38 lines
553 B
Go
38 lines
553 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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sampler := Sampler{consumer, item}
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go func() {
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for t := time.Tick(time.Duration(rateMs * int(time.Millisecond))); ; <-t {
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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{
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Value: value,
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Error: err,
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Color: self.item.Color,
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Label: self.item.Label,
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}
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self.consumer.ConsumeSample(sample)
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}
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