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83 lines
1.6 KiB
C++
83 lines
1.6 KiB
C++
//
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// Gauge.cpp
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//
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// Library: Prometheus
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// Package: Core
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// Module: Gauge
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//
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// Copyright (c) 2022, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/Prometheus/Gauge.h"
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namespace Poco {
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namespace Prometheus {
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Gauge::Gauge(const std::string& name):
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LabeledMetricImpl<GaugeSample>(Metric::Type::GAUGE, name)
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{
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}
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Gauge::Gauge(const std::string& name, const Params& params):
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LabeledMetricImpl<GaugeSample>(Metric::Type::GAUGE, name)
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{
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setHelp(params.help);
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setLabelNames(params.labelNames);
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}
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Gauge::Gauge(const std::string& name, Registry* pRegistry):
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LabeledMetricImpl<GaugeSample>(Metric::Type::GAUGE, name, pRegistry)
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{
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}
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Gauge::Gauge(const std::string& name, const Params& params, Registry* pRegistry):
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LabeledMetricImpl<GaugeSample>(Metric::Type::GAUGE, name, pRegistry)
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{
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setHelp(params.help);
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setLabelNames(params.labelNames);
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}
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double Gauge::value() const
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{
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return _sample.value();
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}
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void Gauge::exportTo(Exporter& exporter) const
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{
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if (labelNames().empty())
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{
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exporter.writeHeader(*this);
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exporter.writeSample(*this, {}, {}, _sample.value(), _sample.timestamp());
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}
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else
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{
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LabeledMetricImpl<GaugeSample>::exportTo(exporter);
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}
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}
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std::unique_ptr<GaugeSample> Gauge::createSample() const
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{
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return std::make_unique<GaugeSample>();
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}
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void Gauge::writeSample(Exporter& exporter, const std::vector<std::string>& labelValues, const GaugeSample& sample) const
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{
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exporter.writeSample(*this, labelNames(), labelValues, sample.value(), sample.timestamp());
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}
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} } // namespace Poco::Prometheus
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