1 files changed, 0 insertions, 78 deletions
diff --git a/kamon-core/src/main/scala/kamon/metrics/instruments/HdrRecorder.scala b/kamon-core/src/main/scala/kamon/metrics/instruments/HdrRecorder.scala
deleted file mode 100644
index ce4fd76d..00000000
--- a/kamon-core/src/main/scala/kamon/metrics/instruments/HdrRecorder.scala
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * =========================================================================================
- * 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 org.HdrHistogram
-
-import java.util.concurrent.atomic.AtomicLongFieldUpdater
-import scala.annotation.tailrec
-import kamon.metrics._
-
-/**
- *  This implementation aims to be used for real time data collection where data snapshots are taken often over time.
- *  The snapshotAndReset() operation extracts all the recorded values from the histogram and resets the counts, but still
- *  leave it in a consistent state even in the case of concurrent modification while the snapshot is being taken.
- */
-class HdrRecorder(highestTrackableValue: Long, significantValueDigits: Int, scale: Scale)
-    extends AtomicHistogram(1L, highestTrackableValue, significantValueDigits) with MetricRecorder {
-
-  import HdrRecorder.totalCountUpdater
-
-  def record(value: Long): Unit = recordValue(value)
-
-  def collect(): MetricSnapshotLike = {
-    val entries = Vector.newBuilder[MetricSnapshot.Measurement]
-    val countsLength = counts.length()
-
-    @tailrec def iterate(index: Int, previousValue: Long, nrOfRecordings: Long, bucketLimit: Long, increment: Long): Long = {
-      if (index < countsLength) {
-        val currentValue = previousValue + increment
-        val countAtValue = counts.getAndSet(index, 0)
-
-        if (countAtValue > 0)
-          entries += MetricSnapshot.Measurement(currentValue, countAtValue)
-
-        if (currentValue == bucketLimit)
-          iterate(index + 1, currentValue, nrOfRecordings + countAtValue, (bucketLimit << 1) + 1, increment << 1)
-        else
-          iterate(index + 1, currentValue, nrOfRecordings + countAtValue, bucketLimit, increment)
-      } else {
-        nrOfRecordings
-      }
-    }
-
-    val nrOfRecordings = iterate(0, -1, 0, subBucketMask, 1)
-
-    def tryUpdateTotalCount: Boolean = {
-      val previousTotalCount = getTotalCount
-      val newTotalCount = previousTotalCount - nrOfRecordings
-
-      totalCountUpdater.compareAndSet(this, previousTotalCount, newTotalCount)
-    }
-
-    while (!tryUpdateTotalCount) {}
-
-    MetricSnapshot(InstrumentTypes.Histogram, nrOfRecordings, scale, entries.result())
-  }
-
-}
-
-object HdrRecorder {
-  val totalCountUpdater = AtomicLongFieldUpdater.newUpdater(classOf[AtomicHistogram], "totalCount")
-
-  def apply(highestTrackableValue: Long, significantValueDigits: Int, scale: Scale): HdrRecorder =
-    new HdrRecorder(highestTrackableValue, significantValueDigits, scale)
-
-}