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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.metric
import akka.actor.ActorSystem
import com.typesafe.config.Config
import kamon.metric.instrument.{ Counter, Histogram }
case class RouterMetrics(name: String) extends MetricGroupIdentity {
val category = RouterMetrics
}
object RouterMetrics extends MetricGroupCategory {
val name = "router"
case object ProcessingTime extends MetricIdentity { val name = "processing-time" }
case object TimeInMailbox extends MetricIdentity { val name = "time-in-mailbox" }
case object Errors extends MetricIdentity { val name = "errors" }
case class RouterMetricsRecorder(processingTime: Histogram, timeInMailbox: Histogram, errors: Counter) extends MetricGroupRecorder {
def collect(context: CollectionContext): RouterMetricSnapshot =
RouterMetricSnapshot(processingTime.collect(context), timeInMailbox.collect(context), errors.collect(context))
def cleanup: Unit = {
processingTime.cleanup
timeInMailbox.cleanup
errors.cleanup
}
}
case class RouterMetricSnapshot(processingTime: Histogram.Snapshot, timeInMailbox: Histogram.Snapshot, errors: Counter.Snapshot) extends MetricGroupSnapshot {
type GroupSnapshotType = RouterMetricSnapshot
def merge(that: RouterMetricSnapshot, context: CollectionContext): RouterMetricSnapshot =
RouterMetricSnapshot(
processingTime.merge(that.processingTime, context),
timeInMailbox.merge(that.timeInMailbox, context),
errors.merge(that.errors, context))
lazy val metrics: Map[MetricIdentity, MetricSnapshot] = Map(
ProcessingTime -> processingTime,
TimeInMailbox -> timeInMailbox,
Errors -> errors)
}
val Factory = RouterMetricGroupFactory
}
case object RouterMetricGroupFactory extends MetricGroupFactory {
import RouterMetrics._
type GroupRecorder = RouterMetricsRecorder
def create(config: Config, system: ActorSystem): RouterMetricsRecorder = {
val settings = config.getConfig("precision.router")
val processingTimeConfig = settings.getConfig("processing-time")
val timeInMailboxConfig = settings.getConfig("time-in-mailbox")
new RouterMetricsRecorder(
Histogram.fromConfig(processingTimeConfig),
Histogram.fromConfig(timeInMailboxConfig),
Counter())
}
}
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