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/**
* Copyright (C) 2018-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.
*/
#pragma once
#include <memory>
#include <string>
#include "mongo/db/keys_collection_client.h"
#include "mongo/db/rs_local_client.h"
namespace mongo {
class OperationContext;
class LogicalTime;
class BSONObj;
class KeysCollectionClientDirect : public KeysCollectionClient {
public:
KeysCollectionClientDirect();
/**
* Returns keys for the given purpose and with an expiresAt value greater than newerThanThis,
* using readConcern level majority if possible.
*/
StatusWith<std::vector<KeysCollectionDocument>> getNewKeys(OperationContext* opCtx,
StringData purpose,
const LogicalTime& newerThanThis,
bool useMajority) override;
/**
* Directly inserts a key document to the storage
*/
Status insertNewKey(OperationContext* opCtx, const BSONObj& doc) override;
/**
* Returns false if getNewKeys uses readConcern level:local, so the documents returned can be
* rolled back.
*/
bool supportsMajorityReads() const final {
return false;
}
private:
StatusWith<Shard::QueryResponse> _query(OperationContext* opCtx,
const ReadPreferenceSetting& readPref,
const repl::ReadConcernLevel& readConcernLevel,
const NamespaceString& nss,
const BSONObj& query,
const BSONObj& sort,
boost::optional<long long> limit);
Status _insert(OperationContext* opCtx,
const NamespaceString& nss,
const BSONObj& doc,
const WriteConcernOptions& writeConcern);
RSLocalClient _rsLocalClient;
};
} // namespace mongo
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