private Map makeRow(CrawlerStatus status, String mimeType, String key) {
   Map row = new HashMap();
   row.put(MIME_TYPE_NAME, mimeType);
   row.put(
       MIME_TYPE_NUM_URLS,
       makeRefIfColl(status.getMimeTypeCtr(mimeType), key, MIMETYPES_URLS_KEY + ":" + mimeType));
   return row;
 }