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DerivedMetrics.h
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55 lines (43 loc) · 1.44 KB
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///
/// \file DerivedMetrics.h
/// \author Adam Wegrzynek <adam.wegrzynek@cern.ch>
///
#ifndef ALICEO2_MONITORING_CORE_DERIVED_METRICS_H
#define ALICEO2_MONITORING_CORE_DERIVED_METRICS_H
#include <unordered_map>
#include <memory>
#include <string>
#include <vector>
#include "Monitoring/Metric.h"
namespace o2
{
/// ALICE O2 Monitoring system
namespace monitoring
{
/// Available derived metric modes
enum class DerivedMetricMode { RATE, INCREMENT, NONE };
/// \brief Enables Calculation of derived metrics
///
/// Calculates derived metrics such as rate or increment values... (available modes are enumerated in DerivedMetricMode class)
/// For this purpose metrics are stored in a container.
class DerivedMetrics
{
public:
/// Default constructor
DerivedMetrics() = default;
/// Default destructor
~DerivedMetrics() = default;
/// Calculates rate value based on metrics stored in mCache map
/// \param metric metric object
/// \return metric object holding calculated rate value
Metric rate(Metric& metric);
/// Increments the previous metric value by value stored in the metric
/// \param metric metric object
/// \return metric object holding incremented value
Metric increment(Metric& metric);
/// Metrics store necessary for derived metrics
std::unordered_map <std::string, Metric> mStorage;
};
} // namespace monitoring
} // namespace o2
#endif // ALICEO2_MONITORING_CORE_DERIVED_METRICS_H