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/**
* Copyright (C) 2020-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/repl/primary_only_service_op_observer.h"
#include "mongo/db/repl/primary_only_service.h"
namespace mongo {
namespace repl {
namespace {
const auto documentIdDecoration = OperationContext::declareDecoration<BSONObj>();
} // namespace
PrimaryOnlyServiceOpObserver::PrimaryOnlyServiceOpObserver(ServiceContext* serviceContext) {
_registry = PrimaryOnlyServiceRegistry::get(serviceContext);
}
PrimaryOnlyServiceOpObserver::~PrimaryOnlyServiceOpObserver() = default;
void PrimaryOnlyServiceOpObserver::aboutToDelete(OperationContext* opCtx,
const CollectionPtr& coll,
BSONObj const& doc) {
// Extract the _id field from the document. If it does not have an _id, use the
// document itself as the _id.
documentIdDecoration(opCtx) = doc["_id"] ? doc["_id"].wrap() : doc;
}
void PrimaryOnlyServiceOpObserver::onDelete(OperationContext* opCtx,
const CollectionPtr& coll,
StmtId stmtId,
const OplogDeleteEntryArgs& args,
OpStateAccumulator* opAccumulator) {
const auto& nss = coll->ns();
auto& documentId = documentIdDecoration(opCtx);
invariant(!documentId.isEmpty());
auto service = _registry->lookupServiceByNamespace(nss);
if (!service) {
return;
}
opCtx->recoveryUnit()->onCommit(
[service, documentId, nss](OperationContext*, boost::optional<Timestamp>) {
// Release the instance without interrupting it since for some primary-only services
// there is still work to be done after the state document is removed.
service->releaseInstance(documentId, Status::OK());
});
}
repl::OpTime PrimaryOnlyServiceOpObserver::onDropCollection(OperationContext* opCtx,
const NamespaceString& collectionName,
const UUID& uuid,
std::uint64_t numRecords,
const CollectionDropType dropType,
bool markFromMigrate) {
auto service = _registry->lookupServiceByNamespace(collectionName);
if (service) {
opCtx->recoveryUnit()->onCommit(
[service, collectionName](OperationContext*, boost::optional<Timestamp>) {
// Release and interrupt all the instances since the state document collection is
// not supposed to be dropped.
service->releaseAllInstances(
Status(ErrorCodes::Interrupted,
str::stream() << collectionName.toStringForErrorMsg() << " is dropped"));
});
}
return {};
}
} // namespace repl
} // namespace mongo
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