67 lines
1.7 KiB
Go
67 lines
1.7 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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// +build !test
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package api
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import (
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"fmt"
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"time"
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"github.com/mainflux/mainflux"
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"github.com/mainflux/mainflux/coap"
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log "github.com/mainflux/mainflux/logger"
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)
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var _ coap.Service = (*loggingMiddleware)(nil)
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type loggingMiddleware struct {
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logger log.Logger
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svc coap.Service
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}
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// LoggingMiddleware adds logging facilities to the adapter.
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func LoggingMiddleware(svc coap.Service, logger log.Logger) coap.Service {
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return &loggingMiddleware{logger, svc}
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}
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func (lm *loggingMiddleware) Publish(msg mainflux.RawMessage) (err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method publish to channel %s took %s to complete", msg.Channel, time.Since(begin))
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if err != nil {
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lm.logger.Warn(fmt.Sprintf("%s with error: %s.", message, err))
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return
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}
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lm.logger.Info(fmt.Sprintf("%s without errors.", message))
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}(time.Now())
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return lm.svc.Publish(msg)
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}
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func (lm *loggingMiddleware) Subscribe(chanID, obsID string, o *coap.Observer) (err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method subscribe to channel %s for client %s took %s to complete", chanID, obsID, time.Since(begin))
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if err != nil {
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lm.logger.Warn(fmt.Sprintf("%s with error: %s.", message, err))
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return
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}
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lm.logger.Info(fmt.Sprintf("%s without errors.", message))
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}(time.Now())
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return lm.svc.Subscribe(chanID, obsID, o)
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}
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func (lm *loggingMiddleware) Unsubscribe(obsID string) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method unsubscribe for the client %s took %s to complete without errors.", obsID, time.Since(begin))
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lm.logger.Info(fmt.Sprintf(message))
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}(time.Now())
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lm.svc.Unsubscribe(obsID)
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}
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