/**
* @param e Entry.
* @return Continuous query entry.
*/
private CacheContinuousQueryEntry skipEntry(CacheContinuousQueryEntry e) {
if (lastFiredCntr.get() > e.updateCounter() || e.updateCounter() == 1) {
e.markFiltered();
return e;
} else {
buf.add(e.updateCounter());
// Double check. If another thread sent a event with counter higher than this event.
if (lastFiredCntr.get() > e.updateCounter() && buf.contains(e.updateCounter())) {
buf.remove(e.updateCounter());
e.markFiltered();
return e;
} else return null;
}
}
/**
* Add continuous entry.
*
* @param e Cache continuous query entry.
* @return Collection entries which will be fired.
*/
public CacheContinuousQueryEntry handle(CacheContinuousQueryEntry e) {
assert e != null;
if (e.isFiltered()) {
Long last = buf.lastx();
Long first = buf.firstx();
if (last != null && first != null && last - first >= MAX_BUFF_SIZE) {
NavigableSet<Long> prevHoles = buf.subSet(first, true, last, true);
GridLongList filteredEvts = new GridLongList((int) (last - first));
int size = 0;
Long cntr;
while ((cntr = prevHoles.pollFirst()) != null) {
filteredEvts.add(cntr);
++size;
}
filteredEvts.truncate(size, true);
e.filteredEvents(filteredEvts);
return e;
}
if (lastFiredCntr.get() > e.updateCounter() || e.updateCounter() == 1) return e;
else {
buf.add(e.updateCounter());
// Double check. If another thread sent a event with counter higher than this event.
if (lastFiredCntr.get() > e.updateCounter() && buf.contains(e.updateCounter())) {
buf.remove(e.updateCounter());
return e;
} else return null;
}
} else {
long prevVal = updateFiredCounter(e.updateCounter());
if (prevVal == -1) return e;
else {
NavigableSet<Long> prevHoles = buf.subSet(prevVal, true, e.updateCounter(), true);
GridLongList filteredEvts = new GridLongList((int) (e.updateCounter() - prevVal));
int size = 0;
Long cntr;
while ((cntr = prevHoles.pollFirst()) != null) {
filteredEvts.add(cntr);
++size;
}
filteredEvts.truncate(size, true);
e.filteredEvents(filteredEvts);
return e;
}
}
}