protected byte[] returnPossiblePrevValue(Transport transport) {
if (hasForceReturn(flags)) {
byte[] bytes = transport.readArray();
if (log.isTraceEnabled())
log.tracef("Previous value bytes is: %s", Util.printArray(bytes, false));
// 0-length response means null
return bytes.length == 0 ? null : bytes;
} else {
return null;
}
}
@Override
public SocketAddress getServer(Object key) {
int keyHashCode = getNormalizedHash(key);
if (keyHashCode == Integer.MIN_VALUE) keyHashCode += 1;
int hash = Math.abs(keyHashCode);
SortedMap<Integer, SocketAddress> candidates = positions.tailMap(hash % hashSpace);
if (log.isTraceEnabled()) {
log.tracef("Found possible candidates: %s", candidates);
}
return (candidates.size() > 0 ? candidates : positions)
.entrySet()
.iterator()
.next()
.getValue();
}
