103 lines
3.9 KiB
Go
103 lines
3.9 KiB
Go
// Copyright (c) Mainflux
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// SPDX-License-Identifier: Apache-2.0
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//go: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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notifiers "github.com/mainflux/mainflux/consumers/notifiers"
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mflog "github.com/mainflux/mainflux/logger"
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)
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var _ notifiers.Service = (*loggingMiddleware)(nil)
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type loggingMiddleware struct {
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logger mflog.Logger
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svc notifiers.Service
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}
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// LoggingMiddleware adds logging facilities to the core service.
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func LoggingMiddleware(svc notifiers.Service, logger mflog.Logger) notifiers.Service {
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return &loggingMiddleware{logger, svc}
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}
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// CreateSubscription logs the create_subscription request. It logs token and subscription ID and the time it took to complete the request.
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// If the request fails, it logs the error.
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func (lm *loggingMiddleware) CreateSubscription(ctx context.Context, token string, sub notifiers.Subscription) (id string, err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method create_subscription with the id %s for token %s took %s to complete", id, token, 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.CreateSubscription(ctx, token, sub)
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}
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// ViewSubscription logs the view_subscription request. It logs token and subscription topic and the time it took to complete the request.
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// If the request fails, it logs the error.
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func (lm *loggingMiddleware) ViewSubscription(ctx context.Context, token, topic string) (sub notifiers.Subscription, err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method view_subscription with the topic %s for token %s took %s to complete", topic, token, 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.ViewSubscription(ctx, token, topic)
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}
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// ListSubscriptions logs the list_subscriptions request. It logs token and subscription topic and the time it took to complete the request.
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// If the request fails, it logs the error.
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func (lm *loggingMiddleware) ListSubscriptions(ctx context.Context, token string, pm notifiers.PageMetadata) (res notifiers.Page, err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method list_subscriptions for topic %s and token %s took %s to complete", pm.Topic, token, 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.ListSubscriptions(ctx, token, pm)
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}
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// RemoveSubscription logs the remove_subscription request. It logs token and subscription ID and the time it took to complete the request.
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// If the request fails, it logs the error.
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func (lm *loggingMiddleware) RemoveSubscription(ctx context.Context, token, id string) (err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method remove_subscription for subscription %s took %s to complete", id, 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.RemoveSubscription(ctx, token, id)
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}
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// ConsumeBlocking logs the consume_blocking request. It logs the message and the time it took to complete the request.
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// If the request fails, it logs the error.
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func (lm *loggingMiddleware) ConsumeBlocking(msg interface{}) (err error) {
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defer func(begin time.Time) {
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message := fmt.Sprintf("Method consume took %s to complete", 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.ConsumeBlocking(msg)
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}
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