@Override
        public Get makeGet(final Map.Entry<TableName, QuotaState> entry) {
          return QuotaUtil.makeGetForTableQuotas(entry.getKey());
        }
Returns the QuotaState requested. If the quota info is not in cache an empty one will be
returned and the quota request will be enqueued for the next cache refresh.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaCache.java