Method createRouter

/**
 * Returns the router.
 *
 * @param   CMSApplicationInterface  $application  The application object
 * @param   AbstractMenu             $menu         The menu object to work with
 *
 * @return  RouterInterface
 *
 * @since  4.0.0
 */
public function createRouter(CMSApplicationInterface $application, AbstractMenu $menu) : RouterInterface
{
    $compname = ucfirst($this->component);
    $class = $compname . 'Router';
    if (!class_exists($class)) {
        // Use the component routing handler if it exists
        $path = JPATH_SITE . '/components/com_' . $this->component . '/router.php';
        // Use the custom routing handler if it exists
        if (is_file($path)) {
            require_once $path;
        }
    }
    if (class_exists($class)) {
        $reflection = new \ReflectionClass($class);
        if (\in_array('Joomla\\CMS\\Component\\Router\\RouterInterface', $reflection->getInterfaceNames())) {
            return new $class($application, $menu);
        }
    }
    return new RouterLegacy($compname);
}