protected function getContext()
    {
        $trace = debug_backtrace();

        $file = isset($trace[2]['file'])
            ? $trace[2]['file']
            : ''
        ;

        $line = isset($trace[2]['line'])
            ? $trace[2]['line']
            : ''
        ;

        return [
            'file' => $file,
            'line' => $line,
        ];
    }