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/**
* Copyright (C) 2019-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/auth/authorization_session.h"
#include "mongo/db/catalog/document_validation.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/map_reduce_agg.h"
#include "mongo/db/commands/map_reduce_command_base.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/query/find_common.h"
#include "mongo/db/query/query_knobs_gen.h"
namespace mongo {
namespace {
/**
* This class represents a map/reduce command executed on a single server.
*/
class MapReduceCommand : public MapReduceCommandBase {
public:
MapReduceCommand() = default;
AllowedOnSecondary secondaryAllowed(ServiceContext* serviceContext) const override {
if (repl::ReplicationCoordinator::get(serviceContext)->getReplicationMode() !=
repl::ReplicationCoordinator::modeReplSet) {
return AllowedOnSecondary::kAlways;
}
return AllowedOnSecondary::kOptIn;
}
std::size_t reserveBytesForReply() const override {
return FindCommon::kInitReplyBufferSize;
}
void _explainImpl(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmd,
BSONObjBuilder& result,
boost::optional<ExplainOptions::Verbosity> verbosity) const override {
map_reduce_agg::runAggregationMapReduce(opCtx, dbName, cmd, result, verbosity);
}
bool run(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
return map_reduce_agg::runAggregationMapReduce(opCtx, dbName, cmdObj, result, boost::none);
}
} mapReduceCommand;
} // namespace
} // namespace mongo
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