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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 "mongo/client/dbclient_base.h"
#include "mongo/config.h"
#include "mongo/db/dbmessage.h"
#include "mongo/db/ops/write_ops.h"
#include "mongo/util/net/hostandport.h"
namespace mongo {
class OperationContext;
/**
* Embedded calls to the local server using the DBClientBase API without going over the network.
*
* Caller does not need to lock, that is handled within.
*
* All operations are performed within the scope of a passed-in OperationContext (except when
* using the deprecated constructor). You must ensure that the OperationContext is valid when
* calling into any function.
*/
class DBDirectClient : public DBClientBase {
public:
DBDirectClient(OperationContext* opCtx);
using DBClientBase::find;
using DBClientBase::insert;
using DBClientBase::remove;
using DBClientBase::update;
std::unique_ptr<DBClientCursor> find(FindCommandRequest findRequest,
const ReadPreferenceSetting& readPref,
ExhaustMode exhaustMode) override;
write_ops::FindAndModifyCommandReply findAndModify(
const write_ops::FindAndModifyCommandRequest& findAndModify);
/**
* insert, update, and remove only check the top level error status. The caller is responsible
* for checking the writeErrors element for errors during execution.
*/
write_ops::InsertCommandReply insert(const write_ops::InsertCommandRequest& insert);
write_ops::UpdateCommandReply update(const write_ops::UpdateCommandRequest& update);
write_ops::DeleteCommandReply remove(const write_ops::DeleteCommandRequest& remove);
bool isFailed() const override;
bool isStillConnected() override;
std::string toString() const override;
std::string getServerAddress() const override;
void say(Message& toSend, bool isRetry = false, std::string* actualServer = nullptr) override;
long long count(NamespaceStringOrUUID nsOrUuid,
const BSONObj& query = BSONObj(),
int options = 0,
int limit = 0,
int skip = 0,
boost::optional<BSONObj> readConcernObj = boost::none) override;
ConnectionString::ConnectionType type() const override;
double getSoTimeout() const override;
int getMinWireVersion() final;
int getMaxWireVersion() final;
bool isReplicaSetMember() const final;
bool isMongos() const final {
return false;
}
bool isTLS() final {
return false;
}
#ifdef MONGO_CONFIG_SSL
const SSLConfiguration* getSSLConfiguration() override {
invariant(false);
return nullptr;
}
#endif
protected:
void _auth(const BSONObj& params) override;
private:
void _call(Message& toSend, Message& response, std::string* actualServer) override;
OperationContext* _opCtx;
};
} // namespace mongo
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