144 lines
3.5 KiB
Go
144 lines
3.5 KiB
Go
package models
|
|
|
|
import (
|
|
"log"
|
|
"math"
|
|
"time"
|
|
|
|
"github.com/influxdata/telegraf/metric"
|
|
"github.com/influxdata/telegraf/plugins"
|
|
)
|
|
|
|
// makemetric is used by both RunningAggregator & RunningInput
|
|
// to make metrics.
|
|
// nameOverride: override the name of the measurement being made.
|
|
// namePrefix: add this prefix to each measurement name.
|
|
// nameSuffix: add this suffix to each measurement name.
|
|
// pluginTags: these are tags that are specific to this plugin.
|
|
// daemonTags: these are daemon-wide global tags, and get applied after pluginTags.
|
|
// filter: this is a filter to apply to each metric being made.
|
|
// applyFilter: if false, the above filter is not applied to each metric.
|
|
// This is used by Aggregators, because aggregators use filters
|
|
// on incoming metrics instead of on created metrics.
|
|
// TODO refactor this to not have such a huge func signature.
|
|
func makemetric(
|
|
measurement string,
|
|
fields map[string]interface{},
|
|
tags map[string]string,
|
|
nameOverride string,
|
|
namePrefix string,
|
|
nameSuffix string,
|
|
pluginTags map[string]string,
|
|
daemonTags map[string]string,
|
|
filter Filter,
|
|
applyFilter bool,
|
|
mType plugins.ValueType,
|
|
t time.Time,
|
|
) plugins.Metric {
|
|
if len(fields) == 0 || len(measurement) == 0 {
|
|
return nil
|
|
}
|
|
if tags == nil {
|
|
tags = make(map[string]string)
|
|
}
|
|
|
|
// Override measurement name if set
|
|
if len(nameOverride) != 0 {
|
|
measurement = nameOverride
|
|
}
|
|
// Apply measurement prefix and suffix if set
|
|
if len(namePrefix) != 0 {
|
|
measurement = namePrefix + measurement
|
|
}
|
|
if len(nameSuffix) != 0 {
|
|
measurement = measurement + nameSuffix
|
|
}
|
|
|
|
// Apply plugin-wide tags if set
|
|
for k, v := range pluginTags {
|
|
if _, ok := tags[k]; !ok {
|
|
tags[k] = v
|
|
}
|
|
}
|
|
// Apply daemon-wide tags if set
|
|
for k, v := range daemonTags {
|
|
if _, ok := tags[k]; !ok {
|
|
tags[k] = v
|
|
}
|
|
}
|
|
|
|
// Apply the metric filter(s)
|
|
// for aggregators, the filter does not get applied when the metric is made.
|
|
// instead, the filter is applied to metric incoming into the plugin.
|
|
// ie, it gets applied in the RunningAggregator.Apply function.
|
|
if applyFilter {
|
|
if ok := filter.Apply(measurement, fields, tags); !ok {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
for k, v := range fields {
|
|
// Validate uint64 and float64 fields
|
|
// convert all int & uint types to int64
|
|
switch val := v.(type) {
|
|
case nil:
|
|
// delete nil fields
|
|
delete(fields, k)
|
|
case uint:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case uint8:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case uint16:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case uint32:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case int:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case int8:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case int16:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case int32:
|
|
fields[k] = int64(val)
|
|
continue
|
|
case uint64:
|
|
// InfluxDB does not support writing uint64
|
|
if val < uint64(9223372036854775808) {
|
|
fields[k] = int64(val)
|
|
} else {
|
|
fields[k] = int64(9223372036854775807)
|
|
}
|
|
continue
|
|
case float32:
|
|
fields[k] = float64(val)
|
|
continue
|
|
case float64:
|
|
// NaNs are invalid values in influxdb, skip measurement
|
|
if math.IsNaN(val) || math.IsInf(val, 0) {
|
|
log.Printf("D! Measurement [%s] field [%s] has a NaN or Inf "+
|
|
"field, skipping",
|
|
measurement, k)
|
|
delete(fields, k)
|
|
continue
|
|
}
|
|
default:
|
|
fields[k] = v
|
|
}
|
|
}
|
|
|
|
m, err := metric.New(measurement, tags, fields, t, mType)
|
|
if err != nil {
|
|
log.Printf("Error adding point [%s]: %s\n", measurement, err.Error())
|
|
return nil
|
|
}
|
|
|
|
return m
|
|
}
|