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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/bson/bsonobjbuilder.h"
#include "mongo/db/catalog_raii.h"
#include "mongo/db/coll_mod_gen.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/op_observer.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/repl/oplog.h"
#include "mongo/db/storage/key_string.h"
namespace mongo {
/**
* This is a subset of the collMod command options related to index modifications.
*
* Refer to CollModRequest in coll_mod.cpp for non-index collMod options.
*/
struct ParsedCollModIndexRequest {
const IndexDescriptor* idx = nullptr;
boost::optional<long long> indexExpireAfterSeconds;
boost::optional<bool> indexHidden;
boost::optional<bool> indexUnique;
boost::optional<bool> indexPrepareUnique;
};
/**
* Performs the index modification described in "collModIndex" on the collection.
*
* Intended for use within a write conflict retry loop alongside other collMod operations.
*
* The appropriate collection locks should be acquired before calling this function.
*
* Used by collMod implementation only.
*/
void processCollModIndexRequest(OperationContext* opCtx,
AutoGetCollection* autoColl,
const ParsedCollModIndexRequest& collModIndexRequest,
boost::optional<IndexCollModInfo>* indexCollModInfo,
BSONObjBuilder* result,
boost::optional<repl::OplogApplication::Mode> mode);
/**
* Scans index to return the record ids of duplicates.
* Performs a scan on the whole index if 'firstKeyString' is not provided. Otherwise, only scans
* documents with 'firstKeyString'.
*/
std::list<std::set<RecordId>> scanIndexForDuplicates(
OperationContext* opCtx,
const CollectionPtr& collection,
const IndexDescriptor* idx,
boost::optional<KeyString::Value> firstKeyString = {});
/**
* Builds a BSONArray of the violations with duplicate index keys and returns the formatted error
* status for not being able to convert the index to unique.
*/
Status buildConvertUniqueErrorStatus(OperationContext* opCtx,
const CollectionPtr& collection,
const std::list<std::set<RecordId>>& duplicateRecordsList);
} // namespace mongo
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