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atsClient.go
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/
atsClient.go
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package main
import (
"bytes"
"encoding/json"
"errors"
"io/ioutil"
"net/http"
"time"
log "github.com/Sirupsen/logrus"
)
var client = &http.Client{Timeout: 10 * time.Second}
func loadMetrics(config ATSExporterConfig) (*json.Decoder, error) {
req, err := http.NewRequest("GET", config.ATSURL, nil)
resp, err := client.Do(req)
if err != nil || resp == nil || resp.StatusCode != 200 {
status := 0
if resp != nil {
status = resp.StatusCode
}
log.WithFields(log.Fields{"error": err, "host": config.ATSURL, "statusCode": status}).Error("Error while retrieving data from ATSHost")
return nil, errors.New("Error while retrieving data from ATSHost")
}
body, err := ioutil.ReadAll(resp.Body)
resp.Body.Close()
if err != nil {
return nil, err
}
return json.NewDecoder(bytes.NewBuffer(body)), nil
}
func getStatsInfo(config ATSExporterConfig) ([]StatsInfo, error) {
var q []StatsInfo
d, err := loadMetrics(config)
if err != nil {
return q, err
}
q = MakeStatsInfo(d)
return q, nil
}
func getMetricMap(config ATSExporterConfig) (MetricMap, error) {
var overview MetricMap
d, err := loadMetrics(config)
if err != nil {
return overview, err
}
return MakeMap(d), nil
}