| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.toree.kernel.protocol.v5.kernel |
| |
| import org.apache.pekko.actor.{ActorRefFactory, ActorSelection} |
| |
| /** |
| * This trait defines the interface for loading actors based on some value |
| * (enum, attribute, etc...). The thought is to allow external consumers |
| * acquire actors through a common interface, minimizing the spread of the |
| * logic about the Actors, ActorSystem, and other similar concepts. |
| */ |
| trait ActorLoader { |
| /** |
| * This method is meant to find an actor associated with an enum value. This |
| * enum value can map to an actor associated with handling a specific kernel |
| * message, a socket type, or other functionality. |
| * |
| * @param actorEnum The enum value used to load the actor |
| * |
| * @return An ActorSelection to pass messages to |
| */ |
| def load(actorEnum: Enumeration#Value): ActorSelection |
| } |
| |
| case class SimpleActorLoader(actorRefFactory: ActorRefFactory) |
| extends ActorLoader |
| { |
| private val userActorDirectory: String = "/user/%s" |
| |
| override def load(actorEnum: Enumeration#Value): ActorSelection = { |
| actorRefFactory.actorSelection( |
| userActorDirectory.format(actorEnum.toString) |
| ) |
| } |
| |
| } |