mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
560 lines
24 KiB
C#
560 lines
24 KiB
C#
using Newtonsoft.Json;
|
||
using Newtonsoft.Json.Linq;
|
||
using Serein.Library.Api;
|
||
using Serein.Library.Attributes;
|
||
using Serein.Library.Entity;
|
||
using Serein.Library.Enums;
|
||
using Serein.Library.Ex;
|
||
using Serein.Library.Utils;
|
||
using Serein.NodeFlow.Tool;
|
||
using Serein.NodeFlow.Tool.SereinExpression;
|
||
using System;
|
||
using System.Collections;
|
||
using System.Collections.Generic;
|
||
using System.Linq;
|
||
using System.Linq.Expressions;
|
||
using System.Net.Http.Headers;
|
||
using System.Reflection;
|
||
using System.Text;
|
||
using System.Threading.Tasks;
|
||
using System.Xml.Linq;
|
||
using static Serein.Library.Utils.ChannelFlowInterrupt;
|
||
|
||
namespace Serein.NodeFlow.Base
|
||
{
|
||
|
||
/// <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 partial class NodeModelBase : IDynamicFlowNode
|
||
{
|
||
|
||
|
||
#region 调试中断
|
||
|
||
|
||
/// <summary>
|
||
/// 不再中断
|
||
/// </summary>
|
||
public void CancelInterrupt()
|
||
{
|
||
this.DebugSetting.InterruptClass = InterruptClass.None;
|
||
DebugSetting.CancelInterruptCallback?.Invoke();
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 导出/导入项目文件节点信息
|
||
|
||
internal abstract Parameterdata[] GetParameterdatas();
|
||
internal virtual NodeInfo ToInfo()
|
||
{
|
||
// if (MethodDetails == null) return null;
|
||
|
||
var trueNodes = SuccessorNodes[ConnectionType.IsSucceed].Select(item => item.Guid); // 真分支
|
||
var falseNodes = SuccessorNodes[ConnectionType.IsFail].Select(item => item.Guid);// 假分支
|
||
var errorNodes = SuccessorNodes[ConnectionType.IsError].Select(item => item.Guid);// 异常分支
|
||
var upstreamNodes = SuccessorNodes[ConnectionType.Upstream].Select(item => item.Guid);// 上游分支
|
||
|
||
// 生成参数列表
|
||
Parameterdata[] parameterData = GetParameterdatas();
|
||
|
||
return new NodeInfo
|
||
{
|
||
Guid = Guid,
|
||
MethodName = MethodDetails?.MethodName,
|
||
Label = DisplayName ?? "",
|
||
Type = this.GetType().ToString(),
|
||
TrueNodes = trueNodes.ToArray(),
|
||
FalseNodes = falseNodes.ToArray(),
|
||
UpstreamNodes = upstreamNodes.ToArray(),
|
||
ParameterData = parameterData.ToArray(),
|
||
ErrorNodes = errorNodes.ToArray(),
|
||
|
||
};
|
||
}
|
||
|
||
internal virtual NodeModelBase LoadInfo(NodeInfo nodeInfo)
|
||
{
|
||
this.Guid = nodeInfo.Guid;
|
||
if(this.MethodDetails is not null)
|
||
{
|
||
for (int i = 0; i < nodeInfo.ParameterData.Length; i++)
|
||
{
|
||
Parameterdata? pd = nodeInfo.ParameterData[i];
|
||
this.MethodDetails.ExplicitDatas[i].IsExplicitData = pd.State;
|
||
this.MethodDetails.ExplicitDatas[i].DataValue = pd.Value;
|
||
}
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 节点方法的执行
|
||
|
||
/// <summary>
|
||
/// 开始执行
|
||
/// </summary>
|
||
/// <param name="context"></param>
|
||
/// <returns></returns>
|
||
