public boolean incMissedCycleCountForSector(long sectorIndex) {
Boolean relevance = (Boolean) memcacheService.get(MC_KEY_SECTOR_RELEVANCE_PREFIX + sectorIndex);
boolean result = ((relevance == null) || !relevance);
if (result) {
memcacheService.increment(MC_KEY_SECTOR_MISSED_CYCLE_COUNT + sectorIndex, 1L, 0L);
}
return result;
}
/**
* Increments the value by a positive delta
*
* @param delta
* @return the value that the counter was changed to
*/
public long increment(long delta) {
Preconditions.checkArgument(delta > 0, "delta must be a positive value");
populateMemcache();
final Long result = memcache.increment(memcacheKey, delta);
if (random.nextDouble() <= chanceToWrite) {
String shardKey = prefix + random.nextInt(numShards);
persistence.mutate(
shardKey,
new Function<Long, Long>() {
@Override
public Long apply(Long oldValue) {
if (oldValue == null) {
return result;
}
return Math.max(oldValue, result);
}
});
}
return result;
}