mirror of
https://github.com/openimsdk/open-im-server.git
synced 2025-10-31 08:29:33 +08:00
98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
// Copyright © 2023 OpenIM. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package prome
|
|
|
|
import (
|
|
"bytes"
|
|
"net/http"
|
|
"strconv"
|
|
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
)
|
|
|
|
func StartPrometheusSrv(prometheusPort int) error {
|
|
if config.Config.Prometheus.Enable {
|
|
http.Handle("/metrics", promhttp.Handler())
|
|
err := http.ListenAndServe(":"+strconv.Itoa(prometheusPort), nil)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func PrometheusHandler() gin.HandlerFunc {
|
|
h := promhttp.Handler()
|
|
return func(c *gin.Context) {
|
|
h.ServeHTTP(c.Writer, c.Request)
|
|
}
|
|
}
|
|
|
|
type responseBodyWriter struct {
|
|
gin.ResponseWriter
|
|
body *bytes.Buffer
|
|
}
|
|
|
|
func (r responseBodyWriter) Write(b []byte) (int, error) {
|
|
r.body.Write(b)
|
|
return r.ResponseWriter.Write(b)
|
|
}
|
|
|
|
func PrometheusMiddleware(c *gin.Context) {
|
|
Inc(ApiRequestCounter)
|
|
w := &responseBodyWriter{body: &bytes.Buffer{}, ResponseWriter: c.Writer}
|
|
c.Writer = w
|
|
c.Next()
|
|
if c.Writer.Status() == http.StatusOK {
|
|
Inc(ApiRequestSuccessCounter)
|
|
} else {
|
|
Inc(ApiRequestFailedCounter)
|
|
}
|
|
}
|
|
|
|
func Inc(counter prometheus.Counter) {
|
|
if config.Config.Prometheus.Enable {
|
|
if counter != nil {
|
|
counter.Inc()
|
|
}
|
|
}
|
|
}
|
|
|
|
func Add(counter prometheus.Counter, add int) {
|
|
if config.Config.Prometheus.Enable {
|
|
if counter != nil {
|
|
counter.Add(float64(add))
|
|
}
|
|
}
|
|
}
|
|
|
|
func GaugeInc(gauges prometheus.Gauge) {
|
|
if config.Config.Prometheus.Enable {
|
|
if gauges != nil {
|
|
gauges.Inc()
|
|
}
|
|
}
|
|
}
|
|
|
|
func GaugeDec(gauges prometheus.Gauge) {
|
|
if config.Config.Prometheus.Enable {
|
|
if gauges != nil {
|
|
gauges.Dec()
|
|
}
|
|
}
|
|
}
|