javaone2015フィードバック @ 富山合同勉強会
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JavaOne 2015 フィードバック
日本オラクル株式会社 クラウド・テクノロジー事業統括 Fusion Middleware事業統括本部 伊藤 敬 Jan. 30th, 2016
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#j1jp
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Safe Harbor Statement
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
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本資料では櫻庭さんが公開されている画像をいくつか(たくさん)お借りしています。ありがとうございます。
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Agenda
JavaOne 2015 キーノートフィードバック & キーワード
Java EE 8 アップデート
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2
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Java 20周年を祝う JavaOne 2015 San Francisco
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JavaOne Keynote Speakers: Georges Saab, VP of Development, Java Platform
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Mark Reinhold, Chief Architect
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Mike Lehmann, VP of Product Management
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Special Guest
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久々のJavaOne Keynote 日本からの登壇: 楽天株式会社 岩崎さん&Arshalさん
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Java開発者と市場の拡大
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• 全世界で1,000万人のJava開発者
• 最も多くの開発者が選択するテクノロジー
• 130億のJavaデバイス
• 2億台の医療用デバイスでJavaが活用
• 100億台の車載デバイスでJavaが活用
• 全世界のデスクトップPCの97%でJavaが活用
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openjdk.java.net
136% 実際に活動する コミッターの増加 since 2010
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104% Javaユーザー・グループの増加 since 2010
55% Java Championの増加 since 2010
16% 非営利団体の増加 since 2014
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メンバーシップ JCPへの参画拡大 'If you want to go fast, go alone. If you want to go far, go together'
•誰でも参加可能
• アクティブなメンバーシップ数:約750
• jcp.orgのメーリングリストに登録しているユーザー数:約3,700
•会費
– 個人:無料
– Javaユーザー・グループ:無料
– 非営利団体:無料
– 営利団体:年間5,000ドル
会費を免除することが決定 JSR364で無償化する規定を策定中
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JavaOne 2015 キーワードご紹介
Oracle Confidential – Internal/Restricted/Highly Restricted 15
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番外: 11 Japanese Speakers!
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JavaOne2015 キーワード① : Internet of Things
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ラジコンカーによる車載Javaのデモ@展示会場
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ドローンとJavaのデモ
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Java ME Embedded 8: インテリジェント・エッジデバイスの実現 Java開発者によるイノベーションとIoTシステムの実現を加速
20
Embedded-Ready
Oracle IoT Cloud
Service
Java Developers
Intelligent Edge
Partners
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JavaOne 2015 キーワード②: DevOps
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JavaOne キーワード③:Microservices
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Gilt.com
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Gilt.com 毎日昼12時からセールを実施:アクセスの集中
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2011まではJava EEベースのシステムを運用
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2015 – Microservices導入
31
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Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
Java EE 8 アップデート
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Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
Java Specification Request ステータス
JSR 366 – Java EE 8 Platform Early Draft Review (EDR)
JSR 369 – Servlet 4.0 – HTTP/2 EDR
JSR 365 – CDI 2.0 – CDI for Java SE, modularity & events EDR 完了
JSR 367 – JSON-B 1.0 – JSON Binding for Java Objects EDR 完了
JSR 371 – MVC 1.0 – Model View Controller, Action-Based, HTML framework EDR
JSR 368 – JMS 2.1 – MDB Improvements, CDI Managed Bean integration EDR
JSR 372 – JSF 2.3 – Integration with WebSocket, MVC, CDI, Java 8 DateTime EDR
JSR 374 – JSON-P 1.1 – Query enhancements, Java SE 8 improvements EDR 完了
