public Object poll(QueueInfo queue, long timeout) throws IOException, InterruptedException {
readOnly = false;
if (added != null) {
List queueAdded = (List) added.get(queue);
if (queueAdded != null) {
return queueAdded.remove(queueAdded.size() - 1);
}
}
Object o = queue.poll(Long.MAX_VALUE);
if (o != null) {
if (removed == null) {
removed = new HashMap();
}
List queueRemoved = (List) removed.get(queue);
if (queueRemoved == null) {
queueRemoved = new ArrayList();
removed.put(queue, queueRemoved);
}
queueRemoved.add(o);
o = doLoad(queue, o);
}
return o;
}
