/**
* Looks up the DHTObject associated with <code>key</code> in the local database.
*
* @param key the KademliaOverlayKey of the data item to be looked up.
* @return the DHTObject associated with <code>key</code>. If no such object exists (or it has
* expired), <code>null</code> is returned.
*/
public final DHTObject get(final KademliaOverlayKey key) {
final KademliaIndexEntry indexEntry = index.get(key);
if (indexEntry == null) { // no entry known
return null;
} else if (indexEntry.hasExpired()) { // old entry expired
index.remove(key);
return null;
}
return indexEntry.getValue();
}
