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/*
* =========================================================================================
* Copyright © 2013 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 kamon.metrics.instruments.ContinuousHdrRecorder
import org.HdrHistogram.HdrRecorder
import com.typesafe.config.Config
case class CustomMetric(name: String) extends MetricGroupIdentity {
val category = CustomMetric
}
object CustomMetric extends MetricGroupCategory {
val name = "custom-metric"
val RecordedValues = new MetricIdentity { val name, tag = "recorded-values" }
def histogram(highestTrackableValue: Long, significantValueDigits: Int, scale: Scale, continuous: Boolean = false) =
new MetricGroupFactory {
type GroupRecorder = CustomMetricRecorder
def create(config: Config): CustomMetricRecorder = {
val recorder =
if (continuous) ContinuousHdrRecorder(highestTrackableValue, significantValueDigits, scale)
else HdrRecorder(highestTrackableValue, significantValueDigits, scale)
new CustomMetricRecorder(RecordedValues, recorder)
}
}
class CustomMetricRecorder(identity: MetricIdentity, underlyingRecorder: HdrRecorder)
extends MetricGroupRecorder {
def record(value: Long): Unit = underlyingRecorder.record(value)
def collect: MetricGroupSnapshot = DefaultMetricGroupSnapshot(Map((identity, underlyingRecorder.collect())))
}
}
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