telegraf/metric/builder.go

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package metric
import (
"time"
"github.com/influxdata/telegraf"
)
type TimeFunc func() time.Time
type Builder struct {
TimeFunc
TimePrecision time.Duration
*metric
}
func NewBuilder() *Builder {
b := &Builder{
TimeFunc: time.Now,
TimePrecision: 1 * time.Nanosecond,
}
b.Reset()
return b
}
func (b *Builder) SetName(name string) {
b.name = name
}
func (b *Builder) AddTag(key string, value string) {
b.metric.AddTag(key, value)
}
func (b *Builder) AddField(key string, value interface{}) {
b.metric.AddField(key, value)
}
func (b *Builder) SetTime(tm time.Time) {
b.tm = tm
}
func (b *Builder) Reset() {
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b.metric = &metric{
tp: telegraf.Untyped,
}
}
func (b *Builder) Metric() (telegraf.Metric, error) {
if b.tm.IsZero() {
b.tm = b.TimeFunc().Truncate(b.TimePrecision)
}
return b.metric, nil
}