public async Task StartExecute(IDynamicContext context)
|
||
{
|
||
Stack<NodeModelBase> stack = new Stack<NodeModelBase>();
|
||
stack.Push(this);
|
||
var flowCts = context.Env.IOC.Get<CancellationTokenSource>(FlowStarter.FlipFlopCtsName);
|
||
while (stack.Count > 0 ) // 循环中直到栈为空才会退出循环
|
||
{
|
||
if(flowCts is not null)
|
||
{
|
||
if (flowCts.IsCancellationRequested)
|
||
break;
|
||
}
|
||
// 从栈中弹出一个节点作为当前节点进行处理
|
||
var currentNode = stack.Pop();
|
||
|
||
#region 执行相关
|
||
|
||
// 筛选出上游分支
|
||
var upstreamNodes = currentNode.SuccessorNodes[ConnectionType.Upstream].Where(
|
||
node => node.DebugSetting.IsEnable
|
||
).ToArray();
|
||
// 执行上游分支
|
||
foreach (var upstreamNode in upstreamNodes)
|
||
{
|
||
if (upstreamNode.DebugSetting.IsEnable)
|
||
{
|
||
if (upstreamNode.DebugSetting.InterruptClass != InterruptClass.None) // 执行触发前
|
||
{
|
||
var cancelType = await upstreamNode.DebugSetting.GetInterruptTask();
|
||
await Console.Out.WriteLineAsync($"[{upstreamNode.MethodDetails?.MethodName}]中断已{cancelType}，开始执行后继分支");
|
||
}
|
||
upstreamNode.PreviousNode = currentNode;
|
||
await upstreamNode.StartExecute(context); // 执行流程节点的上游分支
|
||
if (upstreamNode.NextOrientation == ConnectionType.IsError)
|
||
{
|
||
// 如果上游分支执行失败，不再继续执行
|
||
// 使上游节点（仅上游节点本身，不包含上游节点的后继节点）
|
||
// 具备通过抛出异常中断流程的能力
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// 上游分支执行完成，才执行当前节点
|
||
object? newFlowData = await currentNode.ExecutingAsync(context);
|
||
if (flowCts is null || flowCts.IsCancellationRequested || currentNode.NextOrientation == ConnectionType.None)
|
||
{
|
||
// 不再执行
|
||
break;
|
||
}
|
||
await RefreshFlowDataAndExpInterrupt(context, currentNode, newFlowData); // 执行当前节点后刷新数据
|
||
#endregion
|
||
|
||
|
||
#region 执行完成
|
||
|
||
// 选择后继分支
|
||
var nextNodes = currentNode.SuccessorNodes[currentNode.NextOrientation];
|
||
|
||
// 将下一个节点集合中的所有节点逆序推入栈中
|
||
for (int i = nextNodes.Count - 1; i >= 0; i--)
|
||
{
|
||
// 筛选出启用的节点的节点
|
||
if (nextNodes[i].DebugSetting.IsEnable)
|
||
{
|
||
nextNodes[i].PreviousNode = currentNode;
|
||
stack.Push(nextNodes[i]);
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 执行节点对应的方法
|
||
/// </summary>
|
||
/// <param name="context">流程上下文</param>
|
||
/// <returns>节点传回数据对象</returns>
|
||
public virtual async Task<object?> ExecutingAsync(IDynamicContext context)
|
||
{
|
||
#region 调试中断
|
||
|
||
if (DebugSetting.InterruptClass != InterruptClass.None) // 执行触发检查是否需要中断
|
||
{
|
||
var cancelType = await this.DebugSetting.GetInterruptTask(); // 等待中断结束
|
||
await Console.Out.WriteLineAsync($"[{this.MethodDetails?.MethodName}]中断已{cancelType}，开始执行后继分支");
|
||
}
|
||
|
||
#endregion
|
||
|
||
MethodDetails? md = MethodDetails;
|
||
//var del = md.MethodDelegate.Clone();
|
||
if (md is null)
|
||
{
|
||
throw new Exception($"节点{this.Guid}不存在方法信息，请检查是否需要重写节点的ExecutingAsync");
|
||
}
|
||
if (!context.Env.TryGetDelegateDetails(md.MethodName, out var dd))
|
