mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
876 lines
34 KiB
C#
876 lines
34 KiB
C#
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using Serein.Library.Api;
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using Serein.Library.Attributes;
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using Serein.Library.Entity;
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using Serein.Library.Enums;
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using Serein.Library.Utils;
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using Serein.NodeFlow.Base;
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using Serein.NodeFlow.Model;
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using Serein.NodeFlow.Tool;
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using System.Collections.Concurrent;
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using System.Reflection;
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using static Serein.NodeFlow.FlowStarter;
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namespace Serein.NodeFlow
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{
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/*
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脱离wpf平台独立运行。
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加载文件。
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创建节点对象，设置节点属性，确定连接关系，设置起点。
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↓抽象↓
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wpf依赖于运行环境，而不是运行环境依赖于wpf。
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运行环境实现以下功能：
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①从项目文件加载数据，生成项目文件对象。
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②运行项目，调试项目，中止项目，终止项目。
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③自动包装数据类型，在上下文中传递数据。
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*/
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/// <summary>
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/// 运行环境
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/// </summary>
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public class FlowEnvironment : IFlowEnvironment
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{
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public FlowEnvironment()
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{
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ChannelFlowInterrupt = new ChannelFlowInterrupt();
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LoadedAssemblyPaths = new List<string>();
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LoadedAssemblies = new List<Assembly>();
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MethodDetailss = new List<MethodDetails>();
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Nodes = new Dictionary<string, NodeModelBase>();
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FlipflopNodes = new List<SingleFlipflopNode>();
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IsGlobalInterrupt = false;
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flowStarter = null;
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}
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/// <summary>
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/// 节点的命名空间
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/// </summary>
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public const string NodeSpaceName = $"{nameof(Serein)}.{nameof(Serein.NodeFlow)}.{nameof(Serein.NodeFlow.Model)}";
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#region 环境接口事件
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/// <summary>
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/// 加载Dll
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/// </summary>
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public event LoadDLLHandler OnDllLoad;
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/// <summary>
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/// 项目加载完成
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/// </summary>
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public event ProjectLoadedHandler OnProjectLoaded;
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/// <summary>
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/// 节点连接属性改变事件
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/// </summary>
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public event NodeConnectChangeHandler OnNodeConnectChange;
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/// <summary>
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/// 节点创建事件
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/// </summary>
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public event NodeCreateHandler OnNodeCreate;
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/// <summary>
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/// 移除节点事件
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/// </summary>
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public event NodeRemoteHandler OnNodeRemote;
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/// <summary>
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/// 起始节点变化事件
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/// </summary>
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public event StartNodeChangeHandler OnStartNodeChange;
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/// <summary>
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/// 流程运行完成时间
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/// </summary>
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public event FlowRunCompleteHandler OnFlowRunComplete;
