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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/db/op_observer_util.h"
#include "mongo/db/index/index_descriptor.h"
namespace mongo {
/**
* Given a raw collMod command object and associated collection metadata, create and return the
* object for the 'o' field of a collMod oplog entry. For TTL index updates, we make sure the oplog
* entry always stores the index name, instead of a key pattern.
*/
BSONObj makeCollModCmdObj(const BSONObj& collModCmd,
const CollectionOptions& oldCollOptions,
boost::optional<TTLCollModInfo> ttlInfo) {
BSONObjBuilder cmdObjBuilder;
std::string ttlIndexFieldName = "index";
// Add all fields from the original collMod command.
for (auto elem : collModCmd) {
// We normalize all TTL collMod oplog entry objects to use the index name, even if the
// command used an index key pattern.
if (elem.fieldNameStringData() == ttlIndexFieldName && ttlInfo) {
BSONObjBuilder ttlIndexObjBuilder;
ttlIndexObjBuilder.append("name", ttlInfo->indexName);
ttlIndexObjBuilder.append("expireAfterSeconds",
durationCount<Seconds>(ttlInfo->expireAfterSeconds));
cmdObjBuilder.append(ttlIndexFieldName, ttlIndexObjBuilder.obj());
} else {
cmdObjBuilder.append(elem);
}
}
return cmdObjBuilder.obj();
}
BSONObj makeCreateCollCmdObj(const NamespaceString& collectionName,
const CollectionOptions& options,
const BSONObj& idIndex) {
BSONObjBuilder b;
b.append("create", collectionName.coll().toString());
{
// Don't store the UUID as part of the options, but instead only at the top level
CollectionOptions optionsToStore = options;
optionsToStore.uuid.reset();
b.appendElements(optionsToStore.toBSON());
}
// Include the full _id index spec in the oplog for index versions >= 2.
if (!idIndex.isEmpty()) {
auto versionElem = idIndex[IndexDescriptor::kIndexVersionFieldName];
invariant(versionElem.isNumber());
if (IndexDescriptor::IndexVersion::kV2 <=
static_cast<IndexDescriptor::IndexVersion>(versionElem.numberInt())) {
b.append("idIndex", idIndex);
}
}
return b.obj();
}
} // namespace mongo
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