diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon/supervisor/ModuleSupervisorExtension.scala')
-rw-r--r-- | kamon-core/src/main/scala/kamon/supervisor/ModuleSupervisorExtension.scala | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/kamon-core/src/main/scala/kamon/supervisor/ModuleSupervisorExtension.scala b/kamon-core/src/main/scala/kamon/supervisor/ModuleSupervisorExtension.scala deleted file mode 100644 index ddce63fb..00000000 --- a/kamon-core/src/main/scala/kamon/supervisor/ModuleSupervisorExtension.scala +++ /dev/null @@ -1,125 +0,0 @@ -/* - * ========================================================================================= - * 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.supervisor - -import akka.actor -import akka.actor._ -import kamon.Kamon -import kamon.supervisor.KamonSupervisor.CreateModule - -import scala.concurrent.{ Promise, Future } -import scala.util.Success - -object ModuleSupervisor extends ExtensionId[ModuleSupervisorExtension] with ExtensionIdProvider { - def lookup(): ExtensionId[_ <: actor.Extension] = ModuleSupervisor - def createExtension(system: ExtendedActorSystem): ModuleSupervisorExtension = new ModuleSupervisorExtensionImpl(system) -} - -trait ModuleSupervisorExtension extends actor.Extension { - def createModule(name: String, props: Props): Future[ActorRef] -} - -class ModuleSupervisorExtensionImpl(system: ExtendedActorSystem) extends ModuleSupervisorExtension { - import system.dispatcher - - private val _settings = ModuleSupervisorSettings(system) - private val _supervisor = system.actorOf(KamonSupervisor.props(_settings, system.dynamicAccess), "kamon") - - def createModule(name: String, props: Props): Future[ActorRef] = Future {} flatMap { _: Unit ⇒ - val modulePromise = Promise[ActorRef]() - _supervisor ! CreateModule(name, props, modulePromise) - modulePromise.future - } -} - -class KamonSupervisor(settings: ModuleSupervisorSettings, dynamicAccess: DynamicAccess) extends Actor with ActorLogging { - - init() - - def receive = { - case CreateModule(name, props, childPromise) ⇒ createChildModule(name, props, childPromise) - } - - def createChildModule(name: String, props: Props, childPromise: Promise[ActorRef]): Unit = - context.child(name).map { alreadyAvailableModule ⇒ - log.warning("Received a request to create module [{}] but the module is already available, returning the existent instance.") - childPromise.complete(Success(alreadyAvailableModule)) - - } getOrElse (childPromise.complete(Success(context.actorOf(props, name)))) - - def init(): Unit = { - if (settings.modulesRequiringAspectJ.nonEmpty && !isAspectJPresent && settings.showAspectJMissingWarning) - logAspectJWeaverMissing(settings.modulesRequiringAspectJ) - - // Force initialization of all modules marked with auto-start. - settings.availableModules.filter(_.autoStart).foreach { module ⇒ - if (module.extensionClass == "none") - log.debug("Ignoring auto start of the [{}] module with no extension class.") - else - dynamicAccess.getObjectFor[ExtensionId[Kamon.Extension]](module.extensionClass).map { moduleID ⇒ - moduleID.get(context.system) - log.debug("Auto starting the [{}] module.", module.name) - - } recover { - case th: Throwable ⇒ log.error(th, "Failed to auto start the [{}] module.", module.name) - } - - } - } - - // When AspectJ is present the kamon.supervisor.AspectJPresent aspect will make this return true. - def isAspectJPresent: Boolean = false - - def logAspectJWeaverMissing(modulesRequiringAspectJ: List[AvailableModuleInfo]): Unit = { - val moduleNames = modulesRequiringAspectJ.map(_.name).mkString(", ") - val weaverMissingMessage = - """ - | - | ___ _ ___ _ _ ___ ___ _ _ - | / _ \ | | |_ | | | | | | \/ |(_) (_) - |/ /_\ \ ___ _ __ ___ ___ | |_ | | | | | | ___ __ _ __ __ ___ _ __ | . . | _ ___ ___ _ _ __ __ _ - || _ |/ __|| '_ \ / _ \ / __|| __| | | | |/\| | / _ \ / _` |\ \ / // _ \| '__| | |\/| || |/ __|/ __|| || '_ \ / _` | - || | | |\__ \| |_) || __/| (__ | |_ /\__/ / \ /\ /| __/| (_| | \ V /| __/| | | | | || |\__ \\__ \| || | | || (_| | - |\_| |_/|___/| .__/ \___| \___| \__|\____/ \/ \/ \___| \__,_| \_/ \___||_| \_| |_/|_||___/|___/|_||_| |_| \__, | - | | | __/ | - | |_| |___/ - | - | It seems like your application was not started with the -javaagent:/path-to-aspectj-weaver.jar option but Kamon detected - | the following modules which require AspecJ to work properly: - | - """.stripMargin + moduleNames + - """ - | - | If you need help on setting up the aspectj weaver go to http://kamon.io/introduction/get-started/ for more info. On the - | other hand, if you are sure that you do not need or do not want to use the weaver then you can disable this error message - | by changing the kamon.show-aspectj-missing-warning setting in your configuration file. - | - """.stripMargin - - log.error(weaverMissingMessage) - } - -} - -object KamonSupervisor { - case class CreateModule(name: String, props: Props, childPromise: Promise[ActorRef]) - - def props(settings: ModuleSupervisorSettings, dynamicAccess: DynamicAccess): Props = - Props(new KamonSupervisor(settings, dynamicAccess)) - -} - |