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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
package kamon.metric
import kamon.util.MeasurementUnit
/**
*
* @param interval
* @param metrics
*/
case class TickSnapshot(interval: Interval, metrics: MetricsSnapshot)
case class Interval(from: Long, to: Long)
case class MetricsSnapshot(
histograms: Seq[MetricDistribution],
minMaxCounters: Seq[MetricDistribution],
gauges: Seq[MetricValue],
counters: Seq[MetricValue]
)
/**
* Snapshot for instruments that internally track a single value. Meant to be used for counters and gauges.
*
*/
case class MetricValue(name: String, tags: Map[String, String], measurementUnit: MeasurementUnit, value: Long)
/**
* Snapshot for instruments that internally the distribution of values in a defined dynamic range. Meant to be used
* with histograms and min max counters.
*/
case class MetricDistribution(name: String, tags: Map[String, String], measurementUnit: MeasurementUnit,
dynamicRange: DynamicRange, distribution: Distribution)
trait Distribution {
def buckets: Seq[Bucket]
def bucketsIterator: Iterator[Bucket]
def min: Long
def max: Long
def sum: Long
def count: Long
def percentile(p: Double): Percentile
def percentiles: Seq[Percentile]
def percentilesIterator: Iterator[Percentile]
}
trait Bucket {
def value: Long
def frequency: Long
}
trait Percentile {
def quantile: Double
def value: Long
def countUnderQuantile: Long
}
trait DistributionSnapshotInstrument {
private[kamon] def snapshot(): MetricDistribution
}
trait SingleValueSnapshotInstrument {
private[kamon] def snapshot(): MetricValue
}
trait SnapshotableHistogram extends Histogram with DistributionSnapshotInstrument
trait SnapshotableMinMaxCounter extends MinMaxCounter with DistributionSnapshotInstrument
trait SnapshotableCounter extends Counter with SingleValueSnapshotInstrument
trait SnapshotableGauge extends Gauge with SingleValueSnapshotInstrument
|
