protected boolean hasExpiredStripes(StripeInformationProvider si) {
    // Find if exists a stripe where all files have expired, if any.
    ArrayList<ImmutableList<HStoreFile>> stripes = si.getStripes();
    for (ImmutableList<HStoreFile> stripe : stripes) {
      if (allFilesExpired(stripe)) {
        return true;
      }
    }
    return false;
  }
Selects the compaction of a single stripe using default policy.
@param sfs          Files.
@param allFilesOnly Whether a compaction of all-or-none files is needed.
@return The resulting selection.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/StripeCompactionPolicy.java