private function _log($level, $levelName, $message, $params)
{
$logger = $this->getLogger();
$this->log(function ($message) use($logger, $level) {
if ($logger) {
openlog($logger['ident'], $logger['option'], $logger['facility']);
}
syslog($level, $message);
}, $level, $levelName, $message, $params);
}