ensure that kamon.trace.ask-pattern-tracing setting is honored, closes #4

1 files changed, 36 insertions, 0 deletions

diff --git a/kamon-core/src/main/scala/kamon/trace/TraceExtension.scala b/kamon-core/src/main/scala/kamon/trace/TraceExtension.scala
new file mode 100644
index 00000000..a59abc18
--- /dev/null
+++ b/kamon-core/src/main/scala/kamon/trace/TraceExtension.scala
@@ -0,0 +1,36 @@
+/*
+ * =========================================================================================
+ * 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.trace
+
+import akka.actor.{ ExtendedActorSystem, ExtensionIdProvider, ExtensionId }
+import akka.actor
+import kamon.util.GlobPathFilter
+import kamon.Kamon
+
+class TraceExtension(system: ExtendedActorSystem) extends Kamon.Extension {
+  val config = system.settings.config.getConfig("kamon.trace")
+  val enableAskPatternTracing = config.getBoolean("ask-pattern-tracing")
+}
+
+object Trace extends ExtensionId[TraceExtension] with ExtensionIdProvider {
+  def lookup(): ExtensionId[_ <: actor.Extension] = Trace
+  def createExtension(system: ExtendedActorSystem): TraceExtension = new TraceExtension(system)
+
+  case class MetricGroupFilter(includes: List[GlobPathFilter], excludes: List[GlobPathFilter]) {
+    def accept(name: String): Boolean = includes.exists(_.accept(name)) && !excludes.exists(_.accept(name))
+  }
+}