telegraf/plugins/parsers/influx/handler.go

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package influx
import (
"bytes"
"errors"
"strconv"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
)
type MetricHandler struct {
builder *metric.Builder
err error
precision time.Duration
}
func NewMetricHandler() *MetricHandler {
return &MetricHandler{
builder: metric.NewBuilder(),
precision: time.Nanosecond,
}
}
func (h *MetricHandler) SetTimeFunc(f metric.TimeFunc) {
h.builder.TimeFunc = f
}
func (h *MetricHandler) SetTimePrecision(precision time.Duration) {
h.builder.TimePrecision = precision
h.precision = precision
}
func (h *MetricHandler) Metric() (telegraf.Metric, error) {
m, err := h.builder.Metric()
h.builder.Reset()
return m, err
}
func (h *MetricHandler) SetMeasurement(name []byte) error {
h.builder.SetName(nameUnescape(name))
return nil
}
func (h *MetricHandler) AddTag(key []byte, value []byte) error {
tk := unescape(key)
tv := unescape(value)
h.builder.AddTag(tk, tv)
return nil
}
func (h *MetricHandler) AddInt(key []byte, value []byte) error {
fk := unescape(key)
fv, err := parseIntBytes(bytes.TrimSuffix(value, []byte("i")), 10, 64)
if err != nil {
if numerr, ok := err.(*strconv.NumError); ok {
return numerr.Err
}
return err
}
h.builder.AddField(fk, fv)
return nil
}
func (h *MetricHandler) AddUint(key []byte, value []byte) error {
fk := unescape(key)
fv, err := parseUintBytes(bytes.TrimSuffix(value, []byte("u")), 10, 64)
if err != nil {
if numerr, ok := err.(*strconv.NumError); ok {
return numerr.Err
}
return err
}
h.builder.AddField(fk, fv)
return nil
}
func (h *MetricHandler) AddFloat(key []byte, value []byte) error {
fk := unescape(key)
fv, err := parseFloatBytes(value, 64)
if err != nil {
if numerr, ok := err.(*strconv.NumError); ok {
return numerr.Err
}
return err
}
h.builder.AddField(fk, fv)
return nil
}
func (h *MetricHandler) AddString(key []byte, value []byte) error {
fk := unescape(key)
fv := stringFieldUnescape(value)
h.builder.AddField(fk, fv)
return nil
}
func (h *MetricHandler) AddBool(key []byte, value []byte) error {
fk := unescape(key)
fv, err := parseBoolBytes(value)
if err != nil {
return errors.New("unparseable bool")
}
h.builder.AddField(fk, fv)
return nil
}
func (h *MetricHandler) SetTimestamp(tm []byte) error {
v, err := parseIntBytes(tm, 10, 64)
if err != nil {
if numerr, ok := err.(*strconv.NumError); ok {
return numerr.Err
}
return err
}
ns := v * int64(h.precision)
h.builder.SetTime(time.Unix(0, ns))
return nil
}
func (h *MetricHandler) Reset() {
h.builder.Reset()
}