Heartbeat monitor IoC registry

heartbeatregistry.cs

using System;
using System.Configuration;
using CityIQ.HealthMonitor.Notifiers;
using CityIQ.HealthMonitor.Testers;
using StructureMap.Attributes;
using StructureMap.Configuration.DSL;

namespace CityIQ.HealthMonitor
{
    public class HeartbeatRegistry : Registry
    {
        private const string CircuitBreakerThreshold = "Circuit.Breaker.Threshold";

        public HeartbeatRegistry()
        {
            TimeSpan circuitBreakerTimeout = ConfiguredTimeSpan("Circuit.Breaker.Timeout.Seconds");
            TimeSpan websiteTimeout = ConfiguredTimeSpan("Website.Timeout.Seconds");

            // All notification methods
            ForRequestedType<INotifier>()
                .AddInstances(x => x.OfConcreteType<ConsoleNotifier>().WithName("console"))
                .TheDefault.Is.TheInstanceNamed("console");


            // Default circuit breaker - use this for web tests
            ForRequestedType<ICircuitBreaker>()
                .CacheBy(InstanceScope.Singleton)
                .TheDefault.Is.OfConcreteType<CircuitBreaker>()
                .WithCtorArg("threshold").EqualToAppSetting(CircuitBreakerThreshold)
                .CtorDependency<TimeSpan>().Is(circuitBreakerTimeout);

            // Circuit breaker for db tests
            ForRequestedType<ICircuitBreaker>().AsSingletons()
                .AddInstances(x =>
                                  {
                                      x.OfConcreteType<CircuitBreaker>()
                                          .WithName("SpatialDb")
                                          .WithCtorArg("threshold").EqualToAppSetting(CircuitBreakerThreshold)
                                          .CtorDependency<TimeSpan>().Is(circuitBreakerTimeout);
                                      x.OfConcreteType<CircuitBreaker>()
                                          .WithName("Map")
                                          .WithCtorArg("threshold").EqualToAppSetting(CircuitBreakerThreshold)
                                          .CtorDependency<TimeSpan>().Is(circuitBreakerTimeout);
                                  });

            ForRequestedType<IResourceTester>().TheDefault.Is.OfConcreteType<WebSite>()
                .WithCtorArg("name").EqualTo("CityIQ")
                .WithCtorArg("target").EqualToAppSetting("CityIQ.Url")
                .CtorDependency<TimeSpan>().Is(websiteTimeout);
            ForRequestedType<IHeartbeatMonitor>().TheDefaultIsConcreteType<HeartbeatMonitor>();
        }

        private static TimeSpan ConfiguredTimeSpan(string key)
        {
            return TimeSpan.FromSeconds(Convert.ToDouble(ConfigurationManager.AppSettings[key]));
        }
    }
}