// Create scope dependency
public object BindPerScope(IContext context)
{
var key = context.Request.Service;
MicrodotNinjectScopeParameter scope =
context.Parameters
.OfType <MicrodotNinjectScopeParameter>()
.LastOrDefault();
if (scope != null)
{
//Handle the lock inside in the cache item scope
return(scope.GetORCreate(key, () => context.Kernel.Get(key, ResolveRealParameter.instance)));
}
// Can occur if resolve by Ikeranl/ Fun<T>/ IResoltionRoot
// Scope only transfer from the serviceProvider
throw new GlobalScopeNotSupportFromNinject($"{key.FullName}");
}
public MicrodotServiceProviderWithScope(IResolutionRoot resolver)
{
_cacheItem = new ScopeCache();
_microdotNinectScopParameter = new MicrodotNinjectScopeParameter(_cacheItem, this);
_resolver = resolver;
}
public void ConfigureServices(IServiceCollection services)
{
DeadlockDetector.validate(services);
foreach (var descriptor in services)
{
IBindingWhenInNamedWithOrOnSyntax <object> binding;
if (descriptor.ImplementationType != null)
{
binding = Kernel.Bind(descriptor.ServiceType).To(descriptor.ImplementationType);
}
else if (descriptor.ImplementationFactory != null)
{
binding = Kernel.Bind(descriptor.ServiceType).ToMethod(context =>
{
var serviceProvider = context.Kernel.Get <IServiceProvider>();
return(descriptor.ImplementationFactory(serviceProvider));
});
}
else
{
binding = Kernel.Bind(descriptor.ServiceType).ToConstant(descriptor.ImplementationInstance);
}
switch (descriptor.Lifetime)
{
case ServiceLifetime.Singleton:
binding.InSingletonScope();
break;
case ServiceLifetime.Scoped:
// Determent when to return the real instance
binding.When((r) => r.Parameters.Contains(ResolveRealParameter.instance));
// Return instance from scope cache or use the realBinding to create it
Kernel.Bind(descriptor.ServiceType)
.ToMethod(BindPerScope).InTransientScope();
break;
case ServiceLifetime.Transient:
binding.InTransientScope();
break;
}
}
// note !! every thing that cache, ServiceProvider should be Transient to enable scope inheritance
Kernel.Rebind(typeof(IKeyedServiceCollection <,>)).To(typeof(KeyedServiceCollection <,>)).InTransientScope();
Kernel.Rebind(typeof(ILoggerFactory)).To(typeof(NonBlockingLoggerFactory)).InSingletonScope();
Kernel.Bind <IServiceScopeFactory>().To <MicrodotServiceScopeFactory>().InSingletonScope();
// Support unique scoping created by the IServiceScopeFactory
Kernel.Bind <MicrodotServiceProviderWithScope>().ToSelf().InTransientScope();
//Support Global scoping
Kernel.Bind <IGlobalServiceProvider>().To <MicrodotServiceProviderWithScope>().InSingletonScope();
//Support inherit scope and global scoping
Kernel.Bind <IServiceProvider>().ToMethod(context =>
{
MicrodotNinjectScopeParameter scope =
context.Parameters
.OfType <MicrodotNinjectScopeParameter>()
.LastOrDefault();
bool hasScope = (scope != null);
if (hasScope)
{
return(scope.ServiceProvider);
}
return(context.Kernel.Get <IGlobalServiceProvider>());
}).InTransientScope();
}
