CrawlDatum crawldatum = new CrawlDatum();
String url = item.datum.getUrl();
crawldatum.setUrl(url);
Request request = requestFactory.createRequest(url);
Response response = null;
for (int i = 0; i <= retry; i++) {
if (i > 0) {
LogUtils.getLogger().info("retry " + i + "th " + url);
}
try {
response = request.getResponse(crawldatum);
break;
} catch (Exception ex) {
}
}