Java EE 8 Adopt a JSR : JSON-P 1.1 & MVC 1.0

Java EE 8 Adopt a JSR : JSON-P 1.1 & MVC 1.0
@delabassee#JavaEE8 Adopt A JSR - Java EE 8 David Delabassee @delabassee Oracle
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Agenda • Java EE 8 • Adopt JSON-‐P 1.1 (JSR 374) • Adopt MVC 1.0 (JSR 371) 2
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Java EE 8 Themes • HTML5 / Web Tier Enhancements • Ease of Development • Infrastructure for running in the Cloud 3
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 HTML5 Support / Web Tier Enhancements • JSON Binding • JSON Processing enhancements • Server-‐sent Events • Action-‐based MVC • HTTP/2 support 5
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 HTML5 Support / Web Tier Enhancements • JSON Binding • JSON Processing enhancements • Server-‐sent Events • Action-‐based MVC • HTTP/2 support 6
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Ease of Development • CDI alignment • JAX-‐RS injection alignment • Simplified messaging through CDI-‐based “MDBs” • WebSocket scopes • Pruning of EJB 2.x client view and IIOP interoperability • Security interceptors • … 8
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Modernize the Infrastructure • Java EE Management 2.0 – REST-‐based APIs for Management and Deployment • Java EE Security 1.0 – Authorization – Password Aliasing – User Management – Role Mapping – Authentication – REST Authentication For On-‐Premise and for in the Cloud 10
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Java EE 8 JSRs • MVC 1.0 (JSR 371) * • CDI 2.0 (JSR 365) • JSON-‐P 1.1 (JSR 374) • JSF 2.3 (JSR 372) • Java EE Security 1.0 (JSR 375) • JSON Binding 1.0 (JSR 367) • JMS 2.1 (JSR 368) • Java Servlet 4.0 (JSR 369) • JAX-‐RS 2.1 (JSR 370) • Java EE Management 2.0 (JSR 373) • Java EE 8 Platform (JSR 366) So far….. 11
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 And More to Follow… • JCache • Bean Validation • JPA • Connector Architecture • WebSocket • Interceptors • EJB • JTA • Batch • Concurrency Utilities • JavaMail • … 12
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Roadmap • Tentative Delivery Schedule – Q3 2014: Expert Group formed – Q3 2015: Early Draft – Q4 2015: Public Review – Q2 2016: Proposed Final Draft – H1 2017: Final Release • Contribute! 13
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 How to Get Involved • Join an Expert Group – http://javaee-‐spec.java.net • Adopt a JSR – http://glassfish.org/adoptajsr • The Aquarium – http://blogs.oracle.com/theaquarium • Java EE Reference Implementation – http://glassfish.org 14
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 • Keep JSON-‐P spec up-‐to-‐date • Track new standards • Add editing operations to JsonObject and JsonArray • Java SE 8 • JSON Big Data 15 JSR 374
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 • String syntax for referencing a JSON value "/0/phone/mobile" JSON-‐Pointer – IETF RFC 6901 16
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 JsonArray contacts = … JsonPointer pointer = new JsonPointer("/0/name"); JsonValue value = pointer.getValue(contacts); [ { "name":"Duke", "gender":"M", "phones":{ "home":"650-‐123-‐4567", "mobile":"650-‐234-‐5678"}}, { "name":"Jane", "gender":"F", "phones":{ "mobile":"707-‐555-‐9999"}} ] 17
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 • String syntax for referencing a JSON value “/0/name" • Methods – getValue() – JSON operations: add(), replace(), remove() JSON-‐Pointer – IETF RFC 6901 18 JsonPointer pointer = new JsonPointer("/0/name"); JsonArray result = pointer.replace(contacts, Json.createValue("Alex"));
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 • Patch is a JSON document – Array of objects / operations for modifying a JSON document – add, replace, remove, move, copy, test JSON-‐Patch – IETF RFC 6902 19
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 [ { "op":"replace", "path":"/0/phones/mobile", "value":"650-‐111-‐2222"}, { "op":"remove", "path":"/1"} ] [ { "name":"Duke", "gender":"M", "phones":{ "home":"650-‐123-‐4567", "mobile":"650-‐234-‐5678"}}, { "name":"Jane", "gender":"F", "phones":{ "mobile":"707-‐555-‐9999"}} ] 20
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 [ { "op":"replace", "path":"/0/phones/mobile", "value":"650-‐111-‐2222"}, { "op":"remove", "path":"/1"} ] [ { "name":"Duke", "gender":"M", "phones":{ "home":"650-‐123-‐4567", "mobile":"650-‐111-‐2222"}}, { "name":"Jane", "gender":"F", "phones":{ "mobile":"707-‐555-‐9999"}} ] 21
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 [ { "op":"replace", "path":"/0/phones/mobile", "value":"650-‐111-‐2222"}, { "op":"remove", "path":"/1"} ] [ { "name":"Duke", "gender":"M", "phones":{ "home":"650-‐123-‐4567", "mobile":"650-‐111-‐2222"}} ] 22
