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/**
* Copyright (C) 2021-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.
*/
#pragma once
#include <functional>
#include "mongo/db/process_health/fault_facet_mock.h"
#include "mongo/db/process_health/health_observer_base.h"
namespace mongo {
namespace process_health {
/**
* Mocked health observer is using a test callback to fetch the next
* fault severity value every time the periodic check is invoked.
*/
class HealthObserverMock : public HealthObserverBase {
public:
HealthObserverMock(FaultFacetType mockType,
ServiceContext* svcCtx,
std::function<double()> getSeverityCallback)
: HealthObserverBase(svcCtx),
_mockType(mockType),
_getSeverityCallback(getSeverityCallback) {}
virtual ~HealthObserverMock() = default;
protected:
FaultFacetType getType() const override {
return _mockType;
}
Future<HealthCheckStatus> periodicCheckImpl(
PeriodicHealthCheckContext&& periodicCheckContext) override {
// Detects mocked severity and handles it.
const double severity = _getSeverityCallback();
auto completionPf = makePromiseFuture<HealthCheckStatus>();
if (HealthCheckStatus::isResolved(severity)) {
LOGV2(5936603, "Mock health observer returns a resolved severity");
completionPf.promise.emplaceValue(HealthCheckStatus(getType()));
} else {
LOGV2(5936604,
"Mock health observer returns a fault severity",
"severity"_attr = severity);
completionPf.promise.emplaceValue(HealthCheckStatus(getType(), severity, "failed"));
}
return std::move(completionPf.future);
}
HealthObserverIntensity getIntensity() const override {
return HealthObserverIntensity::kNonCritical;
}
private:
const FaultFacetType _mockType;
std::function<double()> _getSeverityCallback;
};
} // namespace process_health
} // namespace mongo
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