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search.go
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search.go
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package web
import (
"fmt"
"net/http"
"strconv"
"time"
"bosun.org/opentsdb"
"github.com/MiniProfiler/go/miniprofiler"
"github.com/gorilla/mux"
)
// UniqueMetrics returns a sorted list of available metrics.
func UniqueMetrics(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
q := r.URL.Query()
var epoch int64
if v := q.Get("since"); v != "" {
var err error
epoch, err = strconv.ParseInt(v, 10, 64)
if err != nil {
serveError(w, fmt.Errorf("could not convert since parameter (expecting epoch value): %v", err))
}
}
values, err := schedule.Search.UniqueMetrics(epoch)
if err != nil {
return nil, err
}
// remove anything starting with double underscore.
if v := q.Get("unfiltered"); v != "" {
return values, nil
}
filtered := []string{}
for _, v := range values {
if len(v) < 2 || v[0:2] != "__" {
filtered = append(filtered, v)
}
}
return filtered, nil
}
func TagKeysByMetric(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
metric := vars["metric"]
return schedule.Search.TagKeysByMetric(metric)
}
func TagValuesByMetricTagKey(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
metric := vars["metric"]
tagk := vars["tagk"]
since, err := getSince(r)
if err != nil {
return nil, err
}
return schedule.Search.TagValuesByMetricTagKey(metric, tagk, since)
}
func getSince(r *http.Request) (time.Duration, error) {
s := r.FormValue("since")
since := schedule.SystemConf.GetSearchSince()
if s != "" && s != "default" {
td, err := opentsdb.ParseDuration(s)
if err != nil {
return 0, err
}
since = time.Duration(td)
}
return since, nil
}
func FilteredTagsetsByMetric(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
metric := vars["metric"]
tagset := opentsdb.TagSet{}
var err error
ts := r.FormValue("tags")
if ts != "" {
if tagset, err = opentsdb.ParseTags(ts); err != nil {
return nil, err
}
}
since := int64(0)
sinceStr := r.FormValue("since")
if sinceStr != "" {
since, err = strconv.ParseInt(sinceStr, 10, 64) //since will be set to 0 again in case of errors
if err != nil {
return nil, err
}
}
return schedule.Search.FilteredTagSets(metric, tagset, since)
}
func MetricsByTagPair(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
since, err := getSince(r)
if err != nil {
return nil, err
}
tagk := vars["tagk"]
tagv := vars["tagv"]
return schedule.Search.MetricsByTagPair(tagk, tagv, since)
}
func MetricsByTagKey(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
tagk := vars["tagk"]
since, err := getSince(r)
if err != nil {
return nil, err
}
tagValues, err := schedule.Search.TagValuesByTagKey(tagk, since)
if err != nil {
return nil, err
}
// map[tagv][metrics...]
tagvMetrics := make(map[string][]string)
for _, tagv := range tagValues {
metrics, err := schedule.Search.MetricsByTagPair(tagk, tagv, since)
if err != nil {
return nil, err
}
tagvMetrics[tagv] = metrics
}
return tagvMetrics, nil
}
func TagValuesByTagKey(t miniprofiler.Timer, w http.ResponseWriter, r *http.Request) (interface{}, error) {
vars := mux.Vars(r)
tagk := vars["tagk"]
since, err := getSince(r)
if err != nil {
return nil, err
}
return schedule.Search.TagValuesByTagKey(tagk, since)
}