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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.system
import java.lang.management.ManagementFactory
import akka.actor._
import akka.event.Logging
import kamon.Kamon
import kamon.metric.Metrics
import kamon.metrics._
import scala.collection.JavaConverters._
import scala.concurrent.duration._
object SystemMetrics extends ExtensionId[SystemMetricsExtension] with ExtensionIdProvider {
override def lookup(): ExtensionId[_ <: Extension] = SystemMetrics
override def createExtension(system: ExtendedActorSystem): SystemMetricsExtension = new SystemMetricsExtension(system)
}
class SystemMetricsExtension(private val system: ExtendedActorSystem) extends Kamon.Extension {
import kamon.system.SystemMetricsExtension._
val log = Logging(system, classOf[SystemMetricsExtension])
log.info(s"Starting the Kamon(SystemMetrics) extension")
val systemMetricsExtension = Kamon(Metrics)(system)
//JVM Metrics
systemMetricsExtension.register(HeapMetrics(Heap), HeapMetrics.Factory)
garbageCollectors.map { gc ⇒ systemMetricsExtension.register(GCMetrics(gc.getName), GCMetrics.Factory(gc)) }
//System Metrics
system.actorOf(SystemMetricsCollector.props(1 second), "system-metrics-collector")
}
object SystemMetricsExtension {
val CPU = "cpu"
val ProcessCPU = "process-cpu"
val Network = "network"
val Memory = "memory"
val Heap = "heap"
val garbageCollectors = ManagementFactory.getGarbageCollectorMXBeans.asScala.filter(_.isValid)
def toKB(value: Long): Long = (value / 1024)
def toMB(value: Long): Long = (value / 1024 / 1024)
def toLong(value: Double): Long = math round (value * 100L)
}
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