70 lines
1.3 KiB
Go
70 lines
1.3 KiB
Go
package prometheus
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
"github.com/influxdata/telegraf"
|
|
"github.com/prometheus/common/expfmt"
|
|
)
|
|
|
|
// TimestampExport controls if the output contains timestamps.
|
|
type TimestampExport int
|
|
|
|
const (
|
|
NoExportTimestamp TimestampExport = iota
|
|
ExportTimestamp
|
|
)
|
|
|
|
// MetricSortOrder controls if the output is sorted.
|
|
type MetricSortOrder int
|
|
|
|
const (
|
|
NoSortMetrics MetricSortOrder = iota
|
|
SortMetrics
|
|
)
|
|
|
|
// StringHandling defines how to process string fields.
|
|
type StringHandling int
|
|
|
|
const (
|
|
DiscardStrings StringHandling = iota
|
|
StringAsLabel
|
|
)
|
|
|
|
type FormatConfig struct {
|
|
TimestampExport TimestampExport
|
|
MetricSortOrder MetricSortOrder
|
|
StringHandling StringHandling
|
|
}
|
|
|
|
type Serializer struct {
|
|
config FormatConfig
|
|
}
|
|
|
|
func NewSerializer(config FormatConfig) (*Serializer, error) {
|
|
s := &Serializer{config: config}
|
|
return s, nil
|
|
}
|
|
|
|
func (s *Serializer) Serialize(metric telegraf.Metric) ([]byte, error) {
|
|
return s.SerializeBatch([]telegraf.Metric{metric})
|
|
}
|
|
|
|
func (s *Serializer) SerializeBatch(metrics []telegraf.Metric) ([]byte, error) {
|
|
coll := NewCollection(s.config)
|
|
for _, metric := range metrics {
|
|
coll.Add(metric)
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
for _, mf := range coll.GetProto() {
|
|
enc := expfmt.NewEncoder(&buf, expfmt.FmtText)
|
|
err := enc.Encode(mf)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
return buf.Bytes(), nil
|
|
}
|