||
{
|
||
throw new Exception($"节点{this.Guid}不存在对应委托");
|
||
}
|
||
md.ActingInstance ??= context.Env.IOC.Get(md.ActingInstanceType);
|
||
object instance = md.ActingInstance;
|
||
|
||
//bool haveParameter = md.ExplicitDatas.Length > 0;
|
||
//bool haveResult = md.ReturnType != typeof(void);
|
||
// Type? taskResult = null;
|
||
//bool isTask = md.ReturnType is not null && MethodDetailsHelper.IsGenericTask(md.ReturnType, out taskResult);
|
||
//bool isTaskHaveResult = taskResult is not null;
|
||
object? result = null;
|
||
|
||
//Console.WriteLine($"(isTask, isTaskHaveResult):{(isTask, isTaskHaveResult)}");
|
||
try
|
||
{
|
||
// Action/Func([方法作用的实例],[可能的参数值],[可能的返回值])
|
||
|
||
object?[]? args = GetParameters(context, this, md);
|
||
var delType = dd.EmitMethodType;
|
||
var del = dd.EmitDelegate;
|
||
if (delType == EmitHelper.EmitMethodType.HasResultTask && del is Func<object, object?[]?, Task<object?>> hasResultTask)
|
||
{
|
||
result = await hasResultTask(instance, args);
|
||
}
|
||
else if (delType == EmitHelper.EmitMethodType.Task && del is Func<object, object?[]?, Task> task)
|
||
{
|
||
await task.Invoke(instance, args);
|
||
result = null;
|
||
}
|
||
else if (delType == EmitHelper.EmitMethodType.Func && del is Func<object, object?[]?, object?> func)
|
||
{
|
||
result = func.Invoke(instance, args);
|
||
}
|
||
else
|
||
{
|
||
throw new NotImplementedException("构造委托无法正确调用");
|
||
}
|
||
|
||
//if (isTask)
|
||
//{
|
||
// // 异步方法（因为返回了Task，所以排除Action<>委托的可能）
|
||
// result = (haveParameter, isTaskHaveResult) switch
|
||
// {
|
||
// (false, false) => await ExecutionAsync((Func<object, Task>)del, instance), // 调用节点方法，返回方法传回类型
|
||
// (true, false) => await ExecutionAsync((Func<object, object?[]?, Task>)del, instance, parameters), // 调用节点方法，获取入参参数，返回方法返回类型
|
||
// (false, true) => await ExecutionAsync((Func<object, Task<object?>>)del, instance), // 调用节点方法，返回方法传回类型
|
||
// (true, true) => await ExecutionAsync((Func<object, object?[]?, Task<object?>>)del, instance, parameters), // 调用节点方法，获取入参参数，返回方法返回类型
|
||
// };
|
||
//}
|
||
//else
|
||
//{
|
||
// // 非异步方法
|
||
// result = (haveParameter, haveResult) switch
|
||
// {
|
||
// (false, false) => Execution((Action<object>)del, instance), // 调用节点方法，返回null
|
||
// (true, false) => Execution((Action<object, object?[]?>)del, instance, parameters), // 调用节点方法，返回null
|
||
// (false, true) => Execution((Func<object, object?>)del, instance), // 调用节点方法，返回方法传回类型
|
||
// (true, true) => Execution((Func<object, object?[]?, object?>)del, instance, parameters), // 调用节点方法，获取入参参数，返回方法返回类型
|
||
// };
|
||
//}
|
||
|
||
NextOrientation = ConnectionType.IsSucceed;
|
||
return result;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
await Console.Out.WriteLineAsync($"节点[{this.MethodDetails?.MethodName}]异常：" + ex.Message);
|
||
NextOrientation = ConnectionType.IsError;
|
||
RuningException = ex;
|
||
return null;
|
||
}
|
||
