diff options
Diffstat (limited to 'kamon-core/src/main/scala/akka/instrumentation/AskPatternTracing.scala')
-rw-r--r-- | kamon-core/src/main/scala/akka/instrumentation/AskPatternTracing.scala | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/kamon-core/src/main/scala/akka/instrumentation/AskPatternTracing.scala b/kamon-core/src/main/scala/akka/instrumentation/AskPatternTracing.scala new file mode 100644 index 00000000..b5b23e61 --- /dev/null +++ b/kamon-core/src/main/scala/akka/instrumentation/AskPatternTracing.scala @@ -0,0 +1,49 @@ +/* =================================================== + * 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 akka.instrumentation + +import org.aspectj.lang.annotation.{ AfterReturning, Pointcut, Aspect } +import akka.event.Logging.Warning +import scala.compat.Platform.EOL +import akka.actor.ActorRefProvider +import akka.pattern.{ AskTimeoutException, PromiseActorRef } + +@Aspect +class AskPatternTracing { + + class StackTraceCaptureException extends Throwable + + @Pointcut(value = "execution(* akka.pattern.PromiseActorRef$.apply(..)) && args(provider, *)", argNames = "provider") + def promiseActorRefApply(provider: ActorRefProvider): Unit = { + provider.settings.config.getBoolean("kamon.trace.ask-pattern-tracing") + } + + @AfterReturning(pointcut = "promiseActorRefApply(provider)", returning = "promiseActor") + def hookAskTimeoutWarning(provider: ActorRefProvider, promiseActor: PromiseActorRef): Unit = { + val future = promiseActor.result.future + val system = promiseActor.provider.guardian.underlying.system + 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[AskPatternTracing], + "Timeout triggered for ask pattern registered at: " + stackString)) + } + } +} |