可以看到LunaHangfireRunnerBase类的属性注入

Posted 2020-10-27 私人回忆海滩

整合了一个命令行程序的框架(1)

1. 
   

   [Audited]
   public class DemoService : LunaServiceBase, IDemoService
   {
       public string GetMessage(string name)
       {
           Logger.Info($"GetMessage {name}");
           return "测试";
       }
   
       public string GetDemo(DemoModel model)
       {
           var msg = $"{model.Name}: {model.Age}";
           return msg;
       }
   }
   

   同时在start上增加了一个可选参数.目前只有一个设置项,就是是否开启审计日志功能.如果不开启的话,标记了aduited的service也不会输出审计日志

2. 定时任务的用法和之前的还是有一些区别.如要体现在runner上.之前的runner要继承LunaRunnerBase,如果使用hangfire的话要继承LunaHangfireRunnerBase.同时在run方法里增加定时任务

   public class Runner : LunaHangfireRunnerBase
   {
       public override void Run()
       {
           RecurringJob.AddOrUpdate<IJobService>(service => service.OutputLog(), Cron.Minutely);
       }
   }
   

   启动的方法还是和之前一样的使用starter即可.这里有一点需要注意一下.一定要在调用starter的run方法之前配置好hangfire

   GlobalConfiguration.Configuration.UseSqlServerStorage("default");
   

   这里推荐使用topshelf之类的框架把程序搞成服务

代码

和上一版对比的话,这次主要的变更在starter类构造函数中

private Starter(Type runnerType, StarterOption option)
{
    Container = new WindsorContainer();
    Container.Kernel.ComponentRegistered += (key, handler) =>
    {
        if (option.DisableAudit) return;

        if (handler.ComponentModel.Implementation.IsDefined(typeof(AuditedAttribute), true))
        {
            handler.ComponentModel.Interceptors.Add(new InterceptorReference(typeof(AuditingInterceptor)));
        }
    };

    Container.Register(
        Classes.FromAssemblyInThisApplication(runnerType.Assembly)
            .IncludeNonPublicTypes()
            .BasedOn<ITransientDependency>()
            .WithServiceAllInterfaces()
            .If(type => !type.IsGenericTypeDefinition)
            .WithService.Self()
            .WithService.DefaultInterfaces()
            .LifestyleTransient()
    );

    Container.Register(
        Classes.FromAssemblyInThisApplication(runnerType.Assembly)
            .IncludeNonPublicTypes()
            .BasedOn<ISingletonDependency>()
            .If(type => !type.IsGenericTypeDefinition)
            .WithService.Self()
            .WithService.DefaultInterfaces()
            .LifestyleSingleton()
    );

    Container.Register(
        Classes.FromAssemblyInThisApplication(runnerType.Assembly)
            .IncludeNonPublicTypes()
            .BasedOn<IInterceptor>()
            .If(type => !type.IsGenericTypeDefinition)
            .WithService.Self()
            .LifestyleTransient()
    );

    Container.Register(
        Component.For<Starter>().Instance(this).LifestyleSingleton()
    );
}

新增注册了ComponentRegistered事件.在组件注册ioc完成时检测了组件是否声明了AuditedAttribute特性,如果有声明的话就会给组件增加一个拦截器实现审计日志.

另外就是把starter自己也注册进了ioc,这其实是为了替换hangfire的JobActivator时使用ioc容器.

public abstract class LunaHangfireRunnerBase : LunaRunnerBase
{
    private BackgroundJobServer _backgroundJobServer;
    public Starter Starter { get; set; }
    public override void Init()
    {
        base.Init();
        JobActivator.Current = new WindsorJobActivator(Starter.Container.Kernel);
        _backgroundJobServer = new BackgroundJobServer();
    }

    public override void Stop()
    {
        _backgroundJobServer.Dispose();
    }
}

可以看到LunaHangfireRunnerBase类的属性注入了starter.本来考虑构造注入的,但是使用构造注入的话,继承这个类的runner在代码上就会看起来不是很纯洁,所以放弃了

GitHub: https://github.com/lun3322/Luna.Service

这里有完整的代码和例子,没写单元测试大家凑合看吧.欢迎star

NuGet1: Install-Package Luna.Service

NuGet2: Install-Package Luna.Service.Nlog

NuGet2: Install-Package Luna.Service.Hangfire