49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
//
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// Copyright (c) 2019
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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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"context"
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"fmt"
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"time"
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"github.com/mainflux/mainflux"
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log "github.com/mainflux/mainflux/logger"
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)
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var _ mainflux.MessagePublisher = (*loggingMiddleware)(nil)
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type loggingMiddleware struct {
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logger log.Logger
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svc mainflux.MessagePublisher
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}
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// LoggingMiddleware adds logging facilities to the adapter.
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func LoggingMiddleware(svc mainflux.MessagePublisher, logger log.Logger) mainflux.MessagePublisher {
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return &loggingMiddleware{logger, svc}
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}
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func (lm *loggingMiddleware) Publish(ctx context.Context, token string, msg mainflux.RawMessage) (err error) {
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defer func(begin time.Time) {
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destChannel := msg.Channel
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if msg.Subtopic != "" {
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destChannel = fmt.Sprintf("%s.%s", destChannel, msg.Subtopic)
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}
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message := fmt.Sprintf("Method publish to channel %s took %s to complete", destChannel, 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(ctx, token, msg)
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}
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