| /* |
| * 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.handler |
| |
| import akka.actor.ActorRef |
| import org.apache.toree.comm.{CommRegistrar, CommStorage} |
| import org.apache.toree.communication.utils.OrderedSupport |
| import org.apache.toree.kernel.protocol.v5.{SystemActorType, KernelMessage} |
| import org.apache.toree.kernel.protocol.v5.content.{InputReply, CommOpen} |
| import org.apache.toree.kernel.protocol.v5.kernel.{Utilities, ActorLoader} |
| import org.apache.toree.kernel.protocol.v5 |
| import org.apache.toree.utils.MessageLogSupport |
| import play.api.libs.json.Json |
| |
| import scala.concurrent.{Promise, Future} |
| |
| /** |
| * Represents the handler for both input request and input reply messages. Does |
| * not extend BaseHandler because it does not send busy/idle status messages. |
| * |
| * @param actorLoader The actor loader to use for actor communication |
| * @param responseMap The map used to maintain the links to responses |
| */ |
| class InputRequestReplyHandler( |
| actorLoader: ActorLoader, |
| responseMap: collection.mutable.Map[String, ActorRef] |
| ) extends OrderedSupport with MessageLogSupport |
| { |
| // TODO: Is there a better way than storing actor refs? |
| def receive = { |
| case kernelMessage: KernelMessage => |
| startProcessing() |
| |
| val kernelMessageType = kernelMessage.header.msg_type |
| val inputRequestType = v5.MessageType.Outgoing.InputRequest.toString |
| val inputReplyType = v5.MessageType.Incoming.InputReply.toString |
| |
| // Is this an outgoing message to request data? |
| if (kernelMessageType == inputRequestType) { |
| val session = kernelMessage.parentHeader.session |
| responseMap(session) = sender |
| |
| logger.debug("Associating input request with session " + session) |
| |
| actorLoader.load(SystemActorType.KernelMessageRelay) ! kernelMessage |
| |
| // Is this an incoming response to a previous request for data? |
| } else if (kernelMessageType == inputReplyType) { |
| val session = kernelMessage.header.session |
| val inputReply = Json.parse(kernelMessage.contentString).as[InputReply] |
| |
| logger.debug(s"Received input reply for session $session with value " + |
| s"'${inputReply.value}'") |
| |
| responseMap(session) ! inputReply.value |
| responseMap.remove(session) |
| } |
| |
| finishedProcessing() |
| } |
| |
| override def orderedTypes() : Seq[Class[_]] = {Seq(classOf[KernelMessage])} |
| } |
| |