diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon/instrumentation/akka/AskPatternInstrumentation.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/instrumentation/akka/AskPatternInstrumentation.scala | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/kamon/instrumentation/akka/AskPatternInstrumentation.scala b/kamon-core/src/main/scala/kamon/instrumentation/akka/AskPatternInstrumentation.scala new file mode 100644 index 00000000..3bf13ce2 --- /dev/null +++ b/kamon-core/src/main/scala/kamon/instrumentation/akka/AskPatternInstrumentation.scala @@ -0,0 +1,55 @@ +/* + * ========================================================================================= + * Copyright © 2013-2014 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 akka.instrumentation + +import akka.actor.ActorRefProvider +import akka.event.Logging.Warning +import akka.pattern.{ AskTimeoutException, PromiseActorRef } +import kamon.Kamon +import kamon.trace.Trace +import org.aspectj.lang.annotation.{ AfterReturning, Aspect, Pointcut } + +import scala.compat.Platform.EOL + +@Aspect +class AskPatternInstrumentation { + + class StackTraceCaptureException extends Throwable + + @Pointcut(value = "execution(* akka.pattern.PromiseActorRef$.apply(..)) && args(provider, *, *)", argNames = "provider") + def promiseActorRefApply(provider: ActorRefProvider): Unit = {} + + @AfterReturning(pointcut = "promiseActorRefApply(provider)", returning = "promiseActor") + def hookAskTimeoutWarning(provider: ActorRefProvider, promiseActor: PromiseActorRef): Unit = { + val system = promiseActor.provider.guardian.underlying.system + val traceExtension = Kamon(Trace)(system) + + if (traceExtension.enableAskPatternTracing) { + val future = promiseActor.result.future + implicit val ec = system.dispatcher + val stack = new StackTraceCaptureException + + future onFailure { + case timeout: AskTimeoutException ⇒ + val stackString = stack.getStackTrace.drop(3).mkString("", EOL, EOL) + + system.eventStream.publish(Warning("AskPatternTracing", classOf[AskPatternInstrumentation], + "Timeout triggered for ask pattern registered at: " + stackString)) + } + } + } +} |