32 lines
557 B
Go
32 lines
557 B
Go
package data
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import (
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"time"
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)
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type Sampler struct {
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consumer Consumer
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item Item
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}
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func NewSampler(consumer Consumer, item Item, rateMs int) Sampler {
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ticker := time.NewTicker(time.Duration(rateMs * int(time.Millisecond)))
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sampler := Sampler{consumer, item}
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go func() {
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sampler.sample()
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for ; true; <-ticker.C {
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sampler.sample()
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}
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}()
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return sampler
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}
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func (self *Sampler) sample() {
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value, err := self.item.nextValue()
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sample := Sample{Value: value, Error: err, Label: *self.item.Label}
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self.consumer.ConsumeSample(sample)
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}
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