忘记改啥了*1

Library.Core/DynamicContext.cs

@@ -0,0 +1,162 @@
+using Serein.Library.Api;
+using Serein.Library.Utils;
+using System.Collections.Concurrent;
+
+namespace Serein.Library.Core
+{
+
+    /// <summary>
+    /// 动态流程上下文
+    /// </summary>
+    public class DynamicContext : IDynamicContext
+    {
+        /// <summary>
+        /// 动态流程上下文
+        /// </summary>
+        /// <param name="flowEnvironment"></param>
+        public DynamicContext(IFlowEnvironment flowEnvironment)
+        {
+            Env = flowEnvironment;
+            RunState = RunState.Running;
+        }
+
+        /// <summary>
+        /// 运行环境
+        /// </summary>
+        public IFlowEnvironment Env { get; }
+
+        /// <summary>
+        /// 运行状态
+        /// </summary>
+        public RunState RunState { get; set; } = RunState.NoStart;
+
+        /// <summary>
+        /// 用来在当前流程上下文间传递数据
+        /// </summary>
+        public Dictionary<string, object> ContextShareData { get; } = new Dictionary<string, object>();
+
+        /// <summary>
+        /// 当前节点执行完成后，设置该属性，让运行环境判断接下来要执行哪个分支的节点。
+        /// </summary>
+        public ConnectionInvokeType NextOrientation { get; set; }
+
+        /// <summary>
+        /// 每个流程上下文分别存放节点的当前数据
+        /// </summary>
+        private readonly ConcurrentDictionary<string, object?> dictNodeFlowData = new ConcurrentDictionary<string, object?>();
+
+        /// <summary>
+        /// 每个流程上下文存储运行时节点的调用关系
+        /// </summary>
+        private readonly ConcurrentDictionary<NodeModelBase, NodeModelBase> dictPreviousNodes = new ConcurrentDictionary<NodeModelBase, NodeModelBase>();
+
+        /// <summary>
+        /// 设置运行时上一节点
+        /// </summary>
+        /// <param name="currentNodeModel">当前节点</param>
+        /// <param name="PreviousNode">上一节点</param>
+        public void SetPreviousNode(NodeModelBase currentNodeModel, NodeModelBase PreviousNode)
+        {
+            dictPreviousNodes.AddOrUpdate(currentNodeModel, (_) => PreviousNode, (_, _) => PreviousNode);
+        }
+
+        /// <summary>
+        /// 获取当前节点的运行时上一节点
+        /// </summary>
+        /// <param name="currentNodeModel"></param>
+        /// <returns></returns>
+        public NodeModelBase GetPreviousNode(NodeModelBase currentNodeModel)
+        {
+            if (dictPreviousNodes.TryGetValue(currentNodeModel, out var node))
+            {
+                return node;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+
+        /// <summary>
+        /// 获取节点当前数据
+        /// </summary>
+        /// <param name="nodeGuid">节点</param>
+        /// <returns></returns>
+        public object? GetFlowData(string nodeGuid)
+        {
+            if (dictNodeFlowData.TryGetValue(nodeGuid, out var data))
+            {
+                return data;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// 添加或更新当前节点数据
+        /// </summary>
+        /// <param name="nodeGuid">节点</param>
+        /// <param name="flowData">新的数据</param>
+        public void AddOrUpdate(string nodeGuid, object? flowData)
+        {
+            // this.dictNodeFlowData.TryGetValue(nodeGuid, out var oldFlowData);
+            dictNodeFlowData.AddOrUpdate(nodeGuid, _ => flowData, (_, _) => flowData);
+        }
+
+        /// <summary>
+        /// 上一节点数据透传到下一节点
+        /// </summary>
+        /// <param name="nodeModel"></param>
+        public object? TransmissionData(NodeModelBase nodeModel)
+        {
+            if (dictPreviousNodes.TryGetValue(nodeModel, out var previousNode)) // 首先获取当前节点的上一节点
+            {
+                if (dictNodeFlowData.TryGetValue(previousNode.Guid, out var data)) // 其次获取上一节点的数据
+                {
+                    return data;
+                    //AddOrUpdate(nodeModel.Guid, data); // 然后作为当前节点的数据记录在上下文中
+                }
+            }
+            return null;
+        }
+
+
+        /// <summary>
+        /// 结束流程
+        /// </summary>
+        public void Exit()
+        {
+            foreach (var nodeObj in dictNodeFlowData.Values)
+            {
+                if (nodeObj is not null)
+                {
+                    if (typeof(IDisposable).IsAssignableFrom(nodeObj?.GetType()) && nodeObj is IDisposable disposable)
+                    {
+                        disposable?.Dispose();
+                    }
+                }
+            }
+            foreach (var nodeObj in ContextShareData.Values)
+            {
+                if (nodeObj is null)
+                {
+                    continue;
+                }
+                else
+                {
+                    if (typeof(IDisposable).IsAssignableFrom(nodeObj?.GetType()) && nodeObj is IDisposable disposable)
+                    {
+                        disposable?.Dispose();
+                    }
+                }
+            }
+            this.dictNodeFlowData?.Clear();
+            this.ContextShareData?.Clear();
+            RunState = RunState.Completion;
+        }
+
+    }
+}