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/*
* =========================================================================================
* 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 java.lang.management.ManagementFactory
import akka.actor.ActorSystem
import com.typesafe.config.Config
import kamon.metric._
import kamon.metric.instrument.{ Gauge, Histogram }
case class NonHeapMetrics(name: String) extends MetricGroupIdentity {
val category = NonHeapMetrics
}
object NonHeapMetrics extends MetricGroupCategory {
val name = "non-heap"
case object Used extends MetricIdentity { val name = "used" }
case object Max extends MetricIdentity { val name = "max" }
case object Committed extends MetricIdentity { val name = "committed" }
case class NonHeapMetricRecorder(used: Gauge, max: Gauge, committed: Gauge)
extends MetricGroupRecorder {
def collect(context: CollectionContext): MetricGroupSnapshot = {
NonHeapMetricSnapshot(used.collect(context), max.collect(context), committed.collect(context))
}
def cleanup: Unit = {}
}
case class NonHeapMetricSnapshot(used: Histogram.Snapshot, max: Histogram.Snapshot, committed: Histogram.Snapshot)
extends MetricGroupSnapshot {
type GroupSnapshotType = NonHeapMetricSnapshot
def merge(that: GroupSnapshotType, context: CollectionContext): GroupSnapshotType = {
NonHeapMetricSnapshot(used.merge(that.used, context), max.merge(that.max, context), committed.merge(that.committed, context))
}
lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map(
Used -> used,
Max -> max,
Committed -> committed)
}
val Factory = NonHeapMetricGroupFactory
}
case object NonHeapMetricGroupFactory extends MetricGroupFactory {
import NonHeapMetrics._
import kamon.system.SystemMetricsExtension._
def nonHeap = ManagementFactory.getMemoryMXBean.getNonHeapMemoryUsage
type GroupRecorder = NonHeapMetricRecorder
def create(config: Config, system: ActorSystem): GroupRecorder = {
val settings = config.getConfig("precision.jvm.non-heap")
val usedNonHeapConfig = settings.getConfig("used")
val maxNonHeapConfig = settings.getConfig("max")
val committedNonHeapConfig = settings.getConfig("committed")
new NonHeapMetricRecorder(
Gauge.fromConfig(usedNonHeapConfig, system, Scale.Mega)(() ⇒ toMB(nonHeap.getUsed)),
Gauge.fromConfig(maxNonHeapConfig, system, Scale.Mega)(() ⇒ toMB(nonHeap.getMax)),
Gauge.fromConfig(committedNonHeapConfig, system, Scale.Mega)(() ⇒ toMB(nonHeap.getCommitted)))
}
}
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