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/*
* =========================================================================================
* Copyright © 2013-2015 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.instrument
import kamon.metric.instrument.Gauge.CurrentValueCollector
import kamon.metric.instrument.Histogram.DynamicRange
import scala.concurrent.duration.FiniteDuration
case class InstrumentFactory(configurations: Map[String, InstrumentCustomSettings], defaults: DefaultInstrumentSettings, scheduler: RefreshScheduler) {
private def resolveSettings(instrumentName: String, codeSettings: Option[InstrumentSettings], default: InstrumentSettings): InstrumentSettings = {
configurations.get(instrumentName).flatMap { customSettings ⇒
codeSettings.map(cs ⇒ customSettings.combine(cs)) orElse (Some(customSettings.combine(default)))
} getOrElse (codeSettings.getOrElse(default))
}
def createHistogram(name: String, dynamicRange: Option[DynamicRange] = None): Histogram = {
val settings = resolveSettings(name, dynamicRange.map(dr ⇒ InstrumentSettings(dr, None)), defaults.histogram)
Histogram(settings.dynamicRange)
}
def createMinMaxCounter(name: String, dynamicRange: Option[DynamicRange] = None, refreshInterval: Option[FiniteDuration] = None): MinMaxCounter = {
val settings = resolveSettings(name, dynamicRange.map(dr ⇒ InstrumentSettings(dr, refreshInterval)), defaults.minMaxCounter)
MinMaxCounter(settings.dynamicRange, settings.refreshInterval.get, scheduler)
}
def createGauge(name: String, dynamicRange: Option[DynamicRange] = None, refreshInterval: Option[FiniteDuration] = None,
valueCollector: CurrentValueCollector): Gauge = {
val settings = resolveSettings(name, dynamicRange.map(dr ⇒ InstrumentSettings(dr, refreshInterval)), defaults.gauge)
Gauge(settings.dynamicRange, settings.refreshInterval.get, scheduler, valueCollector)
}
def createCounter(): Counter = Counter()
}
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