mirror of
https://gitee.com/langsisi_admin/serein-flow
synced 2026-03-03 00:00:49 +08:00
620 lines
28 KiB
C#
620 lines
28 KiB
C#
using Serein.Library;
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using Serein.Library.Api;
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using Serein.NodeFlow.Env;
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using Serein.NodeFlow.Model;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reactive;
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using System.Security.AccessControl;
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using System.Text;
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using System.Threading.Tasks;
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using static Serein.Library.Api.NodeConnectChangeEventArgs;
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namespace Serein.NodeFlow.Model.Operation
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{
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/// <summary>
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/// 节点连接状态发生改变
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/// </summary>
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internal class ChangeNodeConnectionOperation : OperationBase
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{
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public override string Theme => nameof(ChangeNodeConnectionOperation);
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/// <summary>
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/// 所在画布
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/// </summary>
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public required string CanvasGuid { get; set; }
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/// <summary>
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/// 连接关系中始节点的Guid
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/// </summary>
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public required string FromNodeGuid { get; set; }
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/// <summary>
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/// 连接关系中目标节点的Guid
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/// </summary>
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public required string ToNodeGuid { get; set; }
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/// <summary>
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/// 起始节点连接控制点类型
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/// </summary>
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public JunctionType FromNodeJunctionType { get; set; }
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/// <summary>
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/// 目标节点连接控制点类型
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/// </summary>
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public JunctionType ToNodeJunctionType { get; set; }
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/// 连接类型
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/// </summary>
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public ConnectionInvokeType ConnectionInvokeType { get; set; }
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/// <summary>
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/// 表示此次需要在两个节点之间创建连接关系，或是移除连接关系
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/// </summary>
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public ConnectChangeType ChangeType { get; set; }
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/// <summary>
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/// 指示需要创建什么类型的连接线
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/// </summary>
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public JunctionOfConnectionType JunctionOfConnectionType { get; set; } = JunctionOfConnectionType.None;
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/// <summary>
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/// 节点对应的方法入参所需参数来源
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/// </summary>
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public ConnectionArgSourceType ConnectionArgSourceType { get; set; }
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/// <summary>
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/// 第几个参数
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/// </summary>
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public int ArgIndex { get; set; } = -1;
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public override bool IsCanUndo => false;
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#region 私有参数
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private FlowCanvasDetails FlowCanvas;
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private IFlowNode FromNode;
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private IFlowNode ToNode;
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#endregion
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public override bool ValidationParameter()
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{
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if (JunctionOfConnectionType == JunctionOfConnectionType.None)
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return false;
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if (JunctionOfConnectionType == JunctionOfConnectionType.Arg && ArgIndex == -1)
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return false;
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if (!flowModelService.ContainsCanvasModel(CanvasGuid) // 不存在画布
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|| !flowModelService.ContainsNodeModel(FromNodeGuid) // 不存在节点
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|| !flowModelService.ContainsNodeModel(ToNodeGuid)) // 不存在节点
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{
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return false;
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}
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return true;
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}
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public override async Task<bool> ExecuteAsync()
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{
