Members/anatofuz/slides: lib/template.md annotate

annotate lib/template.md @ 4:03ab44e80533

add make script

author	Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date	Wed, 24 Jan 2018 23:23:12 +0900
parents
children	d3d4db8a0e2c

rev	line source
4 03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1 title: 分散フレームワークakkaの調査
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	2 author: Takahiro Shimizu
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3 profile:
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	4 lang: Japanese
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	7 # 調査目的
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	8 * 先輩の修論の比較材料の為に行う
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	9 * 分散フレームワークの1つであるakkaがどのような書き方、及び処理なのかを調査する
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11 # 調査内容
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	12 * akkaのmac osx,ubuntu上の導入
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 * [公式チュートリアル](https://developer.lightbend.com/guides/akka-quickstart-java/)の例題を行う
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	14 * 今回はJavaで実行した
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16 # 環境構築
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	17
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	18 * 公式からzipファイルで提供されているので落とす
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	19 * 例題はGradleで実行できるように作成されているので `$ gradle run` を実行可能.
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	20
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	21 # akkaの分散処理
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23 * akkaはアクターモデルを採用したフレームワーク
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	24 * アクターモデルでは「アクター」と呼ばれるオブジェクト同士がメッセージ通信を行うことで並列処理を実現する(イベント・ドリブン)
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25 * publicなAPIを持っていない為,強力な分離機能を持っており、複数のJVMなどでも連携可能
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	26 * 環境透過性
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	27 * 軽量
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	28 * JVM上で動き、ScalaとJavaをサポートしている
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	29
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	30 # 例題(Hello,World)
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	31
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	32 * 今回は公式チュートリアルにある、複数のアクターが挨拶をするHello Worldの例題を実行する
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	33 * <img src="https://developer.lightbend.com/guides/akka-quickstart-java/images/hello-akka-architecture.png">
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	34
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	35 * 実行結果
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	37 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	38 $ gradle run
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	39 Starting a Gradle Daemon (subsequent builds will be faster)
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	40
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 > Task :run
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42 >>> Press ENTER to exit <<<
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 [INFO] [01/16/2018 15:33:05.871] [helloakka-akka.actor.default-dispatcher-4] [akka://helloakka/user/printerActor] Howdy, Akka
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 [INFO] [01/16/2018 15:33:05.872] [helloakka-akka.actor.default-dispatcher-4] [akka://helloakka/user/printerActor] Howdy, Lightbend
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 [INFO] [01/16/2018 15:33:05.872] [helloakka-akka.actor.default-dispatcher-4] [akka://helloakka/user/printerActor] Good day, Play
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	46 [INFO] [01/16/2018 15:33:05.872] [helloakka-akka.actor.default-dispatcher-4] [akka://helloakka/user/printerActor] Hello, Java
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	47 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	48
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	49 # Hello World Actors
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 * 例題のActorrは3種類のmessageを利用する
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	52
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	53 * `WhoToGreet`
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	54 * greetingの受取用オブジェクト
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	55 * `Greet`
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	56 * greetingの実行用
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	57 * `Greeting`
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	58 * `greeting`にメッセージを含める為の命令
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	59
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	60 * 複数のスレッドで共有をする必要がある為、メッセージはimmutableでなければならない
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	61
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	62
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	63 # Greeter Actor
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	64
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	65 * `Greeter` のコンストラクタは、送信用メッセージと出力用のActorのリファレンスを必要とする
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	66 * mainの中ではGreeterは複数呼ばれている
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	67
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	68 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	69 package com.lightbend.akka.sample;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	70
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	71 import akka.actor.AbstractActor;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	72 import akka.actor.ActorRef;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	73 import akka.actor.Props;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	74 import com.lightbend.akka.sample.Printer.Greeting;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	75
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	76 public class Greeter extends AbstractActor {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	77 static public Props props(String message, ActorRef printerActor) {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	78 return Props.create(Greeter.class, () -> new Greeter(message, printerActor));
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	79 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	80
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	81 static public class WhoToGreet {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	82 public final String who;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	83
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	84 public WhoToGreet(String who) {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	85 this.who = who;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	86 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	87 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	88
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	89 static public class Greet {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	90 public Greet() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	93
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	94 private final String message;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	95 private final ActorRef printerActor;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	96 private String greeting = "";
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	97
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	98 public Greeter(String message, ActorRef printerActor) {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	99 this.message = message;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	100 this.printerActor = printerActor;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	101 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	102
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	103 @Override
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	104 public Receive createReceive() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	105 return receiveBuilder()
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	106 .match(WhoToGreet.class, wtg -> {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	107 this.greeting = message + ", " + wtg.who;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	108 })
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	109 .match(Greet.class, x -> {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	110 printerActor.tell(new Greeting(greeting), getSelf());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	111 })
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	112 .build();
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	113 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	114 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	115 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	116
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	117 # Printer Actor
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	118
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	119 * `Logging.getLogger(getContext().getSystem(), this);` で各Actorが `log.info()` に追記していく
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	120 * `Greeting` とlogsに対してhandleを所持している
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	121
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	122 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	123 package com.lightbend.akka.sample;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	124
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	125 import akka.actor.AbstractActor;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	126 import akka.actor.ActorRef;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	127 import akka.actor.Props;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	128 import akka.event.Logging;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	129 import akka.event.LoggingAdapter;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	130