}
|
||
|
||
|
||
#region 节点转换的委托类型
|
||
public static object? Execution(Action<object> del, object instance)
|
||
{
|
||
del.Invoke(instance);
|
||
return null;
|
||
}
|
||
public static object? Execution(Action<object, object?[]?> del, object instance, object?[]? parameters)
|
||
{
|
||
del.Invoke(instance, parameters);
|
||
return null;
|
||
}
|
||
public static object? Execution(Func<object, object?> del, object instance)
|
||
{
|
||
return del.Invoke(instance);
|
||
}
|
||
public static object? Execution(Func<object, object?[]?, object?> del, object instance, object?[]? parameters)
|
||
{
|
||
return del.Invoke(instance, parameters);
|
||
}
|
||
|
||
|
||
public static async Task<object?> ExecutionAsync(Func<object, Task> del, object instance)
|
||
{
|
||
await del.Invoke(instance);
|
||
return null;
|
||
}
|
||
public static async Task<object?> ExecutionAsync(Func<object, object?[]?, Task> del, object instance, object?[]? parameters)
|
||
{
|
||
await del.Invoke(instance, parameters);
|
||
return null;
|
||
}
|
||
public static async Task<object?> ExecutionAsync(Func<object, Task<object?>> del, object instance)
|
||
{
|
||
return await del.Invoke(instance);
|
||
}
|
||
public static async Task<object?> ExecutionAsync(Func<object, object?[]?, Task<object?>> del, object instance, object?[]? parameters)
|
||
{
|
||
return await del.Invoke(instance, parameters);
|
||
}
|
||
#endregion
|
||
|
||
|
||
/// <summary>
|
||
/// 获取对应的参数数组
|
||
/// </summary>
|
||
public static object?[]? GetParameters(IDynamicContext context, NodeModelBase nodeModel, MethodDetails md)
|
||
{
|
||
// 用正确的大小初始化参数数组
|
||
if (md.ExplicitDatas.Length == 0)
|
||
{
|
||
return null;// md.ActingInstance
|
||
}
|
||
|
||
object?[]? parameters = new object[md.ExplicitDatas.Length];
|
||
var flowData = nodeModel.PreviousNode?.FlowData; // 当前传递的数据
|
||
var previousDataType = flowData?.GetType();
|
||
|
||
for (int i = 0; i < parameters.Length; i++)
|
||
{
|
||
|
||
object? inputParameter; // 存放解析的临时参数
|
||
var ed = md.ExplicitDatas[i]; // 方法入参描述
|
||
|
||
|
||
if (ed.IsExplicitData) // 判断是否使用显示的输入参数
|
||
{
|
||
if (ed.DataValue.StartsWith("@get", StringComparison.OrdinalIgnoreCase) && flowData is not null)
|
||
{
|
||
// 执行表达式从上一节点获取对象
|
||
inputParameter = SerinExpressionEvaluator.Evaluate(ed.DataValue, flowData, out _);
|
||
}
|
||
else
|
||
{
|
||
// 使用输入的固定值
|
||
inputParameter = ed.DataValue;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
inputParameter = flowData; // 使用上一节点的对象
|
||
}
|
||
|
||
// 存在转换器
|
||
if (ed.Convertor is not null)
|
||
{
|
||
if (Enum.TryParse(ed.ExplicitType, ed.DataValue, out var resultEnum))
|
||
{
|
||
var value = ed.Convertor(resultEnum);
|
||
if (value is not null)
|
||
{
|
||
parameters[i] = value;
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
throw new InvalidOperationException("转换器调用失败");
|
||
}
|
||
}
|
||
}
|
||
|
||
if ( ed.DataType != ed.ExplicitType) // 获取枚举转换器中记录的枚举
