)
{
NodeRunCts.Token.ThrowIfCancellationRequested();
await time;
action.Invoke();
}
});
}
}
public static class MyExtensions
{
public static TaskAwaiter GetAwaiter(this int i) => Task.Delay(i).GetAwaiter();
}
// if (time <= 0) throw new ArgumentException("时间不能≤0");
}

240
Library.Core/Flow/MethodDetails.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static Dm.net.buffer.ByteArrayBuffer;
namespace Serein.Flow
{
/// <summary>
/// 显式参数
/// </summary>
public class ExplicitData
{
/// <summary>
/// 索引
/// </summary>
public int Index { get; set; }
/// <summary>
/// 是否为显式参数
/// </summary>
public bool IsExplicitData { get; set; }
/// <summary>
/// 显式类型
/// </summary>
public Type? ExplicitType { get; set; }
/// <summary>
/// 显示类型编号>
/// </summary>
public string ExplicitTypeName { get; set; }
/// <summary>
/// 方法需要的类型
/// </summary>
public Type DataType { get; set; }
/// <summary>
/// 方法入参参数名称
/// </summary>
public string ParameterName { get; set; }
/// <summary>
/// 入参值
/// </summary>
public string DataValue { get; set; }
public string[] Items { get; set; }
public ExplicitData Clone() => new()
{
Index = Index,
IsExplicitData = IsExplicitData,
ExplicitType = ExplicitType,
DataType = DataType,
ParameterName = ParameterName,
ExplicitTypeName = ExplicitTypeName,
DataValue = string.IsNullOrEmpty(DataValue) ? string.Empty : DataValue,
Items = [.. Items],
};
}
public class MethodDetails
{
public MethodDetails Clone()
{
return new MethodDetails
{
ActingInstance = ActingInstance,
ActingInstanceType = ActingInstanceType,
MethodDelegate = MethodDelegate,
MethodDynamicType = MethodDynamicType,
MethodGuid = Guid.NewGuid().ToString(),
MethodTips = MethodTips ,
ReturnType = ReturnType,
MethodName = MethodName,
MethodLockName = MethodLockName,
ExplicitDatas = ExplicitDatas.Select(it => it.Clone()).ToArray(),
};
}
/// <summary>
/// 作用实例
/// </summary>
public Type ActingInstanceType { get; set; }
/// <summary>
/// 作用实例
/// </summary>
public object ActingInstance { get; set; }
/// <summary>
/// 方法GUID
/// </summary>
public string MethodGuid { get; set; }
/// <summary>
/// 方法名称
/// </summary>
public string MethodName { get; set; }
/// <summary>
/// 方法委托
/// </summary>
public Delegate MethodDelegate { get; set; }
/// <summary>
/// 节点类型
/// </summary>
public DynamicNodeType MethodDynamicType { get; set; }
/// <summary>
/// 锁名称
/// </summary>
public string MethodLockName { get; set; }
/// <summary>
/// 方法说明
/// </summary>
public string MethodTips { get; set; }
/// <summary>
/// 参数内容
/// </summary>
public ExplicitData[] ExplicitDatas { get; set; }
/// <summary>
/// 出参类型
/// </summary>
public Type ReturnType { get; set; }
public bool IsCanConnect(Type returnType)
{
if (ExplicitDatas.Length == 0)
{
// 目标不需要传参，可以舍弃结果？
return true;
}
var types = ExplicitDatas.Select(it => it.DataType).ToArray();
// 检查返回类型是否是元组类型
if (returnType.IsGenericType && IsValueTuple(returnType))
{
return CompareGenericArguments(returnType, types);
}
else
{
int index = 0;
if (types[index] == typeof(DynamicContext))
{
index++;
if (types.Length == 1)
{
return true;
}
}
// 被连接节点检查自己需要的参数类型，与发起连接的节点比较返回值类型
if (returnType == types[index])
{
return true;
}
}
return false;
}
/// <summary>
/// 检查元组类型
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
private bool IsValueTuple(Type type)
{
if (!type.IsGenericType) return false;
var genericTypeDef = type.GetGenericTypeDefinition();
return genericTypeDef == typeof(ValueTuple<>) ||
genericTypeDef == typeof(ValueTuple<,>) ||
genericTypeDef == typeof(ValueTuple<,,>) ||
genericTypeDef == typeof(ValueTuple<,,,>) ||
genericTypeDef == typeof(ValueTuple<,,,,>) ||
genericTypeDef == typeof(ValueTuple<,,,,,>) ||
genericTypeDef == typeof(ValueTuple<,,,,,,>) ||
genericTypeDef == typeof(ValueTuple<,,,,,,,>);
}
private bool CompareGenericArguments(Type returnType, Type[] parameterTypes)
{
var genericArguments = returnType.GetGenericArguments();
var length = parameterTypes.Length;
for (int i = 0; i < genericArguments.Length; i++)
{
if (i >= length) return false;
if (IsValueTuple(genericArguments[i]))
{
// 如果当前参数也是 ValueTuple，递归检查嵌套的泛型参数
if (!CompareGenericArguments(genericArguments[i], parameterTypes.Skip(i).ToArray()))
{
return false;
}
}
else if (genericArguments[i] != parameterTypes[i])
{
return false;
}
}
return true;
}
}
}

171
Library.Core/Flow/NodeFlowStarter.cs Normal file
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using Serein.Flow;
using Serein.Flow.NodeModel;
using Serein.Flow.Tool;
using Serein.Library.Http;
using Serein.Library.IOC;
using SqlSugar;
namespace DynamicDemo.Node
{
public class NodeRunTcs: CancellationTokenSource
{
}
public class NodeFlowStarter(IServiceContainer serviceContainer,List<MethodDetails> methodDetails)
{
private readonly IServiceContainer ServiceContainer = serviceContainer;
private readonly List<MethodDetails> methodDetails = methodDetails;
private Action ExitAction = null;
private DynamicContext context = null;
public NodeRunTcs MainCts;
/// <summary>
/// 运行测试
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
//public async Task RunAsync1(List<NodeBase> nodes)
//{
// await Task.Run(async ()=> await StartRunAsync(nodes));
//}
public async Task RunAsync(List<NodeBase> nodes)
{
var startNode = nodes.FirstOrDefault(p => p.IsStart);
if (startNode == null) { return; }
context = new(ServiceContainer);
MainCts = ServiceContainer.CreateServiceInstance<NodeRunTcs>();
var initMethods = methodDetails.Where(it => it.MethodDynamicType == DynamicNodeType.Init).ToList();
var loadingMethods = methodDetails.Where(it => it.MethodDynamicType == DynamicNodeType.Loading).ToList();
var exitMethods = methodDetails.Where(it => it.MethodDynamicType == DynamicNodeType.Exit).ToList();
ExitAction = () =>
{
ServiceContainer.Run<WebServer>((web) =>
{
web?.Stop();
});
foreach (MethodDetails? md in exitMethods)
{
object?[]? args = [context];
object?[]? data = [md.ActingInstance, args];
md.MethodDelegate.DynamicInvoke(data);
}
if(context != null && context.NodeRunCts != null && !context.NodeRunCts.IsCancellationRequested)
{
context.NodeRunCts.Cancel();
}
if (MainCts!=null && !MainCts.IsCancellationRequested) MainCts.Cancel();
ServiceContainer.Reset();
};
foreach (var md in initMethods) // 初始化 - 调用方法
{
//md.ActingInstance = context.ServiceContainer.Get(md.ActingInstanceType);
object?[]? args = [context];
object?[]? data = [md.ActingInstance, args];
md.MethodDelegate.DynamicInvoke(data);
}
context.Biuld();
foreach (var md in loadingMethods) // 加载
{
//md.ActingInstance = context.ServiceContainer.Get(md.ActingInstanceType);
object?[]? args = [context];
object?[]? data = [md.ActingInstance, args];
md.MethodDelegate.DynamicInvoke(data);
}
var flipflopNodes = nodes.Where(it => it.MethodDetails?.MethodDynamicType == DynamicNodeType.Flipflop
&& it.PreviousNodes.Count == 0
&& it.IsStart != true).ToArray();
var singleFlipflopNodes = flipflopNodes.Select(it => (SingleFlipflopNode)it).ToArray();
// 使用 TaskCompletionSource 创建未启动的任务
var tasks = singleFlipflopNodes.Select(async node =>
{
await FlipflopExecute(node);
}).ToArray();
try
{
await Task.WhenAll([startNode.ExecuteStack(context),.. tasks]);
}
catch (Exception ex)
{
await Console.Out.WriteLineAsync(ex.ToString());
}
}
private async Task FlipflopExecute(SingleFlipflopNode singleFlipFlopNode)
{
DynamicContext context = new DynamicContext(ServiceContainer);
MethodDetails md = singleFlipFlopNode.MethodDetails;
try
{
if (!DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
{
return;
}
var func = md.ExplicitDatas.Length == 0 ? ((Func<object, object, Task<FlipflopContext>>)del) : ((Func<object, object[], Task<FlipflopContext>>)del);
while (!MainCts.IsCancellationRequested) // 循环中直到栈为空才会退出
{
object?[]? parameters = singleFlipFlopNode.GetParameters(context, md);
// 调用委托并获取结果
FlipflopContext flipflopContext = await func.Invoke(md.ActingInstance, parameters);
if (flipflopContext == null)
{
break;
}
else if (flipflopContext.State == FfState.Cancel)
{
break;
}
else if (flipflopContext.State == FfState.Succeed)
{
singleFlipFlopNode.FlowState = true;
singleFlipFlopNode.FlowData = flipflopContext.Data;
var tasks = singleFlipFlopNode.SucceedBranch.Select(nextNode =>
{
var context = new DynamicContext(ServiceContainer);
nextNode.PreviousNode = singleFlipFlopNode;
return nextNode.ExecuteStack(context);
}).ToArray();
Task.WaitAll(tasks);
}
}
}
catch (Exception ex)
{
await Console.Out.WriteLineAsync(ex.ToString());
}
}
public void Exit()
{
ExitAction?.Invoke();
}
}
}

51
Library.Core/Flow/NodeModel/CompositeActionNode.cs Normal file
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namespace Serein.Flow.NodeModel
{
/// <summary>
/// 组合动作节点（用于动作区域）
/// </summary>
public class CompositeActionNode : NodeBase
{
public List<SingleActionNode> ActionNodes;
/// <summary>
/// 组合动作节点（用于动作区域）
/// </summary>
public CompositeActionNode(List<SingleActionNode> actionNodes)
{
ActionNodes = actionNodes;
}
public void AddNode(SingleActionNode node)
{
ActionNodes.Add(node);
MethodDetails ??= node.MethodDetails;
}
//public override void Execute(DynamicContext context)
//{
// //Dictionary<int,object> dict = new Dictionary<int,object>();
// for (int i = 0; i < ActionNodes.Count; i++)
// {
// SingleActionNode? action = ActionNodes[i];
// try
// {
// action.Execute(context);
// }
// catch (Exception ex)
// {
// Debug.Write(ex.Message);
// return;
// }
// }
// CurrentState = true;
// return;
// /*foreach (var nextNode in TrueBranchNextNodes)
// {
// nextNode.ExecuteStack(context);
// }*/
//}
}
}