JSR 375 – Security 1.0 – Simplifications, Cloud enhancements Early Draft策定中
JSR 370 – JAX-RS 2.1 – NIO, Server-Sent Events Early Draft策定中
JSR 373 – Management 2.0 – REST based Management Early Draft策定中
Java EE 8 仕様策定の状況 (as of 25/10/2015)
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Java EE 8 主要テーマ
• HTML5 / Web Tier 機能拡張
•開発をより容易に / CDI のさらなる活用
• クラウドの実行・管理環境化
As of today…
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HTML5のサポート / Web Tier機能拡張
• JSON Binding
• JSON Processing 機能拡張
• Action-based MVC
• HTTP/2のサポート – Servlet 4.0
• Server-sent Events
– JAX-RS 2.1
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JSON-B
• Javaオブジェクト / JSON間のマーシャル/アンマーシャルを実現するAPI – XMLのJAXBランタイムAPIと類似
•既存のJSON Binding実装の成果を活用 – MOXy, Jackson, GSON, Genson, Xstream, …
– JSON Bindingプロバイダの変更を可能にする
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Java API for JSON Binding
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JSON-B 1.0 @Entity public class Person { @Id String name; String gender; @ElementCollection Map<String,String> phones; ... // getters and setters } Person duke = new Person(); duke.setName("Duke"); duke.setGender("M"); phones = new HashMap<String,String>(); phones.put("home", "650-123-4567"); phones.put("mobile", "650-234-5678"); duke.setPhones(phones); Jsonb jsonb = JsonbBuilder.create(); jsonb.toJson(duke, System.out) ;
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-234-5678"}
}
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JSON-P 1.1
• JSON-Pointer – IETF RFC 6901
– JSON文書の中の特定の値を参照するための文字列の構文を規定する
"/0/phones/mobile"
新しい標準への対応
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JSON-P 1.1 JsonArray contacts = Json.createArrayBuilder()
.add(Json.createObjectBuilder()
.add("name", "Duke")
.add("gender", "M")
.add("phones", Json.createObjectBuilder()
.add("home", "650-123-4567")
.add("mobile", "650-234-5678")))
.add(Json.createObjectBuilder()
.add("name", "Jane")
.add("gender", "F")
.add("phones", Json.createObjectBuilder()
.add("mobile", "707-555-9999")))
.build();
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-234-5678"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
JSON-P 1.1
JsonArray contacts = ...;
JsonPointer p =
new JsonPointer("/0/phones/mobile");
JsonValue v = p.getValue(contacts);
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-234-5678"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
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JSON-P 1.1
JsonArray contacts = ...;
JsonPointer p =
new JsonPointer("/0/phones/mobile");
contacts = p.replace(contacts, "650-555-1212");
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-234-5678"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
JSON-P 1.1
JsonArray contacts = ...;
JsonPointer p =
new JsonPointer("/0/phones/mobile");
contacts = p.replace(contacts, "650-555-1212");
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-555-1212"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
JSON-P 1.1
• JSON-Patch – IETF RFC 6902
• Patch is a JSON document
– JSONドキュメントを修整するためのオブジェクト / 処理の配列
– add, replace, remove, move, copy, test
–必ず “op” フィールドと “path” フィールドが必要
[
{"op":"replace", "path":"/0/phones/mobile", "value":"650-111-2222"},
{"op":"remove", "path":"/1"}
]
新しい標準への対応
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JSON-P 1.1 JsonPatchBuilder builder = new JsonPatchBuilder();
JsonArray patch =
builder.replace("0/phones/mobile", "650-111-2222")
.remove("/1")
.build();
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-234-5678"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
JSON-P 1.1 JsonPatchBuilder builder = new JsonPatchBuilder();
JsonArray patch =
builder.replace("0/phones/mobile", "650-111-2222")
.remove("/1")
.build();
JsonArray result = patch.apply(contacts);
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-111-2222"}},
{
"name":"Jane",
"gender":"F",
"phones":{