|
||
{
|
||
if (ed.ExplicitType.IsEnum && Enum.TryParse(ed.ExplicitType, ed.DataValue, out var resultEnum)) // 获取对应的枚举项
|
||
{
|
||
var type = EnumHelper.GetBoundValue(ed.ExplicitType, resultEnum, attr => attr.Value);
|
||
if(type is Type enumBindType && enumBindType is not null)
|
||
{
|
||
var value = context.Env.IOC.Instantiate(enumBindType);
|
||
if(value is not null)
|
||
{
|
||
parameters[i] = value;
|
||
continue;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
|
||
try
|
||
{
|
||
|
||
if (ed.DataType.IsValueType)
|
||
{
|
||
if (inputParameter is null)
|
||
{
|
||
parameters[i] = Activator.CreateInstance(ed.DataType);
|
||
}
|
||
else
|
||
{
|
||
string? valueStr = inputParameter?.ToString();
|
||
if (string.IsNullOrEmpty(valueStr))
|
||
{
|
||
parameters[i] = Activator.CreateInstance(ed.DataType);
|
||
}
|
||
else
|
||
{
|
||
parameters[i] = ed.DataType switch
|
||
{
|
||
Type t when t.IsEnum => Enum.Parse(ed.DataType, ed.DataValue),// 需要枚举
|
||
Type t when t == typeof(char) => char.Parse(valueStr),
|
||
Type t when t == typeof(bool) => bool.Parse(valueStr),
|
||
Type t when t == typeof(float) => float.Parse(valueStr),
|
||
Type t when t == typeof(decimal) => decimal.Parse(valueStr),
|
||
Type t when t == typeof(double) => double.Parse(valueStr),
|
||
Type t when t == typeof(sbyte) => sbyte.Parse(valueStr),
|
||
Type t when t == typeof(byte) => byte.Parse(valueStr),
|
||
Type t when t == typeof(short) => short.Parse(valueStr),
|
||
Type t when t == typeof(ushort) => ushort.Parse(valueStr),
|
||
Type t when t == typeof(int) => int.Parse(valueStr),
|
||
Type t when t == typeof(uint) => uint.Parse(valueStr),
|
||
Type t when t == typeof(long) => long.Parse(valueStr),
|
||
Type t when t == typeof(ulong) => ulong.Parse(valueStr),
|
||
Type t when t == typeof(nint) => nint.Parse(valueStr),
|
||
Type t when t == typeof(nuint) => nuint.Parse(valueStr),
|
||
_ => throw new Exception($"调用节点对应方法[{nodeModel.MethodDetails.MethodName}]时，遇到了未在预期内的值类型入参：{ed.DataType.FullName}"),
|
||
// Type t when Nullable.GetUnderlyingType(t) != null => inputParameter is null ? null : Convert.ChangeType(inputParameter, Nullable.GetUnderlyingType(t)),
|
||
};
|
||
}
|
||
|
||
}
|
||
}
|
||
else
|
||
{
|
||
parameters[i] = ed.DataType switch
|
||
{
|
||
Type t when t == typeof(IDynamicContext) => context, // 上下文
|
||
Type t when t == typeof(string) => inputParameter?.ToString(),
|
||
|
||
//Type t when t == typeof(DateTime) => string.IsNullOrEmpty(valueStr) ? 0 : DateTime.Parse(valueStr),
|
||
|
||
Type t when t == typeof(MethodDetails) => md, // 节点方法描述
|
||
Type t when t == typeof(NodeModelBase) => nodeModel, // 节点实体类
|
||
|
||
Type t when t.IsArray => (inputParameter as Array)?.Cast<object>().ToList(),
|
||
Type t when t.IsGenericType && t.GetGenericTypeDefinition() == typeof(List<>) => inputParameter,
|
||
_ => inputParameter,
|
||
