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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/rpc/op_msg.h"
#include "mongo/rpc/protocol.h"
#include <memory>
/**
* Utilities to construct the correct concrete rpc class based on what the remote server
* supports, and what the client has been configured to do.
*/
namespace mongo {
class Message;
namespace rpc {
class ReplyBuilderInterface;
class ReplyInterface;
/**
* Returns the appropriate concrete RequestBuilder. Throws if one cannot be chosen.
*/
std::unique_ptr<ReplyInterface> makeReply(const Message* unownedMessage);
/**
* Serializes an OpMsgRequest for a server that speaks the requested protocol.
*/
Message messageFromOpMsgRequest(Protocol proto, const OpMsgRequest&);
inline Message messageFromOpMsgRequest(ProtocolSet clientProtos,
ProtocolSet serverProtos,
const OpMsgRequest& request) {
return messageFromOpMsgRequest(uassertStatusOK(negotiate(clientProtos, serverProtos)), request);
}
/**
* Parses the message (from any protocol) into an OpMsgRequest.
*/
OpMsgRequest opMsgRequestFromAnyProtocol(const Message& unownedMessage);
/**
* Returns the appropriate concrete ReplyBuilder.
*/
std::unique_ptr<ReplyBuilderInterface> makeReplyBuilder(Protocol protocol);
} // namespace rpc
} // namespace mongo
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