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/* =========================================================================================
* Copyright © 2013-2017 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 kamon.Tags
import kamon.util.MeasurementUnit
trait Timer extends Histogram {
def start(): StartedTimer
}
trait StartedTimer {
def stop(): Unit
}
object StartedTimer {
def createFor(histogram: Histogram): StartedTimer = new StartedTimer {
var running = true
val startTimestamp = System.nanoTime()
override def stop(): Unit = synchronized {
if(running) {
histogram.record(System.nanoTime() - startTimestamp)
running = false
}
}
}
}
private[kamon] final class TimerImpl(val histogram: Histogram) extends Timer {
override def unit: MeasurementUnit =
histogram.unit
override def dynamicRange: DynamicRange =
histogram.dynamicRange
override def record(value: Long): Unit =
histogram.record(value)
override def record(value: Long, times: Long): Unit =
histogram.record(value, times)
override def start(): StartedTimer =
StartedTimer.createFor(histogram)
}
private[kamon] final class TimerMetricImpl(val underlyingHistogram: HistogramMetric) extends TimerMetric {
override def unit: MeasurementUnit =
underlyingHistogram.unit
override def dynamicRange: DynamicRange =
underlyingHistogram.dynamicRange
override def record(value: Long): Unit =
underlyingHistogram.record(value)
override def record(value: Long, times: Long): Unit =
underlyingHistogram.record(value, times)
override def name: String =
underlyingHistogram.name
override def refine(tags: Tags): Timer =
new TimerImpl(underlyingHistogram.refine(tags))
override def refine(tags: (String, String)*): Timer =
new TimerImpl(underlyingHistogram.refine(tags: _*))
override def refine(tag: String, value: String): Timer =
new TimerImpl(underlyingHistogram.refine(Map(tag -> value)))
override def remove(tags: Tags): Boolean =
underlyingHistogram.remove(tags)
override def remove(tags: (String, String)*): Boolean =
underlyingHistogram.remove(tags: _*)
override def remove(tag: String, value: String): Boolean =
underlyingHistogram.remove(tag, value)
override def start(): StartedTimer =
StartedTimer.createFor(underlyingHistogram)
}
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