96 lines
2.7 KiB
Go
96 lines
2.7 KiB
Go
//
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// Copyright (c) 2018
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// Mainflux
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package api
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import (
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"time"
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"github.com/go-kit/kit/metrics"
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"github.com/mainflux/mainflux/lora"
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)
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var _ lora.Service = (*metricsMiddleware)(nil)
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type metricsMiddleware struct {
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counter metrics.Counter
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latency metrics.Histogram
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svc lora.Service
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}
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// MetricsMiddleware instruments core service by tracking request count and latency.
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func MetricsMiddleware(svc lora.Service, counter metrics.Counter, latency metrics.Histogram) lora.Service {
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return &metricsMiddleware{
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counter: counter,
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latency: latency,
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svc: svc,
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}
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}
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func (mm *metricsMiddleware) CreateThing(mfxDevID string, loraDevEUI string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "create_thing").Add(1)
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mm.latency.With("method", "create_thing").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.CreateThing(mfxDevID, loraDevEUI)
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}
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func (mm *metricsMiddleware) UpdateThing(mfxDevID string, loraDevEUI string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "update_thing").Add(1)
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mm.latency.With("method", "update_thing").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.UpdateThing(mfxDevID, loraDevEUI)
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}
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func (mm *metricsMiddleware) RemoveThing(mfxDevID string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "remove_thing").Add(1)
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mm.latency.With("method", "remove_thing").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.RemoveThing(mfxDevID)
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}
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func (mm *metricsMiddleware) CreateChannel(mfxChanID string, loraApp string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "create_channel").Add(1)
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mm.latency.With("method", "create_channel").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.CreateChannel(mfxChanID, loraApp)
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}
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func (mm *metricsMiddleware) UpdateChannel(mfxChanID string, loraApp string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "update_channel").Add(1)
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mm.latency.With("method", "update_channel").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.UpdateChannel(mfxChanID, loraApp)
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}
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func (mm *metricsMiddleware) RemoveChannel(mfxChanID string) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "remove_channel").Add(1)
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mm.latency.With("method", "remove_channel").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.RemoveChannel(mfxChanID)
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}
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func (mm *metricsMiddleware) Publish(m lora.Message) error {
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defer func(begin time.Time) {
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mm.counter.With("method", "message_router").Add(1)
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mm.latency.With("method", "message_router").Observe(time.Since(begin).Seconds())
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}(time.Now())
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return mm.svc.Publish(m)
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}
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