Construct a path below the application guardian to be used with ActorSystem.actorFor.
Construct a path below the application guardian to be used with ActorSystem.actorFor.
Construct a path below the application guardian to be used with ActorSystem.actorFor.
Construct a path below the application guardian to be used with ActorSystem.actorFor.
Create new actor as child of this context with the given name, which must not be null, empty or start with “$”.
Create new actor as child of this context with the given name, which must
not be null, empty or start with “$”. If the given name is already in use,
and InvalidActorNameException is thrown.
See Props for details on how to obtain a Props object.
When invoked on ActorSystem, this method sends a message to the guardian
actor and blocks waiting for a reply, see akka.actor.creation-timeout in
the reference.conf.
Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).
Create new actor as child of this context and give it an automatically generated name (currently similar to base64-encoded integer count, reversed and with “$” prepended, may change in the future).
See Props for details on how to obtain a Props object.
When invoked on ActorSystem, this method sends a message to the guardian
actor and blocks waiting for a reply, see akka.actor.creation-timeout in
the reference.conf.
Block current thread until the system has been shutdown.
Block current thread until the system has been shutdown. This will block until after all on termination callbacks have been run.
Block current thread until the system has been shutdown, or the specified timeout has elapsed.
Block current thread until the system has been shutdown, or the specified timeout has elapsed. This will block until after all on termination callbacks have been run.
Actor reference where messages are re-routed to which were addressed to stopped or non-existing actors.
Actor reference where messages are re-routed to which were addressed to stopped or non-existing actors. Delivery to this actor is done on a best effort basis and hence not strictly guaranteed.
Implementation of the mechanism which is used for watch()/unwatch().
Implementation of the mechanism which is used for watch()/unwatch().
Default dispatcher as configured.
Default dispatcher as configured. This dispatcher is used for all actors in the actor system which do not have a different dispatcher configured explicitly.
Helper object for looking up configured dispatchers.
Helper object for looking up configured dispatchers.
ClassLoader wrapper which is used for reflective accesses internally.
ClassLoader wrapper which is used for reflective accesses internally. This is set to use the context class loader, if one is set, or the class loader which loaded the ActorSystem implementation. The context class loader is also set on all threads created by the ActorSystem, if one was set during creation.
Main event bus of this actor system, used for example for logging.
Main event bus of this actor system, used for example for logging.
Returns the payload that is associated with the provided extension throws an IllegalStateException if it is not registered.
Returns the payload that is associated with the provided extension throws an IllegalStateException if it is not registered. This method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
The top-level supervisor of all actors created using system.
The top-level supervisor of all actors created using system.actorOf(...).
Returns whether the specified extension is already registered, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
Returns whether the specified extension is already registered, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
Query the termination status: if it returns true, all callbacks have run and the ActorSystem has been fully stopped, i.
Query the termination status: if it returns true, all callbacks have run
and the ActorSystem has been fully stopped, i.e.
awaitTermination(0 seconds) would return normally. If this method
returns false, the status is actually unknown, since it might have
changed since you queried it.
Convenient logging adapter for logging to the ActorSystem.eventStream.
Convenient logging adapter for logging to the ActorSystem.eventStream.
Log the configuration.
Log the configuration.
The name of this actor system, used to distinguish multiple ones within the same JVM & class loader.
The name of this actor system, used to distinguish multiple ones within the same JVM & class loader.
The ActorRefProvider is the only entity which creates all actor references within this actor system.
The ActorRefProvider is the only entity which creates all actor references within this actor system.
Registers the provided extension and creates its payload, if this extension isn't already registered This method has putIfAbsent-semantics, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
Registers the provided extension and creates its payload, if this extension isn't already registered This method has putIfAbsent-semantics, this method can potentially block, waiting for the initialization of the payload, if is in the process of registration from another Thread of execution
Register a block of code (callback) to run after all actors in this actor system have been stopped.
