public bool TryAppendBinding(Type queryType, BindingDescription bindingDescription)
{
if (queryType == null)
{
throw new ArgumentNullException(nameof(queryType));
}
if (bindingDescription == null)
{
throw new ArgumentNullException(nameof(bindingDescription));
}
if (_typesCollection.ContainsKey(queryType) || _typesCollectionResolved.ContainsKey(queryType))
{
return(false);
}
_typesCollectionResolved[queryType] = new BindingDescriptionOrdered(bindingDescription, _typesCollectionResolved.Count);
return(true);
}
public IEnumerable <T> GetInstances <T>(bool storeInstance, bool useSingleInstance) where T : class
{
if (!_typesCollection.TryGetValue(typeof(T), out var bindingDescription))
{
if (!_typesCollectionResolved.TryGetValue(typeof(T), out bindingDescription))
{
var resolver = _bindingsResolver;
if (resolver == null)
{
return(null);
}
var bindingDescriptionPossible = resolver.ResolveType <T>(storeInstance);
if (bindingDescriptionPossible != null)
{
// здесь должны быть проверки.
_typesCollectionResolved[typeof(T)] = new BindingDescriptionOrdered(bindingDescriptionPossible, _typesCollectionResolved.Count);
bindingDescription = new BindingDescriptionOrdered(bindingDescriptionPossible, 0);
}
else
{
// Повторная проверка - во время распознавания типа могли быть загружены дополнительные сборки, предоставившие новые привязки.
if (!_typesCollectionResolved.TryGetValue(typeof(T), out bindingDescription))
{
return(null);
}
}
}
}
if (bindingDescription == null)
{
return(null);
}
if (!bindingDescription.Item1.Instances.IsNullOrEmpty())
{
return(bindingDescription.Item1.Instances.Select(x => (T)x));
}
else
{
lock (bindingDescription.Item1.InstancesSetSyncRoot)
{
if (!bindingDescription.Item1.Instances.IsNullOrEmpty())
{
return(bindingDescription.Item1.Instances.Select(x => (T)x));
}
else if (bindingDescription.Item1.BindedTypes.Count > 0)
{
var typesToCreateInstance = useSingleInstance ? bindingDescription.Item1.BindedTypes.Take(1) : bindingDescription.Item1.BindedTypes;
var createdInstances = typesToCreateInstance.Select(x => (T)x.Activator()).ToList();
var activatingHadlersSnapshot = _activatingHandlers?.ToList();
if (activatingHadlersSnapshot != null)
{
createdInstances.ForEach(instance => activatingHadlersSnapshot.ForEach(handler => handler.OnInstanceActivating <T>(instance)));
}
if (storeInstance)
{
bindingDescription.Item1.Instances = createdInstances;
}
var activatedHadlersSnapshot = _activatedHandlers?.ToList();
if (activatedHadlersSnapshot != null)
{
createdInstances.ForEach(instance => activatedHadlersSnapshot.ForEach(handler => handler.OnInstanceActivated <T>(instance)));
}
return(createdInstances);
}
}
}
return(null);
}