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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 DiskMetrics(name: String) extends MetricGroupIdentity {
val category = DiskMetrics
}
object DiskMetrics extends MetricGroupCategory {
val name = "disk"
case object Reads extends MetricIdentity { val name = "reads" }
case object Writes extends MetricIdentity { val name = "writes" }
case object Queue extends MetricIdentity { val name = "queue" }
case object ServiceTime extends MetricIdentity { val name = "service-time" }
case class DiskMetricsRecorder(reads: Histogram, writes: Histogram, queue: Histogram, serviceTime: Histogram)
extends MetricGroupRecorder {
def collect(context: CollectionContext): MetricGroupSnapshot = {
DiskMetricsSnapshot(reads.collect(context), writes.collect(context), queue.collect(context), serviceTime.collect(context))
}
def cleanup: Unit = {}
}
case class DiskMetricsSnapshot(reads: Histogram.Snapshot, writes: Histogram.Snapshot, queue: Histogram.Snapshot, serviceTime: Histogram.Snapshot)
extends MetricGroupSnapshot {
type GroupSnapshotType = DiskMetricsSnapshot
def merge(that: GroupSnapshotType, context: CollectionContext): GroupSnapshotType = {
DiskMetricsSnapshot(reads.merge(that.reads, context), writes.merge(that.writes, context), queue.merge(that.queue, context), serviceTime.merge(that.serviceTime, context))
}
lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map(
Reads -> reads,
Writes -> writes,
Queue -> queue,
ServiceTime -> serviceTime)
}
val Factory = DiskMetricGroupFactory
}
case object DiskMetricGroupFactory extends MetricGroupFactory {
import DiskMetrics._
type GroupRecorder = DiskMetricsRecorder
def create(config: Config, system: ActorSystem): GroupRecorder = {
val settings = config.getConfig("precision.system.disk")
val readsDiskConfig = settings.getConfig("reads")
val writesDiskConfig = settings.getConfig("writes")
val queueDiskConfig = settings.getConfig("queue")
val serviceTimeDiskConfig = settings.getConfig("service-time")
new DiskMetricsRecorder(
Histogram.fromConfig(readsDiskConfig),
Histogram.fromConfig(writesDiskConfig),
Histogram.fromConfig(queueDiskConfig),
Histogram.fromConfig(serviceTimeDiskConfig))
}
}
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