Method register

/**
 * Registers the service provider with a DI container.
 *
 * @param   Container  $container  The DI container.
 *
 * @return  void
 *
 * @since   4.0.0
 */
public function register(Container $container)
{
    $container->set(RouterFactoryInterface::class, function (Container $container) {
        $categoryFactory = null;
        if ($container->has(CategoryFactoryInterface::class)) {
            $categoryFactory = $container->get(CategoryFactoryInterface::class);
        }
        return new \Joomla\CMS\Component\Router\RouterFactory($this->namespace, $categoryFactory, $container->get(DatabaseInterface::class));
    });
}