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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (C) 2019 Claudio Nave | ||
| * | ||
| * This file is part of CaesarCypher. | ||
| * | ||
| * CaesarCypher is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * CaesarCypher is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
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| package it.nave.caesarcypher.actor | ||
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| import akka.actor.typed.scaladsl.Behaviors | ||
| import akka.actor.typed.{ActorRef, Behavior} | ||
| import it.nave.caesarcypher.actor.Guardian.{GuardianMessage, ResultChar} | ||
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| object CharActor { | ||
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| trait CharMessage | ||
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| final case class CharShift(shift: Int, index: Int) extends CharMessage | ||
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| final case class LinkCharActor(nextActorChar: ActorRef[CharMessage], replyTo: ActorRef[GuardianMessage]) extends CharMessage | ||
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| def apply(char: Char, nextActorChar: ActorRef[CharMessage], replyTo: ActorRef[GuardianMessage]): Behavior[CharMessage] = Behaviors.receive { (context, message) => | ||
| context.log.info("Actor of char {}: received message {}", char, message) | ||
| message match { | ||
| case CharShift(shift, index) if shift > 0 => nextActorChar ! CharShift(shift - 1, index) | ||
| case CharShift(shift, index) if shift == 0 => replyTo ! ResultChar(char, index) | ||
| } | ||
| Behaviors.same | ||
| } | ||
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| def apply(char: Char): Behavior[CharMessage] = Behaviors.receive { (context, message) => | ||
| context.log.debug("Actor of char {}: received message {}", char, message) | ||
| message match { | ||
| case LinkCharActor(nextActorChar, replyTo) => CharActor(char, nextActorChar, replyTo) | ||
| } | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Copyright (C) 2019 Claudio Nave | ||
| * | ||
| * This file is part of CaesarCypher. | ||
| * | ||
| * CaesarCypher is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * CaesarCypher is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
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| package it.nave.caesarcypher.actor | ||
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| import akka.actor.typed.Behavior | ||
| import akka.actor.typed.scaladsl.Behaviors | ||
| import it.nave.caesarcypher.actor.CharActor.CharShift | ||
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| object Guardian { | ||
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| trait GuardianMessage | ||
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| final case class InputString(str: String) extends GuardianMessage | ||
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| final case class ResultChar(char: Char, index: Int) extends GuardianMessage | ||
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| private val ALPHABETS = List("ABCDEFGHIJKLMNOPQRSTUVWXYZ", "abcdefghijklmnopqrstuvwxyz", "0123456789") | ||
| private val SHIFT = 3 | ||
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| def apply(encrypt: Boolean): Behavior[GuardianMessage] = Behaviors.setup { context => | ||
| context.log.info(s"Guardian actor started in ${if (encrypt) "encrypt" else "decrypt"} mode") | ||
| context.log.info(s"Setting up alphabets $ALPHABETS") | ||
| val CHAR_ACTORS = ALPHABETS | ||
| .flatten | ||
| .map(char => char -> context.spawn(CharActor(char), s"CharActor-$char")) | ||
| .toMap | ||
| context.log.debug("Map of char actors: {}", CHAR_ACTORS) | ||
| for (entry <- CHAR_ACTORS) { | ||
| ALPHABETS | ||
| .find(_.contains(entry._1)) | ||
| .map(s => if (encrypt) s else s.reverse) | ||
| .map(s => s -> s.indexOf(entry._1)) | ||
| .filter(_._2 != -1) | ||
| .map(tuple => tuple copy (_2 = (tuple._2 + 1) % tuple._1.length)) | ||
| .map(tuple => tuple._1.charAt(tuple._2)) | ||
| .foreach(c => entry._2 ! CharActor.LinkCharActor(CHAR_ACTORS(c), context.self)) | ||
| } | ||
| Behaviors.receiveMessage { | ||
| case InputString(str) => | ||
| context.log.info("Received string \"{}\"", str) | ||
| val (knownChars, unknownChars) = str.zipWithIndex.partition(tuple => ALPHABETS.exists(_.contains(tuple._1))) | ||
| knownChars.foreach(tuple => CHAR_ACTORS(tuple._1) ! CharShift(SHIFT, tuple._2)) | ||
| unknownChars.foreach(tuple => context.self ! ResultChar(tuple._1, tuple._2)) | ||
| Guardian(str.length - 1, List.empty) | ||
| } | ||
| } | ||
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| def apply(count: Int, listOfChars: List[(Int, Char)]): Behavior[GuardianMessage] = Behaviors.receive { (context, message) => | ||
| context.log.info("Guardian actor: received message {}", message) | ||
| context.log.debug("Map of chars: {}", listOfChars) | ||
| context.log.debug("Count: {}", count) | ||
| message match { | ||
| case ResultChar(char, index) if count > 0 => | ||
| Guardian(count - 1, index -> char :: listOfChars) | ||
| case ResultChar(char, index) if count == 0 => | ||
| val outputStr = (index -> char :: listOfChars).sortBy(_._1).map(_._2).mkString | ||
| println(s"Output string: $outputStr") | ||
| Behaviors.stopped | ||
| } | ||
| } | ||
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| } |