@Override
public void finish() {
if (finished.compareAndSet(false, true)) {
consumeRemaining();
downstream.finish();
}
}
private void consumeRemaining() {
if (prevRowMergingIterator == null) {
return;
}
while (prevRowMergingIterator.hasNext()) {
boolean wantMore = downstream.setNextRow(prevRowMergingIterator.next());
if (!wantMore) {
break;
}
}
}
@Override
public void fail(Throwable e) {
if (!finished.getAndSet(true)) {
downstream.fail(e);
}
}