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更改了dll参数类型，更改了流程执行，添加了异常分支处理

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This commit is contained in:
fengjiayi
2024-09-09 16:42:01 +08:00
parent b33c9ba857
commit 10f9738a2c
18 changed files with 541 additions and 490 deletions
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159
NodeFlow/Model/NodeBase.cs
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@@ -25,6 +25,22 @@ namespace Serein.NodeFlow.Model
Upstream,
}
public enum FlowStateType
{
/// <summary>
/// 成功（方法成功执行）
/// </summary>
Succeed,
/// <summary>
/// 失败（方法没有成功执行，不过执行时没有发生非预期的错误）
/// </summary>
Fail,
/// <summary>
/// 异常（节点没有
/// </summary>
Error,
}
/// <summary>
/// 节点基类（数据）：条件控件，动作控件，条件区域，动作区域
/// </summary>
@@ -73,21 +89,30 @@ namespace Serein.NodeFlow.Model
/// <summary>
/// 当前状态（进入真分支还是假分支，异常分支在异常中确定）
/// </summary>
public bool FlowState { get; set; } = true;
//public ConnectionType NextType { get; set; } = ConnectionType.IsTrue;
public FlowStateType FlowState { get; set; } = FlowStateType.Succeed;
public Exception Exception { get; set; } = null;
/// <summary>
/// 当前传递数据
/// </summary>
public object? FlowData { get; set; } = null;
// 正常流程节点调用
/// <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 object? Execute(DynamicContext context)
{
MethodDetails md = MethodDetails;
object? result = null;
if (!DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
{
return result;
}
if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
try
{
if (md.ExplicitDatas.Length == 0)
{
@@ -110,89 +135,76 @@ namespace Serein.NodeFlow.Model
else
{
result = ((Func<object, object[], object>)del).Invoke(md.ActingInstance, parameters);
}
}
// context.SetFlowData(result);
// CurrentData = result;
return result;
}
catch (Exception ex)
{
FlowState = FlowStateType.Error;
Exception = ex;
}
return result;
}
// 触发器调用
/// <summary>
/// 执行等待触发器的方法
/// </summary>
/// <param name="context"></param>
/// <returns>节点传回数据对象</returns>
/// <exception cref="Exception"></exception>
public virtual async Task<object?> ExecuteAsync(DynamicContext context)
{
MethodDetails md = MethodDetails;
object? result = null;
if (DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
if (!DelegateCache.GlobalDicDelegates.TryGetValue(md.MethodName, out Delegate del))
{
return result;
}
FlipflopContext flipflopContext = null;
try
{
// 调用委托并获取结果
if (md.ExplicitDatas.Length == 0)
{
// 调用委托并获取结果
FlipflopContext flipflopContext = await ((Func<object, Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance);
if (flipflopContext != null)
{
if (flipflopContext.State == FfState.Cancel)
{
throw new Exception("this async task is cancel.");
}
else
{
if (flipflopContext.State == FfState.Succeed)
{
FlowState = true;
result = flipflopContext.Data;
}
else
{
FlowState = false;
}
}
}
flipflopContext = await ((Func<object, Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance);
}
else
{
object?[]? parameters = GetParameters(context, MethodDetails);
// 调用委托并获取结果
flipflopContext = await ((Func<object, object[], Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance, parameters);
}
FlipflopContext flipflopContext = await ((Func<object, object[], Task<FlipflopContext>>)del).Invoke(MethodDetails.ActingInstance, parameters);
if (flipflopContext != null)
if (flipflopContext != null)
{
FlowState = flipflopContext.State;
if (flipflopContext.State == FlowStateType.Succeed)
{
if (flipflopContext.State == FfState.Cancel)
{
throw new Exception("取消此异步");
}
else
{
FlowState = flipflopContext.State == FfState.Succeed;
result = flipflopContext.Data;
}
result = flipflopContext.Data;
}
}
}
catch (Exception ex)
{
FlowState = FlowStateType.Error;
Exception = ex;
}
return result;
}
public async Task ExecuteStack(DynamicContext context)
/// <summary>
/// 开始执行
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task StartExecution(DynamicContext context)
{
await Task.Run(async () =>
{
await ExecuteStackTmp(context);
});
}
public async Task ExecuteStackTmp(DynamicContext context)
{
var cts = context.ServiceContainer.Get<CancellationTokenSource>();
var cts = context.ServiceContainer.GetOrInstantiate<CancellationTokenSource>();
Stack<NodeBase> stack = [];
stack.Push(this);
@@ -202,32 +214,38 @@ namespace Serein.NodeFlow.Model
// 从栈中弹出一个节点作为当前节点进行处理
var currentNode = stack.Pop();
// 设置方法执行的对象
if (currentNode.MethodDetails != null)
{
currentNode.MethodDetails.ActingInstance ??= context.ServiceContainer.Get(MethodDetails.ActingInstanceType);
} // 设置方法执行的对象
currentNode.MethodDetails.ActingInstance ??= context.ServiceContainer.GetOrInstantiate(MethodDetails.ActingInstanceType);
}
// 获取上游分支，首先执行一次
var upstreamNodes = currentNode.UpstreamBranch;
for (int i = upstreamNodes.Count - 1; i >= 0; i--)
{
upstreamNodes[i].PreviousNode = currentNode;
await upstreamNodes[i].ExecuteStack(context);
await upstreamNodes[i].StartExecution(context);
}
if (currentNode.MethodDetails != null && currentNode.MethodDetails.MethodDynamicType == DynamicNodeType.Flipflop)
{
// 触发器节点
currentNode.FlowData = await currentNode.ExecuteAsync(context);
}
else
{
// 动作节点
currentNode.FlowData = currentNode.Execute(context);
}
var nextNodes = currentNode.FlowState ? currentNode.SucceedBranch
: currentNode.FailBranch;
var nextNodes = currentNode.FlowState switch
{
FlowStateType.Succeed => currentNode.SucceedBranch,
FlowStateType.Fail => currentNode.FailBranch,
FlowStateType.Error => currentNode.ErrorBranch,
_ => throw new Exception("非预期的枚举值")
};
// 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--)
@@ -238,7 +256,9 @@ namespace Serein.NodeFlow.Model
}
}
/// <summary>
/// 获取对应的参数数组
/// </summary>
public object[]? GetParameters(DynamicContext context, MethodDetails md)
{
// 用正确的大小初始化参数数组
@@ -355,7 +375,12 @@ namespace Serein.NodeFlow.Model
return parameters;
}
/// <summary>
/// json文本反序列化为对象
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <returns></returns>
private dynamic? ConvertValue(string value, Type targetType)
{
try