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/**
* Copyright (C) 2020-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 <utility>
#include <vector>
#include "mongo/base/status.h"
#include "mongo/db/repl/repl_set_tag.h"
#include "mongo/util/string_map.h"
namespace mongo {
namespace repl {
class ReplSetWriteConcernModeDefinitions {
public:
// Default constructor for use as an IDL default.
ReplSetWriteConcernModeDefinitions() {}
/**
* A constraint maps a tag (defined in the "members" section of the ReplSetConfig) to an integer
* specifying the number of nodes matching that tag which need to accept the write before the
* constraint is satisfied.
*/
typedef std::pair<std::string, std::int32_t> Constraint;
/**
* A write concern mode is defined by a list of constraints.
*/
typedef std::vector<Constraint> Definition;
/**
* This maps a write concern mode name to the list of constraints which defines it.
*/
typedef StringMap<Definition> Definitions;
void serializeToBSON(StringData fieldName, BSONObjBuilder* bob) const;
static ReplSetWriteConcernModeDefinitions parseFromBSON(BSONElement patternMapElement);
/**
* Returns a StringMap of ReplSetTagPatterns, created from these definitions using the passed-in
* tagConfig. Will fail if the constraints don't correspond to existing tags in the tagConfig.
*/
StatusWith<StringMap<ReplSetTagPattern>> convertToTagPatternMap(
ReplSetTagConfig* tagConfig) const;
private:
ReplSetWriteConcernModeDefinitions(Definitions&& definitions)
: _definitions(std::move(definitions)) {}
Definitions _definitions;
};
} // namespace repl
} // namespace mongo
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