/**
* Authenticates a provided access token
*
* @param AccessControlEvent $event
* @return \Parrot\API\Problem\Response\ProblemResponse
*/
public function __invoke(AccessControlEvent $event)
{
// Ensure we clear out any previously known Identity
$event->getAuthenticationService()->clearIdentity();
// Attempt to Authenticate
$result = $event->getAuthenticationService()->getAdapter()->authenticate();
if ($result instanceof Result) {
$event->setAuthenticationResult($result);
}
return $result;
}
