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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/s/chunk_version.h"
#include "mongo/s/chunk_version_gen.h"
#include "mongo/util/str.h"
namespace mongo {
constexpr StringData ChunkVersion::kChunkVersionField;
bool CollectionGeneration::isSameCollection(const CollectionGeneration& other) const {
if (_timestamp == other._timestamp) {
tassert(664720,
str::stream() << "Collections have matching timestamps " << _timestamp
<< ", but different epochs " << _epoch << " vs " << other._epoch,
_epoch == other._epoch);
return true;
}
tassert(664721,
str::stream() << "Collections have different timestamps " << _timestamp << " vs "
<< other._timestamp << ", but matching epochs " << _epoch,
_epoch != other._epoch);
return false;
}
std::string CollectionGeneration::toString() const {
return str::stream() << _epoch << "|" << _timestamp;
}
ChunkVersion ChunkVersion::parse(const BSONElement& element) {
auto parsedVersion =
ChunkVersion60Format::parse(IDLParserContext("ChunkVersion"), element.Obj());
auto version = parsedVersion.getVersion();
return ChunkVersion({parsedVersion.getEpoch(), parsedVersion.getTimestamp()},
{version.getSecs(), version.getInc()});
}
void ChunkVersion::serialize(StringData field, BSONObjBuilder* builder) const {
ChunkVersion60Format version;
version.setGeneration({_epoch, _timestamp});
version.setPlacement(Timestamp(majorVersion(), minorVersion()));
builder->append(field, version.toBSON());
}
std::string ChunkVersion::toString() const {
return str::stream() << majorVersion() << "|" << minorVersion() << "||" << _epoch << "||"
<< _timestamp.toString();
}
} // namespace mongo
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