c# - Topshelf需要使用Autofac的Quartz作业工厂

我正在尝试将TopShelf与Quartz.net和Autofac一起使用。我下面的代码工作正常。但是，这一行:

cfg.UsingQuartzJobFactory(() => container.Resolve<IJobFactory>());

似乎是错误的做事方式。有没有更好的办法告诉Topshelf使用自定义的autofac jobfactory？该工厂的生命周期范围是什么？我担心这行代码会在将来的某个时候让我头疼。当不再需要该工厂时，我该如何释放它？这条线可以吗？

class Poller : IJob
{
    private readonly ILogger _log;

    public Poller(ILogger log)
    {
        _log = log;
        _log.Info("Instantiating...");
    }

    public void Execute(IJobExecutionContext context)
    {
        _log.Info("Executing...");
    }
}

class Program
{
    static Autofac.IContainer BuildContainer()
    {
        var builder = new ContainerBuilder();

        builder.RegisterModule<NLogModule>();
        builder.RegisterModule<QuartzAutofacFactoryModule>();
        builder.RegisterModule(new QuartzAutofacJobsModule(typeof(Poller).Assembly));

        var container = builder.Build();
        return container;
    }

    static void Main(string[] args)
    {
        var container = BuildContainer();

        HostFactory.Run(cfg =>
        {
            cfg.UseNLog();
            cfg.UseAutofacContainer(container);
            cfg.SetDescription("DESCRIPTION");
            cfg.SetDisplayName("DISPLAY");
            cfg.SetServiceName("NAME");

            cfg.UsingQuartzJobFactory(() => container.Resolve<IJobFactory>());

            cfg.ScheduleQuartzJobAsService(q =>
            {
                q.WithJob(() => JobBuilder.Create<Poller>().Build());
                q.AddTrigger(() => TriggerBuilder.Create().WithSimpleSchedule(b => b.WithIntervalInSeconds(20).RepeatForever()).Build());
            });

            cfg.StartAutomatically();
            cfg.RunAsLocalSystem();

        });
    }
}

供引用:TopShelf.Quartz.ScheduleHobHostConfiguratorExtensions

另请引用:Autofac.Extras.Quartz.QuartzAutofacFactoryModule

最佳答案

我认为您应该使用容器初始化Crystal Server，此示例使用unity，但是我确定可以与其他容器一起使用。

try
        {
            var container = new UnityContainer();
            schedulerFactory = CreateSchedulerFactory();
            quartzscheduler = GetScheduler();
            SyncPost.Initialize.RepositoryConfig(container);
            SyncPost.Initialize.AddToSchedulerContextCustomVars(quartzscheduler, container);
            quartzscheduler.JobFactory = new JobFactoryInjection(container);

        }
        catch (Exception e)
        {
            logger.Error("Server initialization failed:" + e.Message, e);
            throw;
        }

JobFactoryInjection在哪里实现IJobFactory:

 public class JobFactoryInjection : IJobFactory
{

        private readonly UnityContainer container = new UnityContainer();

        public JobFactoryInjection(UnityContainer container)
        {

            if (container == null) throw new ArgumentNullException("container", "Container is null");
            this.container = container;
        }



    public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler) {


            // Return job registrated in container
            bundle.JobDetail.JobDataMap.Put(SyncUtils.ContextKeyCenterCode, scheduler.Context.Get(SyncUtils.ContextKeyCenterCode));
            return (IJob)container.Resolve(bundle.JobDetail.JobType);

    }

    public void ReturnJob(IJob job) {

    }
}

关于JobFactory的生命周期，不用担心。从Quartz文档中:
“JobFactory只是激活了作业类的新实例。您可能想创建自己的JobFactory实现，以完成诸如使应用程序的IoC或DI容器生成/初始化作业实例之类的事情。”