1 files changed, 0 insertions, 115 deletions
diff --git a/kamon-core/src/main/scala/kamon/metric/instrument/RefreshScheduler.scala b/kamon-core/src/main/scala/kamon/metric/instrument/RefreshScheduler.scala
deleted file mode 100644
index 6bc02dc3..00000000
--- a/kamon-core/src/main/scala/kamon/metric/instrument/RefreshScheduler.scala
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * =========================================================================================
- * 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 akka.actor.{Scheduler, Cancellable}
-import org.HdrHistogram.WriterReaderPhaser
-
-import scala.collection.concurrent.TrieMap
-import scala.concurrent.ExecutionContext
-import scala.concurrent.duration.FiniteDuration
-
-trait RefreshScheduler {
-  def schedule(interval: FiniteDuration, refresh: () ⇒ Unit): Cancellable
-}
-
-/**
- *  Default implementation of RefreshScheduler that simply uses an [[akka.actor.Scheduler]] to schedule tasks to be run
- *  in the provided ExecutionContext.
- */
-class DefaultRefreshScheduler(scheduler: Scheduler, dispatcher: ExecutionContext) extends RefreshScheduler {
-  def schedule(interval: FiniteDuration, refresh: () ⇒ Unit): Cancellable =
-    scheduler.schedule(interval, interval)(refresh.apply())(dispatcher)
-}
-
-object DefaultRefreshScheduler {
-  def apply(scheduler: Scheduler, dispatcher: ExecutionContext): RefreshScheduler =
-    new DefaultRefreshScheduler(scheduler, dispatcher)
-
-  def create(scheduler: Scheduler, dispatcher: ExecutionContext): RefreshScheduler =
-    apply(scheduler, dispatcher)
-}
-
-/**
- *  RefreshScheduler implementation that accumulates all the scheduled actions until it is pointed to another refresh
- *  scheduler. Once it is pointed, all subsequent calls to `schedule` will immediately be scheduled in the pointed
- *  scheduler.
- */
-class LazyRefreshScheduler extends RefreshScheduler {
-  private val _schedulerPhaser = new WriterReaderPhaser
-  private val _backlog = new TrieMap[(FiniteDuration, () ⇒ Unit), RepointableCancellable]()
-  @volatile private var _target: Option[RefreshScheduler] = None
-
-  def schedule(interval: FiniteDuration, refresh: () ⇒ Unit): Cancellable = {
-    val criticalEnter = _schedulerPhaser.writerCriticalSectionEnter()
-    try {
-      _target.map { scheduler ⇒
-        scheduler.schedule(interval, refresh)
-
-      } getOrElse {
-        val entry = (interval, refresh)
-        val cancellable = new RepointableCancellable(entry)
-
-        _backlog.put(entry, cancellable)
-        cancellable
-      }
-
-    } finally {
-      _schedulerPhaser.writerCriticalSectionExit(criticalEnter)
-    }
-  }
-
-  def point(target: RefreshScheduler): Unit = try {
-    _schedulerPhaser.readerLock()
-
-    if (_target.isEmpty) {
-      _target = Some(target)
-      _schedulerPhaser.flipPhase(10000L)
-      _backlog.dropWhile {
-        case ((interval, refresh), repointableCancellable) ⇒
-          repointableCancellable.point(target.schedule(interval, refresh))
-          true
-      }
-    } else sys.error("A LazyRefreshScheduler cannot be pointed more than once.")
-  } finally { _schedulerPhaser.readerUnlock() }
-
-  class RepointableCancellable(entry: (FiniteDuration, () ⇒ Unit)) extends Cancellable {
-    private var _isCancelled = false
-    private var _cancellable: Option[Cancellable] = None
-
-    def isCancelled: Boolean = synchronized {
-      _cancellable.map(_.isCancelled).getOrElse(_isCancelled)
-    }
-
-    def cancel(): Boolean = synchronized {
-      _isCancelled = true
-      _cancellable.map(_.cancel()).getOrElse(_backlog.remove(entry).nonEmpty)
-    }
-
-    def point(cancellable: Cancellable): Unit = synchronized {
-      if (_cancellable.isEmpty) {
-        _cancellable = Some(cancellable)
-
-        if (_isCancelled)
-          cancellable.cancel()
-
-      } else sys.error("A RepointableCancellable cannot be pointed more than once.")
-
-    }
-  }
-}
-