public function loadRoleByIdentifier($name)
    {
        $response = $this->client->request(
            'GET',
            $this->requestParser->generate('roleByIdentifier', array('role' => $name)),
            new Message(
                array('Accept' => $this->outputVisitor->getMediaType('RoleList'))
            )
        );

        $result = $this->inputDispatcher->parse($response);

        return reset($result);
    }