public object Resolve(ServiceIdentity identity)
{
var activator = GetActivator(identity);
if (activator == null)
{
return(null);
}
var context = new ActivationContext(this);
var instance = activator.ActivateService(context);
return(instance);
}
public ServiceNotRegisteredException(ServiceIdentity identity)
: this(identity.ServiceType, identity.ServiceName)
{
}
private static string CreateMessage(ServiceIdentity identity)
{
return((identity.ServiceName == null)
? string.Format("An activator configuration has already been set for the registration of a service of type '{0}'.", identity.ServiceType)
: string.Format("An activator configuration has already been set for the registration of a service of type '{0}' with the name '{1}.", identity.ServiceType, identity.ServiceName));
}
public ActivatorConfigurationAlreadyRegisteredException(ServiceIdentity identity)
: base(CreateMessage(identity))
{
Identity = identity;
}
private static string CreateMessage(ServiceIdentity identity)
{
return((identity.ServiceName == null)
? string.Format("A service of type '{0}' has already been registered.", identity.ServiceType)
: string.Format("A service of type '{0}' has already been registered with the name '{1}.", identity.ServiceType, identity.ServiceName));
}
private IActivator TryCreateGenericActivator(ServiceIdentity identity)
{
if (identity.ServiceType.IsConstructedGenericType)
{
var genericTypeDefinition = identity.ServiceType.GetGenericTypeDefinition();
var unboundActivatorGroup = _activatorGroups.TryGetValue(genericTypeDefinition);
if (unboundActivatorGroup != null)
{
var genericArguments = identity.ServiceType.GenericTypeArguments;
var boundActivators = unboundActivatorGroup.
GetAllActivators().
OfType <IUnboundActivator>().
Select(a => a.ConstructBoundActivator(genericArguments));
foreach (var activator in boundActivators)
{
Register(activator);
}
var boundActivator = TryGetRegisteredActivator(identity);
if (boundActivator != null)
{
return(boundActivator);
}
}
else
{
var realServiceType = identity.ServiceType.GenericTypeArguments[0];
if (genericTypeDefinition == FuncServiceType)
{
var realIdentity = new ServiceIdentity(realServiceType, identity.ServiceName);
var realActivator = GetActivator(realIdentity);
if (realActivator != null)
{
return(new FuncActivator(identity, realActivator));
}
}
else if (genericTypeDefinition == LazyServiceType)
{
var realIdentity = new ServiceIdentity(realServiceType, identity.ServiceName);
var realActivator = GetActivator(realIdentity);
if (realActivator != null)
{
return(new LazyActivator(identity, realActivator));
}
}
else if (
genericTypeDefinition == EnumerableServiceType ||
genericTypeDefinition == CollectionServiceType ||
genericTypeDefinition == ListServiceType)
{
var itemActivators = GetAllActivators(realServiceType);
return(new ArrayActivator(identity, realServiceType, itemActivators));
}
}
}
return(null);
}
