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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.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/catalog/commit_quorum_options.h"
#include "mongo/base/status.h"
#include "mongo/base/string_data.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/field_parser.h"
#include "mongo/db/repl/repl_set_config.h"
#include "mongo/util/str.h"
namespace mongo {
const StringData CommitQuorumOptions::kCommitQuorumField = "commitQuorum"_sd;
const char CommitQuorumOptions::kMajority[] = "majority";
const char CommitQuorumOptions::kVotingMembers[] = "votingMembers";
const BSONObj CommitQuorumOptions::Majority(BSON(kCommitQuorumField
<< CommitQuorumOptions::kMajority));
const BSONObj CommitQuorumOptions::VotingMembers(BSON(kCommitQuorumField
<< CommitQuorumOptions::kVotingMembers));
CommitQuorumOptions::CommitQuorumOptions(int numNodesOpts) {
reset();
numNodes = numNodesOpts;
invariant(numNodes >= 0 &&
numNodes <= static_cast<decltype(numNodes)>(repl::ReplSetConfig::kMaxMembers));
}
CommitQuorumOptions::CommitQuorumOptions(const std::string& modeOpts) {
reset();
mode = modeOpts;
invariant(!mode.empty());
}
Status CommitQuorumOptions::parse(const BSONElement& commitQuorumElement) {
reset();
if (commitQuorumElement.isNumber()) {
auto cNumNodes = commitQuorumElement.safeNumberLong();
if (cNumNodes < 0 ||
cNumNodes > static_cast<decltype(cNumNodes)>(repl::ReplSetConfig::kMaxMembers)) {
return Status(
ErrorCodes::FailedToParse,
str::stream()
<< "commitQuorum has to be a non-negative number and not greater than "
<< repl::ReplSetConfig::kMaxMembers);
}
numNodes = static_cast<decltype(numNodes)>(cNumNodes);
} else if (commitQuorumElement.type() == String) {
mode = commitQuorumElement.str();
if (mode.empty()) {
return Status(ErrorCodes::FailedToParse,
str::stream() << "commitQuorum can't be an empty string");
}
} else {
return Status(ErrorCodes::FailedToParse, "commitQuorum has to be a number or a string");
}
return Status::OK();
}
CommitQuorumOptions CommitQuorumOptions::deserializerForIDL(
const BSONElement& commitQuorumElement) {
CommitQuorumOptions commitQuorumOptions;
uassertStatusOK(commitQuorumOptions.parse(commitQuorumElement));
return commitQuorumOptions;
}
BSONObj CommitQuorumOptions::toBSON() const {
BSONObjBuilder builder;
appendToBuilder(kCommitQuorumField, &builder);
return builder.obj();
}
void CommitQuorumOptions::appendToBuilder(StringData fieldName, BSONObjBuilder* builder) const {
if (mode.empty()) {
builder->append(fieldName, numNodes);
} else {
builder->append(fieldName, mode);
}
}
} // namespace mongo
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