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/**
* Copyright (C) 2022-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/db/repl/change_stream_oplog_notification.h"
#include "mongo/db/catalog_raii.h"
#include "mongo/db/concurrency/exception_util.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/repl/oplog.h"
#include "mongo/db/repl/oplog_entry.h"
#include "mongo/db/shard_id.h"
namespace mongo {
namespace {
void insertOplogEntry(OperationContext* opCtx,
repl::MutableOplogEntry&& oplogEntry,
StringData opStr) {
writeConflictRetry(opCtx, opStr, NamespaceString::kRsOplogNamespace, [&] {
AutoGetOplog oplogWrite(opCtx, OplogAccessMode::kWrite);
WriteUnitOfWork wunit(opCtx);
const auto& oplogOpTime = repl::logOp(opCtx, &oplogEntry);
uassert(8423339,
str::stream() << "Failed to create new oplog entry for oplog with opTime: "
<< oplogEntry.getOpTime().toString() << ": "
<< redact(oplogEntry.toBSON()),
!oplogOpTime.isNull());
wunit.commit();
});
}
} // namespace
void notifyChangeStreamsOnShardCollection(OperationContext* opCtx,
const NamespaceString& nss,
const UUID& uuid,
BSONObj cmd,
CommitPhase commitPhase,
const boost::optional<std::set<ShardId>>& shardIds) {
BSONObjBuilder cmdBuilder;
std::string opName;
switch (commitPhase) {
case mongo::CommitPhase::kSuccessful:
opName = "shardCollection";
break;
case CommitPhase::kAborted:
opName = "shardCollectionAbort";
break;
case CommitPhase::kPrepare:
// in case of prepare, shardsIds is required
cmdBuilder.append("shards", *shardIds);
opName = "shardCollectionPrepare";
break;
default:
MONGO_UNREACHABLE;
}
cmdBuilder.append(opName, nss.ns());
cmdBuilder.appendElements(cmd);
BSONObj fullCmd = cmdBuilder.obj();
repl::MutableOplogEntry oplogEntry;
oplogEntry.setOpType(repl::OpTypeEnum::kNoop);
oplogEntry.setNss(nss);
oplogEntry.setUuid(uuid);
oplogEntry.setTid(nss.tenantId());
oplogEntry.setObject(BSON("msg" << BSON(opName << nss.ns())));
oplogEntry.setObject2(fullCmd);
oplogEntry.setOpTime(repl::OpTime());
oplogEntry.setWallClockTime(opCtx->getServiceContext()->getFastClockSource()->now());
insertOplogEntry(opCtx, std::move(oplogEntry), "ShardCollectionWritesOplog");
}
void notifyChangeStreamsOnDatabaseAdded(OperationContext* opCtx,
const DatabasesAdded& databasesAddedNotification) {
const auto& notifiedPhase = databasesAddedNotification.getPhase();
for (const auto& dbName : databasesAddedNotification.getNames()) {
repl::MutableOplogEntry oplogEntry;
oplogEntry.setOpType(repl::OpTypeEnum::kNoop);
oplogEntry.setNss(NamespaceString(dbName));
oplogEntry.setTid(dbName.tenantId());
oplogEntry.setObject(BSON("msg" << BSON("createDatabase" << dbName.db())));
BSONObjBuilder o2Builder;
o2Builder.append("createDatabase", dbName.db());
if (notifiedPhase) {
o2Builder.append("phase", *notifiedPhase);
if (*notifiedPhase == CommitPhaseEnum::kPrepare) {
o2Builder.append("primaryShard", *databasesAddedNotification.getPrimaryShard());
}
}
o2Builder.append("isImported", databasesAddedNotification.getAreImported());
oplogEntry.setObject2(o2Builder.obj());
oplogEntry.setOpTime(repl::OpTime());
oplogEntry.setWallClockTime(opCtx->getServiceContext()->getFastClockSource()->now());
insertOplogEntry(opCtx, std::move(oplogEntry), "DbAddedToConfigCatalogWritesOplog");
}
}
void notifyChangeStreamsOnMovePrimary(OperationContext* opCtx,
const DatabaseName& dbName,
const ShardId& oldPrimary,
const ShardId& newPrimary) {
repl::MutableOplogEntry oplogEntry;
oplogEntry.setOpType(repl::OpTypeEnum::kNoop);
oplogEntry.setNss(NamespaceString(dbName));
oplogEntry.setTid(dbName.tenantId());
oplogEntry.setObject(BSON("msg" << BSON("movePrimary" << dbName.db())));
oplogEntry.setObject2(
BSON("movePrimary" << dbName.db() << "from" << oldPrimary << "to" << newPrimary));
oplogEntry.setOpTime(repl::OpTime());
oplogEntry.setWallClockTime(opCtx->getServiceContext()->getFastClockSource()->now());
insertOplogEntry(opCtx, std::move(oplogEntry), "MovePrimaryWritesOplog");
}
} // namespace mongo
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