Posible Interceptor con repositorio

gistfile1.java

@Component
public class PaginationInterceptor implements HandlerInterceptor {
    @Autowired
    private PaginationService paginationService;

    @Autowired
    private ProductRepository productRepository;

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, 
                            Object handler, ModelAndView modelAndView) {
        // Read pagination parameters
        int currentIndex = Integer.parseInt(
            request.getHeader("X-Current-Index") != null 
                ? request.getHeader("X-Current-Index") 
                : "0"
        );
        
        int itemsPerPage = Integer.parseInt(
            request.getHeader("X-Items-Per-Page") != null 
                ? request.getHeader("X-Items-Per-Page") 
                : String.valueOf(paginationService.getDefaultItemsPerPage())
        );

        // Ensure items per page doesn't exceed maximum
        itemsPerPage = Math.min(itemsPerPage, paginationService.getMaxItemsPerPage());

        // Get total items from repository
        int totalItems = productRepository.getTotalProducts();

        // Calculate total pages
        int totalPages = paginationService.calculateTotalPages(totalItems, itemsPerPage);
        int currentPage = (currentIndex / itemsPerPage) + 1;

        // Inject headers
        response.addHeader("X-Current-Index", String.valueOf(currentIndex));
        response.addHeader("X-Items-Per-Page", String.valueOf(itemsPerPage));
        response.addHeader("X-Current-Page", String.valueOf(currentPage));
        response.addHeader("X-Total-Items", String.valueOf(totalItems));
        response.addHeader("X-Total-Pages", String.valueOf(totalPages));
    }
}