67
Library.Core/Flow/NodeModel/CompositeConditionNode.cs Normal file
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namespace Serein.Flow.NodeModel
{
/// <summary>
/// 组合条件节点（用于条件区域）
/// </summary>
public class CompositeConditionNode : NodeBase
{
public List<SingleConditionNode> ConditionNodes { get; } =[];
public void AddNode(SingleConditionNode node)
{
ConditionNodes.Add(node);
MethodDetails ??= node.MethodDetails;
}
public override object? Execute(DynamicContext context)
{
// bool allTrue = ConditionNodes.All(condition => Judge(context,condition.MethodDetails));
// bool IsAllTrue = true; // 初始化为 true
FlowState = true;
foreach (SingleConditionNode? node in ConditionNodes)
{
if (!Judge(context, node))
{
FlowState = false;
break;// 一旦发现条件为假，立即退出循环
}
}
return PreviousNode?.FlowData;
//if (IsAllTrue)
//{
// foreach (var nextNode in TrueBranchNextNodes)
// {
// nextNode.ExecuteStack(context);
// }
//}
//else
//{
// foreach (var nextNode in FalseBranchNextNodes)
// {
// nextNode.ExecuteStack(context);
// }
//}
}
private bool Judge(DynamicContext context, SingleConditionNode node)
{
try
{
node.Execute(context);
return node.FlowState;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return false;
}
}
}

6
Library.Core/Flow/NodeModel/CompositeLoopNode.cs Normal file
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namespace Serein.Flow.NodeModel
{
public class CompositeLoopNode : NodeBase
{
}
}

510
Library.Core/Flow/NodeModel/NodeBase.cs Normal file
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using Newtonsoft.Json;
using Serein.Flow.Tool;
namespace Serein.Flow.NodeModel
{
public enum ConnectionType
{
/// <summary>
/// 真分支
/// </summary>
IsSucceed,
/// <summary>
/// 假分支
/// </summary>
IsFail,
/// <summary>
/// 异常发生分支
/// </summary>
IsError,
/// <summary>
/// 上游分支（执行当前节点前会执行一次上游分支）
/// </summary>
Upstream,
}
/// <summary>
/// 节点基类（数据）：条件控件，动作控件，条件区域，动作区域
/// </summary>
public abstract class NodeBase : IDynamicFlowNode
{
public MethodDetails MethodDetails { get; set; }
public string Guid { get; set; }
public string DisplayName { get; set; }
public bool IsStart { get; set; }
public string DelegateName { get; set; }
/// <summary>
/// 运行时的上一节点
/// </summary>
public NodeBase? PreviousNode { get; set; }
/// <summary>
/// 上一节点集合
/// </summary>
public List<NodeBase> PreviousNodes { get; set; } = [];
/// <summary>
/// 下一节点集合（真分支）
/// </summary>
public List<NodeBase> SucceedBranch { get; set; } = [];
/// <summary>
/// 下一节点集合（假分支）
/// </summary>
public List<NodeBase> FailBranch { get; set; } = [];
/// <summary>
/// 异常分支
/// </summary>
public List<NodeBase> ErrorBranch { get; set; } = [];
/// <summary>
/// 上游分支
/// </summary>
public List<NodeBase> UpstreamBranch { get; set; } = [];
/// <summary>
/// 当前状态（进入真分支还是假分支，异常分支在异常中确定）
/// </summary>
public bool FlowState { get; set; } = true;
//public ConnectionType NextType { get; set; } = ConnectionType.IsTrue;
/// <summary>
/// 当前传递数据
/// </summary>
public object? FlowData { get; set; } = null;
// 正常流程节点调用
public virtual object? Execute(DynamicContext context)
{
MethodDetails md = MethodDetails;
object? result = null;
if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
{
if (md.ExplicitDatas.Length == 0)
{
if (md.ReturnType == typeof(void))
{
((Action<object>)del).Invoke(md.ActingInstance);
}
else
{
result = ((Func<object, object>)del).Invoke(md.ActingInstance);
}
}
else
{
object?[]? parameters = GetParameters(context, MethodDetails);
if (md.ReturnType == typeof(void))
{
((Action<object, object[]>)del).Invoke(md.ActingInstance, parameters);
}
else
{
result = ((Func<object, object[], object>)del).Invoke(md.ActingInstance, parameters);
}
}
// context.SetFlowData(result);
// CurrentData = result;
}
return result;
}
// 触发器调用
public virtual async Task<object?> ExecuteAsync(DynamicContext context)
{
MethodDetails md = MethodDetails;
object? result = null;
if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
{
if (md.ExplicitDatas.Length == 0)
{
// 调用委托并获取结果
FlipflopContext flipflopContext = await ((Func<object, Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance);
if (flipflopContext != null)
{
if (flipflopContext.State == FfState.Cancel)
{
throw new Exception("this async task is cancel.");
}
else
{
if (flipflopContext.State == FfState.Succeed)
{
FlowState = true;
result = flipflopContext.Data;
}
else
{
FlowState = false;
}
}
}
}
else
{
object?[]? parameters = GetParameters(context, MethodDetails);
// 调用委托并获取结果
FlipflopContext flipflopContext = await ((Func<object, object[], Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance, parameters);
if (flipflopContext != null)
{
if (flipflopContext.State == FfState.Cancel)
{
throw new Exception("取消此异步");
}
else
{
FlowState = flipflopContext.State == FfState.Succeed;
result = flipflopContext.Data;
}
}
}
}
return result;
}
public async Task ExecuteStack(DynamicContext context)
{
await Task.Run(async () =>
{
await ExecuteStackTmp(context);
});
}
public async Task ExecuteStackTmp(DynamicContext context)
{
var cts = context.ServiceContainer.Get<CancellationTokenSource>();
Stack<NodeBase> stack =[];
stack.Push(this);
while (stack.Count > 0 && !cts.IsCancellationRequested) // 循环中直到栈为空才会退出循环
{
// 从栈中弹出一个节点作为当前节点进行处理
var currentNode = stack.Pop();
if (currentNode.MethodDetails != null)
{
currentNode.MethodDetails.ActingInstance ??= context.ServiceContainer.Get(MethodDetails.ActingInstanceType);
} // 设置方法执行的对象
// 获取上游分支，首先执行一次
var upstreamNodes = currentNode.UpstreamBranch;
for (int i = upstreamNodes.Count - 1; i >= 0; i--)
{
upstreamNodes[i].PreviousNode = currentNode;
await upstreamNodes[i].ExecuteStack(context);
}
if (currentNode.MethodDetails != null && currentNode.MethodDetails.MethodDynamicType == DynamicNodeType.Flipflop)
{
currentNode.FlowData = await currentNode.ExecuteAsync(context);
}
else
{
currentNode.FlowData = currentNode.Execute(context);
}
var nextNodes = currentNode.FlowState ? currentNode.SucceedBranch
: currentNode.FailBranch;
// 将下一个节点集合中的所有节点逆序推入栈中
for (int i = nextNodes.Count - 1; i >= 0; i--)
{
nextNodes[i].PreviousNode = currentNode;
stack.Push(nextNodes[i]);
}
}
}
public object[]? GetParameters(DynamicContext context, MethodDetails md)
{
// 用正确的大小初始化参数数组
var types = md.ExplicitDatas.Select(it => it.DataType).ToArray();
if (types.Length == 0)
{
return [md.ActingInstance];
}
object[]? parameters = new object[types.Length];
for (int i = 0; i < types.Length; i++)
{
var mdEd = md.ExplicitDatas[i];
Type type = mdEd.DataType;
var f1 = PreviousNode?.FlowData?.GetType();
var f2 = mdEd.DataType;
if (type == typeof(DynamicContext))
{
parameters[i] = context;
}
else if (type == typeof(MethodDetails))
{
parameters[i] = md;
}
else if (type == typeof(NodeBase))
{
parameters[i] = this;
}
else if (mdEd.IsExplicitData) // 显式参数
{
if (mdEd.DataType.IsEnum)
{
var enumValue = Enum.Parse(mdEd.DataType, mdEd.DataValue);
parameters[i] = enumValue;
}
else if (mdEd.ExplicitType == typeof(string))
{
parameters[i] = mdEd.DataValue;
}
else if (mdEd.ExplicitType == typeof(bool))
{
parameters[i] = bool.Parse(mdEd.DataValue);
}
else if (mdEd.ExplicitType == typeof(int))
{
parameters[i] = int.Parse(mdEd.DataValue);
}
else if (mdEd.ExplicitType == typeof(double))
{
parameters[i] = double.Parse(mdEd.DataValue);
}
else
{
parameters[i] = "";
//parameters[i] = ConvertValue(mdEd.DataValue, mdEd.ExplicitType);
}
}
else if ((f1 != null && f2 != null) && f2.IsAssignableFrom(f1) || f2.FullName.Equals(f1.FullName))
{
parameters[i] = PreviousNode?.FlowData;
}
else
{
var tmpParameter = PreviousNode?.FlowData?.ToString();
if (mdEd.DataType.IsEnum)
{
var enumValue = Enum.Parse(mdEd.DataType, tmpParameter);
parameters[i] = enumValue;
}
else if (mdEd.DataType == typeof(string))
{
parameters[i] = tmpParameter;
}
else if (mdEd.DataType == typeof(bool))
{
parameters[i] = bool.Parse(tmpParameter);
}
else if (mdEd.DataType == typeof(int))
{
parameters[i] = int.Parse(tmpParameter);
}
else if (mdEd.DataType == typeof(double))
{
parameters[i] = double.Parse(tmpParameter);
}
else
{
if (tmpParameter != null && mdEd.DataType!= null)
{
parameters[i] = ConvertValue(tmpParameter, mdEd.DataType);
}
}
}
}
return parameters;
}
private dynamic? ConvertValue(string value, Type targetType)
{
try
{
if (!string.IsNullOrEmpty(value))
{
return JsonConvert.DeserializeObject(value, targetType);
}
else
{
return null;
}
}
catch (JsonReaderException ex)
{
Console.WriteLine(ex);
return value;
}
catch (JsonSerializationException ex)
{
// 如果无法转为对应的JSON对象
int startIndex = ex.Message.IndexOf("to type '") + "to type '".Length; // 查找类型信息开始的索引
int endIndex = ex.Message.IndexOf('\''); // 查找类型信息结束的索引
var typeInfo = ex.Message[startIndex..endIndex]; // 提取出错类型信息，该怎么传出去？
Console.WriteLine("无法转为对应的JSON对象:"+typeInfo);
return null;
}
catch // (Exception ex)
{
return value;
}
}
#region 完整的ExecuteAsync调用方法（不要删除）
//public virtual async Task<object?> ExecuteAsync(DynamicContext context)
//{
// MethodDetails md = MethodDetails;
// object? result = null;
// if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
// {
// if (md.ExplicitDatas.Length == 0)
// {
// if (md.ReturnType == typeof(void))
// {
// ((Action<object>)del).Invoke(md.ActingInstance);
// }
// else if (md.ReturnType == typeof(Task<FlipflopContext>))
// {
// // 调用委托并获取结果
// FlipflopContext flipflopContext = await ((Func<object, Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance);
// if (flipflopContext != null)
// {
// if (flipflopContext.State == FfState.Cancel)
// {
// throw new Exception("this async task is cancel.");
// }
// else
// {
// if (flipflopContext.State == FfState.Succeed)
// {
// CurrentState = true;
// result = flipflopContext.Data;
// }
// else
// {
// CurrentState = false;
// }
// }
// }
// }
// else
// {
// result = ((Func<object, object>)del).Invoke(md.ActingInstance);
// }
// }
// else
// {
// object?[]? parameters = GetParameters(context, MethodDetails);
// if (md.ReturnType == typeof(void))
// {
// ((Action<object, object[]>)del).Invoke(md.ActingInstance, parameters);
// }
// else if (md.ReturnType == typeof(Task<FlipflopContext>))
// {
// // 调用委托并获取结果
// FlipflopContext flipflopContext = await ((Func<object, object[], Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance, parameters);
// if (flipflopContext != null)
// {
// if (flipflopContext.State == FfState.Cancel)
// {
// throw new Exception("取消此异步");
// }
// else
// {
// CurrentState = flipflopContext.State == FfState.Succeed;
// result = flipflopContext.Data;
// }
// }
// }
// else
// {
// result = ((Func<object, object[], object>)del).Invoke(md.ActingInstance, parameters);
// }
// }
// context.SetFlowData(result);
// }
// return result;
//}
#endregion
}
}
/* while (stack.Count > 0) // 循环中直到栈为空才会退出
{
// 从栈中弹出一个节点作为当前节点进行处理
var currentNode = stack.Pop();
if(currentNode is CompositeActionNode || currentNode is CompositeConditionNode)
{
currentNode.currentState = true;
}
else if (currentNode is CompositeConditionNode)
{
}
currentNode.Execute(context);
// 根据当前节点的执行结果选择下一节点集合
// 如果 currentState 为真，选择 TrueBranchNextNodes；否则选择 FalseBranchNextNodes
var nextNodes = currentNode.currentState ? currentNode.TrueBranchNextNodes
: currentNode.FalseBranchNextNodes;
// 将下一个节点集合中的所有节点逆序推入栈中
for (int i = nextNodes.Count - 1; i >= 0; i--)
{
stack.Push(nextNodes[i]);
}
}*/

