83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
package rename
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import (
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/processors"
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)
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const sampleConfig = `
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## Measurement, tag, and field renamings are stored in separate sub-tables.
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## Specify one sub-table per rename operation.
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# [[processors.rename.measurement]]
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# ## measurement to change
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# from = "kilobytes_per_second"
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# to = "kbps"
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# [[processors.rename.tag]]
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# ## tag to change
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# from = "host"
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# to = "hostname"
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# [[processors.rename.field]]
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# ## field to change
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# from = "lower"
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# to = "min"
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# [[processors.rename.field]]
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# ## field to change
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# from = "upper"
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# to = "max"
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`
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type renamer struct {
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From string
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To string
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}
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type Rename struct {
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Measurement []renamer
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Tag []renamer
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Field []renamer
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}
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func (r *Rename) SampleConfig() string {
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return sampleConfig
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}
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func (r *Rename) Description() string {
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return "Rename measurements, tags, and fields that pass through this filter."
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}
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func (r *Rename) Apply(in ...telegraf.Metric) []telegraf.Metric {
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for _, point := range in {
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for _, measurementRenamer := range r.Measurement {
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if point.Name() == measurementRenamer.From {
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point.SetName(measurementRenamer.To)
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break
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}
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}
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for _, tagRenamer := range r.Tag {
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if value, ok := point.GetTag(tagRenamer.From); ok {
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point.RemoveTag(tagRenamer.From)
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point.AddTag(tagRenamer.To, value)
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}
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}
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for _, fieldRenamer := range r.Field {
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if value, ok := point.GetField(fieldRenamer.From); ok {
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point.RemoveField(fieldRenamer.From)
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point.AddField(fieldRenamer.To, value)
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}
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}
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}
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return in
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}
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func init() {
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processors.Add("rename", func() telegraf.Processor {
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return &Rename{}
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})
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}
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