public V getResult(I item) throws InterruptedException, ExecutionException {
Future<V> future = results.get(item.getKey());
if (future == null) {
return null;
} else {
return future.get();
}
}
public void add(I item) {
if (allItems.putIfAbsent(item.getKey(), item) == null) {
submitLock.lock();
try {
pending.add(item);
} finally {
submitLock.unlock();
}
}
}
@Override
protected void done() {
super.done();
results.put(item.getKey(), this);
submitLock.lock();
try {
outstanding.remove(item);
if (submitWork() == 0 && outstanding.isEmpty()) {
submitCondition.signal();
}
} finally {
submitLock.unlock();
}
}
