public function logoutAction()
 {
     $auth = new AuthenticationService();
     if ($auth->hasIdentity()) {
         $identity = $auth->getIdentity();
     }
     $auth->clearIdentity();
     $sessionManager = new \Zend\Session\SessionManager();
     $sessionManager->forgetMe();
     return $this->redirect()->toRoute('application/default', array('controller' => 'index', 'action' => 'index'));
 }
 /**
  * {@inheritDoc}
  */
 public function getIdentity()
 {
     return $this->authenticationService->getIdentity();
 }