64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
//go:generate ../../../tools/readme_config_includer/generator
|
|
package unpivot
|
|
|
|
import (
|
|
_ "embed"
|
|
|
|
"github.com/influxdata/telegraf"
|
|
"github.com/influxdata/telegraf/plugins/processors"
|
|
)
|
|
|
|
//go:embed sample.conf
|
|
var sampleConfig string
|
|
|
|
type Unpivot struct {
|
|
TagKey string `toml:"tag_key"`
|
|
ValueKey string `toml:"value_key"`
|
|
}
|
|
|
|
func copyWithoutFields(metric telegraf.Metric) telegraf.Metric {
|
|
m := metric.Copy()
|
|
|
|
fieldKeys := make([]string, 0, len(m.FieldList()))
|
|
for _, field := range m.FieldList() {
|
|
fieldKeys = append(fieldKeys, field.Key)
|
|
}
|
|
|
|
for _, fk := range fieldKeys {
|
|
m.RemoveField(fk)
|
|
}
|
|
|
|
return m
|
|
}
|
|
|
|
func (*Unpivot) SampleConfig() string {
|
|
return sampleConfig
|
|
}
|
|
|
|
func (p *Unpivot) Apply(metrics ...telegraf.Metric) []telegraf.Metric {
|
|
fieldCount := 0
|
|
for _, m := range metrics {
|
|
fieldCount += len(m.FieldList())
|
|
}
|
|
|
|
results := make([]telegraf.Metric, 0, fieldCount)
|
|
|
|
for _, m := range metrics {
|
|
base := copyWithoutFields(m)
|
|
for _, field := range m.FieldList() {
|
|
newMetric := base.Copy()
|
|
newMetric.AddField(p.ValueKey, field.Value)
|
|
newMetric.AddTag(p.TagKey, field.Key)
|
|
results = append(results, newMetric)
|
|
}
|
|
m.Accept()
|
|
}
|
|
return results
|
|
}
|
|
|
|
func init() {
|
|
processors.Add("unpivot", func() telegraf.Processor {
|
|
return &Unpivot{}
|
|
})
|
|
}
|