HostFactory.New(x =>
        {
          // 可以定义不需要接口依赖性的服务，这只是为了
          //在此示例中显示并未使用。
          x.Service<SampleSansInterfaceService>(s =>
            {
              s.ConstructUsing(() => new SampleSansInterfaceService());
              s.WhenStarted(v => v.Start());
              s.WhenStopped(v => v.Stop());
            });
        });

HostFactory.Run(x =>
        {
          x.UseLog4Net("log4net.config");
          x.UseAssemblyInfoForServiceInfo();
          bool throwOnStart = false;
          bool throwOnStop = false;
          bool throwUnhandled = false;
          x.Service(settings => new SampleService(throwOnStart, throwOnStop, throwUnhandled), s =>
          {
            s.BeforeStartingService(_ => Console.WriteLine("BeforeStart"));
            s.BeforeStoppingService(_ => Console.WriteLine("BeforeStop"));
          });
          x.SetStartTimeout(TimeSpan.FromSeconds(10));
          x.SetStopTimeout(TimeSpan.FromSeconds(10));
          x.EnableServiceRecovery(r =>
            {
              r.RestartService(3);
              r.RunProgram(7, "ping google.com");
              r.RestartComputer(5, "message");

              r.OnCrashOnly();
              r.SetResetPeriod(2);
            });
          x.AddCommandLineSwitch("throwonstart", v => throwOnStart = v);
          x.AddCommandLineSwitch("throwonstop", v => throwOnStop = v);
          x.AddCommandLineSwitch("throwunhandled", v => throwUnhandled = v);
          x.OnException((exception) =>
          {
            Console.WriteLine("Exception thrown - " + exception.Message);
          });
        });

public static Host New(Action<HostConfigurator> configureCallback)
    {
      try
      {
        if (configureCallback == null)
          throw new ArgumentNullException("configureCallback");
        var configurator = new HostConfiguratorImpl();
        Type declaringType = configureCallback.Method.DeclaringType;
        if (declaringType != null)
        {
          string defaultServiceName = declaringType.Namespace;
          if (!string.IsNullOrEmpty(defaultServiceName))
            configurator.SetServiceName(defaultServiceName);
        }
        configureCallback(configurator);
        configurator.ApplyCommandLine();
        ConfigurationResult result = ValidateConfigurationResult.CompileResults(configurator.Validate());
        if (result.Message.Length > 0)
        {
          HostLogger.Get(typeof(HostFactory))
               .InfoFormat("Configuration Result:\n{0}", result.Message);
        }
        return configurator.CreateHost();
      }
      catch (Exception ex)
      {
        HostLogger.Get(typeof(HostFactory)).Error("An exception occurred creating the host", ex);
        HostLogger.Shutdown();
        throw;
      }
    }

public static TopshelfExitCode Run(Action<HostConfigurator> configureCallback)
    {
      try
      {
        return New(configureCallback)
          .Run();
      }
      catch (Exception ex)
      {
        HostLogger.Get(typeof(HostFactory))
             .Error("The service terminated abnormally", ex);
        HostLogger.Shutdown();
        
        return TopshelfExitCode.AbnormalExit;
      }
    }