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#endregion
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/// <summary>
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/// 流程中断器
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/// </summary>
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public ChannelFlowInterrupt ChannelFlowInterrupt { get; set; }
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/// <summary>
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/// 是否全局中断
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/// </summary>
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public bool IsGlobalInterrupt { get; set; }
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/// <summary>
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/// 存储加载的程序集路径
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/// </summary>
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public List<string> LoadedAssemblyPaths { get; }
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/// <summary>
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/// 存储加载的程序集
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/// </summary>
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public List<Assembly> LoadedAssemblies { get; }
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/// <summary>
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/// 存储所有方法信息
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/// </summary>
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public List<MethodDetails> MethodDetailss { get; }
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/// <summary>
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/// 环境加载的节点集合
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/// </summary>
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public Dictionary<string, NodeModelBase> Nodes { get; }
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/// <summary>
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/// 存放触发器节点（运行时全部调用）
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/// </summary>
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public List<SingleFlipflopNode> FlipflopNodes { get; }
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/// <summary>
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/// 起始节点私有属性
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/// </summary>
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private NodeModelBase _startNode;
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/// <summary>
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/// 起始节点
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/// </summary>
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public NodeModelBase StartNode
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{
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get
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{
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return _startNode;
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}
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set
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{
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if (_startNode is not null)
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{
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_startNode.IsStart = false;
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}
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value.IsStart = true;
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_startNode = value;
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}
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}
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/// <summary>
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/// 流程启动器（每次运行时都会重新new一个）
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/// </summary>
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private FlowStarter? flowStarter;
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/// <summary>
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/// 异步运行
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/// </summary>
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/// <returns></returns>
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public async Task StartAsync()
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{
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ChannelFlowInterrupt?.CancelAllTasks();
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flowStarter = new FlowStarter();
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List<SingleFlipflopNode> flipflopNodes = Nodes.Values.Where(it => it.MethodDetails?.MethodDynamicType == NodeType.Flipflop && it.IsStart == false)
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.Select(it => (SingleFlipflopNode)it)
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.Where(node => node is SingleFlipflopNode flipflopNode && flipflopNode.NotExitPreviousNode())
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.ToList();// 获取需要再运行开始之前启动的触发器节点
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var runMethodDetailess = Nodes.Values.Select(item => item.MethodDetails).ToList(); // 获取环境中所有节点的方法信息
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var initMethods = MethodDetailss.Where(it => it.MethodDynamicType == NodeType.Init).ToList();
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var loadingMethods = MethodDetailss.Where(it => it.MethodDynamicType == NodeType.Loading).ToList();
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var exitMethods = MethodDetailss.Where(it => it.MethodDynamicType == NodeType.Exit).ToList();
