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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.
*/
#include "mongo/platform/basic.h"
#include "mongo/rpc/metadata/config_server_metadata.h"
#include "mongo/bson/util/bson_check.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/repl/bson_extract_optime.h"
#include "mongo/rpc/metadata.h"
namespace mongo {
namespace rpc {
using repl::OpTime;
namespace {
const char kOpTimeFieldName[] = "opTime";
} // unnamed namespace
const OperationContext::Decoration<ConfigServerMetadata> ConfigServerMetadata::get =
OperationContext::declareDecoration<ConfigServerMetadata>();
ConfigServerMetadata::ConfigServerMetadata(OpTime opTime) : _opTime(std::move(opTime)) {}
StatusWith<ConfigServerMetadata> ConfigServerMetadata::readFromMetadata(
const BSONObj& metadataObj) {
return readFromMetadata(metadataObj.getField(fieldName()));
}
StatusWith<ConfigServerMetadata> ConfigServerMetadata::readFromMetadata(
const BSONElement& metadataElem) {
if (metadataElem.eoo()) {
return ConfigServerMetadata{};
} else if (metadataElem.type() != mongo::Object) {
return {ErrorCodes::TypeMismatch,
str::stream() << "ConfigServerMetadata element has incorrect type: expected"
<< mongo::Object
<< " but got "
<< metadataElem.type()};
}
BSONObj configMetadataObj = metadataElem.Obj();
repl::OpTime opTime;
auto status = bsonExtractOpTimeField(configMetadataObj, kOpTimeFieldName, &opTime);
if (!status.isOK()) {
return status;
}
return ConfigServerMetadata(std::move(opTime));
}
void ConfigServerMetadata::writeToMetadata(BSONObjBuilder* builder) const {
invariant(_opTime);
BSONObjBuilder configMetadataBuilder(builder->subobjStart(fieldName()));
_opTime->append(&configMetadataBuilder, kOpTimeFieldName);
}
} // namespace rpc
} // namespace mongo
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