68
Library.Core/Flow/NodeModel/SingleActionNode.cs Normal file
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namespace Serein.Flow.NodeModel
{
/// <summary>
/// 单动作节点（用于动作控件)
/// </summary>
public class SingleActionNode : NodeBase
{
//public override void Execute(DynamicContext context)
//{
// try
// {
// Execute(context, base.MethodDetails);
// CurrentState = true;
// }
// catch (Exception ex)
// {
// Debug.Write(ex.Message);
// CurrentState = false;
// }
//}
//public void Execute(DynamicContext context, MethodDetails md)
//{
// if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
// {
// object? result = null;
// if (md.ExplicitDatas.Length == 0)
// {
// if (md.ReturnType == typeof(void))
// {
// ((Action<object>)del).Invoke(md.ActingInstance);
// }
// else
// {
// result = ((Func<object, object>)del).Invoke(md.ActingInstance);
// }
// }
// else
// {
// object?[]? parameters = GetParameters(context, MethodDetails);
// if (md.ReturnType == typeof(void))
// {
// ((Action<object, object[]>)del).Invoke(md.ActingInstance, parameters);
// }
// else
// {
// result = ((Func<object, object[], object>)del).Invoke(md.ActingInstance, parameters);
// }
// }
// // 根据 ExplicitDatas.Length 判断委托类型
// //var action = (Action<object, object[]>)del;
// // 调用委托并获取结果
// // action.Invoke(MethodDetails.ActingInstance, parameters);
// //parameters = [md.ActingInstance, "", 123, ""];
// context.SetFlowData(result);
// }
//}
}
}

71
Library.Core/Flow/NodeModel/SingleConditionNode.cs Normal file
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using Serein.Flow.SerinExpression;
namespace Serein.Flow.NodeModel
{
/// <summary>
/// 条件节点（用于条件控件）
/// </summary>
public class SingleConditionNode : NodeBase
{
/// <summary>
/// 是否为自定义参数
/// </summary>
public bool IsCustomData { get; set; }
/// <summary>
/// 自定义参数值
/// </summary>
public object? CustomData { get; set; }
/// <summary>
/// 条件表达式
/// </summary>
public string Expression { get; set; }
public override object? Execute(DynamicContext context)
{
// 接收上一节点参数or自定义参数内容
object? result;
if (IsCustomData)
{
result = CustomData;
}
else
{
result = PreviousNode?.FlowData;
}
FlowState = SerinConditionParser.To(result, Expression);
Console.WriteLine($"{result} {Expression} -> " + FlowState);
return result;
}
//public override void Execute(DynamicContext context)
//{
// CurrentState = Judge(context, base.MethodDetails);
//}
//private bool Judge(DynamicContext context, MethodDetails md)
//{
// try
// {
// if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
// {
// object[] parameters = GetParameters(context, md);
// var temp = del.DynamicInvoke(parameters);
// //context.GetData(GetDyPreviousKey());
// return (bool)temp;
// }
// }
// catch (Exception ex)
// {
// Debug.Write(ex.Message);
// }
// return false;
//}
}
}

35
Library.Core/Flow/NodeModel/SingleExpOpNode.cs Normal file
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using Serein.Flow.SerinExpression;
namespace Serein.Flow.NodeModel
{
/// <summary>
/// Expression Operation - 表达式操作
/// </summary>
public class SingleExpOpNode : NodeBase
{
/// <summary>
/// 表达式
/// </summary>
public string Expression { get; set; }
public override object? Execute(DynamicContext context)
{
var data = PreviousNode?.FlowData;
var newData = SerinExpressionEvaluator.Evaluate(Expression, data, out bool isChange);
FlowState = true;
Console.WriteLine(newData);
if (isChange)
{
return newData;
}
else
{
return PreviousNode?.FlowData;
}
}
}
}

12
Library.Core/Flow/NodeModel/SingleFlipflopNode.cs Normal file
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namespace Serein.Flow.NodeModel
{
public class SingleFlipflopNode : NodeBase
{
public override object Execute(DynamicContext context)
{
throw new NotImplementedException("无法以非await/async的形式调用触发器");
}
}
}