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await flowStarter.RunAsync(StartNode,
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this,
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runMethodDetailess,
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initMethods,
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loadingMethods,
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exitMethods,
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flipflopNodes);
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if(flowStarter?.FlipFlopState == RunState.NoStart)
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{
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this.Exit(); // 未运行触发器时，才会调用结束方法
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}
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flowStarter = null;
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}
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public void Exit()
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{
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ChannelFlowInterrupt?.CancelAllTasks();
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flowStarter?.Exit();
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OnFlowRunComplete?.Invoke(new FlowEventArgs());
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}
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/// <summary>
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/// 清除所有
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/// </summary>
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public void ClearAll()
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{
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LoadedAssemblyPaths.Clear();
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LoadedAssemblies.Clear();
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MethodDetailss.Clear();
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}
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/// <summary>
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/// 运行环节加载了项目文件，需要创建节点控件
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/// </summary>
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/// <param name="nodeInfo"></param>
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/// <param name="methodDetailss"></param>
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/// <returns></returns>
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/// <exception cref="NotImplementedException"></exception>
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private NodeControlType GetNodeControlType(NodeInfo nodeInfo)
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{
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// 创建控件实例
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NodeControlType controlType = nodeInfo.Type switch
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{
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$"{NodeStaticConfig.NodeSpaceName}.{nameof(SingleActionNode)}" => NodeControlType.Action,// 动作节点控件
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$"{NodeStaticConfig.NodeSpaceName}.{nameof(SingleFlipflopNode)}" => NodeControlType.Flipflop, // 触发器节点控件
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$"{NodeStaticConfig.NodeSpaceName}.{nameof(SingleConditionNode)}" => NodeControlType.ExpCondition,// 条件表达式控件
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$"{NodeStaticConfig.NodeSpaceName}.{nameof(SingleExpOpNode)}" => NodeControlType.ExpOp, // 操作表达式控件
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$"{NodeStaticConfig.NodeSpaceName}.{nameof(CompositeConditionNode)}" => NodeControlType.ConditionRegion, // 条件区域控件
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_ => NodeControlType.None,
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};
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return controlType;
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}
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#region 对外暴露的接口
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/// <summary>
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/// 加载项目文件
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/// </summary>
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/// <param name="project"></param>
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/// <param name="filePath"></param>
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public void LoadProject(SereinProjectData project, string filePath)
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{
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// 加载项目配置文件
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var dllPaths = project.Librarys.Select(it => it.Path).ToList();
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List<MethodDetails> methodDetailss = [];
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// 遍历依赖项中的特性注解，生成方法详情
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foreach (var dll in dllPaths)
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{
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var dllFilePath = System.IO.Path.GetFullPath(System.IO.Path.Combine(filePath, dll));
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(var assembly, var list) = LoadAssembly(dllFilePath);
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if (assembly is not null && list.Count > 0)
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{
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MethodDetailss.AddRange(list); // 暂存方法描述
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OnDllLoad?.Invoke(new LoadDLLEventArgs(assembly, list)); // 通知UI创建dll面板显示
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}
