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/**
* Copyright (C) 2019-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 <string>
#include "mongo/db/jsobj.h"
namespace mongo {
class Status;
/**
* The 'CommitQuorumOptions' has the same range of settings as the 'w' field from
* 'WriteConcernOptions'. It can be set to an integer starting from 0 and up, or to a string. The
* string option can be 'majority', 'votingMembers' or a replica set tag.
*
* The principal idea behind 'CommitQuorumOptions' is to figure out when an index build should be
* committed on the replica set based on the number of commit ready members.
*/
class CommitQuorumOptions {
public:
static const StringData kCommitQuorumField; // = "commitQuorum"
static const char kMajority[]; // = "majority"
static const char kVotingMembers[]; // = "votingMembers"
static const int kUninitializedNumNodes = -1;
static const int kDisabled = 0;
static const BSONObj Majority; // = {"commitQuorum": "majority"}
static const BSONObj VotingMembers; // = {"commitQuorum": "votingMembers"}
CommitQuorumOptions() {
reset();
}
explicit CommitQuorumOptions(int numNodesOpts);
explicit CommitQuorumOptions(const std::string& modeOpts);
Status parse(const BSONElement& commitQuorumElement);
/**
* Returns an instance of CommitQuorumOptions from a BSONElement.
*
* uasserts() if the 'commitQuorumElement' cannot be deserialized.
*/
static CommitQuorumOptions deserializerForIDL(const BSONElement& commitQuorumElement);
void reset() {
numNodes = kUninitializedNumNodes;
mode = "";
}
bool isInitialized() const {
return !(mode.empty() && numNodes == kUninitializedNumNodes);
}
inline bool operator==(const CommitQuorumOptions& rhs) const {
return (numNodes == rhs.numNodes && mode == rhs.mode) ? true : false;
}
// Returns the BSON representation of this object.
BSONObj toBSON() const;
// Appends the BSON representation of this object.
void appendToBuilder(StringData fieldName, BSONObjBuilder* builder) const;
// The 'commitQuorum' parameter to define the required quorum for the index builds to commit.
// The 'mode' represents the string format and takes precedence over the number format
// 'numNodes'.
int numNodes = kUninitializedNumNodes;
std::string mode = "";
};
} // namespace mongo
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