Psr\Log\LoggerInterface::emergency PHP Method

    public function emergency($message, array $context = array());

 /**
  * {@inheritdoc}
  */
 public function log($message, $level)
 {
     $message .= ' ' . $this->request->getRequestUri();
     if ($this->logLevel >= $level) {
         switch ($level) {
             case self::EMERGENCY:
                 $this->logger->emergency($message);
                 break;
             case self::ALERT:
                 $this->logger->alert($message);
                 break;
             case self::CRITICAL:
                 $this->logger->critical($message);
                 break;
             case self::ERROR:
                 $this->logger->error($message);
                 break;
             case self::WARNING:
                 $this->logger->warning($message);
                 break;
             case self::NOTICE:
                 $this->logger->notice($message);
                 break;
             case self::INFO:
                 $this->logger->info($message);
                 break;
             default:
                 $this->logger->debug($message);
         }
     }
 }