337
Library.Core/Flow/SerinExpression/ConditionResolver.cs Normal file
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using System;
using System.Reflection;
using System.Runtime.InteropServices;
namespace Serein.Flow.SerinExpression
{
public abstract class ConditionResolver
{
public abstract bool Evaluate(object obj);
}
public class PassConditionResolver : ConditionResolver
{
public Operator Op { get; set; }
public override bool Evaluate(object obj)
{
return Op switch
{
Operator.Pass => true,
Operator.NotPass => false,
_ => throw new NotSupportedException("不支持的条件类型")
};
}
public enum Operator
{
Pass,
NotPass,
}
}
public class ValueTypeConditionResolver<T> : ConditionResolver where T : struct, IComparable<T>
{
public enum Operator
{
/// <summary>
/// 不进行任何操作
/// </summary>
Node,
/// <summary>
/// 大于
/// </summary>
GreaterThan,
/// <summary>
/// 小于
/// </summary>
LessThan,
/// <summary>
/// 等于
/// </summary>
Equal,
/// <summary>
/// 大于或等于
/// </summary>
GreaterThanOrEqual,
/// <summary>
/// 小于或等于
/// </summary>
LessThanOrEqual,
/// <summary>
/// 在两者之间
/// </summary>
InRange,
/// <summary>
/// 不在两者之间
/// </summary>
OutOfRange
}
public Operator Op { get; set; }
public T Value { get; set; }
public T RangeStart { get; set; }
public T RangeEnd { get; set; }
public string ArithmeticExpression { get; set; }
public override bool Evaluate(object obj)
{
if (obj is T typedObj)
{
double numericValue = Convert.ToDouble(typedObj);
if (!string.IsNullOrEmpty(ArithmeticExpression))
{
numericValue = SerinArithmeticExpressionEvaluator.Evaluate(ArithmeticExpression, numericValue);
}
T evaluatedValue = (T)Convert.ChangeType(numericValue, typeof(T));
return Op switch
{
Operator.GreaterThan => evaluatedValue.CompareTo(Value) > 0,
Operator.LessThan => evaluatedValue.CompareTo(Value) < 0,
Operator.Equal => evaluatedValue.CompareTo(Value) == 0,
Operator.GreaterThanOrEqual => evaluatedValue.CompareTo(Value) >= 0,
Operator.LessThanOrEqual => evaluatedValue.CompareTo(Value) <= 0,
Operator.InRange => evaluatedValue.CompareTo(RangeStart) >= 0 && evaluatedValue.CompareTo(RangeEnd) <= 0,
Operator.OutOfRange => evaluatedValue.CompareTo(RangeStart) < 0 || evaluatedValue.CompareTo(RangeEnd) > 0,
_ => throw new NotSupportedException("不支持的条件类型")
};
/* switch (Op)
{
case Operator.GreaterThan:
return evaluatedValue.CompareTo(Value) > 0;
case Operator.LessThan:
return evaluatedValue.CompareTo(Value) < 0;
case Operator.Equal:
return evaluatedValue.CompareTo(Value) == 0;
case Operator.GreaterThanOrEqual:
return evaluatedValue.CompareTo(Value) >= 0;
case Operator.LessThanOrEqual:
return evaluatedValue.CompareTo(Value) <= 0;
case Operator.InRange:
return evaluatedValue.CompareTo(RangeStart) >= 0 && evaluatedValue.CompareTo(RangeEnd) <= 0;
case Operator.OutOfRange:
return evaluatedValue.CompareTo(RangeStart) < 0 || evaluatedValue.CompareTo(RangeEnd) > 0;
}*/
}
return false;
}
}
public class BoolConditionResolver : ConditionResolver
{
public enum Operator
{
/// <summary>
/// 是
/// </summary>
Is
}
public Operator Op { get; set; }
public bool Value { get; set; }
public override bool Evaluate(object obj)
{
if (obj is bool boolObj)
{
return boolObj == Value;
/*switch (Op)
{
case Operator.Is:
return boolObj == Value;
}*/
}
return false;
}
}
public class StringConditionResolver : ConditionResolver
{
public enum Operator
{
/// <summary>
/// 出现过
/// </summary>
Contains,
/// <summary>
/// 没有出现过
/// </summary>
DoesNotContain,
/// <summary>
/// 相等
/// </summary>
Equal,
/// <summary>
/// 不相等
/// </summary>
NotEqual,
/// <summary>
/// 起始字符串等于
/// </summary>
StartsWith,
/// <summary>
/// 结束字符串等于
/// </summary>
EndsWith
}
public Operator Op { get; set; }
public string Value { get; set; }
public override bool Evaluate(object obj)
{
if (obj is string strObj)
{
return Op switch
{
Operator.Contains => strObj.Contains(Value),
Operator.DoesNotContain => !strObj.Contains(Value),
Operator.Equal => strObj == Value,
Operator.NotEqual => strObj != Value,
Operator.StartsWith => strObj.StartsWith(Value),
Operator.EndsWith => strObj.EndsWith(Value),
_ => throw new NotSupportedException("不支持的条件类型"),
};
/* switch (Op)
{
case Operator.Contains:
return strObj.Contains(Value);
case Operator.DoesNotContain:
return !strObj.Contains(Value);
case Operator.Equal:
return strObj == Value;
case Operator.NotEqual:
return strObj != Value;
case Operator.StartsWith:
return strObj.StartsWith(Value);
case Operator.EndsWith:
return strObj.EndsWith(Value);
}*/
}
return false;
}
}
public class MemberConditionResolver<T> : ConditionResolver where T : struct, IComparable<T>
{
//public string MemberPath { get; set; }
public ValueTypeConditionResolver<T>.Operator Op { get; set; }
public object? TargetObj { get; set; }
public T Value { get; set; }
public string ArithmeticExpression { get; set; }
public override bool Evaluate(object? obj)
{
//object? memberValue = GetMemberValue(obj, MemberPath);
if (TargetObj is T typedObj)
{
return new ValueTypeConditionResolver<T>
{
Op = Op,
Value = Value,
ArithmeticExpression = ArithmeticExpression,
}.Evaluate(typedObj);
}
return false;
}
//private object? GetMemberValue(object? obj, string memberPath)
//{
// string[] members = memberPath[1..].Split('.');
// foreach (var member in members)
// {
// if (obj == null) return null;
// Type type = obj.GetType();
// PropertyInfo? propertyInfo = type.GetProperty(member);
// FieldInfo? fieldInfo = type.GetField(member);
// if (propertyInfo != null)
// obj = propertyInfo.GetValue(obj);
// else if (fieldInfo != null)
// obj = fieldInfo.GetValue(obj);
// else
// throw new ArgumentException($"Member {member} not found in type {type.FullName}");
// }
// return obj;
//}
}
public class MemberStringConditionResolver : ConditionResolver
{
public string MemberPath { get; set; }
public StringConditionResolver.Operator Op { get; set; }
public string Value { get; set; }
public override bool Evaluate(object obj)
{
object memberValue = GetMemberValue(obj, MemberPath);
if (memberValue is string strObj)
{
return new StringConditionResolver
{
Op = Op,
Value = Value
}.Evaluate(strObj);
}
return false;
}
private object GetMemberValue(object? obj, string memberPath)
{
string[] members = memberPath[1..].Split('.');
foreach (var member in members)
{
if (obj == null) return null;
Type type = obj.GetType();
PropertyInfo? propertyInfo = type.GetProperty(member);
FieldInfo? fieldInfo = type.GetField(member);
if (propertyInfo != null)
obj = propertyInfo.GetValue(obj);
else if (fieldInfo != null)
obj = fieldInfo.GetValue(obj);
else
throw new ArgumentException($"Member {member} not found in type {type.FullName}");
}
return obj;
}
private static string GetArithmeticExpression(string part)
{
int startIndex = part.IndexOf('[');
int endIndex = part.IndexOf(']');
if (startIndex >= 0 && endIndex > startIndex)
{
return part.Substring(startIndex + 1, endIndex - startIndex - 1);
}
return null;
}
}
}

329
Library.Core/Flow/SerinExpression/SerinConditionParser.cs Normal file
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using System;
using System.Globalization;
using System.Linq;
using System.Reflection;
namespace Serein.Flow.SerinExpression;
public class SerinConditionParser
{
public static bool To<T>(T data, string expression)
{
try
{
return ConditionParse(data, expression).Evaluate(data);
}
catch (Exception ex)
{
Console.WriteLine(ex);
throw;
}
}
public static ConditionResolver ConditionParse(object data, string expression)
{
if (expression.StartsWith('.') /*&& expression.Contains('<') && expression.Contains('>')*/)
{
return ParseObjectExpression(data, expression);
}
else
{
return ParseSimpleExpression(data, expression);
}
bool ContainsArithmeticOperators(string expression)
{
return expression.Contains('+') || expression.Contains('-') || expression.Contains('*') || expression.Contains('/');
}
}
private static string GetArithmeticExpression(string part)
{
int startIndex = part.IndexOf('[');
int endIndex = part.IndexOf(']');
if (startIndex >= 0 && endIndex > startIndex)
{
return part.Substring(startIndex + 1, endIndex - startIndex - 1);
}
return null;
}
private static object? GetMemberValue(object? obj, string memberPath)
{
string[] members = memberPath[1..].Split('.');
foreach (var member in members)
{
if (obj == null) return null;
Type type = obj.GetType();
PropertyInfo? propertyInfo = type.GetProperty(member);
FieldInfo? fieldInfo = type.GetField(member);
if (propertyInfo != null)
obj = propertyInfo.GetValue(obj);
else if (fieldInfo != null)
obj = fieldInfo.GetValue(obj);
else
throw new ArgumentException($"Member {member} not found in type {type.FullName}");
}
return obj;
}
private static ConditionResolver ParseObjectExpression(object data, string expression)
{
var parts = expression.Split(' ');
string operatorStr = parts[0];
string valueStr = string.Join(' ', parts, 1, parts.Length - 1);
int typeStartIndex = expression.IndexOf('<');
int typeEndIndex = expression.IndexOf('>');
string memberPath;
Type type;
object? targetObj;
if ((typeStartIndex + typeStartIndex) == -2)
{
memberPath = operatorStr;
targetObj = GetMemberValue(data, operatorStr);
type = targetObj.GetType();
operatorStr = parts[1].ToLower();
valueStr = string.Join(' ', parts.Skip(2));
}
else
{
if (typeStartIndex >= typeEndIndex)
{
throw new ArgumentException("无效的表达式格式");
}
memberPath = expression.Substring(0, typeStartIndex).Trim();
string typeStr = expression.Substring(typeStartIndex + 1, typeEndIndex - typeStartIndex - 1).Trim().ToLower();
parts = expression.Substring(typeEndIndex + 1).Trim().Split(' ');
if (parts.Length == 3)
{
operatorStr = parts[1].ToLower();
valueStr = string.Join(' ', parts.Skip(2));
}
else
{
operatorStr = parts[0].ToLower();
valueStr = string.Join(' ', parts.Skip(1));
}
targetObj = GetMemberValue(data, memberPath);
Type? tempType = typeStr switch
{
"int" => typeof(int),
"double" => typeof(double),
"bool" => typeof(bool),
"string" => typeof(string),
_ => Type.GetType(typeStr)
};
type = tempType ?? throw new ArgumentException("对象表达式无效的类型声明");
}
if (type == typeof(int))
{
int value = int.Parse(valueStr, CultureInfo.InvariantCulture);
return new MemberConditionResolver<int>
{
TargetObj = targetObj,
//MemberPath = memberPath,
Op = ParseValueTypeOperator<int>(operatorStr),
Value = value,
ArithmeticExpression = GetArithmeticExpression(parts[0])
};
}
else if (type == typeof(double))
{
double value = double.Parse(valueStr, CultureInfo.InvariantCulture);
return new MemberConditionResolver<double>
{
//MemberPath = memberPath,
TargetObj = targetObj,
Op = ParseValueTypeOperator<double>(operatorStr),
Value = value,
ArithmeticExpression = GetArithmeticExpression(parts[0])
};
}
else if (type == typeof(bool))
{
return new MemberConditionResolver<bool>
{
//MemberPath = memberPath,
TargetObj = targetObj,
Op = (ValueTypeConditionResolver<bool>.Operator)ParseBoolOperator(operatorStr)
};
}
else if (type == typeof(string))
{
return new MemberStringConditionResolver
{
MemberPath = memberPath,
Op = ParseStringOperator(operatorStr),
Value = valueStr
};
}
throw new NotSupportedException($"Type {type} is not supported.");
}
private static ConditionResolver ParseSimpleExpression(object data, string expression)
{
if ("pass".Equals(expression.ToLower()))
{
return new PassConditionResolver
{
Op = PassConditionResolver.Operator.Pass,
};
}
else
{
if ("not pass".Equals(expression.ToLower()))
{
return new PassConditionResolver
{
Op = PassConditionResolver.Operator.NotPass,
};
}
if ("!pass".Equals(expression.ToLower()))
{
return new PassConditionResolver
{
Op = PassConditionResolver.Operator.NotPass,
};
}
}
var parts = expression.Split(' ');
if (parts.Length < 2)
throw new ArgumentException("无效的表达式格式。");
//string typeStr = parts[0];
string operatorStr = parts[0];
string valueStr = string.Join(' ', parts, 1, parts.Length - 1);
Type type = data.GetType();//Type.GetType(typeStr);
if (type == typeof(int))
{
var op = ParseValueTypeOperator<int>(operatorStr);
if (op == ValueTypeConditionResolver<int>.Operator.InRange || op == ValueTypeConditionResolver<int>.Operator.OutOfRange)
{
var temp = valueStr.Split('-');
if (temp.Length < 2)
throw new ArgumentException($"范围无效：{valueStr}。");
int rangeStart = int.Parse(temp[0], CultureInfo.InvariantCulture);
int rangeEnd = int.Parse(temp[1], CultureInfo.InvariantCulture);
return new ValueTypeConditionResolver<int>
{
Op = op,
RangeStart = rangeStart,
RangeEnd = rangeEnd,
ArithmeticExpression = GetArithmeticExpression(parts[0]),
};
}
else
{
int value = int.Parse(valueStr, CultureInfo.InvariantCulture);
return new ValueTypeConditionResolver<int>
{
Op = op,
Value = value,
ArithmeticExpression = GetArithmeticExpression(parts[0])
};
}
}
else if (type == typeof(double))
{
double value = double.Parse(valueStr, CultureInfo.InvariantCulture);
return new ValueTypeConditionResolver<double>
{
Op = ParseValueTypeOperator<double>(operatorStr),
Value = value,
ArithmeticExpression = GetArithmeticExpression(parts[0])
};
}
else if (type == typeof(bool))
{
bool value = bool.Parse(valueStr);
return new BoolConditionResolver
{
Op = ParseBoolOperator(operatorStr),
Value = value,
};
}
else if (type == typeof(string))
{
return new StringConditionResolver
{
Op = ParseStringOperator(operatorStr),
Value = valueStr
};
}
throw new NotSupportedException($"Type {type} is not supported.");
}
private static ValueTypeConditionResolver<T>.Operator ParseValueTypeOperator<T>(string operatorStr) where T : struct, IComparable<T>
{
return operatorStr switch
{
">" => ValueTypeConditionResolver<T>.Operator.GreaterThan,
"<" => ValueTypeConditionResolver<T>.Operator.LessThan,
"==" => ValueTypeConditionResolver<T>.Operator.Equal,
">=" => ValueTypeConditionResolver<T>.Operator.GreaterThanOrEqual,
"≥" => ValueTypeConditionResolver<T>.Operator.GreaterThanOrEqual,
"<=" => ValueTypeConditionResolver<T>.Operator.LessThanOrEqual,
"≤" => ValueTypeConditionResolver<T>.Operator.LessThanOrEqual,
"equals" => ValueTypeConditionResolver<T>.Operator.Equal,
"in" => ValueTypeConditionResolver<T>.Operator.InRange,
"!in" => ValueTypeConditionResolver<T>.Operator.OutOfRange,
_ => throw new ArgumentException($"Invalid operator {operatorStr} for value type.")
};
}
private static BoolConditionResolver.Operator ParseBoolOperator(string operatorStr)
{
return operatorStr switch
{
"is" => BoolConditionResolver.Operator.Is,
"==" => BoolConditionResolver.Operator.Is,
"equals" => BoolConditionResolver.Operator.Is,
//"isFalse" => BoolConditionNode.Operator.IsFalse,
_ => throw new ArgumentException($"Invalid operator {operatorStr} for bool type.")
};
}
private static StringConditionResolver.Operator ParseStringOperator(string operatorStr)
{
return operatorStr switch
{
"c" => StringConditionResolver.Operator.Contains,
"nc" => StringConditionResolver.Operator.DoesNotContain,
"sw" => StringConditionResolver.Operator.StartsWith,
"ew" => StringConditionResolver.Operator.EndsWith,
"contains" => StringConditionResolver.Operator.Contains,
"doesNotContain" => StringConditionResolver.Operator.DoesNotContain,
"equals" => StringConditionResolver.Operator.Equal,
"==" => StringConditionResolver.Operator.Equal,
"notEquals" => StringConditionResolver.Operator.NotEqual,
"!=" => StringConditionResolver.Operator.NotEqual,
"startsWith" => StringConditionResolver.Operator.StartsWith,
"endsWith" => StringConditionResolver.Operator.EndsWith,
_ => throw new ArgumentException($"Invalid operator {operatorStr} for string type.")
};
}
}

