if (rawQueueStats.getMessagesStats().getTotal() == 0) {
return rawQueueStats;
}
else {
// change the hrefs to ids
Aged oldestWithHref = rawQueueStats.getMessagesStats().getOldest().get();
Aged oldestWithId = oldestWithHref.toBuilder()
.id(TO_ID_FROM_HREF.apply(oldestWithHref.getId()))
.build();
Aged newestWithHref = rawQueueStats.getMessagesStats().getNewest().get();
Aged newestWithId = newestWithHref.toBuilder()
.id(TO_ID_FROM_HREF.apply(newestWithHref.getId()))
.build();
MessagesStats messagesStatsWithIds = rawQueueStats.getMessagesStats().toBuilder()
.oldest(oldestWithId)