1 files changed, 34 insertions, 0 deletions
diff --git a/kamon-annotation/src/main/scala/kamon/annotation/Annotation.scala b/kamon-annotation/src/main/scala/kamon/annotation/Annotation.scala
new file mode 100644
index 00000000..6ddf57cf
--- /dev/null
+++ b/kamon-annotation/src/main/scala/kamon/annotation/Annotation.scala
@@ -0,0 +1,34 @@
+/* =========================================================================================
+ * 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.annotation
+
+import akka.actor.{ ExtendedActorSystem, Extension, ExtensionId, ExtensionIdProvider }
+import akka.event.Logging
+import kamon.Kamon
+
+object Annotation extends ExtensionId[AnnotationExtension] with ExtensionIdProvider {
+  override def lookup(): ExtensionId[_ <: Extension] = Annotation
+  override def createExtension(system: ExtendedActorSystem): AnnotationExtension = new AnnotationExtension(system)
+}
+
+class AnnotationExtension(system: ExtendedActorSystem) extends Kamon.Extension {
+  val log = Logging(system, classOf[AnnotationExtension])
+  log.info(s"Starting the Kamon(Annotation) extension")
+
+  val config = system.settings.config.getConfig("kamon.annotation")
+  val arraySize = config.getInt("instruments-array-size")
+}
+