mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
c3a2b63fe9
This adds the population standard deviation and variance as aggregation functions, useful for spotting how many standard deviations some samples are from the mean.
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// Copyright 2013 The Prometheus Authors
|
|
// 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 api
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
|
|
clientmodel "github.com/prometheus/client_golang/model"
|
|
|
|
"github.com/prometheus/prometheus/storage/local"
|
|
"github.com/prometheus/prometheus/web/httputils"
|
|
)
|
|
|
|
// MetricsService manages the /api HTTP endpoint.
|
|
type MetricsService struct {
|
|
Now func() clientmodel.Timestamp
|
|
Storage local.Storage
|
|
}
|
|
|
|
// RegisterHandler registers the handler for the various endpoints below /api.
|
|
func (msrv *MetricsService) RegisterHandler(pathPrefix string) {
|
|
handler := func(h func(http.ResponseWriter, *http.Request)) http.Handler {
|
|
return httputils.CompressionHandler{
|
|
Handler: http.HandlerFunc(h),
|
|
}
|
|
}
|
|
http.Handle(pathPrefix+"api/query", prometheus.InstrumentHandler(
|
|
pathPrefix+"api/query", handler(msrv.Query),
|
|
))
|
|
http.Handle(pathPrefix+"api/query_range", prometheus.InstrumentHandler(
|
|
pathPrefix+"api/query_range", handler(msrv.QueryRange),
|
|
))
|
|
http.Handle(pathPrefix+"api/metrics", prometheus.InstrumentHandler(
|
|
pathPrefix+"api/metrics", handler(msrv.Metrics),
|
|
))
|
|
}
|