StatusWith<boost::optional<BSONObj>> RouterStageSkip::next() {
while (_skippedSoFar < _skip) {
auto next = getChildStage()->next();
if (!next.isOK()) {
return next;
}
if (!next.getValue()) {
return next;
}
++_skippedSoFar;
}
return getChildStage()->next();
}
StatusWith<boost::optional<BSONObj>> RouterStageLimit::next() {
if (_returnedSoFar >= _limit) {
return {boost::none};
}
auto childResult = getChildStage()->next();
if (!childResult.isOK()) {
return childResult;
}
if (childResult.getValue()) {
++_returnedSoFar;
}
return childResult;
}
StatusWith<boost::optional<BSONObj>> RouterStageRemoveSortKey::next() {
auto childResult = getChildStage()->next();
if (!childResult.isOK() || !childResult.getValue()) {
return childResult;
}
BSONObjBuilder builder;
for (BSONElement elt : *childResult.getValue()) {
if (!str::equals(elt.fieldName(), ClusterClientCursorParams::kSortKeyField)) {
builder.append(elt);
}
}
return {builder.obj()};
}
StatusWith<ClusterQueryResult> RouterStageLimit::next(RouterExecStage::ExecContext execContext) {
if (_returnedSoFar >= _limit) {
return {ClusterQueryResult()};
}
auto childResult = getChildStage()->next(execContext);
if (!childResult.isOK()) {
return childResult;
}
if (!childResult.getValue().isEOF()) {
++_returnedSoFar;
}
return childResult;
}
void RouterStageSkip::kill() {
getChildStage()->kill();
}
Status RouterStageLimit::setAwaitDataTimeout(Milliseconds awaitDataTimeout) {
return getChildStage()->setAwaitDataTimeout(awaitDataTimeout);
}
bool RouterStageLimit::remotesExhausted() {
return getChildStage()->remotesExhausted();
}
void RouterStageLimit::kill() {
getChildStage()->kill();
}
bool RouterStageRemoveSortKey::remotesExhausted() {
return getChildStage()->remotesExhausted();
}
void RouterStageRemoveSortKey::kill() {
getChildStage()->kill();
}
