Method parse

/**
 * Function to convert a route to an internal URI
 *
 * @param   Uri   &$uri     The uri.
 * @param   bool  $setVars  Set the parsed data in the internal
 *                          storage for current-request-URLs
 *
 * @return  array
 *
 * @since   1.5
 * @throws  \Exception
 */
public function parse(&$uri, $setVars = false)
{
    // Do the preprocess stage of the URL parse process
    $this->processParseRules($uri, self::PROCESS_BEFORE);
    // Do the main stage of the URL parse process
    $this->processParseRules($uri);
    // Do the postprocess stage of the URL parse process
    $this->processParseRules($uri, self::PROCESS_AFTER);
    // Check if all parts of the URL have been parsed.
    // Otherwise we have an invalid URL
    if (\strlen($uri->getPath()) > 0) {
        throw new RouteNotFoundException(Text::_('JERROR_PAGE_NOT_FOUND'));
    }
    if ($setVars) {
        $this->setVars($uri->getQuery(true));
        return $this->getVars();
    }
    return $uri->getQuery(true);
}