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}
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// 方法加载完成，缓存到运行环境中。
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//MethodDetailss.AddRange(methodDetailss);
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//methodDetailss.Clear();
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List<(NodeModelBase, string[])> regionChildNodes = new List<(NodeModelBase, string[])>();
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List<(NodeModelBase, Position)> ordinaryNodes = new List<(NodeModelBase, Position)>();
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// 加载节点
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foreach (var nodeInfo in project.Nodes)
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{
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var controlType = GetNodeControlType(nodeInfo);
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if(controlType == NodeControlType.None)
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{
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continue;
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}
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else
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{
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TryGetMethodDetails(nodeInfo.MethodName, out MethodDetails? methodDetails); // 加载项目时尝试获取方法信息
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methodDetails ??= new MethodDetails();
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var nodeModel = CreateNode(controlType, methodDetails);
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nodeModel.LoadInfo(nodeInfo); // 创建节点model
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if (nodeModel is null)
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{
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continue;
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}
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TryAddNode(nodeModel);
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if(nodeInfo.ChildNodeGuids?.Length > 0)
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{
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regionChildNodes.Add((nodeModel,nodeInfo.ChildNodeGuids));
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OnNodeCreate?.Invoke(new NodeCreateEventArgs(nodeModel, nodeInfo.Position));
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}
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else
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{
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ordinaryNodes.Add((nodeModel, nodeInfo.Position));
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}
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}
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}
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// 加载区域的子项
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foreach((NodeModelBase region, string[] childNodeGuids) item in regionChildNodes)
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{
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foreach (var childNodeGuid in item.childNodeGuids)
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{
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Nodes.TryGetValue(childNodeGuid, out NodeModelBase? childNode);
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if (childNode is null)
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{
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// 节点尚未加载
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continue;
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}
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// 存在节点
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OnNodeCreate?.Invoke(new NodeCreateEventArgs(childNode, true, item.region.Guid));
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}
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}
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// 加载节点
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foreach ((NodeModelBase nodeModel, Position position) item in ordinaryNodes)
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{
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bool IsContinue = false;
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foreach ((NodeModelBase region, string[] childNodeGuids) item2 in regionChildNodes)
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{
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foreach (var childNodeGuid in item2.childNodeGuids)
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{
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if (item.nodeModel.Guid.Equals(childNodeGuid))
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{
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IsContinue = true;
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}
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}
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}
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if (IsContinue) continue;
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OnNodeCreate?.Invoke(new NodeCreateEventArgs(item.nodeModel, item.position));
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}
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// 确定节点之间的连接关系
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foreach (var nodeInfo in project.Nodes)
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{
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if (!Nodes.TryGetValue(nodeInfo.Guid, out NodeModelBase? fromNode))
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{
