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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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include "mongo/db/commands.h"
#include "mongo/rpc/get_status_from_command_result.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/grid.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
class DataSizeCmd : public BasicCommand {
public:
DataSizeCmd() : BasicCommand("dataSize", "datasize") {}
std::string parseNs(const std::string& dbname, const BSONObj& cmdObj) const override {
return CommandHelpers::parseNsFullyQualified(cmdObj);
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
bool adminOnly() const override {
return false;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) const override {
ActionSet actions;
actions.addAction(ActionType::find);
out->push_back(Privilege(parseResourcePattern(dbname, cmdObj), actions));
}
bool run(OperationContext* opCtx,
const std::string& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
const NamespaceString nss(parseNs(dbName, cmdObj));
auto routingInfo =
uassertStatusOK(Grid::get(opCtx)->catalogCache()->getCollectionRoutingInfo(opCtx, nss));
auto shardResults = scatterGatherVersionedTargetByRoutingTable(
opCtx,
nss.db(),
nss,
routingInfo,
CommandHelpers::filterCommandRequestForPassthrough(cmdObj),
ReadPreferenceSetting::get(opCtx),
Shard::RetryPolicy::kIdempotent,
{},
{});
// yes these are doubles...
double size = 0;
double numObjects = 0;
int 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));
size += res["size"].number();
numObjects += res["numObjects"].number();
millis += res["millis"].numberInt();
}
result.append("size", size);
result.append("numObjects", numObjects);
result.append("millis", millis);
return true;
}
} dataSizeCmd;
} // namespace
} // namespace mongo
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