private static String setToString(LongFloatMap map) {
LongPrimitiveIterator it = map.keySetIterator();
Collection<String> keyStrings = Lists.newArrayListWithCapacity(map.size());
while (it.hasNext()) {
keyStrings.add(Long.toString(it.nextLong()));
}
return DelimitedDataUtils.encode(',', keyStrings);
}
private static void removeNotUpdated(
LongPrimitiveIterator it, LongSet updated, LongSet recentlyActive, Lock writeLock) {
writeLock.lock();
try {
while (it.hasNext()) {
long id = it.nextLong();
if (!updated.contains(id) && !recentlyActive.contains(id)) {
it.remove();
}
}
} finally {
writeLock.unlock();
}
}