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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._
import kamon.metric.instrument.Histogram
case class ProcessCPUMetrics(name: String) extends MetricGroupIdentity {
val category = ProcessCPUMetrics
}
object ProcessCPUMetrics extends MetricGroupCategory {
val name = "proc-cpu"
case object CpuPercent extends MetricIdentity { val name = "cpu-percentage" }
case object TotalProcessTime extends MetricIdentity { val name = "total-process-time" }
case class ProcessCPUMetricsRecorder(cpuPercent: Histogram, totalProcessTime: Histogram)
extends MetricGroupRecorder {
def collect(context: CollectionContext): MetricGroupSnapshot = {
ProcessCPUMetricsSnapshot(cpuPercent.collect(context), totalProcessTime.collect(context))
}
def cleanup: Unit = {}
}
case class ProcessCPUMetricsSnapshot(cpuPercent: Histogram.Snapshot, totalProcessTime: Histogram.Snapshot)
extends MetricGroupSnapshot {
type GroupSnapshotType = ProcessCPUMetricsSnapshot
def merge(that: ProcessCPUMetricsSnapshot, context: CollectionContext): GroupSnapshotType = {
ProcessCPUMetricsSnapshot(cpuPercent.merge(that.cpuPercent, context), totalProcessTime.merge(that.totalProcessTime, context))
}
lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map(
CpuPercent -> cpuPercent,
TotalProcessTime -> totalProcessTime)
}
val Factory = ProcessCPUMetricGroupFactory
}
case object ProcessCPUMetricGroupFactory extends MetricGroupFactory {
import ProcessCPUMetrics._
type GroupRecorder = ProcessCPUMetricsRecorder
def create(config: Config, system: ActorSystem): GroupRecorder = {
val settings = config.getConfig("precision.system.process-cpu")
val cpuPercentageConfig = settings.getConfig("cpu-percentage")
val totalProcessTimeConfig = settings.getConfig("total-process-time")
new ProcessCPUMetricsRecorder(
Histogram.fromConfig(cpuPercentageConfig),
Histogram.fromConfig(totalProcessTimeConfig))
}
}
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