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// 不存在对应的起始节点
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continue;
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}
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List<(ConnectionType connectionType, string[] guids)> allToNodes = [(ConnectionType.IsSucceed,nodeInfo.TrueNodes),
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(ConnectionType.IsFail, nodeInfo.FalseNodes),
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(ConnectionType.IsError, nodeInfo.ErrorNodes),
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(ConnectionType.Upstream, nodeInfo.UpstreamNodes)];
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List<(ConnectionType, NodeModelBase[])> fromNodes = allToNodes.Where(info => info.guids.Length > 0)
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.Select(info => (info.connectionType,
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info.guids.Select(guid => Nodes[guid])
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.ToArray()))
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.ToList();
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// 遍历每种类型的节点分支（四种）
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foreach ((ConnectionType connectionType, NodeModelBase[] toNodes) item in fromNodes)
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{
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// 遍历当前类型分支的节点（确认连接关系）
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foreach (var toNode in item.toNodes)
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{
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ConnectNode(fromNode, toNode, item.connectionType); // 加载时确定节点间的连接关系
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}
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}
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}
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SetStartNode(project.StartNode);
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OnProjectLoaded?.Invoke(new ProjectLoadedEventArgs());
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}
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/// <summary>
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/// 保存项目为项目文件
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/// </summary>
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/// <returns></returns>
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public SereinProjectData SaveProject()
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{
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var projectData = new SereinProjectData()
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{
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Librarys = LoadedAssemblies.Select(assemblies => assemblies.ToLibrary()).ToArray(),
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Nodes = Nodes.Values.Select(node => node.ToInfo()).Where(info => info is not null).ToArray(),
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StartNode = Nodes.Values.FirstOrDefault(it => it.IsStart)?.Guid,
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};
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return projectData;
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}
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/// <summary>
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/// 从文件路径中加载DLL
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/// </summary>
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/// <param name="dllPath"></param>
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/// <returns></returns>
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public void LoadDll(string dllPath)
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{
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(var assembly, var list) = LoadAssembly(dllPath);
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if (assembly is not null && list.Count > 0)
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{
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MethodDetailss.AddRange(list);
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OnDllLoad?.Invoke(new LoadDLLEventArgs(assembly, list));
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}
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}
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/// <summary>
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/// 运行时创建节点
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/// </summary>
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/// <param name="nodeBase"></param>
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public void CreateNode(NodeControlType nodeControlType, Position position, MethodDetails? methodDetails = null)
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{
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var nodeModel = CreateNode(nodeControlType, methodDetails);
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TryAddNode(nodeModel);
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if(flowStarter?.FlowState != RunState.Completion
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&& nodeControlType == NodeControlType.Flipflop
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&& nodeModel is SingleFlipflopNode flipflopNode)
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{
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// 当前添加节点属于触发器，且当前正在运行，则加载到运行环境中
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flowStarter?.AddFlipflopInRuning(flipflopNode, this);
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}
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// 通知UI更改
