Log.php

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<?php

class sspmod_core_Stats_Output_Log extends SimpleSAML_Stats_Output {

        private $logger;


        public function __construct(SimpleSAML_Configuration $config) {

                $logLevel = $config->getString('level', 'notice');
                $this->logger = array('SimpleSAML\Logger', $logLevel);
                if (!is_callable($this->logger)) {
                        throw new Exception('Invalid log level: ' . var_export($logLevel, TRUE));
                }
        }


        public function emit(array $data) {
                $str_data = json_encode($data);
                call_user_func($this->logger, 'EVENT ' . $str_data);
        }

}