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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static Serein.Flow.NodeModel.SingleExpOpNode;
using static System.Runtime.InteropServices.JavaScript.JSType;
namespace Serein.Flow.SerinExpression
{
public class SerinArithmeticExpressionEvaluator
{
private static readonly DataTable table = new DataTable();
public static double Evaluate(string expression, double inputValue)
{
// 替换占位符@为输入值
expression = expression.Replace("@", inputValue.ToString());
try
{
// 使用 DataTable.Compute 方法计算表达式
var result = table.Compute(expression, string.Empty);
return Convert.ToDouble(result);
}
catch
{
throw new ArgumentException("Invalid arithmetic expression.");
}
}
}
public class SerinExpressionEvaluator
{
public static object Evaluate(string expression, object targetObJ,out bool IsChange)
{
var parts = expression.Split([' '], 2);
if (parts.Length != 2)
{
throw new ArgumentException("Invalid expression format.");
}
var operation = parts[0].ToLower();
var operand = parts[1][0] == '.' ? parts[1][1..]: parts[1];
var result = operation switch
{
"@num" => ComputedNumber(targetObJ, operand),
"@call" => InvokeMethod(targetObJ, operand),
"@get" => GetMember(targetObJ, operand),
"@set" => SetMember(targetObJ, operand),
_ => throw new NotSupportedException($"Operation {operation} is not supported.")
};
IsChange = operation switch
{
"@num" => true,
"@call" => true,
"@get" => true,
"@set" => false,
_ => throw new NotSupportedException($"Operation {operation} is not supported.")
};
return result;
}
private static readonly char[] separator = ['(', ')'];
private static readonly char[] separatorArray = [','];
private static object InvokeMethod(object target, string methodCall)
{
var methodParts = methodCall.Split(separator, StringSplitOptions.RemoveEmptyEntries);
if (methodParts.Length != 2)
{
throw new ArgumentException("Invalid method call format.");
}
var methodName = methodParts[0];
var parameterList = methodParts[1];
var parameters = parameterList.Split(separatorArray, StringSplitOptions.RemoveEmptyEntries)
.Select(p => p.Trim())
.ToArray();
var method = target.GetType().GetMethod(methodName);
if (method == null)
{
throw new ArgumentException($"Method {methodName} not found on target.");
}
var parameterValues = method.GetParameters()
.Select((p, index) => Convert.ChangeType(parameters[index], p.ParameterType))
.ToArray();
return method.Invoke(target, parameterValues);
}
private static object GetMember(object target, string memberPath)
{
var members = memberPath.Split('.');
foreach (var member in members)
{
if (target == null) return null;
var property = target.GetType().GetProperty(member);
if (property != null)
{
target = property.GetValue(target);
}
else
{
var field = target.GetType().GetField(member);
if (field != null)
{
target = field.GetValue(target);
}
else
{
throw new ArgumentException($"Member {member} not found on target.");
}
}
}
return target;
}
private static object SetMember(object target, string assignment)
{
var parts = assignment.Split(new[] { '=' }, 2);
if (parts.Length != 2)
{
throw new ArgumentException("Invalid assignment format.");
}
var memberPath = parts[0].Trim();
var value = parts[1].Trim();
var members = memberPath.Split('.');
for (int i = 0; i < members.Length - 1; i++)
{
var member = members[i];
var property = target.GetType().GetProperty(member);
if (property != null)
{
target = property.GetValue(target);
}
else
{
var field = target.GetType().GetField(member);
if (field != null)
{
target = field.GetValue(target);
}
else
{
throw new ArgumentException($"Member {member} not found on target.");
}
}
}
var lastMember = members.Last();
var lastProperty = target.GetType().GetProperty(lastMember);
if (lastProperty != null)
{
var convertedValue = Convert.ChangeType(value, lastProperty.PropertyType);
lastProperty.SetValue(target, convertedValue);
}
else
{
var lastField = target.GetType().GetField(lastMember);
if (lastField != null)
{
var convertedValue = Convert.ChangeType(value, lastField.FieldType);
lastField.SetValue(target, convertedValue);
}
else
{
throw new ArgumentException($"Member {lastMember} not found on target.");
}
}
return target;
}
private static double ComputedNumber(object value,string expression)
{
double numericValue = Convert.ToDouble(value);
if (!string.IsNullOrEmpty(expression))
{
numericValue = SerinArithmeticExpressionEvaluator.Evaluate(expression, numericValue);
}
return numericValue;
}
}
}

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using Serein.Library.IOC;
using System.Collections.Concurrent;
using System.Reflection;
namespace Serein.Flow.Tool;
public static class DelegateCache
{
/// <summary>
/// 委托缓存全局字典
/// </summary>
public static ConcurrentDictionary<string, Delegate> GlobalDicDelegates { get; } = new ConcurrentDictionary<string, Delegate>();
}
public static class DelegateGenerator
{
// 缓存的实例对象（键：类型名称）
public static ConcurrentDictionary<string, object> DynamicInstanceToType { get; } = new ConcurrentDictionary<string, object>();
// 缓存的实例对象 （键：生成的方法名称）
// public static ConcurrentDictionary<string, object> DynamicInstance { get; } = new ConcurrentDictionary<string, object>();
/// <summary>
/// 生成方法信息
/// </summary>
/// <param name="serviceContainer"></param>
/// <param name="type"></param>
/// <returns></returns>
public static ConcurrentDictionary<string, MethodDetails> GenerateMethodDetails(IServiceContainer serviceContainer, Type type)
{
var methodDetailsDictionary = new ConcurrentDictionary<string, MethodDetails>();
var assemblyName = type.Assembly.GetName().Name;
var methods = GetMethodsToProcess(type);
foreach (var method in methods)
{
var methodDetails = CreateMethodDetails(serviceContainer, type, method, assemblyName);
methodDetailsDictionary.TryAdd(methodDetails.MethodName, methodDetails);
}
return methodDetailsDictionary;
}
/// <summary>
/// 获取处理方法
/// </summary>
private static IEnumerable<MethodInfo> GetMethodsToProcess(Type type)
{
return type.GetMethods(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
.Where(m => m.GetCustomAttribute<MethodDetailAttribute>()?.Scan == true);
}
/// <summary>
/// 创建方法信息
/// </summary>
/// <returns></returns>
private static MethodDetails CreateMethodDetails(IServiceContainer serviceContainer, Type type, MethodInfo method, string assemblyName)
{
var methodName = method.Name;
var attribute = method.GetCustomAttribute<MethodDetailAttribute>();
var explicitDataOfParameters = GetExplicitDataOfParameters(method.GetParameters());
// 生成委托
var methodDelegate = GenerateMethodDelegate(type, // 方法所在的对象类型
method, // 方法信息
method.GetParameters(),// 方法参数
method.ReturnType);// 返回值
var dllTypeName = $"{assemblyName}.{type.Name}";
serviceContainer.Register(type);
object instance = serviceContainer.GetOrCreateServiceInstance(type);
var dllTypeMethodName = $"{assemblyName}.{type.Name}.{method.Name}";
return new MethodDetails
{
ActingInstanceType = type,
ActingInstance = instance,
MethodName = dllTypeMethodName,
MethodDelegate = methodDelegate,
MethodDynamicType = attribute.MethodDynamicType,
MethodLockName = attribute.LockName,
MethodTips = attribute.MethodTips,
ExplicitDatas = explicitDataOfParameters,
ReturnType = method.ReturnType,
};
}
private static ExplicitData[] GetExplicitDataOfParameters(ParameterInfo[] parameters)
{
return parameters.Select((it, index) =>
{
//Console.WriteLine($"{it.Name}-{it.HasDefaultValue}-{it.DefaultValue}");
string explicitTypeName = GetExplicitTypeName(it.ParameterType);
var items = GetExplicitItems(it.ParameterType, explicitTypeName);
if ("Bool".Equals(explicitTypeName)) explicitTypeName = "Select"; // 布尔值 转为 可选类型
return new ExplicitData
{
IsExplicitData = it.GetCustomAttribute(typeof(ExplicitAttribute)) is ExplicitAttribute,
Index = index,
ExplicitType = it.ParameterType,
ExplicitTypeName = explicitTypeName,
DataType = it.ParameterType,
ParameterName = it.Name,
DataValue = it.HasDefaultValue ? it.DefaultValue.ToString() : "",
Items = items.ToArray(),
};
}).ToArray();
}
private static string GetExplicitTypeName(Type type)
{
return type switch
{
Type t when t.IsEnum => "Select",
Type t when t == typeof(bool) => "Bool",
Type t when t == typeof(string) => "Value",
Type t when t == typeof(int) => "Value",
Type t when t == typeof(double) => "Value",
_ => "Value"
};
}
private static IEnumerable<string> GetExplicitItems(Type type, string explicitTypeName)
{
return explicitTypeName switch
{
"Select" => Enum.GetNames(type),
"Bool" => ["True", "False"],
_ => []
};
}
private static Delegate GenerateMethodDelegate(Type type, MethodInfo methodInfo, ParameterInfo[] parameters, Type returnType)
{
var parameterTypes = parameters.Select(p => p.ParameterType).ToArray();
var parameterCount = parameters.Length;
if (returnType == typeof(void))
{
if (parameterCount == 0)
{
// 无返回值，无参数
return ExpressionHelper.MethodCaller(type, methodInfo);
}
else
{
// 无返回值，有参数
return ExpressionHelper.MethodCaller(type, methodInfo, parameterTypes);
}
}
else if (returnType == typeof(Task<FlipflopContext>)) // 触发器
{
if (parameterCount == 0)
{
// 有返回值，无参数
return ExpressionHelper.MethodCallerAsync(type, methodInfo);
}
else
{
// 有返回值，有参数
return ExpressionHelper.MethodCallerAsync(type, methodInfo, parameterTypes);
}
}
else
{
if (parameterCount == 0)
{
// 有返回值，无参数
return ExpressionHelper.MethodCallerHaveResult(type, methodInfo);
}
else
{
// 有返回值，有参数
return ExpressionHelper.MethodCallerHaveResult(type, methodInfo, parameterTypes);
}
}
}
}

