aboutsummaryrefslogtreecommitdiff
path: root/kamon-core/src/main/scala/kamon/metric/DynamicRange.scala
blob: f26b1052c21a3163a4ee11483f83034bee143d33 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
package kamon.metric

import java.util.concurrent.TimeUnit

case class DynamicRange(lowestDiscernibleValue: Long, highestTrackableValue: Long, significantValueDigits: Int) {
  def upTo(highestTrackableValue: Long): DynamicRange =
    copy(highestTrackableValue = highestTrackableValue)

  def startingFrom(lowestDiscernibleValue: Long): DynamicRange =
    copy(lowestDiscernibleValue = lowestDiscernibleValue)
}

object DynamicRange {
  private val oneHourInNanoseconds = TimeUnit.HOURS.toNanos(1)

  /**
    * Provides a range from 0 to 3.6e+12 (one hour in nanoseconds) with a value precision of 1 significant digit (10%)
    * across that range.
    */
  val Loose = DynamicRange(1L, oneHourInNanoseconds, 1)

  /**
    * Provides a range from 0 to 3.6e+12 (one hour in nanoseconds) with a value precision of 2 significant digit (1%)
    * across that range.
    */
  val Default = DynamicRange(1L, oneHourInNanoseconds, 2)

  /**
    * Provides a range from 0 to 3.6e+12 (one hour in nanoseconds) with a value precision of 3 significant digit (0.1%)
    * across that range.
    */
  val Fine = DynamicRange(1L, oneHourInNanoseconds, 3)
}