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OnNodeCreate?.Invoke(new NodeCreateEventArgs(nodeModel, position));
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// 因为需要UI先布置了元素，才能通知UI变更特效
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// 如果不存在流程起始控件，默认设置为流程起始控件
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if (StartNode is null)
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{
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SetStartNode(nodeModel);
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}
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}
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/// <summary>
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/// 移除节点
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/// </summary>
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/// <param name="nodeGuid"></param>
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/// <exception cref="NotImplementedException"></exception>
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public void RemoteNode(string nodeGuid)
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{
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if (!Nodes.TryGetValue(nodeGuid, out NodeModelBase? remoteNode))
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{
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return;
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}
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if (remoteNode is null)
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{
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return;
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}
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if (remoteNode.IsStart)
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{
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return;
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}
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// 遍历所有父节点，从那些父节点中的子节点集合移除该节点
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foreach (var pnc in remoteNode.PreviousNodes)
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{
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var pCType = pnc.Key; // 连接类型
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for (int i = 0; i < pnc.Value.Count; i++)
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{
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NodeModelBase? pNode = pnc.Value[i];
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pNode.SuccessorNodes[pCType].RemoveAt(i);
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OnNodeConnectChange?.Invoke(new NodeConnectChangeEventArgs(pNode.Guid,
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remoteNode.Guid,
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pCType,
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NodeConnectChangeEventArgs.ConnectChangeType.Remote)); // 通知UI
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}
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}
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// 遍历所有子节点，从那些子节点中的父节点集合移除该节点
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foreach (var snc in remoteNode.SuccessorNodes)
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{
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var connectionType = snc.Key; // 连接类型
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for (int i = 0; i < snc.Value.Count; i++)
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{
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NodeModelBase? toNode = snc.Value[i];
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RemoteConnect(remoteNode, toNode, connectionType);
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//remoteNode.SuccessorNodes[connectionType].RemoveAt(i);
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//OnNodeConnectChange?.Invoke(new NodeConnectChangeEventArgs(remoteNode.Guid,
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// toNode.Guid,
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// connectionType,
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// NodeConnectChangeEventArgs.ConnectChangeType.Remote)); // 通知UI
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}
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}
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// 从集合中移除节点
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Nodes.Remove(nodeGuid);
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OnNodeRemote?.Invoke(new NodeRemoteEventArgs(nodeGuid));
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}
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/// <summary>
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/// 连接节点
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/// </summary>
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/// <param name="fromNode">起始节点</param>
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/// <param name="toNode">目标节点</param>
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/// <param name="connectionType">连接关系</param>
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public void ConnectNode(string fromNodeGuid, string toNodeGuid, ConnectionType connectionType)
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{
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// 获取起始节点与目标节点
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if (!Nodes.TryGetValue(fromNodeGuid, out NodeModelBase? fromNode) || !Nodes.TryGetValue(toNodeGuid, out NodeModelBase? toNode))
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{
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return;
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}
