public static IEnumerable <IServiceDescriptor> GetDefaultServices(IConfiguration configuration)
{
var describer = new ServiceDescriber(configuration);
yield return(describer.Transient <IHostingEngine, HostingEngine>());
yield return(describer.Transient <IServerManager, ServerManager>());
yield return(describer.Transient <IStartupManager, StartupManager>());
yield return(describer.Transient <IStartupLoaderProvider, StartupLoaderProvider>());
yield return(describer.Transient <IBuilderFactory, BuilderFactory>());
yield return(describer.Transient <IHttpContextFactory, HttpContextFactory>());
yield return(describer.Transient <ITypeActivator, TypeActivator>());
yield return(describer.Instance <IApplicationLifetime>(new ApplicationLifetime()));
// TODO: We expect this to be provide by the runtime eventually.
yield return(describer.Instance <ILoggerFactory>(new NullLoggerFactory()));
yield return(new ServiceDescriptor
{
ServiceType = typeof(IContextAccessor <>),
ImplementationType = typeof(ContextAccessor <>),
Lifecycle = LifecycleKind.Scoped
});
if (PlatformHelper.IsMono)
{
#if NET45
yield return(describer.Instance <IDataProtectionProvider>(DataProtectionProvider.CreateFromLegacyDpapi()));
#endif
}
else
{
// The default IDataProtectionProvider is a singleton.
// Note: DPAPI isn't usable in IIS where the user profile hasn't been loaded, but loading DPAPI
// is deferred until the first call to Protect / Unprotect. It's up to an IIS-based host to
// replace this service as part of application initialization.
yield return(describer.Instance <IDataProtectionProvider>(DataProtectionProvider.CreateFromDpapi()));
}
}