Register a block of code (callback) to run after all actors in this actor system have been stopped. Multiple code blocks may be registered by calling this method multiple times. The callbacks will be run sequentially in reverse order of registration, i.e. last registration is run first.
Register a block of code (callback) to run after all actors in this actor system have been stopped.
Register a block of code (callback) to run after all actors in this actor system have been stopped. Multiple code blocks may be registered by calling this method multiple times. The callbacks will be run sequentially in reverse order of registration, i.e. last registration is run first.
Light-weight scheduler for running asynchronous tasks after some deadline in the future.
Light-weight scheduler for running asynchronous tasks after some deadline in the future. Not terribly precise but cheap.
The core settings extracted from the supplied configuration.
The core settings extracted from the supplied configuration.
Stop this actor system.
Stop this actor system. This will stop the guardian actor, which in turn will recursively stop all its child actors, then the system guardian (below which the logging actors reside) and the execute all registered termination handlers (see ActorSystem.registerOnTermination).
Stop the actor pointed to by the given ActorRef; this is an asynchronous operation, i.
Stop the actor pointed to by the given ActorRef; this is an asynchronous operation, i.e. involves a message send, but if invoked on an ActorContext if operating on a child of that context it will free up the name for immediate reuse.
When invoked on ActorSystem for a top-level actor, this
method sends a message to the guardian actor and blocks waiting for a reply,
see akka.actor.creation-timeout in the reference.conf.
The top-level supervisor of all system-internal services like logging.
The top-level supervisor of all system-internal services like logging.
Java API: Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Java API: Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Example:
public class MyActor extends UntypedActor {
public void onReceive(Object msg) throws Exception {
...
final List<String> path = new ArrayList<String>();
path.add("..");
path.add("myBrother");
path.add("myNephew");
final ActorRef target = context().actorFor(path);
...
}
}
For maximum performance use a collection with efficient head & tail operations.
Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Look-up an actor by applying the given path elements, starting from the
current context, where ".." signifies the parent of an actor.
Example:
class MyActor extends Actor {
def receive = {
case msg =>
...
val target = context.actorFor(Seq("..", "myBrother", "myNephew"))
...
}
}
For maximum performance use a collection with efficient head & tail operations.
Look-up an actor by path represented as string.
Look-up an actor by path represented as string.
Absolute URIs like akka://appname/user/actorA are looked up as described
for look-ups by actorOf(ActorPath).
Relative URIs like /service/actorA/childB are looked up relative to the
root path of the ActorSystem containing this factory and as
described for look-ups by actorOf(Iterable[String]).
Relative URIs like myChild/grandChild or ../myBrother are looked up
relative to the current context as described for look-ups by
actorOf(Iterable[String])
Look-up an actor by path; if it does not exist, returns a reference to the dead-letter mailbox of the ActorSystem.
Look-up an actor by path; if it does not exist, returns a reference to
the dead-letter mailbox of the ActorSystem. If the path
point to an actor which is not local, no attempt is made during this
call to verify that the actor it represents does exist or is alive; use
watch(ref) to be notified of the target’s termination, which is also
signaled if the queried path cannot be resolved.
Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally).
Construct an ActorSelection from the given path, which is parsed for wildcards (these are replaced by regular expressions internally). No attempt is made to verify the existence of any part of the supplied path, it is recommended to send a message and gather the replies in order to resolve the matching set of actors.
Java API: Create a new child actor path.
Java API: Create a new child actor path.
Java API: Recursively create a descendant’s path by appending all child names.
Java API: Recursively create a descendant’s path by appending all child names.
Start-up time in milliseconds since the epoch.
Start-up time in milliseconds since the epoch.
Up-time of this actor system in seconds.
Up-time of this actor system in seconds.
More powerful interface to the actor system’s implementation which is presented to extensions (see Extension).
Important Notice: This class is not meant to be extended by user code. If you want to actually roll your own Akka, beware that you are completely on your own in that case!