frostfs-http-gw/metrics/service.go

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package metrics
import (
"context"
"net/http"
"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
"go.uber.org/zap"
)
// Service serves metrics.
type Service struct {
*http.Server
enabled bool
log *zap.Logger
serviceType string
}
// Config is a params to configure service.
type Config struct {
Address string
Enabled bool
}
// Start runs http service with the exposed endpoint on the configured port.
func (ms *Service) Start() {
if ms.enabled {
ms.log.Info(logs.ServiceIsRunning, zap.String("endpoint", ms.Addr))
err := ms.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
ms.log.Warn(logs.ServiceCouldntStartOnConfiguredPort)
}
} else {
ms.log.Info(logs.ServiceHasntStartedSinceItsDisabled)
}
}
// ShutDown stops the service.
func (ms *Service) ShutDown(ctx context.Context) {
ms.log.Info(logs.ShuttingDownService, zap.String("endpoint", ms.Addr))
err := ms.Shutdown(ctx)
if err != nil {
ms.log.Panic(logs.CantShutDownService)
}
}