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if (fromNode is null || toNode is null)
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{
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return;
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}
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// 开始连接
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ConnectNode(fromNode, toNode, connectionType); // 外部调用连接方法
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}
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/// <summary>
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/// 移除连接关系
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/// </summary>
|
||
/// <param name="fromNodeGuid">起始节点Guid</param>
|
||
/// <param name="toNodeGuid">目标节点Guid</param>
|
||
/// <param name="connectionType">连接关系</param>
|
||
/// <exception cref="NotImplementedException"></exception>
|
||
public void RemoteConnect(string fromNodeGuid, string toNodeGuid, ConnectionType connectionType)
|
||
{
|
||
// 获取起始节点与目标节点
|
||
if (!Nodes.TryGetValue(fromNodeGuid, out NodeModelBase? fromNode) || !Nodes.TryGetValue(toNodeGuid, out NodeModelBase? toNode))
|
||
{
|
||
return;
|
||
}
|
||
if (fromNode is null || toNode is null)
|
||
{
|
||
return;
|
||
}
|
||
RemoteConnect(fromNode, toNode, connectionType);
|
||
|
||
//fromNode.SuccessorNodes[connectionType].Remove(toNode);
|
||
//toNode.PreviousNodes[connectionType].Remove(fromNode);
|
||
//OnNodeConnectChange?.Invoke(new NodeConnectChangeEventArgs(fromNodeGuid,
|
||
// toNodeGuid,
|
||
// connectionType,
|
||
// NodeConnectChangeEventArgs.ConnectChangeType.Remote));
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 移除连接关系
|
||
/// </summary>
|
||
/// <param name="fromNodeGuid">起始节点Model</param>
|
||
/// <param name="toNodeGuid">目标节点Model</param>
|
||
/// <param name="connectionType">连接关系</param>
|
||
/// <exception cref="NotImplementedException"></exception>
|
||
private void RemoteConnect(NodeModelBase fromNode, NodeModelBase toNode, ConnectionType connectionType)
|
||
{
|
||
fromNode.SuccessorNodes[connectionType].Remove(toNode);
|
||
toNode.PreviousNodes[connectionType].Remove(fromNode);
|
||
if(toNode is SingleFlipflopNode flipflopNode)
|
||
{
|
||
if (flowStarter?.FlowState != RunState.Completion
|
||
&& flipflopNode.NotExitPreviousNode())
|
||
{
|
||
// 被父节点移除连接关系的子节点若为触发器，且无上级节点，则当前流程正在运行，则加载到运行环境中
|
||
flowStarter?.AddFlipflopInRuning(flipflopNode, this);
|
||
}
|
||
}
|
||
|
||
// 通知UI
|
||
OnNodeConnectChange?.Invoke(new NodeConnectChangeEventArgs(fromNode.Guid,
|
||
toNode.Guid,
|
||
connectionType,
|
||
NodeConnectChangeEventArgs.ConnectChangeType.Remote));
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取方法描述
|
||
/// </summary>
|
||
public bool TryGetMethodDetails(string name, out MethodDetails? md)
|
||
{
|
||
var isPass = false;
|
||
if (!string.IsNullOrEmpty(name))
|
||
{
|
||
md = MethodDetailss.FirstOrDefault(it => it.MethodName == name);
|
||
return md != null;
|
||
}
|
||
else
|
||
{
|
||
md = null;
|
||
return false;
|
||
}
|
||
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置起点控件
|
||
/// </summary>
|
||
/// <param name="newNodeGuid"></param>
|
||
public void SetStartNode(string newNodeGuid)
|
||
{
|
||
if (string.IsNullOrEmpty(newNodeGuid))
|
||
{
|
||
return;
|
||
}
|
||
if (Nodes.TryGetValue(newNodeGuid, out NodeModelBase? newStartNodeModel))
|
||
{
|
||
if (newStartNodeModel != null)
|
||
{
|
||
SetStartNode(newStartNodeModel);
|
||
//var oldNodeGuid = "";
|
||
//if(StartNode != null)
|
||
//{
|
||
// oldNodeGuid = StartNode.Guid;
|
||
// StartNode.IsStart = false;
|
||
//}
|
||
//newStartNodeModel.IsStart = true;
|
||
//StartNode = newStartNodeModel;
|
||
//OnStartNodeChange?.Invoke(new StartNodeChangeEventArgs(oldNodeGuid, newNodeGuid));
|
||
}
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 私有方法
|
||
|
||
/// <summary>
|
||
/// 加载指定路径的DLL文件
|
||
/// </summary>
|
||
/// <param name="dllPath"></param>
|
||
private (Assembly?, List<MethodDetails>) LoadAssembly(string dllPath)
|
||
{
|
||
try
|
||
{
|
||
Assembly assembly = Assembly.LoadFrom(dllPath); // 加载DLL文件
|
||
Type[] types = assembly.GetTypes(); // 获取程序集中的所有类型
|
||
|
||
List<Type> scanTypes = assembly.GetTypes().Where(t => t.GetCustomAttribute<DynamicFlowAttribute>()?.Scan == true).ToList();
|
||
if (scanTypes.Count == 0)
|
||
{
|
||
return (null, []);
|
||
}
|
||
|
||
List<MethodDetails> methodDetails = new List<MethodDetails>();
|
||
// 遍历扫描的类型
|
||
foreach (var item in scanTypes)
|
||
{
|
||
// 加载DLL，创建 MethodDetails、实例作用对象、委托方法
|
||
var itemMethodDetails = MethodDetailsHelperTmp.GetList(item, false);
|
||
methodDetails.AddRange(itemMethodDetails);
|
||
//foreach (var md in itemMethodDetails)
|
||
//{
|
||
// // var instanceType =
|
||
// // Activator.CreateInstance(md.ActingInstanceType);
|
||
// // SereinIoc.RegisterInstantiate(md.ActingInstance);
|
||
// SereinIoc.Register(md.ActingInstanceType);
|
||
//}
|
||
}
|
||
LoadedAssemblies.Add(assembly); // 将加载的程序集添加到列表中
|
||
LoadedAssemblyPaths.Add(dllPath); // 记录加载的DLL路径
|
||
return (assembly, methodDetails);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
Console.WriteLine(ex.ToString());
|
||
return (null, []);
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 创建节点
|
||
/// </summary>
|
||
/// <param name="nodeBase"></param>
|
||
private NodeModelBase CreateNode(NodeControlType nodeControlType,MethodDetails? methodDetails = null)
|
||
{
|
||
// 确定创建的节点类型
|
||
Type? nodeType = nodeControlType switch
|
||
{
|
||
NodeControlType.Action => typeof(SingleActionNode),
|
||
NodeControlType.Flipflop => typeof(SingleFlipflopNode),
|
||
|
||
NodeControlType.ExpOp => typeof(SingleExpOpNode),
|
||
NodeControlType.ExpCondition => typeof(SingleConditionNode),
