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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 java.nio.LongBuffer
import akka.actor.{ Scheduler, Cancellable }
import akka.dispatch.MessageDispatcher
import scala.concurrent.duration.FiniteDuration
private[kamon] trait Instrument {
type SnapshotType <: InstrumentSnapshot
def collect(context: CollectionContext): SnapshotType
def cleanup: Unit
}
trait InstrumentSnapshot {
def merge(that: InstrumentSnapshot, context: CollectionContext): InstrumentSnapshot
}
class InstrumentType private[kamon] (val id: Int) extends AnyVal
object InstrumentTypes {
val Histogram = new InstrumentType(1)
val MinMaxCounter = new InstrumentType(2)
val Gauge = new InstrumentType(3)
val Counter = new InstrumentType(4)
}
trait CollectionContext {
def buffer: LongBuffer
}
object CollectionContext {
def apply(longBufferSize: Int): CollectionContext = new CollectionContext {
val buffer: LongBuffer = LongBuffer.allocate(longBufferSize)
}
}
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