package handling
import (
"time"
"github.com/go-kit/kit/metrics"
"github.com/go-kit/kit/examples/shipping/cargo"
"github.com/go-kit/kit/examples/shipping/location"
"github.com/go-kit/kit/examples/shipping/voyage"
)
type instrumentingService struct {
requestCount metrics.Counter
requestLatency metrics.TimeHistogram
Service
}
// NewInstrumentingService returns an instance of an instrumenting Service.
func NewInstrumentingService(requestCount metrics.Counter, requestLatency metrics.TimeHistogram, s Service) Service {
return &instrumentingService{
requestCount: requestCount,
requestLatency: requestLatency,
Service: s,
}
}
func (s *instrumentingService) RegisterHandlingEvent(completionTime time.Time, trackingID cargo.TrackingID, voyage voyage.Number,
loc location.UNLocode, eventType cargo.HandlingEventType) error {
defer func(begin time.Time) {
methodField := metrics.Field{Key: "method", Value: "register_incident"}
s.requestCount.With(methodField).Add(1)
s.requestLatency.With(methodField).Observe(time.Since(begin))
}(time.Now())
return s.Service.RegisterHandlingEvent(completionTime, trackingID, voyage, loc, eventType)
}