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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package rest
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
"github.com/weaviate/weaviate/usecases/monitoring"
)
type RequestStatus int
const (
Ok RequestStatus = iota
UserError
ServerError
)
func (s RequestStatus) String() string {
switch s {
case Ok:
return "ok"
case UserError:
return "user_error"
case ServerError:
return "server_error"
}
return "unknown"
}
type requestsTotalMetric struct {
requestsTotal *prometheus.GaugeVec
groupClasses bool
api string
}
func newRequestsTotalMetric(prom *monitoring.PrometheusMetrics, api string) *requestsTotalMetric {
if prom == nil {
return nil
}
return &requestsTotalMetric{
requestsTotal: prom.RequestsTotal,
groupClasses: prom.Group,
api: api,
}
}
func (m *requestsTotalMetric) RequestsTotalInc(status RequestStatus, className, queryType string) {
if m == nil {
return
}
if m.groupClasses {
className = "n/a"
}
m.requestsTotal.With(prometheus.Labels{
"status": status.String(),
"class_name": className,
"api": m.api,
"query_type": queryType,
}).Inc()
}
type restApiRequestsTotal interface {
logError(className string, err error)
logOk(className string)
logUserError(className string)
logServerError(className string, err error)
}
type restApiRequestsTotalImpl struct {
metrics *requestsTotalMetric
api, queryType string
logger logrus.FieldLogger
}
func (e *restApiRequestsTotalImpl) logOk(className string) {
if e.metrics != nil {
e.metrics.RequestsTotalInc(Ok, className, e.queryType)
}
}
func (e *restApiRequestsTotalImpl) logUserError(className string) {
if e.metrics != nil {
e.metrics.RequestsTotalInc(UserError, className, e.queryType)
}
}
func (e *restApiRequestsTotalImpl) logServerError(className string, err error) {
e.logger.WithFields(logrus.Fields{
"action": "requests_total",
"api": e.api,
"query_type": e.queryType,
"class_name": className,
}).WithError(err).Error("unexpected error")
if e.metrics != nil {
e.metrics.RequestsTotalInc(ServerError, className, e.queryType)
}
}
type panicsRequestsTotal struct {
*restApiRequestsTotalImpl
}
func newPanicsRequestsTotal(metrics *monitoring.PrometheusMetrics, logger logrus.FieldLogger) restApiRequestsTotal {
return &panicsRequestsTotal{
restApiRequestsTotalImpl: &restApiRequestsTotalImpl{newRequestsTotalMetric(metrics, "rest"), "rest", "", logger},
}
}
func (e *panicsRequestsTotal) logError(className string, err error) {
e.logServerError(className, err)
}
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