protected function loadConfigFile(string $fileKey, string $filePath)
    {
        $fileExtension = pathinfo($filePath, PATHINFO_EXTENSION);

        if ($fileExtension === 'json') {
            $this->loadJsonConfigFile($fileKey, $filePath);
            return;
        }

        if ($fileExtension === 'php') {
            $this->loadPhpConfigFile($fileKey, $filePath);
            return;
        }

        //@TODO : YAML
    }