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if (!ValidationParameter()) return false;
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if (!flowModelService.TryGetCanvasModel(CanvasGuid, out FlowCanvas) // 不存在画布
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|| !flowModelService.TryGetNodeModel(FromNodeGuid, out FromNode) // 不存在节点
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|| !flowModelService.TryGetNodeModel(ToNodeGuid, out ToNode)) // 不存在节点
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{
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return false;
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}
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if(ChangeType == ConnectChangeType.Create) // 创建连线时需要检查
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{
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(var jcType, var isCanConnection) = CheckConnect(FromNode, ToNode, FromNodeJunctionType, ToNodeJunctionType);
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if (!isCanConnection)
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{
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SereinEnv.WriteLine(InfoType.WARN, "出现非预期的连接行为");
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return false; // 出现不符预期的连接行为，忽略此次连接行为
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}
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// 如果起始控制点是“方法执行”,目标控制点是“方法调用”，需要反转 from to 节点
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if (jcType == JunctionOfConnectionType.Invoke
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&& FromNodeJunctionType == JunctionType.Execute
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&& ToNodeJunctionType == JunctionType.NextStep)
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{
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// 如果 起始控制点 是“方法调用”，需要反转 from to 节点
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(FromNode, ToNode) = (ToNode, FromNode);
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}
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// 如果起始控制点是“方法入参”,目标控制点是“返回值”，需要反转 from to 节点
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if (jcType == JunctionOfConnectionType.Arg
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&& FromNodeJunctionType == JunctionType.ArgData
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&& ToNodeJunctionType == JunctionType.ReturnData)
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{
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(FromNode, ToNode) = (ToNode, FromNode);
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}
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}
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//if (toNode is SingleFlipflopNode flipflopNode)
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//{
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// flowTaskManagement?.TerminateGlobalFlipflopRuning(flipflopNode); // 假设被连接的是全局触发器，尝试移除
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//}
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var state = (JunctionOfConnectionType, ChangeType) switch
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{
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(JunctionOfConnectionType.Invoke, NodeConnectChangeEventArgs.ConnectChangeType.Create) => await CreateInvokeConnection(), // 创建节点之间的调用关系
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(JunctionOfConnectionType.Invoke, NodeConnectChangeEventArgs.ConnectChangeType.Remove) => await RemoveInvokeConnection(), // 移除节点之间的调用关系
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(JunctionOfConnectionType.Arg, NodeConnectChangeEventArgs.ConnectChangeType.Create) => await CreateArgConnection(), // 创建节点之间的参数传递关系
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(JunctionOfConnectionType.Arg, NodeConnectChangeEventArgs.ConnectChangeType.Remove) => await RemoveArgConnection(), // 移除节点之间的参数传递关系
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_ => false
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};
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return state;
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}
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public override void ToInfo()
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{
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throw new NotImplementedException();
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}
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/// <summary>
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/// 创建方法调用关系
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/// </summary>
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private async Task<bool> CreateInvokeConnection()
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{
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IFlowNode fromNode = FromNode ;
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IFlowNode toNode = ToNode;
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ConnectionInvokeType invokeType = ConnectionInvokeType;
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if (fromNode.ControlType == NodeControlType.FlowCall)
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{
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SereinEnv.WriteLine(InfoType.ERROR, $"流程接口节点不可调用下一个节点。" +
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$"{Environment.NewLine}流程节点:{fromNode.Guid}");
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return false;
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}
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var isOverwriting = false;
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ConnectionInvokeType overwritingCt = ConnectionInvokeType.None;
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var isPass = false;
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#region 类型检查
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bool checkTypeState = true;
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List<ParameterDetails> toPds = new List<ParameterDetails>();
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if (FromNode.ContainerNode is not null)
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{
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SereinEnv.WriteLine(InfoType.WARN, "连接失败，起始节点处于容器中");
