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package kamon.metric
import java.time.Duration
import kamon.metric.instrument._
import kamon.util.MeasurementUnit
import scala.collection.concurrent.TrieMap
trait EntityRecorder {
def histogram(name: String): Histogram
def histogram(name: String, measurementUnit: MeasurementUnit, dynamicRange: DynamicRange): Histogram
def minMaxCounter(name: String): MinMaxCounter
def minMaxCounter(name: String, measurementUnit: MeasurementUnit, dynamicRange: DynamicRange, sampleFrequency: Duration): MinMaxCounter
def gauge(name: String): Gauge
def gauge(name: String, measurementUnit: MeasurementUnit): Gauge
def counter(name: String): Counter
def counter(name: String, measurementUnit: MeasurementUnit): Counter
}
trait EntitySnapshotProducer {
def snapshot(): EntitySnapshot
}
class DefaultEntityRecorder(entity: Entity, instrumentFactory: InstrumentFactory) extends EntityRecorder with EntitySnapshotProducer {
private val histograms = TrieMap.empty[String, Histogram with DistributionSnapshotInstrument]
private val minMaxCounters = TrieMap.empty[String, MinMaxCounter with DistributionSnapshotInstrument]
private val counters = TrieMap.empty[String, Counter with SingleValueSnapshotInstrument]
private val gauges = TrieMap.empty[String, Gauge with SingleValueSnapshotInstrument]
def histogram(name: String): Histogram =
histograms.atomicGetOrElseUpdate(name, instrumentFactory.buildHistogram(entity, name))
def histogram(name: String, measurementUnit: MeasurementUnit, dynamicRange: DynamicRange): Histogram =
histograms.atomicGetOrElseUpdate(name, instrumentFactory.buildHistogram(entity, name, dynamicRange, measurementUnit))
def minMaxCounter(name: String): MinMaxCounter =
minMaxCounters.atomicGetOrElseUpdate(name, instrumentFactory.buildMinMaxCounter(entity, name))
def minMaxCounter(name: String, measurementUnit: MeasurementUnit, dynamicRange: DynamicRange, sampleFrequency: Duration): MinMaxCounter =
minMaxCounters.atomicGetOrElseUpdate(name, instrumentFactory.buildMinMaxCounter(entity, name, dynamicRange, sampleFrequency, measurementUnit))
def gauge(name: String): Gauge =
gauges.atomicGetOrElseUpdate(name, instrumentFactory.buildGauge(entity, name))
def gauge(name: String, measurementUnit: MeasurementUnit): Gauge =
gauges.atomicGetOrElseUpdate(name, instrumentFactory.buildGauge(entity, name, measurementUnit))
def counter(name: String): Counter =
counters.atomicGetOrElseUpdate(name, instrumentFactory.buildCounter(entity, name))
def counter(name: String, measurementUnit: MeasurementUnit): Counter =
counters.atomicGetOrElseUpdate(name, instrumentFactory.buildCounter(entity, name, measurementUnit))
def snapshot(): EntitySnapshot =
new EntitySnapshot(
entity,
histograms = histograms.values.map(_.snapshot()).toSeq,
minMaxCounters = minMaxCounters.values.map(_.snapshot()).toSeq,
gauges = gauges.values.map(_.snapshot()).toSeq,
counters = counters.values.map(_.snapshot()).toSeq
)
}
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