public function listAction()
    {
        $repository = $this->repositories->get('Applications/Application');
        $applicationId = $this->params()->fromQuery('applicationId', 0);
        $application = $repository->find($applicationId); /* @var \Applications\Entity\Application $application */
        
        $this->acl($application, 'read');
        
        return array(
            'comments' => $application->getComments(),
        );
    }