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	131 public class Printer extends AbstractActor {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	132 static public Props props() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	133 return Props.create(Printer.class, () -> new Printer());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	134 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	135
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	136 static public class Greeting {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	137 public final String message;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	138
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	139 public Greeting(String message) {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	140 this.message = message;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	141 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	142 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	143
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	144 private LoggingAdapter log = Logging.getLogger(getContext().getSystem(), this);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	145
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	146 public Printer() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	147 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	148
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	149 @Override
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	150 public Receive createReceive() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	151 return receiveBuilder()
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	152 .match(Greeting.class, greeting -> {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	153 log.info(greeting.message);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	154 })
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	155 .build();
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	156 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	157 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	158 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	159
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	160
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	161 # Actorを作る
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	162
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	163 * akkaはインスタンスを作る際に `new` を使わない。これはakkaのインスタンスがリファレンスである為 (`akka.actor.ActorRef`)である。
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	164 * その為、軽量かつ柔軟にシステムに組み込むことが可能である
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	165 * akkaのActorは `akka.actor.ActorSystem` が管理する。(factoryなどとも呼ばれる)
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	166 * 例題では次のようにakkaのインスタンスを作成している。
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	167
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	168 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	169 public class AkkaQuickstart {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	170 public static void main(String[] args) {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	171 final ActorSystem system = ActorSystem.create("helloakka");
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	172 try {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	173 //#create-actors
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	174 final ActorRef printerActor =
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	175 system.actorOf(Printer.props(), "printerActor");
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	176 final ActorRef howdyGreeter =
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	177 system.actorOf(Greeter.props("Howdy", printerActor), "howdyGreeter");
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	178 final ActorRef helloGreeter =
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	179 system.actorOf(Greeter.props("Hello", printerActor), "helloGreeter");
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	180 final ActorRef goodDayGreeter =
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	181 system.actorOf(Greeter.props("Good day", printerActor), "goodDayGreeter");
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	182 //#create-actors
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	183 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	184
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	185 # メッセージ送信
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	186
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	187 * akkaのメッセージ送信は `ActorRef`の`tell`メソッドを呼ぶ。
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	188
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	189 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	190 howdyGreeter.tell(new WhoToGreet("Akka"), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	191 howdyGreeter.tell(new Greet(), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	192
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	193 howdyGreeter.tell(new WhoToGreet("Lightbend"), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	194 howdyGreeter.tell(new Greet(), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	195
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	196 helloGreeter.tell(new WhoToGreet("Java"), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	197 helloGreeter.tell(new Greet(), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	198
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	199 goodDayGreeter.tell(new WhoToGreet("Play"), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	200 goodDayGreeter.tell(new Greet(), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	201 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	202
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	203 * `Greeter` Actrorは `Printer` Actorにメッセージを送信している
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	204
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	205 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	206 printerActor.tell(new Greeting(greeting), getSelf());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	207 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	208
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	209 # テスト
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	210
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	211 * Javaで使われているのでテストはJUnitを利用できる
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	212 * akkaaでは `akka.test.javadsl.TestKit` が用意されており, TestKit が推奨されている。
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	213 * 詳しくは[公式ドキュメント](https://doc.akka.io/docs/akka/current/testing.html?language=java)を見ろということらしい…
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	214
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	215 ```
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	216 `ckage com.lightbend.akka.sample;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	217
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	218 import akka.actor.ActorRef;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	219 import akka.actor.ActorSystem;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	220 import akka.testkit.javadsl.TestKit;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	221 import com.lightbend.akka.sample.Greeter.*;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	222 import com.lightbend.akka.sample.Printer.*;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	223
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	224 import static org.junit.Assert.assertEquals;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	225
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	226 import org.junit.AfterClass;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	227 import org.junit.BeforeClass;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	228 import org.junit.Test;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	229
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	230 public class AkkaQuickstartTest {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	231 static ActorSystem system;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	232
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	233 @BeforeClass
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	234 public static void setup() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	235 system = ActorSystem.create();
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	236 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	237
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	238 @AfterClass
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	239 public static void teardown() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	240 TestKit.shutdownActorSystem(system);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	241 system = null;
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	242 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	243
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	244 @Test
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	245 public void testGreeterActorSendingOfGreeting() {
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	246 final TestKit testProbe = new TestKit(system);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	247 final ActorRef helloGreeter = system.actorOf(Greeter.props("Hello", testProbe.getRef()));
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	248 helloGreeter.tell(new WhoToGreet("Akka"), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	249 helloGreeter.tell(new Greet(), ActorRef.noSender());
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	250 Greeting greeting = testProbe.expectMsgClass(Greeting.class);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	251 assertEquals("Hello, Akka", greeting.message);
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	252 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	253 }
03ab44e80533 add make script Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	254 ```

Mercurial > hg > Members > anatofuz > slides

annotate lib/template.md @ 4:03ab44e80533