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#include <prometheus/registry.h>
#include <prometheus/gauge.h>
#include <prometheus/text_serializer.h>
#include <array>
#include <chrono>
#include <cstdlib>
#include <memory>
#include <string>
#include <thread>
#include <iostream>
// use prometheus namespace
using namespace prometheus;
// for clarity, we deduce the required types
using IntegerGauge = Gauge<int64_t>;
using FloatingGauge = Gauge<double>;
using IntegerGaugeFamily = CustomFamily<IntegerGauge>;
using FloatingGaugeFamily = CustomFamily<FloatingGauge>;
// create global registry for use it from our classes
static Registry globalRegistry;
class MyClass {
IntegerGaugeFamily& gaugeFamily1 { IntegerGauge::Family::Build(globalRegistry,
"gauge_family_1", "gauge for check integer functionality",
{{"type","integer"}} ) };
IntegerGauge& gauge11{ gaugeFamily1.Add({{"number", "1"}}) };
IntegerGauge& gauge12{ gaugeFamily1.Add({{"number", "2"}}) };
IntegerGauge& gauge13{ gaugeFamily1.Add({{"number", "3"}}) };
FloatingGaugeFamily& gaugeFamily2 { FloatingGauge::Family::Build(globalRegistry,
"gauge_family_2", "gauge for check floating functionality",
{{"type","float"}} ) };
FloatingGauge& gauge21{ gaugeFamily2.Add({{"number", "1"}}) };
FloatingGauge& gauge22{ gaugeFamily2.Add({{"number", "2"}}) };
FloatingGauge& gauge23{ gaugeFamily2.Add({{"number", "3"}}) };
public:
MyClass() = default;
void member_to_do_something() {
const int random_value = std::rand();
if (random_value & 1 ) gauge11++; else gauge11--;
if (random_value & (1 << 1)) gauge12++; else gauge12--;
if (random_value & (1 << 2)) gauge13++; else gauge13--;
if (random_value & (1 << 3)) gauge21++; else gauge21--;
if (random_value & (1 << 4)) gauge22++; else gauge22--;
if (random_value & (1 << 5)) gauge23++; else gauge23--;
}
};
int main() {
MyClass myClass;
for (;; ) {
std::this_thread::sleep_for(std::chrono::seconds(1));
myClass.member_to_do_something();
TextSerializer text_serializer;
text_serializer.Serialize(std::cout, globalRegistry.Collect());
}
}
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