multiple fixes to the custom metrics collection facilities

1 files changed, 31 insertions, 0 deletions

diff --git a/kamon-core/src/main/scala/kamon/metrics/Scale.scala b/kamon-core/src/main/scala/kamon/metrics/Scale.scala
new file mode 100644
index 00000000..6899490a
--- /dev/null
+++ b/kamon-core/src/main/scala/kamon/metrics/Scale.scala
@@ -0,0 +1,31 @@
+/*
+ * =========================================================================================
+ * 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
+
+class Scale(val numericValue: Double) extends AnyVal
+
+object Scale {
+  val Nano = new Scale(1E-9)
+  val Micro = new Scale(1E-6)
+  val Milli = new Scale(1E-3)
+  val Unit = new Scale(1)
+  val Kilo = new Scale(1E3)
+  val Mega = new Scale(1E6)
+  val Giga = new Scale(1E9)
+
+  def convert(fromUnit: Scale, toUnit: Scale, value: Long): Double = (value * fromUnit.numericValue) / toUnit.numericValue
+}