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author | Ivan Topolnjak <ivantopo@gmail.com> | 2015-01-29 03:42:27 +0100 |
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committer | Ivan Topolnjak <ivantopo@gmail.com> | 2015-01-29 03:42:27 +0100 |
commit | 75bd9503aebee628da394a935816991e7a790092 (patch) | |
tree | f4df3333826cec805fadc14894579f1bc1054279 /kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala | |
parent | 61089a75240f5cc21b056087f1d633dd31981c61 (diff) | |
parent | 9839db9d46312435822b6b5faffbbc445af80077 (diff) | |
download | Kamon-75bd9503aebee628da394a935816991e7a790092.tar.gz Kamon-75bd9503aebee628da394a935816991e7a790092.tar.bz2 Kamon-75bd9503aebee628da394a935816991e7a790092.zip |
Merge branch 'wip/improve-metric-recorders-infrastructure'
Conflicts:
kamon-system-metrics/src/main/scala/kamon/system/SystemMetricsCollector.scala
Diffstat (limited to 'kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala b/kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala new file mode 100644 index 00000000..17c8f4c5 --- /dev/null +++ b/kamon-core/src/main/scala/kamon/metric/EntitySnapshot.scala @@ -0,0 +1,47 @@ +package kamon.metric + +import kamon.metric.instrument.{ Counter, Histogram, CollectionContext, InstrumentSnapshot } +import kamon.util.MapMerge +import scala.reflect.ClassTag + +trait EntitySnapshot { + def metrics: Map[MetricKey, InstrumentSnapshot] + def merge(that: EntitySnapshot, collectionContext: CollectionContext): EntitySnapshot + + def histogram(name: String): Option[Histogram.Snapshot] = + find[HistogramKey, Histogram.Snapshot](name) + + def minMaxCounter(name: String): Option[Histogram.Snapshot] = + find[MinMaxCounterKey, Histogram.Snapshot](name) + + def gauge(name: String): Option[Histogram.Snapshot] = + find[GaugeKey, Histogram.Snapshot](name) + + def counter(name: String): Option[Counter.Snapshot] = + find[CounterKey, Counter.Snapshot](name) + + def histograms: Map[HistogramKey, Histogram.Snapshot] = + filterByType[HistogramKey, Histogram.Snapshot] + + def minMaxCounters: Map[MinMaxCounterKey, Histogram.Snapshot] = + filterByType[MinMaxCounterKey, Histogram.Snapshot] + + def gauges: Map[GaugeKey, Histogram.Snapshot] = + filterByType[GaugeKey, Histogram.Snapshot] + + def counters: Map[CounterKey, Counter.Snapshot] = + filterByType[CounterKey, Counter.Snapshot] + + private def filterByType[K <: MetricKey, V <: InstrumentSnapshot](implicit keyCT: ClassTag[K]): Map[K, V] = + metrics.collect { case (k, v) if keyCT.runtimeClass.isInstance(k) ⇒ (k.asInstanceOf[K], v.asInstanceOf[V]) } + + private def find[K <: MetricKey, V <: InstrumentSnapshot](name: String)(implicit keyCT: ClassTag[K]) = + metrics.find { case (k, v) ⇒ keyCT.runtimeClass.isInstance(k) && k.name == name } map (_._2.asInstanceOf[V]) +} + +class DefaultEntitySnapshot(val metrics: Map[MetricKey, InstrumentSnapshot]) extends EntitySnapshot { + import MapMerge.Syntax + + override def merge(that: EntitySnapshot, collectionContext: CollectionContext): EntitySnapshot = + new DefaultEntitySnapshot(metrics.merge(that.metrics, (l, r) ⇒ l.merge(r, collectionContext))) +}
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