telegraf/internal/models/running_input.go

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package models
import (
"fmt"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/serializers/influx"
"github.com/influxdata/telegraf/selfstat"
)
var GlobalMetricsGathered = selfstat.Register("agent", "metrics_gathered", map[string]string{})
type RunningInput struct {
Input telegraf.Input
Config *InputConfig
trace bool
defaultTags map[string]string
MetricsGathered selfstat.Stat
}
func NewRunningInput(
input telegraf.Input,
config *InputConfig,
) *RunningInput {
return &RunningInput{
Input: input,
Config: config,
MetricsGathered: selfstat.Register(
"gather",
"metrics_gathered",
map[string]string{"input": config.Name},
),
}
}
// InputConfig containing a name, interval, and filter
type InputConfig struct {
Name string
NameOverride string
MeasurementPrefix string
MeasurementSuffix string
Tags map[string]string
Filter Filter
Interval time.Duration
}
func (r *RunningInput) Name() string {
return "inputs." + r.Config.Name
}
// MakeMetric either returns a metric, or returns nil if the metric doesn't
// need to be created (because of filtering, an error, etc.)
func (r *RunningInput) MakeMetric(
measurement string,
fields map[string]interface{},
tags map[string]string,
mType telegraf.ValueType,
t time.Time,
) telegraf.Metric {
m := makemetric(
measurement,
fields,
tags,
r.Config.NameOverride,
r.Config.MeasurementPrefix,
r.Config.MeasurementSuffix,
r.Config.Tags,
r.defaultTags,
r.Config.Filter,
true,
mType,
t,
)
if r.trace && m != nil {
s := influx.NewSerializer()
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s.SetFieldSortOrder(influx.SortFields)
octets, err := s.Serialize(m)
if err == nil {
fmt.Print("> " + string(octets))
}
}
r.MetricsGathered.Incr(1)
GlobalMetricsGathered.Incr(1)
return m
}
func (r *RunningInput) Trace() bool {
return r.trace
}
func (r *RunningInput) SetTrace(trace bool) {
r.trace = trace
}
func (r *RunningInput) SetDefaultTags(tags map[string]string) {
r.defaultTags = tags
}