39 lines
553 B
Go
39 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 Poller struct {
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consumer Consumer
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item Item
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}
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func NewPoller(consumer Consumer, item Item, rateMs int) Poller {
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ticker := time.NewTicker(time.Duration(rateMs * int(time.Millisecond)))
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poller := Poller{consumer, item}
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go func() {
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for {
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select {
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case <-ticker.C:
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poller.poll()
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}
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}
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}()
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return poller
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}
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func (self *Poller) poll() {
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value, err := self.item.nextValue()
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if err != nil {
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self.consumer.ConsumeError(self.item, err)
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}
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self.consumer.ConsumeValue(self.item, value)
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}
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