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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/base/shim.h"
#include "mongo/db/commands/test_commands_enabled.h"
#include "mongo/db/pipeline/process_interface/replica_set_node_process_interface.h"
#include "mongo/db/pipeline/process_interface/shardsvr_process_interface.h"
#include "mongo/db/pipeline/process_interface/standalone_process_interface.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/executor/task_executor_pool.h"
#include "mongo/s/grid.h"
namespace mongo {
namespace {
std::shared_ptr<MongoProcessInterface> MongoProcessInterfaceCreateImpl(OperationContext* opCtx) {
// In the case where the client has connected directly to a shard rather than via mongoS, we
// should behave exactly as we do when running on a standalone or single-replset deployment.
const auto isInternalClient = !opCtx->getClient()->session() ||
(opCtx->getClient()->session()->getTags() & transport::Session::kInternalClient);
if (ShardingState::get(opCtx)->enabled() && isInternalClient) {
return std::make_shared<ShardServerProcessInterface>(
Grid::get(opCtx)->getExecutorPool()->getArbitraryExecutor());
} else if (auto executor = ReplicaSetNodeProcessInterface::getReplicaSetNodeExecutor(opCtx)) {
return std::make_shared<ReplicaSetNodeProcessInterface>(std::move(executor));
}
return std::make_shared<StandaloneProcessInterface>(nullptr);
}
auto mongoProcessInterfaceCreateRegistration = MONGO_WEAK_FUNCTION_REGISTRATION(
MongoProcessInterface::create, MongoProcessInterfaceCreateImpl);
} // namespace
} // namespace mongo
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