func (e *Exec) Gather(acc telegraf.Accumulator) error {
out, err := e.runner.Run(e)
if err != nil {
return err
}
switch e.DataFormat {
case "", "json":
var jsonOut interface{}
err = json.Unmarshal(out, &jsonOut)
if err != nil {
return fmt.Errorf("exec: unable to parse output of '%s' as JSON, %s",
e.Command, err)
}
f := internal.JSONFlattener{}
err = f.FlattenJSON("", jsonOut)
if err != nil {
return err
}
acc.AddFields("exec", f.Fields, nil)
case "influx":
now := time.Now()
metrics, err := telegraf.ParseMetrics(out)
for _, metric := range metrics {
acc.AddFields(metric.Name(), metric.Fields(), metric.Tags(), now)
}
return err
default:
return fmt.Errorf("Unsupported data format: %s. Must be either json "+
"or influx.", e.DataFormat)
}
return nil
}
// Gathers data from a particular server
// Parameters:
// acc : The telegraf Accumulator to use
// serverURL: endpoint to send request to
// service : the service being queried
//
// Returns:
// error: Any error that may have occurred
func (h *HttpJson) gatherServer(
acc telegraf.Accumulator,
serverURL string,
) error {
resp, responseTime, err := h.sendRequest(serverURL)
if err != nil {
return err
}
var jsonOut map[string]interface{}
if err = json.Unmarshal([]byte(resp), &jsonOut); err != nil {
return errors.New("Error decoding JSON response")
}
tags := map[string]string{
"server": serverURL,
}
for _, tag := range h.TagKeys {
switch v := jsonOut[tag].(type) {
case string:
tags[tag] = v
}
delete(jsonOut, tag)
}
if responseTime >= 0 {
jsonOut["response_time"] = responseTime
}
f := internal.JSONFlattener{}
err = f.FlattenJSON("", jsonOut)
if err != nil {
return err
}
var msrmnt_name string
if h.Name == "" {
msrmnt_name = "httpjson"
} else {
msrmnt_name = "httpjson_" + h.Name
}
acc.AddFields(msrmnt_name, f.Fields, tags)
return nil
}
func (e *Elasticsearch) gatherNodeStats(url string, acc inputs.Accumulator) error {
nodeStats := &struct {
ClusterName string `json:"cluster_name"`
Nodes map[string]*node `json:"nodes"`
}{}
if err := e.gatherData(url, nodeStats); err != nil {
return err
}
for id, n := range nodeStats.Nodes {
tags := map[string]string{
"node_id": id,
"node_host": n.Host,
"node_name": n.Name,
"cluster_name": nodeStats.ClusterName,
}
for k, v := range n.Attributes {
tags["node_attribute_"+k] = v
}
stats := map[string]interface{}{
"indices": n.Indices,
"os": n.OS,
"process": n.Process,
"jvm": n.JVM,
"thread_pool": n.ThreadPool,
"fs": n.FS,
"transport": n.Transport,
"http": n.HTTP,
"breakers": n.Breakers,
}
now := time.Now()
for p, s := range stats {
f := internal.JSONFlattener{}
err := f.FlattenJSON("", s)
if err != nil {
return err
}
acc.AddFields("elasticsearch_"+p, f.Fields, tags, now)
}
}
return nil
}
func (e *Exec) Gather(acc telegraf.Accumulator) error {
out, err := e.runner.Run(e)
if err != nil {
return err
}
var jsonOut interface{}
err = json.Unmarshal(out, &jsonOut)
if err != nil {
return fmt.Errorf("exec: unable to parse output of '%s' as JSON, %s",
e.Command, err)
}
f := internal.JSONFlattener{}
err = f.FlattenJSON("", jsonOut)
if err != nil {
return err
}
acc.AddFields("exec", f.Fields, nil)
return nil
}
func (p *JsonParser) Parse(buf []byte) ([]telegraf.Metric, error) {
metrics := make([]telegraf.Metric, 0)
var jsonOut interface{}
err := json.Unmarshal(buf, &jsonOut)
if err != nil {
err = fmt.Errorf("unable to parse out as JSON, %s", err)
return nil, err
}
f := internal.JSONFlattener{}
err = f.FlattenJSON("", jsonOut)
if err != nil {
return nil, err
}
metric, err := telegraf.NewMetric("exec", nil, f.Fields, time.Now().UTC())
if err != nil {
return nil, err
}
return append(metrics, metric), nil
}