FlowMaker 0.1.0-preview1

This is a prerelease version of FlowMaker.
There is a newer prerelease version of this package available.
See the version list below for details.
dotnet add package FlowMaker --version 0.1.0-preview1                
NuGet\Install-Package FlowMaker -Version 0.1.0-preview1                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="FlowMaker" Version="0.1.0-preview1" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FlowMaker --version 0.1.0-preview1                
#r "nuget: FlowMaker, 0.1.0-preview1"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install FlowMaker as a Cake Addin
#addin nuget:?package=FlowMaker&version=0.1.0-preview1&prerelease

// Install FlowMaker as a Cake Tool
#tool nuget:?package=FlowMaker&version=0.1.0-preview1&prerelease                

FlowMaker

FlowMaker是一个基于.NET8的流程编辑执行框架

为您提供简洁API, 方便的中间件开发体验

流程

FlowManager,可进行初始化,执行,停止,发送事件等操作。

IFlowProvider,可以对流程序列进行保存和读取。

步骤

  1. 无参数步骤
public partial class MyClass : IStep
{
    public static string Category => "类别";

    public static string Name => "名称";

    public Task Run(StepContext stepContext, CancellationToken cancellationToken)
    {
        throw new NotImplementedException();
    }
}
	//注册相关步骤
	hostApplicationBuilder.Services.AddFlowStep<MyClass>();
  1. 有输入输出的步骤
public partial class MyClass : IStep
{
    public static string Category => "Test1";

    public static string Name => "输入输出各一个";

    [Input]
    public int Input { get; set; }
    [Output]
    public int Output { get; set; }
    
    public Task Run( StepContext stepContext, CancellationToken cancellationToken)
    {
        Output = Input * 2;
        return Task.CompletedTask;
    }
}

输入参数可以添加多种特性标签

    [DefaultValue("3")]
    [Description("属性2")]
    [Option("三", "3")]
    [Option("四", "4")]
    public int Prop2 { get; set; }
  1. 将整个类转换为步骤,上下文和取消令牌分别为第一个参数与最后一个参数,如果不需要可以不填写。
    [Steps("Category")]
    public class AllStepMode
    {
        [Description("算法A")]//通过特性标签改变显示名称
        public (int, string) Test(int ss = 3, CancellationToken cancellationToken = default)
        {
            return (ss, "ss");
        }

        public int Test2(StepContext stepContext, DayOfWeek ss, CancellationToken cancellationToken)
        {
            return 1;
        }
    }
	//注册相关步骤
	hostApplicationBuilder.Services.AddScoped<AllStepMode>();
	hostApplicationBuilder.Services.AddAllStepModeFlowStep();
  1. 将接口转换为步骤,与将整个类转换为步骤类似,但是输入中会多出配置具体实现的参数。
 [Steps("FFF")]
 public interface ITestStep
 {
     Task<int> Test(StepContext stepContext, int ss = 2);
 }
    //注册相关步骤
	hostApplicationBuilder.Services.AddITestStepFlowStep();
    hostApplicationBuilder.Services.AddKeyedScoped<ITestStep, TestStep1>("Test1");
    hostApplicationBuilder.Services.AddKeyedScoped<ITestStep, TestStep2>("Test2");
	//配置选项
    hostApplicationBuilder.Services.Configure<ITestStepInstanceOption>(c =>
    {
        c.Instances.Add(new FlowMaker.NameValue("Test1", "Test1"));
        c.Instances.Add(new FlowMaker.NameValue("Test2", "Test2"));
    });
  1. 选项提供类,提供可变化的参数选项下拉框
    public partial class PortProvider : IOptionProvider<string>
    {
        public static string DisplayName => "串口";

        public async Task<IEnumerable<NameValue>> GetOptions()
        {
            await Task.CompletedTask;
            return [new("oo", "22"), new("oo22", "2211")];
        }
    }
	//注册选项提供类
	hostApplicationBuilder.Services.AddFlowOption<PortProvider>();

转换器

配置流程时可以对输入输出的信息进行加工,此时需要用到转换器,实现方式于步骤类似,但是根据转换器的类型有固定的返回类型

public partial class ValueConverter : IDataConverter<int>
{
    public static string Category => "Test1";

    public static string Name => "转换器1";

    [Input]
    public int Prop1 { get; set; }
    [Input]
    public int Prop2 { get; set; }

    public Task<int> Convert(FlowContext? context, CancellationToken cancellationToken)
    {
        return Task.FromResult(Prop1 + Prop2);
    }
}
	//注册转换器
	hostApplicationBuilder.Services.AddFlowConverter<ValueConverter>();

中间件

提供了5种中间件

  1. IFlowMiddleware 流程的开始与结束
  2. IStepMiddleware 步骤的开始与结束
  3. IStepOnceMiddleware 步骤的单次执行时的开始与结束(如重复与重试)
  4. IEventMiddleware 事件触发时
  5. ILogMiddleware 记录日志时
public interface IFlowMiddleware
{
    Task OnExecuting(FlowContext flowContext, FlowState runnerState, CancellationToken cancellationToken);
    Task OnExecuted(FlowContext flowContext, FlowState runnerState, Exception? exception, CancellationToken cancellationToken);
}
public interface IStepMiddleware
{
    Task OnExecuting(FlowContext flowContext, FlowStep flowStep, StepStatus step, CancellationToken cancellationToken);
    Task OnExecuted(FlowContext flowContext, FlowStep flowStep, StepStatus step, Exception? exception, CancellationToken cancellationToken);
}
public interface IStepOnceMiddleware
{
    Task OnExecuting(FlowContext flowContext, FlowStep flowStep, StepStatus step, StepOnceStatus stepOnceStatus, CancellationToken cancellationToken);
    Task OnExecuted(FlowContext flowContext, FlowStep flowStep, StepStatus step, StepOnceStatus stepOnceStatus, Exception? exception, CancellationToken cancellationToken);
}
public interface IEventMiddleware
{
    Task OnExecuting(FlowContext flowContext, string eventName, string? eventData, CancellationToken cancellationToken);
}

public interface ILogMiddleware
{
    Task OnLog(FlowContext flowContext, FlowStep flowStep, StepStatus step, StepOnceStatus stepOnceStatus, LogInfo logInfo, CancellationToken cancellationToken);
}

待完善内容

  • 对一个类中的方法生成为步骤,可以使用Scope域实现一个流程过程中的状态保持。自动解析输入输出参数
    • 方法生成步骤是需要匹配参数, 将FlowContext等加进去.
    • 从代码备注中获取更多信息
    • 对接口生成的步骤添加可选实例的参数
  • 实现流程内的分组功能
  • 子流程的日志问题
  • 对日志进行分类显示与保存
  • 优化流程编辑方式
  • 优化代码编辑流程的API(需要设置项过多,延后)
  • 完善文档
  • 测试
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

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FlowMaker.UIBase

UI基础库

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Version Downloads Last updated
0.1.0-preview3 65 5/9/2024
0.1.0-preview2 65 5/7/2024
0.1.0-preview1 78 5/6/2024