/**
  * Retrieves the available security identities for the given token.
  *
  * @param \Symfony\Component\Security\Core\Authentication\Token\TokenInterface $token
  *
  * @return array An array of SecurityIdentityInterface implementations
  */
 public function getSecurityIdentities(TokenInterface $token)
 {
     $sids = parent::getSecurityIdentities($token);
     if ($token->getUser() instanceof \BackBee\CoreDomain\Security\User) {
         foreach ($token->getUser()->getGroups() as $group) {
             $securityIdentity = new UserSecurityIdentity($group->getObjectIdentifier(), ClassUtils::getRealClass($group));
             array_unshift($sids, $securityIdentity);
         }
     }
     return $sids;
 }
 /**
  * {@inheritdoc}
  */
 public function getSecurityIdentities(TokenInterface $token)
 {
     $sids = parent::getSecurityIdentities($token);
     // business unit security identities
     if (!$token instanceof AnonymousToken) {
         $user = $token->getUser();
         if ($user instanceof User) {
             foreach ($user->getBusinessUnits() as $businessUnit) {
                 $sids[] = BusinessUnitSecurityIdentity::fromBusinessUnit($businessUnit);
             }
         }
     }
     return $sids;
 }