194
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namespace Serein.Flow.Tool
{
#region 锁、tsk工具 (已注释）
/*public class LockManager
{
private readonly ConcurrentDictionary<string, LockQueue> _locks = new ConcurrentDictionary<string, LockQueue>();
public void CreateLock(string name)
{
_locks.TryAdd(name, new LockQueue());
}
public async Task AcquireLockAsync(string name, CancellationToken cancellationToken = default)
{
if (!_locks.ContainsKey(name))
{
throw new ArgumentException($"Lock with name '{name}' does not exist.");
}
var lockQueue = _locks[name];
var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
lock (lockQueue.Queue)
{
lockQueue.Queue.Enqueue(tcs);
if (lockQueue.Queue.Count == 1)
{
tcs.SetResult(true);
}
}
await tcs.Task.ConfigureAwait(false);
// 处理取消操作
if (cancellationToken.CanBeCanceled)
{
cancellationToken.Register(() =>
{
lock (lockQueue.Queue)
{
if (lockQueue.Queue.Contains(tcs))
{
tcs.TrySetCanceled();
}
}
});
}
}
public void ReleaseLock(string name)
{
if (!_locks.ContainsKey(name))
{
throw new ArgumentException($"Lock with name '{name}' does not exist.");
}
var lockQueue = _locks[name];
lock (lockQueue.Queue)
{
if (lockQueue.Queue.Count > 0)
{
lockQueue.Queue.Dequeue();
if (lockQueue.Queue.Count > 0)
{
var next = lockQueue.Queue.Peek();
next.SetResult(true);
}
}
}
}
private class LockQueue
{
public Queue<TaskCompletionSource<bool>> Queue { get; } = new Queue<TaskCompletionSource<bool>>();
}
}
public interface ITaskResult
{
object Result { get; }
}
public class TaskResult<T> : ITaskResult
{
public TaskResult(T result)
{
Result = result;
}
public T Result { get; }
object ITaskResult.Result => Result;
}
public class DynamicTasks
{
private static readonly ConcurrentDictionary<string, Task<ITaskResult>> TaskGuidPairs = new();
public static Task<ITaskResult> GetTask(string Guid)
{
TaskGuidPairs.TryGetValue(Guid, out Task<ITaskResult> task);
return task;
}
public static bool AddTask<T>(string Guid, T result)
{
var task = Task.FromResult<ITaskResult>(new TaskResult<T>(result));
return TaskGuidPairs.TryAdd(Guid, task);
}
}
public class TaskNodeManager
{
private readonly ConcurrentDictionary<string, TaskQueue> _taskQueues = new ConcurrentDictionary<string, TaskQueue>();
public void CreateTaskNode(string name)
{
_taskQueues.TryAdd(name, new TaskQueue());
}
public async Task WaitForTaskNodeAsync(string name, CancellationToken cancellationToken = default)
{
if (!_taskQueues.ContainsKey(name))
{
throw new ArgumentException($"Task node with name '{name}' does not exist.");
}
var taskQueue = _taskQueues[name];
var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
lock (taskQueue.Queue)
{
taskQueue.Queue.Enqueue(tcs);
if (taskQueue.Queue.Count == 1)
{
tcs.SetResult(true);
}
}
await tcs.Task.ConfigureAwait(false);
// 处理取消操作
if (cancellationToken.CanBeCanceled)
{
cancellationToken.Register(() =>
{
lock (taskQueue.Queue)
{
if (taskQueue.Queue.Contains(tcs))
{
tcs.TrySetCanceled();
}
}
});
}
}
public void CompleteTaskNode(string name)
{
if (!_taskQueues.ContainsKey(name))
{
throw new ArgumentException($"Task node with name '{name}' does not exist.");
}
var taskQueue = _taskQueues[name];
lock (taskQueue.Queue)
{
if (taskQueue.Queue.Count > 0)
{
taskQueue.Queue.Dequeue();
if (taskQueue.Queue.Count > 0)
{
var next = taskQueue.Queue.Peek();
next.SetResult(true);
}
}
}
}
private class TaskQueue
{
public Queue<TaskCompletionSource<bool>> Queue { get; } = new Queue<TaskCompletionSource<bool>>();
}
}*/
#endregion
}

