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/**
* Copyright (C) 2021-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/query/all_indices_required_checker.h"
namespace mongo {
AllIndicesRequiredChecker::AllIndicesRequiredChecker(
const MultipleCollectionAccessor& collections) {
saveIndicesForCollection(collections.getMainCollection());
for (auto& [_, collection] : collections.getSecondaryCollections()) {
saveIndicesForCollection(collection);
}
}
void AllIndicesRequiredChecker::saveIndicesForCollection(const CollectionPtr& collection) {
if (collection) {
auto allEntriesShared = collection->getIndexCatalog()->getAllReadyEntriesShared();
auto& indexMap = _identEntries[collection->uuid()];
for (auto&& index : allEntriesShared) {
indexMap[index->descriptor()->indexName()] = index->getIdent();
}
}
}
void AllIndicesRequiredChecker::checkIndicesForCollection(OperationContext* opCtx,
const CollectionPtr& collection) const {
invariant(collection);
auto it = _identEntries.find(collection->uuid());
invariant(it != _identEntries.end());
for (const auto& [name, ident] : it->second) {
// Structured bindings cannot be captured by closures (the uassert below).
auto& nameRef = name;
auto indexDesc = collection->getIndexCatalog()->findIndexByIdent(opCtx, ident);
uassert(ErrorCodes::QueryPlanKilled,
str::stream() << "query plan killed :: index '" << nameRef << "' for collection '"
<< collection->ns().toStringForErrorMsg() << "' dropped",
indexDesc && !indexDesc->getEntry()->isDropped());
}
}
void AllIndicesRequiredChecker::check(OperationContext* opCtx,
const MultipleCollectionAccessor& collections) const {
checkIndicesForCollection(opCtx, collections.getMainCollection());
for (auto& [_, collection] : collections.getSecondaryCollections()) {
if (collection) {
checkIndicesForCollection(opCtx, collection);
}
}
}
} // namespace mongo
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