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return false;
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}
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if (ToNode.ContainerNode is not null)
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{
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SereinEnv.WriteLine(InfoType.WARN, "连接失败，目标节点处于容器中");
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return false;
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}
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if (ToNode.ControlType != NodeControlType.GlobalData)
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{
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if (ToNode.MethodDetails.ParameterDetailss is null)
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{
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SereinEnv.WriteLine(InfoType.WARN, "连接失败，目标节点没有入参参数。");
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return false;
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}
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if (ToNode.MethodDetails.ParameterDetailss.Length > 0)
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{
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var fromNoeReturnType = fromNode.MethodDetails.ReturnType;
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if (fromNoeReturnType != null
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&& fromNoeReturnType != typeof(object)
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&& fromNoeReturnType != typeof(void)
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&& fromNoeReturnType != typeof(Unit))
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{
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var toNodePds = toNode.MethodDetails.ParameterDetailss;
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foreach (ParameterDetails toNodePd in toNodePds)
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{
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if (string.IsNullOrWhiteSpace(toNodePd.ArgDataSourceNodeGuid) // 入参没有设置数据来源节点
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&& toNodePd.DataType.IsAssignableFrom(fromNoeReturnType)) // 返回值与目标入参相同（或可转换为目标入参）
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{
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toPds.Add(toNodePd);
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}
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}
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if (toPds.Count == 0)
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{
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var any = toNodePds.Any(pd => pd.ArgDataSourceNodeGuid == fromNode.Guid); // 判断目标节点是否已有该节点的连接
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checkTypeState = any;
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}
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else
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{
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checkTypeState = true; // 类型检查初步通过
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}
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}
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}
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}
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if (!checkTypeState) // 类型检查不通过
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{
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SereinEnv.WriteLine(InfoType.ERROR, "创建失败，目标节点没有合适的入参接收返回值");
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return false;
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}
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#endregion
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#region 检查是否存在对应的连接
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foreach (ConnectionInvokeType ctType in NodeStaticConfig.ConnectionTypes)
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{
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var count1 = fromNode.SuccessorNodes[ctType].Count(it => it.Guid.Equals(toNode.Guid));
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var count2 = toNode.PreviousNodes[ctType].Count(it => it.Guid.Equals(fromNode.Guid));
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var hasError1 = count1 > 0;
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var hasError2 = count2 > 0;
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if (hasError1 && hasError2)
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{
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if (ctType == invokeType)
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{
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SereinEnv.WriteLine(InfoType.WARN, $"起始节点已与目标节点存在连接。" +
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$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
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$"{Environment.NewLine}目标节点:{toNode.Guid}");
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return false;
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}
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isOverwriting = true; // 需要移除连接再创建连接
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overwritingCt = ctType;
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}
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else
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{
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// 检查是否可能存在异常
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if (!hasError1 && hasError2)
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{
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SereinEnv.WriteLine(InfoType.ERROR, $"起始节点不是目标节点的父节点，目标节点却是起始节点的子节点。" +
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$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
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$"{Environment.NewLine}目标节点:{toNode.Guid}");
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isPass = false;
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}
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else if (hasError1 && !hasError2)
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{
