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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/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/dbcommands_gen.h"
#include "mongo/rpc/get_status_from_command_result.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/grid.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
namespace mongo {
namespace {
class DataSizeCmd : public TypedCommand<DataSizeCmd> {
public:
using Request = DataSizeCommand;
using Reply = typename Request::Reply;
DataSizeCmd() : TypedCommand(Request::kCommandName, Request::kCommandAlias) {}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
NamespaceString ns() const final {
return request().getCommandParameter();
}
bool supportsWriteConcern() const final {
return false;
}
void doCheckAuthorization(OperationContext* opCtx) const final {
auto* as = AuthorizationSession::get(opCtx->getClient());
uassert(ErrorCodes::Unauthorized,
"unauthorized",
as->isAuthorizedForActionsOnResource(ResourcePattern::forExactNamespace(ns()),
ActionType::find));
}
Reply typedRun(OperationContext* opCtx) {
const auto& cmd = request();
const auto& nss = ns();
auto cri = uassertStatusOK(
Grid::get(opCtx)->catalogCache()->getCollectionRoutingInfo(opCtx, nss));
auto shardResults = scatterGatherVersionedTargetByRoutingTable(
opCtx,
nss.db(),
nss,
cri,
applyReadWriteConcern(
opCtx,
this,
CommandHelpers::filterCommandRequestForPassthrough(cmd.toBSON({}))),
ReadPreferenceSetting::get(opCtx),
Shard::RetryPolicy::kIdempotent,
{} /*query*/,
{} /*collation*/,
boost::none /*letParameters*/,
boost::none /*runtimeConstants*/);
std::int64_t size = 0;
std::int64_t numObjects = 0;
std::int64_t millis = 0;
for (const auto& shardResult : shardResults) {
const auto shardResponse = uassertStatusOK(std::move(shardResult.swResponse));
uassertStatusOK(shardResponse.status);
const auto& res = shardResponse.data;
uassertStatusOK(getStatusFromCommandResult(res));
auto parsedResponse = Reply::parse(IDLParserContext{"dataSize"}, res);
size += parsedResponse.getSize();
numObjects += parsedResponse.getNumObjects();
millis += parsedResponse.getMillis();
}
Reply reply;
reply.setSize(size);
reply.setNumObjects(numObjects);
reply.setMillis(millis);
return reply;
}
};
AllowedOnSecondary secondaryAllowed(ServiceContext*) const final {
return AllowedOnSecondary::kAlways;
}
bool adminOnly() const final {
return false;
}
} dataSizeCmd;
} // namespace
} // namespace mongo
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