/**
* @param string $identity
*
* @throws \RuntimeException if provider did not provide a user implementation.
*
* @return \Symfony\Component\Security\Core\User\UserInterface
*/
protected function getProviderUser($identity, array $attributes)
{
try {
$user = $this->userProvider->loadUserByUsername($identity);
} catch (UsernameNotFoundException $e) {
if (false == $this->createIfNotExists) {
throw $e;
}
$user = $this->userProvider->createUserFromIdentity($identity, $attributes);
}
if (false == $user instanceof UserInterface) {
throw new \RuntimeException('User provider did not return an implementation of user interface.');
}
return $user;
}
