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Diffstat (limited to 'kamon-system-metrics/src/main/scala/kamon/metrics/LoadAverageMetrics.scala')
-rw-r--r-- | kamon-system-metrics/src/main/scala/kamon/metrics/LoadAverageMetrics.scala | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/kamon-system-metrics/src/main/scala/kamon/metrics/LoadAverageMetrics.scala b/kamon-system-metrics/src/main/scala/kamon/metrics/LoadAverageMetrics.scala new file mode 100644 index 00000000..cd196adf --- /dev/null +++ b/kamon-system-metrics/src/main/scala/kamon/metrics/LoadAverageMetrics.scala @@ -0,0 +1,80 @@ +/* + * ========================================================================================= + * Copyright © 2013-2014 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the + * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, + * either express or implied. See the License for the specific language governing permissions + * and limitations under the License. + * ========================================================================================= + */ +package kamon.metrics + +import akka.actor.ActorSystem +import com.typesafe.config.Config +import kamon.metric._ +import kamon.metric.instrument.Histogram + +case class LoadAverageMetrics(name: String) extends MetricGroupIdentity { + val category = LoadAverageMetrics +} + +object LoadAverageMetrics extends MetricGroupCategory { + val name = "load-average" + + case object OneMinute extends MetricIdentity { val name = "last-minute" } + case object FiveMinutes extends MetricIdentity { val name = "last-five-minutes" } + case object FifteenMinutes extends MetricIdentity { val name = "last-fifteen-minutes" } + + case class LoadAverageMetricsRecorder(one: Histogram, five: Histogram, fifteen: Histogram) + extends MetricGroupRecorder { + + def collect(context: CollectionContext): MetricGroupSnapshot = { + LoadAverageMetricsSnapshot(one.collect(context), five.collect(context), fifteen.collect(context)) + } + + def cleanup: Unit = {} + } + + case class LoadAverageMetricsSnapshot(one: Histogram.Snapshot, five: Histogram.Snapshot, fifteen: Histogram.Snapshot) + extends MetricGroupSnapshot { + + type GroupSnapshotType = LoadAverageMetricsSnapshot + + def merge(that: GroupSnapshotType, context: CollectionContext): GroupSnapshotType = { + LoadAverageMetricsSnapshot(one.merge(that.one, context), five.merge(that.five, context), fifteen.merge(that.fifteen, context)) + } + + lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map( + OneMinute -> one, + FiveMinutes -> five, + FifteenMinutes -> fifteen) + } + + val Factory = LoadAverageMetricGroupFactory +} + +case object LoadAverageMetricGroupFactory extends MetricGroupFactory { + + import LoadAverageMetrics._ + + type GroupRecorder = LoadAverageMetricsRecorder + + def create(config: Config, system: ActorSystem): GroupRecorder = { + val settings = config.getConfig("precision.system.load-average") + + val oneMinuteConfig = settings.getConfig("one") + val fiveMinutesConfig = settings.getConfig("five") + val fifteenMinutesConfig = settings.getConfig("fifteen") + + new LoadAverageMetricsRecorder( + Histogram.fromConfig(oneMinuteConfig), + Histogram.fromConfig(fiveMinutesConfig), + Histogram.fromConfig(fifteenMinutesConfig)) + } +} |