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//
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SereinEnv.WriteLine(InfoType.ERROR, $"起始节点不是目标节点的父节点，目标节点却是起始节点的子节点。" +
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$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
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$"{Environment.NewLine}目标节点:{toNode.Guid}" +
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$"");
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isPass = false;
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}
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else
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{
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isPass = true;
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}
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}
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}
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#endregion
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if (isPass)
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{
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if (isOverwriting) // 需要替换
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{
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fromNode.SuccessorNodes[overwritingCt].Remove(toNode); // 从起始节点原有类别的子分支中移除
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toNode.PreviousNodes[overwritingCt].Remove(fromNode); // 从目标节点原有类别的父分支中移除
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}
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fromNode.SuccessorNodes[invokeType].Add(toNode); // 添加到起始节点新类别的子分支
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toNode.PreviousNodes[invokeType].Add(fromNode); // 添加到目标节点新类别的父分支
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await TriggerEvent(() =>
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{
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flowEnvironmentEvent.OnNodeConnectChanged(
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new NodeConnectChangeEventArgs(
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FlowCanvas.Guid,
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fromNode.Guid, // 从哪个节点开始
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toNode.Guid, // 连接到那个节点
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JunctionOfConnectionType.Invoke,
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invokeType, // 连接线的样式类型
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NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
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));
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});
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/* foreach (var toPd in toPds)
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{
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string canvasGuid = CanvasGuid;
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string fromNodeGuid = fromNode.Guid;
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string toNodeGuid = toNode.Guid;
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JunctionType fromNodeJunctionType = JunctionType.ReturnData;
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JunctionType toNodeJunctionType = JunctionType.ArgData;
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ConnectionArgSourceType argSourceType = ConnectionArgSourceType.GetOtherNodeData;
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int argIndex = toPd.Index;
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// 调用创建连线接口
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flowEnvironment.FlowEdit.ConnectArgSourceNode(canvasGuid,
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fromNodeGuid,
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toNodeGuid,
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fromNodeJunctionType,
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toNodeJunctionType,
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argSourceType,
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argIndex);
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}*/
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// Invoke
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// GetResult
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 移除方法调用关系
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/// </summary>
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private async Task<bool> RemoveInvokeConnection()
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{
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FromNode.SuccessorNodes[ConnectionInvokeType].Remove(ToNode);
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ToNode.PreviousNodes[ConnectionInvokeType].Remove(FromNode);
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await TriggerEvent(() =>
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{
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flowEnvironmentEvent.OnNodeConnectChanged(
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new NodeConnectChangeEventArgs(
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FlowCanvas.Guid,
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FromNode.Guid,
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ToNode.Guid,
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JunctionOfConnectionType.Invoke,
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ConnectionInvokeType,
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NodeConnectChangeEventArgs.ConnectChangeType.Remove));
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});
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/* if (string.IsNullOrEmpty(ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid))
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{
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return false;
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}
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toNode.MethodDetails.ParameterDetailss[argIndex].ArgDataSourceNodeGuid = null;
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toNode.MethodDetails.ParameterDetailss[argIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
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if (OperatingSystem.IsWindows())
