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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 akka.actor.ActorSystem
import com.typesafe.config.Config
import kamon.metric.instrument.{ Gauge, Histogram }
import kamon.metric._
import kamon.system.SigarExtensionProvider
import org.hyperic.sigar.SigarProxy
case class CPUMetrics(name: String) extends MetricGroupIdentity {
val category = CPUMetrics
}
object CPUMetrics extends MetricGroupCategory {
val name = "cpu"
case object User extends MetricIdentity { val name = "user" }
case object System extends MetricIdentity { val name = "system" }
case object Wait extends MetricIdentity { val name = "wait" }
case object Idle extends MetricIdentity { val name = "idle" }
case class CPUMetricRecorder(user: Gauge, system: Gauge, cpuWait: Gauge, idle: Gauge)
extends MetricGroupRecorder {
def collect(context: CollectionContext): MetricGroupSnapshot = {
CPUMetricSnapshot(user.collect(context), system.collect(context), cpuWait.collect(context), idle.collect(context))
}
def cleanup: Unit = {}
}
case class CPUMetricSnapshot(user: Histogram.Snapshot, system: Histogram.Snapshot, cpuWait: Histogram.Snapshot, idle: Histogram.Snapshot)
extends MetricGroupSnapshot {
type GroupSnapshotType = CPUMetricSnapshot
def merge(that: CPUMetricSnapshot, context: CollectionContext): GroupSnapshotType = {
CPUMetricSnapshot(user.merge(that.user, context), system.merge(that.system, context), cpuWait.merge(that.cpuWait, context), idle.merge(that.idle, context))
}
lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map(
User -> user,
System -> system,
Wait -> cpuWait,
Idle -> idle)
}
val Factory = new MetricGroupFactory with SigarExtensionProvider {
def cpu = sigar.getCpu
type GroupRecorder = CPUMetricRecorder
def create(config: Config, system: ActorSystem): GroupRecorder = {
val settings = config.getConfig("precision.system.cpu")
val userConfig = settings.getConfig("user")
val systemConfig = settings.getConfig("system")
val cpuWaitConfig = settings.getConfig("wait")
val idleConfig = settings.getConfig("idle")
new CPUMetricRecorder(
Gauge.fromConfig(userConfig, system)(() ⇒ cpu.getUser),
Gauge.fromConfig(systemConfig, system)(() ⇒ cpu.getSys),
Gauge.fromConfig(cpuWaitConfig, system)(() ⇒ cpu.getWait),
Gauge.fromConfig(idleConfig, system)(() ⇒ cpu.getIdle))
}
}
}
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