86 lines
2.6 KiB
Go
86 lines
2.6 KiB
Go
package telegraf
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import (
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"time"
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)
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// Accumulator allows adding metrics to the processing flow.
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type Accumulator interface {
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// AddFields adds a metric to the accumulator with the given measurement
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// name, fields, and tags (and timestamp). If a timestamp is not provided,
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// then the accumulator sets it to "now".
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AddFields(measurement string,
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fields map[string]interface{},
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tags map[string]string,
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t ...time.Time)
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// AddGauge is the same as AddFields, but will add the metric as a "Gauge" type
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AddGauge(measurement string,
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fields map[string]interface{},
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tags map[string]string,
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t ...time.Time)
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// AddCounter is the same as AddFields, but will add the metric as a "Counter" type
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AddCounter(measurement string,
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fields map[string]interface{},
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tags map[string]string,
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t ...time.Time)
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// AddSummary is the same as AddFields, but will add the metric as a "Summary" type
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AddSummary(measurement string,
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fields map[string]interface{},
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tags map[string]string,
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t ...time.Time)
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// AddHistogram is the same as AddFields, but will add the metric as a "Histogram" type
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AddHistogram(measurement string,
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fields map[string]interface{},
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tags map[string]string,
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t ...time.Time)
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// AddMetric adds an metric to the accumulator.
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AddMetric(Metric)
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// SetPrecision sets the timestamp rounding precision. All metrics addeds
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// added to the accumulator will have their timestamp rounded to the
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// nearest multiple of precision.
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SetPrecision(precision time.Duration)
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// Report an error.
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AddError(err error)
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// Upgrade to a TrackingAccumulator with space for maxTracked
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// metrics/batches.
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WithTracking(maxTracked int) TrackingAccumulator
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}
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// TrackingID uniquely identifies a tracked metric group
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type TrackingID uint64
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// DeliveryInfo provides the results of a delivered metric group.
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type DeliveryInfo interface {
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// ID is the TrackingID
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ID() TrackingID
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// Delivered returns true if the metric was processed successfully.
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Delivered() bool
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}
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// TrackingAccumulator is an Accumulator that provides a signal when the
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// metric has been fully processed. Sending more metrics than the accumulator
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// has been allocated for without reading status from the Accepted or Rejected
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// channels is an error.
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type TrackingAccumulator interface {
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Accumulator
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// Add the Metric and arrange for tracking feedback after processing..
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AddTrackingMetric(m Metric) TrackingID
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// Add a group of Metrics and arrange for a signal when the group has been
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// processed.
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AddTrackingMetricGroup(group []Metric) TrackingID
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// Delivered returns a channel that will contain the tracking results.
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Delivered() <-chan DeliveryInfo
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}
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