LoggerChannel::log

public LoggerChannel::log($level, $message, array $context = array())

public function log($level, $message, array $context = array()) {
  if ($this->callDepth == self::MAX_CALL_DEPTH) {
    return;
  }
  $this->callDepth++;

  // Merge in defaults.
  $context += array(
    'channel' => $this->channel,
    'link' => '',
    'user' => NULL,
    'uid' => 0,
    'request_uri' => '',
    'referer' => '',
    'ip' => '',
    'timestamp' => time(),
  );
  // Some context values are only available when in a request context.
  if ($this->requestStack && $request = $this->requestStack->getCurrentRequest()) {
    $context['request_uri'] = $request->getUri();
    $context['referer'] = $request->headers->get('Referer', '');
    $context['ip'] = $request->getClientIP();
    try {
      if ($this->currentUser) {
        $context['user'] = $this->currentUser;
        $context['uid'] = $this->currentUser->id();
      }
    }
    catch (\Exception $e) {
      // An exception might be thrown if the database connection is not
      // available or due to another unexpected reason. It is more important
      // to log the error that we already have so any additional exceptions
      // are ignored.
    }
  }

  if (is_string($level)) {
    // Convert to integer equivalent for consistency with RFC 5424.
    $level = $this->levelTranslation[$level];
  }
  // Call all available loggers.
  foreach ($this->sortLoggers() as $logger) {
    $logger->log($level, $message, $context);
  }

  $this->callDepth--;
}