|
||
NodeControlType.ConditionRegion => typeof(CompositeConditionNode),
|
||
_ => null
|
||
};
|
||
|
||
if (nodeType == null)
|
||
{
|
||
throw new Exception($"节点类型错误[{nodeControlType}]");
|
||
}
|
||
// 生成实例
|
||
var nodeObj = Activator.CreateInstance(nodeType);
|
||
if (nodeObj is not NodeModelBase nodeBase)
|
||
{
|
||
throw new Exception($"无法创建目标节点类型的实例[{nodeControlType}]");
|
||
}
|
||
|
||
// 配置基础的属性
|
||
nodeBase.ControlType = nodeControlType;
|
||
if (methodDetails != null)
|
||
{
|
||
var md = methodDetails.Clone();
|
||
nodeBase.DisplayName = md.MethodTips;
|
||
nodeBase.MethodDetails = md;
|
||
}
|
||
|
||
// 如果是触发器，则需要添加到专属集合中
|
||
if (nodeControlType == NodeControlType.Flipflop && nodeBase is SingleFlipflopNode flipflopNode)
|
||
{
|
||
var guid = flipflopNode.Guid;
|
||
if (!FlipflopNodes.Exists(it => it.Guid.Equals(guid)))
|
||
{
|
||
FlipflopNodes.Add(flipflopNode);
|
||
}
|
||
}
|
||
|
||
return nodeBase;
|
||
}
|
||
|
||
private bool TryAddNode(NodeModelBase nodeModel)
|
||
{
|
||
nodeModel.Guid ??= Guid.NewGuid().ToString();
|
||
Nodes[nodeModel.Guid] = nodeModel;
|
||
return true;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 连接节点
|
||
/// </summary>
|
||
/// <param name="fromNode">起始节点</param>
|
||
/// <param name="toNode">目标节点</param>
|
||
/// <param name="connectionType">连接关系</param>
|
||
private void ConnectNode(NodeModelBase fromNode, NodeModelBase toNode, ConnectionType connectionType)
|
||
{
|
||
if (fromNode == null || toNode == null || fromNode == toNode)
|
||
{
|
||
return;
|
||
}
|
||
|
||
var ToExistOnFrom = true;
|
||
var FromExistInTo = true;
|
||
ConnectionType[] ct = [ConnectionType.IsSucceed,
|
||
ConnectionType.IsFail,
|
||
ConnectionType.IsError,
|
||
ConnectionType.Upstream];
|
||
foreach (ConnectionType ctType in ct)
|
||
{
|
||
var FToTo = fromNode.SuccessorNodes[ctType].Where(it => it.Guid.Equals(toNode.Guid)).ToArray();
|
||
var ToOnF = toNode.PreviousNodes[ctType].Where(it => it.Guid.Equals(fromNode.Guid)).ToArray();
|
||
ToExistOnFrom = FToTo.Length > 0;
|
||
FromExistInTo = ToOnF.Length > 0;
|
||
if (ToExistOnFrom && FromExistInTo)
|
||
{
|
||
Console.WriteLine("起始节点已与目标节点存在连接");
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
// 检查是否可能存在异常
|
||
if (!ToExistOnFrom && FromExistInTo)
|
||
{
|
||
Console.WriteLine("目标节点不是起始节点的子节点，起始节点却是目标节点的父节点");
|
||
return;
|
||
}
|
||
else if (ToExistOnFrom && !FromExistInTo)
|
||
{
|
||
//
|
||
Console.WriteLine(" 起始节点不是目标节点的父节点，目标节点却是起始节点的子节点");
|
||
return;
|
||
}
|
||
else // if (!ToExistOnFrom && !FromExistInTo)
|
||
{
|
||
// 可以正常连接
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
fromNode.SuccessorNodes[connectionType].Add(toNode); // 添加到起始节点的子分支
|
||
toNode.PreviousNodes[connectionType].Add(fromNode); // 添加到目标节点的父分支
|
||
OnNodeConnectChange?.Invoke(new NodeConnectChangeEventArgs(fromNode.Guid,
|
||
toNode.Guid,
|
||
connectionType,
|
||
NodeConnectChangeEventArgs.ConnectChangeType.Create)); // 通知UI
|
||
}
|
||
|
||
/// <summary>
|
||
/// 更改起点节点
|
||
/// </summary>
|
||
/// <param name="newStartNode"></param>
|
||
/// <param name="oldStartNode"></param>
|
||
private void SetStartNode(NodeModelBase newStartNode)
|
||
{
|
||
var oldNodeGuid = StartNode?.Guid;
|
||
StartNode = newStartNode;
|
||
OnStartNodeChange?.Invoke(new StartNodeChangeEventArgs(oldNodeGuid, StartNode.Guid));
|
||
}
|
||
|
||
|
||
|
||
#endregion
|
||
|
||
#region 网络交互
|
||
|
||
#endregion
|
||
|
||
}
|
||
public static class FlowFunc
|
||
{
|
||
public static Library.Entity.Library ToLibrary(this Assembly assembly)
|
||
{
|
||
return new Library.Entity.Library
|
||
{
|
||
Name = assembly.GetName().Name,
|
||
Path = assembly.Location,
|
||
};
|
||
}
|
||
|
||
public static ConnectionType ToContentType(this FlipflopStateType flowStateType)
|
||
{
|
||
return flowStateType switch
|
||
{
|
||
FlipflopStateType.Succeed => ConnectionType.IsSucceed,
|
||
FlipflopStateType.Fail => ConnectionType.IsFail,
|
||
FlipflopStateType.Error => ConnectionType.IsError,
|
||
FlipflopStateType.Cancel => ConnectionType.None,
|
||
_ => throw new NotImplementedException("未定义的流程状态")
|
||
};
|
||
}
|
||
|
||
|
||
public static Type? ControlTypeToModel(this NodeControlType nodeControlType )
|
||
{
|
||
// 确定创建的节点类型
|
||
Type? nodeType = nodeControlType switch
|
||
{
|
||
NodeControlType.Action => typeof(SingleActionNode),
|
||
NodeControlType.Flipflop => typeof(SingleFlipflopNode),
|
||
|
||
NodeControlType.ExpOp => typeof(SingleExpOpNode),
|
||
NodeControlType.ExpCondition => typeof(SingleConditionNode),
|
||
NodeControlType.ConditionRegion => typeof(CompositeConditionNode),
|
||
_ => null
|
||
};
|
||
return nodeType;
|
||
}
|
||
public static NodeControlType ModelToControlType(this NodeControlType nodeControlType)
|
||
{
|
||
var type = nodeControlType.GetType();
|
||
NodeControlType controlType = type switch
|
||
{
|
||
Type when type == typeof(SingleActionNode) => NodeControlType.Action,
|
||
Type when type == typeof(SingleFlipflopNode) => NodeControlType.Flipflop,
|
||
|
||
Type when type == typeof(SingleExpOpNode) => NodeControlType.ExpOp,
|
||
Type when type == typeof(SingleConditionNode) => NodeControlType.ExpCondition,
|
||
Type when type == typeof(CompositeConditionNode) => NodeControlType.ConditionRegion,
|
||
_ => NodeControlType.None,
|
||
};
|
||
return controlType;
|
||
}
|
||
|
||
public static bool NotExitPreviousNode(this SingleFlipflopNode node)
|
||
{
|
||
ConnectionType[] ct = [ConnectionType.IsSucceed,
|
||
ConnectionType.IsFail,
|
||
ConnectionType.IsError,
|
||
ConnectionType.Upstream];
|
||
foreach (ConnectionType ctType in ct)
|
||
{
|
||
if(node.PreviousNodes[ctType].Count > 0)
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
}
|
||
|
||
|
||
|
||
}
|