// Type t when Nullable.GetUnderlyingType(t) != null => inputParameter is null ? null : Convert.ChangeType(inputParameter, Nullable.GetUnderlyingType(t)),
|
||
};
|
||
}
|
||
|
||
|
||
|
||
}
|
||
catch (Exception ex) // 节点参数类型转换异常
|
||
{
|
||
parameters[i] = new object();
|
||
Console.WriteLine(ex);
|
||
}
|
||
}
|
||
return parameters;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 更新节点数据，并检查监视表达式是否生效
|
||
/// </summary>
|
||
/// <param name="newData"></param>
|
||
public static async Task RefreshFlowDataAndExpInterrupt(IDynamicContext context,NodeModelBase nodeModel, object? newData = null)
|
||
{
|
||
string guid = nodeModel.Guid;
|
||
if(newData is not null)
|
||
{
|
||
await MonitorObjExpInterrupt(context, nodeModel, newData, 0); // 首先监视对象
|
||
await MonitorObjExpInterrupt(context, nodeModel, newData, 1); // 然后监视节点
|
||
nodeModel.FlowData = newData; // 替换数据
|
||
}
|
||
}
|
||
|
||
private static async Task MonitorObjExpInterrupt(IDynamicContext context, NodeModelBase nodeModel, object? data, int monitorType)
|
||
{
|
||
MonitorObjectEventArgs.ObjSourceType sourceType;
|
||
string? key;
|
||
if(monitorType == 0)
|
||
{
|
||
key = data?.GetType()?.FullName;
|
||
sourceType = MonitorObjectEventArgs.ObjSourceType.IOCObj;
|
||
}
|
||
else
|
||
{
|
||
key = nodeModel.Guid;
|
||
sourceType = MonitorObjectEventArgs.ObjSourceType.IOCObj;
|
||
}
|
||
if (string.IsNullOrEmpty(key))
|
||
{
|
||
return;
|
||
}
|
||
|
||
if (context.Env.CheckObjMonitorState(key, out List<string> exps)) // 如果新的数据处于查看状态，通知UI进行更新？交给运行环境判断？
|
||
{
|
||
context.Env.MonitorObjectNotification(nodeModel.Guid, data, sourceType); // 对象处于监视状态，通知UI更新数据显示
|
||
if (exps.Count > 0)
|
||
{
|
||
// 表达式环境下判断是否需要执行中断
|
||
bool isExpInterrupt = false;
|
||
string? exp = "";
|
||
// 判断执行监视表达式，直到为 true 时退出
|
||
for (int i = 0; i < exps.Count && !isExpInterrupt; i++)
|
||
{
|
||
exp = exps[i];
|
||
if (string.IsNullOrEmpty(exp)) continue;
|
||
isExpInterrupt = SereinConditionParser.To(data, exp);
|
||
}
|
||
|
||
if (isExpInterrupt) // 触发中断
|
||
{
|
||
InterruptClass interruptClass = InterruptClass.Branch; // 分支中断
|
||
if (context.Env.SetNodeInterrupt(nodeModel.Guid, interruptClass))
|
||
{
|
||
context.Env.TriggerInterrupt(nodeModel.Guid, exp, InterruptTriggerEventArgs.InterruptTriggerType.Exp);
|
||
var cancelType = await nodeModel.DebugSetting.GetInterruptTask();
|
||
await Console.Out.WriteLineAsync($"[{data}]中断已{cancelType}，开始执行后继分支");
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 释放对象
|
||
/// </summary>
|
||
public void ReleaseFlowData()
|
||
{
|
||
if (typeof(IDisposable).IsAssignableFrom(FlowData?.GetType()) && FlowData is IDisposable disposable)
|
||
{
|
||
disposable?.Dispose();
|
||
}
|
||
this.FlowData = null;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取节点数据
|
||
/// </summary>
|
||
/// <returns></returns>
|
||
public object? GetFlowData()
|
||
{
|
||
return this.FlowData;
|
||
}
|
||
#endregion
|
||
|
||
}
|
||
}
|