"mobile":"707-555-9999"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
JSON-P 1.1 JsonPatchBuilder builder = new JsonPatchBuilder();
JsonArray patch =
builder.replace("0/phones/mobile", "650-111-2222")
.remove("/1")
.build();
JsonArray result = patch.apply(contacts);
[
{
"name":"Duke",
"gender":"M",
"phones":{
"home":"650-123-4567",
"mobile":"650-111-2222"}}
]
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |
Model View Controller (MVC)
• Component-based MVC
–コンポーネントフレームワークを活用するタイプ
– Controller はフレームワークが提供する
– JSF, Wicket, Tapestry…
• Action-based MVC
– Controllerはアプリケーションで定義される
– Struts 2, Spring MVC…
2つのタイプ
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MVC 1.0
• アクション・ベースのModel-View-Controller アーキテクチャの追加
•既存のJava EEテクノロジーを組み合わせて実現: – Model
• CDI, Bean Validation, JPA
– View • Facelets, JSP
– Controller • JAX-RS リソースメソッド
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JSP, Facelets CDI Bean
JAX-RS Resource Methods
Bean Validation
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MVC 1.0
@Path("hello")
public class HelloController {
@Inject
private Greeting greeting;
@GET
@Controller
public String hello() {
greeting.setMessage("Hello there!");
return "hello.jsp";
}
}
JAX-RS controller
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MVC 1.0
@Path("hello")
public class HelloController {
@Inject
private Greeting greeting;
@GET
@Controller
public String hello() {
greeting.setMessage("Hello there!");
return "hello.jsp";
}
}
JAX-RS controller Model
@Named
@RequestScoped
public class Greeting {
private String message;
public String getMessage() {
return message;
}
public void setMessage(message) {
this.message = message;
}
}
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MVC 1.0
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Hello</title>
</head>
<body>
<h1>${greeting.message}</h1>
</body>
</html>
View
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HTTP/2
• 一つのTCP接続を多重化
• リクエストは “Stream"と呼ばれるデータ単位で送受信
– 多重化
– Stream単位で重み付け
• バイナリフレームレイヤ
–Server Push
• ヘッダ圧縮
Multiplexed Binary Frames POST /upload HTTP/1.1 Host: www.test.com Content-Type: application/json Content-Length: 15 {“name”:“duke”}
HTTP 1.1 HTTP/2
HEADERS frame
DATA frame
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HTTP/2 サーバプッシュ
client server
.html
.js
.png
.css
• SSE/WebSocketとは用途が異なる
• 関連リソースをサーバプッシュ
• htmlの要求がきたら
• 関連のjs, png, css もプッシュする
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Servlet 4.0 HTTP/2 サーバプッシュのサンプル
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { PushBuilder builder = request.getPushBuilder(); builder.setPath(“/style.css”); builder.push(); res.setContentType(“text/html”); PrintWriter out = res.getPrintWriter(); out.println(“<html>”); out.println(“<head>”) out.println(“<link rel=¥”stylesheet¥” type=¥”text/css¥” href=¥“style.css¥”>”); … }
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開発をより容易に
• CDI 活用範囲の拡大
• Security インターセプタ
• JMS : Message-Driven Beanのメッセージ処理を簡素化
• JAX-RS injection の導入
• WebSocket スコープ
• Pruning - EJB 2.x client view, IIOPとの互換性
62
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CDI 2.0
• Modularity
• Java SE support
• Asynchronous Events
• Event ordering
• …
利用範囲の拡大と機能強化
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http://www.slideshare.net/dblevins1/2015-javaone-ejbcdi-alignment
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https://published-rs.lanyonevents.com/published/oracleus2015/sessionsFiles/2550/CON2391_Paumard-The%20Path%20to%20CDI%202.0.pdf
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Java EE仕様策定に貢献しませんか??
• Adopt a JSR
– http://glassfish.org/adoptajsr
• Join an Expert Group project
– http://javaee-spec.java.net
– https://java.net/projects/javaee-spec/pages/Specifications
• The Aquarium
– http://blogs.oracle.com/theaquarium
• Java EE 8 Reference Implementation
– http://glassfish.org
興味ある方は是非参画ください!!!
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JavaOne 2016に行こう!