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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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.
*/
#pragma once
#include <string>
#include "mongo/base/status.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/ftdc/controller.h"
#include "mongo/db/ftdc/controller.h"
namespace mongo {
class FTDCController;
/**
* Base class for system metrics collectors. Sets collector name to a common name all system metrics
* collectors to use.
*/
class SystemMetricsCollector : public FTDCCollectorInterface {
public:
std::string name() const final;
protected:
/**
* Convert any errors we see into BSON for the user to see in the final FTDC document. It is
* acceptable for the collector to fail, but we do not want to shutdown the FTDC loop because
* of it. We assume that the BSONBuilder is not corrupt on non-OK Status but nothing else with
* regards to the final document output.
*/
static void processStatusErrors(Status s, BSONObjBuilder* builder);
};
/**
* Install a system metrics collector if it exists as a periodic collector.
*/
void installSystemMetricsCollector(FTDCController* controller);
} // namespace mongo
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