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/**
* Copyright (C) 2022-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.
*/
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kQuery
#include "mongo/platform/basic.h"
#include "mongo/db/change_stream_change_collection_manager.h"
#include "mongo/db/catalog/clustered_collection_util.h"
#include "mongo/db/catalog/coll_mod.h"
#include "mongo/db/catalog/create_collection.h"
#include "mongo/db/catalog/drop_collection.h"
#include "mongo/db/namespace_string.h"
#include "mongo/logv2/log.h"
namespace mongo {
namespace {
const auto getChangeCollectionManager =
ServiceContext::declareDecoration<boost::optional<ChangeStreamChangeCollectionManager>>();
} // namespace
ChangeStreamChangeCollectionManager& ChangeStreamChangeCollectionManager::get(
ServiceContext* service) {
return *getChangeCollectionManager(service);
}
ChangeStreamChangeCollectionManager& ChangeStreamChangeCollectionManager::get(
OperationContext* opCtx) {
return *getChangeCollectionManager(opCtx->getServiceContext());
}
void ChangeStreamChangeCollectionManager::create(ServiceContext* service) {
getChangeCollectionManager(service).emplace(service);
}
Status ChangeStreamChangeCollectionManager::createChangeCollection(
OperationContext* opCtx, boost::optional<TenantId> tenantId) {
// TODO: SERVER-65950 create or update the change collection for a particular tenant.
const NamespaceString nss{NamespaceString::kConfigDb,
NamespaceString::kChangeStreamChangeCollection};
// Make the change collection clustered by '_id'. The '_id' field will have the same value as
// the 'ts' field of the oplog.
CollectionOptions changeCollectionOptions;
changeCollectionOptions.clusteredIndex.emplace(clustered_util::makeDefaultClusteredIdIndex());
changeCollectionOptions.capped = true;
auto status = createCollection(opCtx, nss, changeCollectionOptions, BSONObj());
if (status.code() == ErrorCodes::NamespaceExists) {
return Status(ErrorCodes::Error::OK, "");
}
return status;
}
Status ChangeStreamChangeCollectionManager::dropChangeCollection(
OperationContext* opCtx, boost::optional<TenantId> tenantId) {
// TODO: SERVER-65950 remove the change collection for a particular tenant.
const NamespaceString nss{NamespaceString::kConfigDb,
NamespaceString::kChangeStreamChangeCollection};
DropReply dropReply;
return dropCollection(
opCtx, nss, &dropReply, DropCollectionSystemCollectionMode::kAllowSystemCollectionDrops);
}
Status ChangeStreamChangeCollectionManager::insertDocumentsToChangeCollection(
OperationContext* opCtx,
boost::optional<TenantId> tenantId,
std::vector<Record>* records,
const std::vector<Timestamp>& timestamps) {
// TODO SERVER-65210 add code to insert to the change collection in the primaries.
return Status(ErrorCodes::OK, "");
}
} // namespace mongo
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