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using System.Collections.Concurrent;
using System.Linq.Expressions;
using System.Reflection;
namespace Serein.Flow.Tool
{
/// <summary>
/// 对于实例创建的表达式树反射
/// </summary>
public static class ExpressionHelper
{
/// <summary>
/// 缓存表达式树反射方法
/// </summary>
private static ConcurrentDictionary<string, Delegate> Cache { get; } = new ConcurrentDictionary<string, Delegate>();
public static List<string> GetCacheKey()
{
return [.. Cache.Keys];
}
#region 基于类型的表达式反射构建委托
#region 属性、字段的委托创建（表达式反射）
/// <summary>
/// 动态获取属性值
/// </summary>
public static Delegate PropertyGetter(Type type, string propertyName)
{
string cacheKey = $"{type.FullName}.{propertyName}.Getter";
return Cache.GetOrAdd(cacheKey, _ => CreateGetterDelegate(type, propertyName));
}
/// <summary>
/// 动态获取属性值
/// </summary>
private static Delegate CreateGetterDelegate(Type type, string propertyName)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var property = Expression.Property(Expression.Convert(parameter, type), propertyName);
var lambda = Expression.Lambda(Expression.Convert(property, typeof(object)), parameter);
return lambda.Compile();
}
/// <summary>
/// 动态设置属性值
/// </summary>
public static Delegate PropertySetter(Type type, string propertyName)
{
string cacheKey = $"{type.FullName}.{propertyName}.Setter";
return Cache.GetOrAdd(cacheKey, _ => CreateSetterDelegate(type, propertyName));
}
/// <summary>
/// 动态设置属性值
/// </summary>
private static Delegate CreateSetterDelegate(Type type, string propertyName)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var value = Expression.Parameter(typeof(object), "value");
var property = Expression.Property(Expression.Convert(parameter, type), propertyName);
var assign = Expression.Assign(property, Expression.Convert(value, property.Type));
var lambda = Expression.Lambda(assign, parameter, value);
return lambda.Compile();
}
/// <summary>
/// 动态获取字段值
/// </summary>
public static Delegate FieldGetter(Type type, string fieldName)
{
string cacheKey = $"{type.FullName}.{fieldName}.FieldGetter";
return Cache.GetOrAdd(cacheKey, _ => CreateFieldGetterDelegate(type, fieldName));
}
/// <summary>
/// 动态获取字段值
/// </summary>
private static Delegate CreateFieldGetterDelegate(Type type, string fieldName)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var field = Expression.Field(Expression.Convert(parameter, type), fieldName);
var lambda = Expression.Lambda(Expression.Convert(field, typeof(object)), parameter);
return lambda.Compile();
}
/// <summary>
/// 动态设置字段值
/// </summary>
public static Delegate FieldSetter(Type type, string fieldName)
{
string cacheKey = $"{type.FullName}.{fieldName}.FieldSetter";
return Cache.GetOrAdd(cacheKey, _ => CreateFieldSetterDelegate(type, fieldName));
}
/// <summary>
/// 动态设置字段值
/// </summary>
private static Delegate CreateFieldSetterDelegate(Type type, string fieldName)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var value = Expression.Parameter(typeof(object), "value");
var field = Expression.Field(Expression.Convert(parameter, type), fieldName);
var assign = Expression.Assign(field, Expression.Convert(value, field.Type));
var lambda = Expression.Lambda(assign, parameter, value);
return lambda.Compile();
}
#endregion
/// <summary>
/// 表达式树构建无参数，无返回值方法
/// </summary>
public static Delegate MethodCaller(Type type, MethodInfo methodInfo)
{
string cacheKey = $"{type.FullName}.{methodInfo.Name}.MethodCaller";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate(type, methodInfo));
}
/// <summary>
/// 表达式树构建无参数，无返回值方法
/// </summary>
private static Delegate CreateMethodCallerDelegate(Type type, MethodInfo methodInfo)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var methodCall = Expression.Call(Expression.Convert(parameter, type), methodInfo);
var lambda = Expression.Lambda(methodCall, parameter);
// Action<object>
return lambda.Compile();
}
/// <summary>
/// 表达式树构建无参数，有返回值方法
/// </summary>
public static Delegate MethodCallerHaveResult(Type type, MethodInfo methodInfo)
{
string cacheKey = $"{type.FullName}.{methodInfo.Name}.MethodCallerHaveResult";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateHaveResult(type, methodInfo));
}
/// <summary>
/// 表达式树构建无参数，有返回值方法
/// </summary>
private static Delegate CreateMethodCallerDelegateHaveResult(Type type, MethodInfo methodInfo)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var methodCall = Expression.Call(Expression.Convert(parameter, type), methodInfo);
var lambda = Expression.Lambda(Expression.Convert(methodCall, typeof(object)), parameter);
// Func<object, object>
return lambda.Compile();
}
/// <summary>
/// 表达式树构建多个参数,无返回值的方法
/// </summary>
public static Delegate MethodCaller(Type type, MethodInfo methodInfo, params Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{methodInfo.Name}.MethodCaller";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate(type, methodInfo, parameterTypes));
}
/// <summary>
/// 表达式树构建多个参数,无返回值的方法
/// </summary>
private static Delegate CreateMethodCallerDelegate(Type type, MethodInfo methodInfo, Type[] parameterTypes)
{
/* var parameter = Expression.Parameter(typeof(object), "instance");
var arguments = parameterTypes.Select((t, i) => Expression.Parameter(typeof(object), $"arg{i}")).ToArray();
var convertedArguments = arguments.Select((arg, i) => Expression.Convert(arg, parameterTypes[i])).ToArray();
var methodCall = Expression.Call(Expression.Convert(parameter, type),
methodInfo,
convertedArguments);
var lambda = Expression.Lambda(methodCall, new[] { parameter }.Concat(arguments));
var tmpAction = lambda.Compile();
// Action<object, object[]>
return lambda.Compile();*/
var instanceParam = Expression.Parameter(typeof(object), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
// 创建参数表达式
var convertedArgs = parameterTypes.Select((paramType, index) =>
Expression.Convert(Expression.ArrayIndex(argsParam, Expression.Constant(index)), paramType)
).ToArray();
// 创建方法调用表达式
var methodCall = Expression.Call(
Expression.Convert(instanceParam, type),
methodInfo,
(Expression[])convertedArgs
);
// 创建 lambda 表达式
var lambda = Expression.Lambda(
methodCall,
instanceParam,
argsParam
);
// Func<object, object[], object>
return lambda.Compile();
}
/// <summary>
/// 表达式树构建多个参数,有返回值的方法
/// </summary>
public static Delegate MethodCallerHaveResult(Type type, MethodInfo methodInfo, Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{methodInfo.Name}.MethodCallerHaveResult";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateHaveResult(type, methodInfo, parameterTypes));
}
/// <summary>
/// 表达式树构建多个参数,有返回值的方法
/// </summary>
private static Delegate CreateMethodCallerDelegateHaveResult(Type type, MethodInfo methodInfo, Type[] parameterTypes)
{
/*var instanceParam = Expression.Parameter(typeof(object), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
// 创建参数表达式
var convertedArgs = parameterTypes.Select((paramType, index) =>
Expression.Convert(Expression.ArrayIndex(argsParam, Expression.Constant(index)), paramType)
).ToArray();
// 创建方法调用表达式
var methodCall = Expression.Call(
Expression.Convert(instanceParam, type),
methodInfo,
convertedArgs
);
// 创建 lambda 表达式
var lambda = Expression.Lambda(
Expression.Convert(methodCall, typeof(object)),
instanceParam,
argsParam
);
// Func<object, object[], object>
return lambda.Compile();*/
var instanceParam = Expression.Parameter(typeof(object), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
// 创建参数表达式
var convertedArgs = parameterTypes.Select((paramType, index) =>
Expression.Convert(Expression.ArrayIndex(argsParam, Expression.Constant(index)), paramType)
).ToArray();
// 创建方法调用表达式
var methodCall = Expression.Call(
Expression.Convert(instanceParam, type),
methodInfo,
convertedArgs
);
// 创建 lambda 表达式
var lambda = Expression.Lambda<Func<object, object[], object>>(
Expression.Convert(methodCall, typeof(object)),
instanceParam,
argsParam
);
//var resule = task.DynamicInvoke((object)[Activator.CreateInstance(type), [new DynamicContext(null)]]);
return lambda.Compile();
}
/// <summary>
/// 表达式树构建无参数，有返回值(Task<object>)的方法（触发器）
/// </summary>
public static Delegate MethodCallerAsync(Type type, MethodInfo methodInfo)
{
string cacheKey = $"{type.FullName}.{methodInfo.Name}.MethodCallerAsync";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateAsync(type, methodInfo));
}
/// <summary>
/// 表达式树构建无参数，有返回值(Task<object>)的方法（触发器）
/// </summary>
private static Delegate CreateMethodCallerDelegateAsync(Type type, MethodInfo methodInfo)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var methodCall = Expression.Call(Expression.Convert(parameter, type), methodInfo);
var lambda = Expression.Lambda<Func<object, Task<object>>>(
Expression.Convert(methodCall, typeof(Task<object>)), parameter);
// Func<object, Task<object>>
return lambda.Compile();
}
/// <summary>
/// 表达式树构建多个参数，有返回值(Task-object)的方法（触发器）
/// </summary>
public static Delegate MethodCallerAsync(Type type, MethodInfo method, params Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{method.Name}.MethodCallerAsync";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateAsync(type, method, parameterTypes));
}
/// <summary>
/// 表达式树构建多个参数，有返回值(Task<object>)的方法（触发器）
/// </summary>
private static Delegate CreateMethodCallerDelegateAsync(Type type, MethodInfo methodInfo, Type[] parameterTypes)
{
var instanceParam = Expression.Parameter(typeof(object), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
// 创建参数表达式
var convertedArgs = parameterTypes.Select((paramType, index) =>
Expression.Convert(Expression.ArrayIndex(argsParam, Expression.Constant(index)),paramType)
).ToArray();
// 创建方法调用表达式
var methodCall = Expression.Call(
Expression.Convert(instanceParam, type),
methodInfo,
(Expression[])convertedArgs
);
// 创建 lambda 表达式
var lambda = Expression.Lambda<Func<object, object[], Task<FlipflopContext>>>(
Expression.Convert(methodCall, typeof(Task<FlipflopContext>)),
instanceParam,
argsParam
);
//var resule = task.DynamicInvoke((object)[Activator.CreateInstance(type), [new DynamicContext(null)]]);
return lambda.Compile();
}
#region 单参数
/// <summary>
/// 表达式树构建单参数,无返回值的方法
/// </summary>
public static Delegate MethodCaller(Type type, string methodName, Type parameterType)
{
string cacheKey = $"{type.FullName}.{methodName}.MethodCallerWithParam";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate(type, methodName, parameterType));
}
/// <summary>
/// 表达式树构建单参数,无返回值的方法
/// </summary>
private static Delegate CreateMethodCallerDelegate(Type type, string methodName, Type parameterType)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var argument = Expression.Parameter(typeof(object), "argument");
var methodCall = Expression.Call(Expression.Convert(parameter, type),
type.GetMethod(methodName, [parameterType])!,
Expression.Convert(argument, parameterType));
var lambda = Expression.Lambda(methodCall, parameter, argument);
return lambda.Compile();
}
/// <summary>
/// 表达式树构建单参数,有返回值的方法
/// </summary>
public static Delegate MethodCallerWithResult(Type type, string methodName, Type parameterType, Type returnType)
{
string cacheKey = $"{type.FullName}.{methodName}.MethodCallerWithResult";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateWithResult(type, methodName, parameterType, returnType));
}
/// <summary>
/// 表达式树构建单参数,有返回值的方法
/// </summary>
private static Delegate CreateMethodCallerDelegateWithResult(Type type, string methodName, Type parameterType, Type returnType)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var argument = Expression.Parameter(typeof(object), "argument");
var methodCall = Expression.Call(Expression.Convert(parameter, type),
type.GetMethod(methodName, [parameterType])!,
Expression.Convert(argument, parameterType));
var lambda = Expression.Lambda(Expression.Convert(methodCall, typeof(object)), parameter, argument);
return lambda.Compile();
}
#endregion
#endregion
#region 泛型表达式反射构建方法（已注释）
/*
/// <summary>
/// 动态获取属性值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TProperty"></typeparam>
/// <param name="propertyName"></param>
/// <returns></returns>
public static Func<T, TProperty> PropertyGetter<T, TProperty>(string propertyName)
{
string cacheKey = $"{typeof(T).FullName}.{propertyName}.Getter";
return (Func<T, TProperty>)Cache.GetOrAdd(cacheKey, _ => CreateGetterDelegate<T, TProperty>(propertyName));
}
private static Func<T, TProperty> CreateGetterDelegate<T, TProperty>(string propertyName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var property = Expression.Property(parameter, propertyName);
var lambda = Expression.Lambda<Func<T, TProperty>>(property, parameter);
return lambda.Compile();
}
/// <summary>
/// 动态设置属性值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TProperty"></typeparam>
/// <param name="propertyName"></param>
/// <returns></returns>
public static Action<T, TProperty> PropertySetter<T, TProperty>(string propertyName)
{
string cacheKey = $"{typeof(T).FullName}.{propertyName}.Setter";
return (Action<T, TProperty>)Cache.GetOrAdd(cacheKey, _ => CreateSetterDelegate<T, TProperty>(propertyName));
}
private static Action<T, TProperty> CreateSetterDelegate<T, TProperty>(string propertyName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var value = Expression.Parameter(typeof(TProperty), "value");
var property = Expression.Property(parameter, propertyName);
var assign = Expression.Assign(property, value);
var lambda = Expression.Lambda<Action<T, TProperty>>(assign, parameter, value);
return lambda.Compile();
}
/// <summary>
/// 动态获取字段值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TField"></typeparam>
/// <param name="fieldName"></param>
/// <returns></returns>
public static Func<T, TField> FieldGetter<T, TField>(string fieldName)
{
string cacheKey = $"{typeof(T).FullName}.{fieldName}.FieldGetter";
return (Func<T, TField>)Cache.GetOrAdd(cacheKey, _ => CreateFieldGetterDelegate<T, TField>(fieldName));
}
private static Func<T, TField> CreateFieldGetterDelegate<T, TField>(string fieldName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var field = Expression.Field(parameter, fieldName);
var lambda = Expression.Lambda<Func<T, TField>>(field, parameter);
return lambda.Compile();
}
/// <summary>
/// 动态设置字段值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TField"></typeparam>
/// <param name="fieldName"></param>
/// <returns></returns>
public static Action<T, TField> FieldSetter<T, TField>(string fieldName)
{
string cacheKey = $"{typeof(T).FullName}.{fieldName}.FieldSetter";
return (Action<T, TField>)Cache.GetOrAdd(cacheKey, _ => CreateFieldSetterDelegate<T, TField>(fieldName));
}
private static Action<T, TField> CreateFieldSetterDelegate<T, TField>(string fieldName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var value = Expression.Parameter(typeof(TField), "value");
var field = Expression.Field(parameter, fieldName);
var assign = Expression.Assign(field, value);
var lambda = Expression.Lambda<Action<T, TField>>(assign, parameter, value);
return lambda.Compile();
}
/// <summary>
/// 动态调用无参数方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="methodName"></param>
/// <returns></returns>
public static Action<T> MethodCaller<T>(string methodName)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCaller";
return (Action<T>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate<T>(methodName));
}
private static Action<T> CreateMethodCallerDelegate<T>(string methodName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var methodCall = Expression.Call(parameter, typeof(T).GetMethod(methodName));
var lambda = Expression.Lambda<Action<T>>(methodCall, parameter);
return lambda.Compile();
}
/// <summary>
/// 动态调用无参有返回值方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="methodName"></param>
/// <returns></returns>
public static Func<T, TResult> MethodCallerHaveResul<T, TResult>(string methodName)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCaller";
return (Func<T, TResult>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateHaveResult<T, TResult>(methodName));
}
private static Func<T, TResult> CreateMethodCallerDelegateHaveResult<T, TResult>(string methodName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var methodCall = Expression.Call(parameter, typeof(T).GetMethod(methodName));
var lambda = Expression.Lambda<Func<T, TResult>>(methodCall, parameter);
return lambda.Compile();
}
/// <summary>
/// 动态调用单参数无返回值的方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TParam"></typeparam>
/// <param name="methodName"></param>
/// <returns></returns>
public static Action<T, TParam> MethodCaller<T, TParam>(string methodName)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCallerWithParam";
return (Action<T, TParam>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate<T, TParam>(methodName));
}
private static Action<T, TParam> CreateMethodCallerDelegate<T, TParam>(string methodName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var argument = Expression.Parameter(typeof(TParam), "argument");
var methodCall = Expression.Call(parameter, typeof(T).GetMethod(methodName), argument);
var lambda = Expression.Lambda<Action<T, TParam>>(methodCall, parameter, argument);
return lambda.Compile();
}
/// <summary>
/// 动态调用单参数有返回值的方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TParam"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="methodName"></param>
/// <returns></returns>
public static Func<T, TParam, TResult> MethodCallerWithResult<T, TParam, TResult>(string methodName)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCallerWithResult";
return (Func<T, TParam, TResult>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate<T, TParam, TResult>(methodName));
}
private static Func<T, TParam, TResult> CreateMethodCallerDelegate<T, TParam, TResult>(string methodName)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var argument = Expression.Parameter(typeof(TParam), "argument");
var methodCall = Expression.Call(parameter, typeof(T).GetMethod(methodName), argument);
var lambda = Expression.Lambda<Func<T, TParam, TResult>>(methodCall, parameter, argument);
return lambda.Compile();
}
/// <summary>
/// 动态调用多参无返回值的方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="methodName"></param>
/// <param name="parameterTypes"></param>
/// <returns></returns>
public static Action<T, object[]> MethodCaller<T>(string methodName, params Type[] parameterTypes)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCaller";
return (Action<T, object[]>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate<T>(methodName, parameterTypes));
}
private static Action<T, object[]> CreateMethodCallerDelegate<T>(string methodName, Type[] parameterTypes)
{
var parameter = Expression.Parameter(typeof(T), "instance");
var arguments = parameterTypes.Select((type, index) =>
Expression.Parameter(typeof(object), $"arg{index}")
).ToList();
var convertedArguments = arguments.Select((arg, index) =>
Expression.Convert(arg, parameterTypes[index])
).ToList();
var methodInfo = typeof(T).GetMethod(methodName, parameterTypes);
if (methodInfo == null)
{
throw new ArgumentException($"Method '{methodName}' not found in type '{typeof(T).FullName}' with given parameter types.");
}
var methodCall = Expression.Call(parameter, methodInfo, convertedArguments);
var lambda = Expression.Lambda<Action<T, object[]>>(methodCall, new[] { parameter }.Concat(arguments));
return lambda.Compile();
}
/// <summary>
/// 动态调用多参有返回值的方法
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="methodName"></param>
/// <param name="parameterTypes"></param>
/// <returns></returns>
public static Func<T, object[], TResult> MethodCallerHaveResult<T, TResult>(string methodName, Type[] parameterTypes)
{
string cacheKey = $"{typeof(T).FullName}.{methodName}.MethodCallerHaveResult";
return (Func<T, object[], TResult>)Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate<T, TResult>(methodName, parameterTypes));
}
private static Func<T, object[], TResult> CreateMethodCallerDelegate<T, TResult>(string methodName, Type[] parameterTypes)
{
var instanceParam = Expression.Parameter(typeof(T), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
var convertedArgs = new Expression[parameterTypes.Length];
for (int i = 0; i < parameterTypes.Length; i++)
{
var index = Expression.Constant(i);
var argType = parameterTypes[i];
var arrayIndex = Expression.ArrayIndex(argsParam, index);
var convertedArg = Expression.Convert(arrayIndex, argType);
convertedArgs[i] = convertedArg;
}
var methodInfo = typeof(T).GetMethod(methodName, parameterTypes);
if (methodInfo == null)
{
throw new ArgumentException($"Method '{methodName}' not found in type '{typeof(T).FullName}' with given parameter types.");
}
var methodCall = Expression.Call(instanceParam, methodInfo, convertedArgs);
var lambda = Expression.Lambda<Func<T, object[], TResult>>(methodCall, instanceParam, argsParam);
return lambda.Compile();
}
*/
#endregion
#region 暂时不删（已注释）
/* /// <summary>
/// 表达式树构建多个参数,有返回值的方法
/// </summary>
public static Delegate MethodCallerHaveResult(Type type, string methodName, Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{methodName}.MethodCallerHaveResult";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateHaveResult(type, methodName, parameterTypes));
}
private static Delegate CreateMethodCallerDelegateHaveResult(Type type, string methodName, Type[] parameterTypes)
{
var instanceParam = Expression.Parameter(typeof(object), "instance");
var argsParam = Expression.Parameter(typeof(object[]), "args");
var convertedArgs = parameterTypes.Select((paramType, index) =>
Expression.Convert(Expression.ArrayIndex(argsParam, Expression.Constant(index)), paramType)
).ToArray();
var methodCall = Expression.Call(Expression.Convert(instanceParam, type), type.GetMethod(methodName, parameterTypes), convertedArgs);
var lambda = Expression.Lambda(Expression.Convert(methodCall, typeof(object)), instanceParam, argsParam);
return lambda.Compile();
}*/
/*/// <summary>
/// 表达式反射 构建 无返回值、无参数 的委托
/// </summary>
/// <param name="type"></param>
/// <param name="methodName"></param>
/// <param name="parameterTypes"></param>
/// <returns></returns>
public static Delegate MethodCaller(Type type, string methodName, Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{methodName}.{string.Join(",", parameterTypes.Select(t => t.FullName))}.MethodCaller";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegate(type, methodName, parameterTypes));
}
/// <summary>
/// 表达式反射 构建 无返回值、无参数 的委托
/// </summary>
/// <param name="type"></param>
/// <param name="methodName"></param>
/// <param name="parameterTypes"></param>
/// <returns></returns>
private static Delegate CreateMethodCallerDelegate(Type type, string methodName, Type[] parameterTypes)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var arguments = parameterTypes.Select((paramType, index) => Expression.Parameter(paramType, $"param{index}")).ToArray();
var methodCall = Expression.Call(Expression.Convert(parameter, type), type.GetMethod(methodName, parameterTypes), arguments);
var delegateType = Expression.GetActionType(new[] { typeof(object) }.Concat(parameterTypes).ToArray());
var lambda = Expression.Lambda(delegateType, methodCall, new[] { parameter }.Concat(arguments).ToArray());
return lambda.Compile();
}
*/
/*public static Delegate MethodCallerHaveResult(Type type, string methodName, Type returnType, Type[] parameterTypes)
{
string cacheKey = $"{type.FullName}.{methodName}.{string.Join(",", parameterTypes.Select(t => t.FullName))}.MethodCallerHaveResult";
return Cache.GetOrAdd(cacheKey, _ => CreateMethodCallerDelegateHaveResult(type, methodName, returnType, parameterTypes));
}
private static Delegate CreateMethodCallerDelegateHaveResult(Type type, string methodName, Type returnType, Type[] parameterTypes)
{
var parameter = Expression.Parameter(typeof(object), "instance");
var arguments = parameterTypes.Select((paramType, index) => Expression.Parameter(paramType, $"param{index}")).ToArray();
var methodCall = Expression.Call(Expression.Convert(parameter, type), type.GetMethod(methodName, parameterTypes), arguments);
var delegateType = Expression.GetFuncType(new[] { typeof(object) }.Concat(parameterTypes).Concat(new[] { typeof(object) }).ToArray());
var lambda = Expression.Lambda(delegateType, Expression.Convert(methodCall, typeof(object)), new[] { parameter }.Concat(arguments).ToArray());
return lambda.Compile();
}
*/
#endregion
}
}