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{
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UIContextOperation?.Invoke(() => Event.OnNodeConnectChanged(
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new NodeConnectChangeEventArgs(
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canvasGuid,
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fromNode.Guid,
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toNode.Guid,
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argIndex,
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JunctionOfConnectionType.Arg,
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ConnectionArgSourceType.GetPreviousNodeData,
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NodeConnectChangeEventArgs.ConnectChangeType.Remove)));
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}*/
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return true;
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}
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/// <summary>
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/// 创建参数连接关系
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/// </summary>
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/// <exception cref="Exception"></exception>
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private async Task<bool> CreateArgConnection()
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{/*
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IFlowNode fromNodeControl = ToNode;
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IFlowNode toNodeControl = ToNode;*/
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ConnectionArgSourceType type = ConnectionArgSourceType;
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int index = ArgIndex;
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/*FromNode.NeedResultNodes[type].Remove(ToNode); // 从起始节点的参数来源中移除目标节点
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if (FromNode.Guid == ToNode.Guid) // 不能连接到自己
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{
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SereinEnv.WriteLine(InfoType.ERROR, $"起始节点与目标节点不能是同一个节点" +
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$"{Environment.NewLine}起始节点：{FromNode.Guid}" +
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$"{Environment.NewLine}目标节点：{ToNode.Guid}");
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return false;
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}*/
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if (FromNode.MethodDetails.ReturnType == typeof(void))
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{
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SereinEnv.WriteLine(InfoType.WARN, $"连接失败，节点参数入参不允许接收 void 返回值。起始节点[{FromNode.Guid}]，目标节点[{FromNode.Guid}]。");
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return false;
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}
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var toNodeArgSourceGuid = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid; // 目标节点对应参数可能已经有其它连接
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var toNodeArgSourceType = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType;
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if (false && string.IsNullOrWhiteSpace(toNodeArgSourceGuid) && flowModelService.ContainsNodeModel(toNodeArgSourceGuid))
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{
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SereinEnv.WriteLine(InfoType.WARN, $"连接失败，节点参数入参不允许接收多个节点返回值。起始节点[{FromNode.Guid}]，目标节点[{FromNode.Guid}]。");
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return false;
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}
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if (FromNode.ContainerNode is not null)
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{
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SereinEnv.WriteLine(InfoType.WARN, "连接失败，参数来源节点处于容器中");
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return false;
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}
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// 判断是否建立过连接关系
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if (FromNode.Guid == toNodeArgSourceGuid && toNodeArgSourceType == ConnectionArgSourceType)
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{
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if (FromNode.NeedResultNodes[type].Contains(ToNode)) // 如果来源节点被该节点获取过，则创建链接
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{
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SereinEnv.WriteLine(InfoType.INFO, $"节点之间已建立过连接关系" +
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$"起始节点：{FromNode.Guid}" +
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$"目标节点：{ToNode.Guid}" +
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$"参数索引：{ArgIndex}" +
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$"参数类型：{ConnectionArgSourceType}");
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return false;
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}
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var fromNodeGuid = FromNode.Guid;
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var toNodeGuid = ToNode.Guid;
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// 目标节点需要参数，但却没有被依赖的记录，则添加依赖记录并出现连接
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FromNode.NeedResultNodes[type].Add(ToNode);
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await TriggerEvent(() =>
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{
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flowEnvironmentEvent.OnNodeConnectChanged(
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new NodeConnectChangeEventArgs(
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FlowCanvas.Guid,
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fromNodeGuid, // 从哪个节点开始
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toNodeGuid, // 连接到那个节点
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ArgIndex, // 连接线的样式类型
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JunctionOfConnectionType.Arg,
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ConnectionArgSourceType,
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NodeConnectChangeEventArgs.ConnectChangeType.Remove // 是创建连接还是删除连接
