public object Execute()
{
if (_executed)
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, ComponentActivationResources.ActivationAlreadyExecuted, this.ComponentRegistration));
}
_executed = true;
object?decoratorTarget = null;
var sharing = _decoratorTargetComponent != null
? _decoratorTargetComponent.Sharing
: ComponentRegistration.Sharing;
var resolveParameters = Parameters as Parameter[] ?? Parameters.ToArray();
if (!_activationScope.TryGetSharedInstance(ComponentRegistration.Id, out _newInstance))
{
_newInstance = sharing == InstanceSharing.Shared
? _activationScope.CreateSharedInstance(ComponentRegistration.Id, () => CreateInstance(Parameters))
: CreateInstance(Parameters);
}
decoratorTarget = _newInstance;
_newInstance = InstanceDecorator.TryDecorateRegistration(
_service,
ComponentRegistration,
_newInstance,
_activationScope,
resolveParameters);
if (_newInstance != decoratorTarget)
{
ComponentRegistration.RaiseActivating(this, resolveParameters, ref _newInstance);
}
var handler = InstanceLookupEnding;
handler?.Invoke(this, new InstanceLookupEndingEventArgs(this, NewInstanceActivated));
StartStartableComponent(decoratorTarget);
return(_newInstance);
}
