= akka-*: full name space for loggers - resolve #16138

reflect logger name changes in the migration guide

fix typo in migration guide

fix typo in migration guide (xml)

akka-actor/src/main/scala/akka/actor/ActorRefProvider.scala

@@ -458,7 +458,7 @@ private[akka] class LocalActorRefProvider private[akka] (
 
   override val rootPath: ActorPath = RootActorPath(Address("akka", _systemName))
 
-  private[akka] val log: LoggingAdapter = Logging(eventStream, "LocalActorRefProvider(" + rootPath.address + ")")
+  private[akka] val log: LoggingAdapter = Logging(eventStream, getClass.getName + "(" + rootPath.address + ")")
 
   override val deadLetters: InternalActorRef =
     _deadLetters.getOrElse((p: ActorPath) ⇒ new DeadLetterActorRef(this, p, eventStream)).apply(rootPath / "deadLetters")

akka-actor/src/main/scala/akka/actor/ActorSystem.scala

@@ -603,7 +603,7 @@ private[akka] class ActorSystemImpl(val name: String, applicationConfig: Config,
     dynamicAccess.createInstanceFor[LoggingFilter](LoggingFilter, arguments).get
   }
 
-  val log: LoggingAdapter = new BusLogging(eventStream, "ActorSystem(" + name + ")", this.getClass, logFilter)
+  val log: LoggingAdapter = new BusLogging(eventStream, getClass.getName + "(" + name + ")", this.getClass, logFilter)
 
   val scheduler: Scheduler = createScheduler()
 

akka-actor/src/main/scala/akka/io/Tcp.scala

@@ -548,7 +548,7 @@ class TcpExt(system: ExtendedActorSystem) extends IO.Extension {
 
     val WindowsConnectionAbortWorkaroundEnabled: Boolean = getString("windows-connection-abort-workaround-enabled") match {
       case "auto" ⇒ Helpers.isWindows
-      case _ => getBoolean("windows-connection-abort-workaround-enabled")
+      case _      ⇒ getBoolean("windows-connection-abort-workaround-enabled")
     }
 
     private[this] def getIntBytes(path: String): Int = {

akka-camel/src/main/scala/akka/camel/internal/DefaultCamel.scala

@@ -28,7 +28,7 @@ import akka.actor.{ ExtendedActorSystem, ActorRef, Props }
  */
 private[camel] class DefaultCamel(val system: ExtendedActorSystem) extends Camel {
   val supervisor = system.actorOf(Props[CamelSupervisor], "camel-supervisor")
-  private[camel] implicit val log = Logging(system, "Camel")
+  private[camel] implicit val log = Logging(system, getClass.getName)
 
   lazy val context: DefaultCamelContext = {
     val ctx = settings.ContextProvider.getContext(system)

akka-cluster/src/main/scala/akka/cluster/Cluster.scala

@@ -97,7 +97,7 @@ class Cluster(val system: ExtendedActorSystem) extends Extension {
     scala.collection.JavaConverters.setAsJavaSetConverter(selfRoles).asJava
 
   private val _isTerminated = new AtomicBoolean(false)
-  private val log = Logging(system, "Cluster")
+  private val log = Logging(system, getClass.getName)
   // ClusterJmx is initialized as the last thing in the constructor
   private var clusterJmx: Option[ClusterJmx] = None
 

akka-cluster/src/main/scala/akka/cluster/ClusterMetricsCollector.scala

@@ -778,7 +778,7 @@ class SigarMetricsCollector(address: Address, decayFactor: Double, sigar: AnyRef
 private[cluster] object MetricsCollector {
   def apply(system: ExtendedActorSystem, settings: ClusterSettings): MetricsCollector = {
     import settings.{ MetricsCollectorClass ⇒ fqcn }
-    def log = Logging(system, "MetricsCollector")
+    def log = Logging(system, getClass.getName)
     if (fqcn == classOf[SigarMetricsCollector].getName) {
       Try(new SigarMetricsCollector(system)) match {
         case Success(sigarCollector) ⇒ sigarCollector

akka-contrib/src/main/scala/akka/contrib/pattern/ClusterSharding.scala

@@ -1386,11 +1386,11 @@ object ShardCoordinator {
      */
     sealed trait CoordinatorMessage
     /**
-     * `ShardRegion` registers to `ShardCoordinator`, until it receives [[RegisterAck]]. 
+     * `ShardRegion` registers to `ShardCoordinator`, until it receives [[RegisterAck]].
      */
     @SerialVersionUID(1L) final case class Register(shardRegion: ActorRef) extends CoordinatorCommand
     /**
-     * `ShardRegion` in proxy only mode registers to `ShardCoordinator`, until it receives [[RegisterAck]]. 
+     * `ShardRegion` in proxy only mode registers to `ShardCoordinator`, until it receives [[RegisterAck]].
      */
     @SerialVersionUID(1L) final case class RegisterProxy(shardRegionProxy: ActorRef) extends CoordinatorCommand
     /**

akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst

@@ -131,3 +131,12 @@ In order to make cluster routers smarter about when they can start local routees
 ``nrOfInstances`` defined on ``Pool`` now takes ``ActorSystem`` as an argument.
 In case you have implemented a custom Pool you will have to update the method's signature,
 however the implementation can remain the same if you don't need to rely on an ActorSystem in your logic.
+
+Logger names use full class name 
+================================
+Previously, few places in akka used "simple" logger names, such as ``Cluster`` or ``Remoting``.
+Now they use full class names, such as ``akka.cluster.Cluster`` or ``akka.remote.Remoting``,
+in order to allow package level log level definitions and ease source code lookup. 
+In case you used specific "simple" logger name based rules in your ``logback.xml`` configurations,
+please change them to reflect appropriate package name, such as
+``<logger name='akka.cluster' level='warn' />`` or ``<logger name='akka.remote' level='error' />``

akka-multi-node-testkit/src/main/scala/akka/remote/testconductor/Conductor.scala

@@ -389,7 +389,7 @@ private[akka] class Controller(private var initialParticipants: Int, controllerP
 
   val settings = TestConductor().Settings
   val connection = RemoteConnection(Server, controllerPort, settings.ServerSocketWorkerPoolSize,
-    new ConductorHandler(settings.QueryTimeout, self, Logging(context.system, "ConductorHandler")))
+    new ConductorHandler(settings.QueryTimeout, self, Logging(context.system, classOf[ConductorHandler].getName)))
 
   /*
    * Supervision of the BarrierCoordinator means to catch all his bad emotions

akka-multi-node-testkit/src/main/scala/akka/remote/testconductor/Player.scala

@@ -151,7 +151,7 @@ private[akka] class ClientFSM(name: RoleName, controllerAddr: InetSocketAddress)
   val settings = TestConductor().Settings
 
   val handler = new PlayerHandler(controllerAddr, settings.ClientReconnects, settings.ReconnectBackoff,
-    settings.ClientSocketWorkerPoolSize, self, Logging(context.system, "PlayerHandler"),
+    settings.ClientSocketWorkerPoolSize, self, Logging(context.system, classOf[PlayerHandler].getName),
     context.system.scheduler)(context.dispatcher)
 
   startWith(Connecting, Data(None, None))

akka-remote/src/main/scala/akka/remote/RemoteActorRefProvider.scala

@@ -178,7 +178,7 @@ private[akka] class RemoteActorRefProvider(
     _internals = internals
     remotingTerminator ! internals
 
-    _log = Logging(eventStream, "RemoteActorRefProvider")
+    _log = Logging(eventStream, getClass.getName)
 
     // this enables reception of remote requests
     transport.start()

akka-remote/src/main/scala/akka/remote/Remoting.scala

@@ -129,7 +129,7 @@ private[remote] class Remoting(_system: ExtendedActorSystem, _provider: RemoteAc
 
   override def localAddressForRemote(remote: Address): Address = Remoting.localAddressForRemote(transportMapping, remote)
 
-  val log: LoggingAdapter = Logging(system.eventStream, "Remoting")
+  val log: LoggingAdapter = Logging(system.eventStream, getClass.getName)
   val eventPublisher = new EventPublisher(system, log, RemoteLifecycleEventsLogLevel)
 
   private def notifyError(msg: String, cause: Throwable): Unit =

akka-remote/src/main/scala/akka/remote/transport/FailureInjectorTransportAdapter.scala

@@ -57,7 +57,7 @@ private[remote] class FailureInjectorTransportAdapter(wrappedTransport: Transpor
   extends AbstractTransportAdapter(wrappedTransport)(extendedSystem.dispatcher) with AssociationEventListener {
 
   private def rng = ThreadLocalRandom.current()
-  private val log = Logging(extendedSystem, "FailureInjector (gremlin)")
+  private val log = Logging(extendedSystem, getClass.getName)
   private val shouldDebugLog: Boolean = extendedSystem.settings.config.getBoolean("akka.remote.gremlin.debug")
 
   @volatile private var upstreamListener: Option[AssociationEventListener] = None

akka-testkit/src/main/scala/akka/testkit/CallingThreadDispatcher.scala

@@ -130,7 +130,7 @@ class CallingThreadDispatcher(_configurator: MessageDispatcherConfigurator) exte
   import CallingThreadDispatcher._
   import configurator.prerequisites._
 
-  val log = akka.event.Logging(eventStream, "CallingThreadDispatcher")
+  val log = akka.event.Logging(eventStream, getClass.getName)
 
   override def id: String = Id