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)); // 通知UI
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});
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await TriggerEvent(() =>
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{
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flowEnvironmentEvent.OnNodeConnectChanged(
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new NodeConnectChangeEventArgs(
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FlowCanvas.Guid,
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fromNodeGuid, // 从哪个节点开始
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toNodeGuid, // 连接到那个节点
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ArgIndex, // 连接线的样式类型
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JunctionOfConnectionType.Arg,
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ConnectionArgSourceType,
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NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
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)); // 通知UI
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});
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return true;
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}
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if (!string.IsNullOrEmpty(toNodeArgSourceGuid)) // 参数入参节点已有来源，更改节点参数来源
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{
|
||
var fromNodeGuid = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid;
|
||
var toNodeGuid = ToNode.Guid;
|
||
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid = null;
|
||
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
|
||
FromNode.NeedResultNodes[type].Remove(ToNode);
|
||
await TriggerEvent(() =>
|
||
{
|
||
flowEnvironmentEvent.OnNodeConnectChanged(
|
||
new NodeConnectChangeEventArgs(
|
||
FlowCanvas.Guid,
|
||
fromNodeGuid,
|
||
toNodeGuid,
|
||
ArgIndex,
|
||
JunctionOfConnectionType.Arg,
|
||
ConnectionArgSourceType.GetPreviousNodeData,
|
||
NodeConnectChangeEventArgs.ConnectChangeType.Remove));
|
||
});
|
||
}
|
||
var toNodePd = ToNode.MethodDetails.ParameterDetailss[ArgIndex];
|
||
toNodePd.ArgDataSourceNodeGuid = FromNode.Guid;
|
||
toNodePd.ArgDataSourceType = ConnectionArgSourceType;
|
||
FromNode.NeedResultNodes[type].Add(ToNode);
|
||
toNodePd.IsExplicitData = false;
|
||
if (ToNode.ControlType == NodeControlType.Script)
|
||
{
|
||
// 脚本节点入参确定/改变来源时，更改对应的入参数据类型
|
||
toNodePd.DataType = FromNode.MethodDetails.ReturnType;
|
||
}
|
||
|
||
|
||
await TriggerEvent(() =>
|
||
{
|
||
flowEnvironmentEvent.OnNodeConnectChanged(
|
||
new NodeConnectChangeEventArgs(
|
||
FlowCanvas.Guid,
|
||
FromNode.Guid, // 从哪个节点开始
|
||
ToNode.Guid, // 连接到那个节点
|
||
ArgIndex, // 连接线的样式类型
|
||
JunctionOfConnectionType.Arg,
|
||
ConnectionArgSourceType,
|
||
NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
|
||
)); // 通知UI
|
||
});
|
||
|
||
return true;
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 移除参数连接关系
|
||
/// </summary>
|
||
/// <param name="fromNodeControl"></param>
|
||
/// <param name="toNodeControl"></param>
|
||
/// <param name="index"></param>
|
||
private async Task<bool> RemoveArgConnection()
|
||
{
|
||
if (ToNode.MethodDetails.ParameterDetailss is null) return false;
|
||
var type = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType;
|
||
FromNode.NeedResultNodes[type].Remove(ToNode);
|
||
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid = string.Empty;
|
||
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
|
||
|
||
|
||
await TriggerEvent(() =>
|
||
{
|
||
flowEnvironmentEvent.OnNodeConnectChanged(
|
||
new NodeConnectChangeEventArgs(
|
||
FlowCanvas.Guid,
|
||
FromNode.Guid,
|
||
ToNode.Guid,
|
||
ArgIndex,
|
||
JunctionOfConnectionType.Arg,
|
||
ConnectionArgSourceType.GetPreviousNodeData,
|
||
NodeConnectChangeEventArgs.ConnectChangeType.Remove));
|
||
});
|
||
|
||
return true;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 检查连接是否合法
|
||
/// </summary>
|
||
/// <param name="fromNode">发起连接的起始节点</param>
|
||
/// <param name="toNode">要连接的目标节点</param>
|
||
/// <param name="fromNodeJunctionType">发起连接节点的控制点类型</param>
|
||
/// <param name="toNodeJunctionType">被连接节点的控制点类型</param>
|
||
/// <returns></returns>
|
||
public static (JunctionOfConnectionType, bool) CheckConnect(IFlowNode fromNode,
|
||
IFlowNode toNode,
|
||
JunctionType fromNodeJunctionType,
|
||
JunctionType toNodeJunctionType)
|
||
{
|
||
var type = JunctionOfConnectionType.None;
|
||
var state = false;
|
||
if (fromNodeJunctionType == JunctionType.Execute)
|
||
{
|
||
if (toNodeJunctionType == JunctionType.NextStep && !fromNode.Guid.Equals(toNode.Guid))
|
||
{
|
||
// “方法执行”控制点拖拽到“下一节点”控制点，且不是同一个节点， 添加方法执行关系
|
||
type = JunctionOfConnectionType.Invoke;
|
||
state = true;
|
||
}
|
||
//else if (toNodeJunctionType == JunctionType.ArgData && fromNode.Guid.Equals(toNode.Guid))
|
||
//{
|
||
// // “方法执行”控制点拖拽到“方法入参”控制点，且是同一个节点，则添加获取参数关系，表示生成入参参数时自动从该节点的上一节点获取flowdata
|
||
// type = JunctionOfConnectionType.Arg;
|
||
// state = true;
|
||
//}
|
||
}
|
||
else if (fromNodeJunctionType == JunctionType.NextStep && !fromNode.Guid.Equals(toNode.Guid))
|
||
{
|
||
// “下一节点”控制点只能拖拽到“方法执行”控制点，且不能是同一个节点
|
||
if (toNodeJunctionType == JunctionType.Execute && !fromNode.Guid.Equals(toNode.Guid))
|
||
{
|
||
type = JunctionOfConnectionType.Invoke;
|
||
state = true;
|
||
}
|
||
}
|
||
else if (fromNodeJunctionType == JunctionType.ArgData)
|
||
{
|
||
//if (toNodeJunctionType == JunctionType.Execute && fromNode.Guid.Equals(toNode.Guid)) // 添加获取参数关系
|
||
//{
|
||
// // “方法入参”控制点拖拽到“方法执行”控制点，且是同一个节点，则添加获取参数关系，生成入参参数时自动从该节点的上一节点获取flowdata
|
||
// type = JunctionOfConnectionType.Arg;
|
||
// state = true;
|
||
//}
|
||
if (toNodeJunctionType == JunctionType.ReturnData && !fromNode.Guid.Equals(toNode.Guid))
|
||
{
|
||
// “”控制点拖拽到“方法返回值”控制点，且不是同一个节点，添加获取参数关系，生成参数时从目标节点获取flowdata
|
||
type = JunctionOfConnectionType.Arg;
|
||
state = true;
|
||
}
|
||
}
|
||
else if (fromNodeJunctionType == JunctionType.ReturnData)
|
||
{
|
||
if (toNodeJunctionType == JunctionType.ArgData && !fromNode.Guid.Equals(toNode.Guid))
|
||
{
|
||
// “方法返回值”控制点拖拽到“方法入参”控制点，且不是同一个节点，添加获取参数关系，生成参数时从目标节点获取flowdata
|
||
type = JunctionOfConnectionType.Arg;
|
||
state = true;
|
||
}
|
||
}
|
||
// 剩下的情况都是不符预期的连接行为，忽略。
|
||
return (type, state);
|
||
}
|
||
|
||
}
|
||
}
|
