private void onDownloadSuccess(Request request, Page page) {
        if (site.getAcceptStatCode().contains(page.getStatusCode())){
            pageProcessor.process(page);
            extractAndAddRequests(page, spawnUrl);
            if (!page.getResultItems().isSkip()) {
                for (Pipeline pipeline : pipelines) {
                    pipeline.process(page.getResultItems(), this);
                }
            }
        } else {
            logger.info("page status code error, page {} , code: {}", request.getUrl(), page.getStatusCode());
        }
        sleep(site.getSleepTime());
    }
Process specific urls without url discovering.

@param urls urls to process
webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java