80
Library.Core/Flow/Tool/TcsSignal.cs Normal file
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@@ -0,0 +1,80 @@
using System.Collections.Concurrent;
namespace Serein.Flow.Tool
{
public class TcsSignalException : Exception
{
public FfState FfState { get; set; }
public TcsSignalException(string? message) : base(message)
{
FfState = FfState.Cancel;
}
}
public class TcsSignal<TSignal> where TSignal : struct, Enum
{
public ConcurrentDictionary<TSignal, Stack<TaskCompletionSource<object>>> TcsEvent { get; } = new();
// public object tcsObj = new object();
public bool TriggerSignal<T>(TSignal signal, T state)
{
if (TcsEvent.TryRemove(signal, out var waitTcss))
{
while (waitTcss.Count > 0)
{
waitTcss.Pop().SetResult(state);
}
return true;
}
return false;
}
public TaskCompletionSource<object> CreateTcs(TSignal signal)
{
var tcs = new TaskCompletionSource<object>();
TcsEvent.GetOrAdd(signal, _ => new Stack<TaskCompletionSource<object>>()).Push(tcs);
return tcs;
}
//public TaskCompletionSource<object> GetOrCreateTcs(TSignal signal)
//{
// lock (tcsObj)
// {
// var tcs = TcsEvent.GetOrAdd(signal, _ => new TaskCompletionSource<object>());
// if (tcs.Task.IsCompleted)
// {
// TcsEvent.TryRemove(signal, out _);
// tcs = new TaskCompletionSource<object>();
// TcsEvent[signal] = tcs;
// }
// return tcs;
// }
//}
public void CancelTask()
{
lock(TcsEvent)
{
foreach (var tcss in TcsEvent.Values)
{
while (tcss.Count > 0)
{
tcss.Pop().SetException(new TcsSignalException("Task Cancel"));
}
}
TcsEvent.Clear();
}
}
}
}