micro/metrics/logging/reporter.go
Prawn 2998735bf3
Tidying up the new Metrics implementations (#1974)
* Unit tests to check tagging and aggregation of Prometheus metrics

* Removing the logger output routing (because it doesn't actually work in the logger implementation)

* Emitting values with the logging reporter

Co-authored-by: chris <chris@Profanity.local>
2020-08-27 09:08:51 +01:00

54 lines
1.5 KiB
Go

package logging
import (
"time"
"github.com/micro/go-micro/v3/logger"
"github.com/micro/go-micro/v3/metrics"
)
const (
defaultLoggingLevel = logger.TraceLevel
)
// Reporter is an implementation of metrics.Reporter:
type Reporter struct {
options metrics.Options
}
// New returns a configured logging reporter:
func New(opts ...metrics.Option) *Reporter {
logger.Logf(logger.InfoLevel, "Metrics/Logging - metrics will be logged (at %s level)", defaultLoggingLevel.String())
return &Reporter{
options: metrics.NewOptions(opts...),
}
}
// Count implements the metrics.Reporter interface Count method:
func (r *Reporter) Count(metricName string, value int64, tags metrics.Tags) error {
logger.Logf(defaultLoggingLevel, "Count metric: (%s: %d) %s", metricName, value, tags)
return nil
}
// Gauge implements the metrics.Reporter interface Gauge method:
func (r *Reporter) Gauge(metricName string, value float64, tags metrics.Tags) error {
logger.Logf(defaultLoggingLevel, "Gauge metric: (%s: %f) %s", metricName, value, tags)
return nil
}
// Timing implements the metrics.Reporter interface Timing method:
func (r *Reporter) Timing(metricName string, value time.Duration, tags metrics.Tags) error {
logger.Logf(defaultLoggingLevel, "Timing metric: (%s: %s) %s", metricName, value.String(), tags)
return nil
}
// convertTags turns Tags into prometheus labels:
func convertTags(tags metrics.Tags) map[string]interface{} {
labels := make(map[string]interface{})
for key, value := range tags {
labels[key] = value
}
return labels
}