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JsonArray target = …; JsonArray patch = …; JsonPatch jsonpatch = new JsonPatch(patch); JsonArray result = jsonpatch.apply(target); JSON-‐P 1.1 23 JsonPatchBuilder builder = new JsonPatchBuilder(); JsonArray result = builder.add("/Joe/phones/office", "1234-‐567") .remove("/Amy/age") .apply(contacts);
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 { "title": "Hello!", "phoneNumber": "+01-‐123-‐456-‐7890", "author": { "familyName": null }, "tags": [ "example" ] } 24 { "title": "Goodbye!", "author": { "givenName": "John", "familyName": "Doe" }, "tags": [ "example", "sample" ], "content": "This will be unchanged" } { "title": "Hello!", "author": { "givenName": "John" }, "tags": [ "example" ], "content": "This will be unchanged", "phoneNumber": "+01-‐123-‐456-‐7890" } JSON-‐Merge Patch – IETF RFC 7386
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 • Reverse operation – Given two objects returns the patch to apply (diff) JSON-‐Patch & JSON-‐Merge Patch Diff 25 JsonValue output = JsonMergePatch.diff(original, target); JsonArray diff = JsonPatch.diff(original, target);
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 JSON Query collecting results in JsonArray JsonArray cars = ...; JsonArray audis = cars.getValuesAs(JsonObject.class).stream() .filter(x-‐>"Audi".equals(x.getString("brand"))) .map(x-‐>(x.getString("serial")) .collect(JsonCollectors.toJsonArray()); 26
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 Getting Started 27 • JSR 374 - https://json-‐processing-‐spec.java.net • JIRA - https://java.net/jira/browse/JSON_PROCESSING_SPEC • Repos - git://java.net/json-‐processing-‐spec~git - git://java.net/jsonp~git
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSON-‐P 1.1 Getting Started 28 • Build the standalone RI - git://java.net/jsonp~git • Check JSR374 tests and the Javadocs - https://json-‐processing-‐spec.java.net/nonav/snapshots/1.1/javadocs/ • Follow the EG users list - JSON Big Data
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Model-‐View-‐Controller (MVC 1.0) Specification • “Action-‐based” MVC 1.0 JSR • Why? – UI landscape is not one size fits all – Java EE 8 Community Survey – Talking to our customers, etc. • EG – Oracle, RedHat, innoQ, IBM, Caelum, LifeRay, and 6 individuals members JSR 371 29
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 MVC 1.0 • Model – CDI, Bean Validation, JPA • View – Facelets, JSP, SPI? • Controller – Invent new technology Vs. Leverage existing technologies? 30 Glues together key Java EE technologies
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Controller • Combine data models and views to produce web application pages @Path("hello") public class HelloController { @GET @Controller public String hello() { return "hello.xhtml"; } } 31
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Controller • Class/method decorated with @Controller @Path(“hello") @Controller public class HelloController { @GET @View(“hello.ftl") public void hello() { } } 32
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Controller @Path(“hello") @Controller public class HelloController { @GET public Viewable hello() { return new Viewable("hello.jsp"); } } 33
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Controller … @GET @Controller public Response getById(@PathParam("id") String id) { if (id.length() == 0) { return Response.status(Response.Status.BAD_REQUEST) .entity(“error.xhtml") .build(); } } 34
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Model • “Refers to the data” • javax.mvc.Models interface • CDI @Named bean (recommended) 35
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Model @Named(“greeting”) @RequestScoped public class Greeting { private String message; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } } 36
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Model @Path(“hello”) public class HelloController { @Inject private Models models; @GET @Controller public String hello() { models.put(“greeting”, new Greeting(“Hi JPrime”)); return “hello.ftl”; } } 37
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. View • Define the structure of the output • Can refer to model(s) • Rendered by a View Engine – JSP – Facelets • Not accessible as static resources – /WEB-‐INF/views/ 38
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. View 39 <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC …> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html"> <h:head> <title>Facelet!</title> </h:head> <h:body> <p>${greeting.message} to all</p> </h:body> </html>
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. View <%@ page contentType=“text/html;charset=UTF-8” language=“java” %> <html> <head> <title>Hello</title> </head> <body> <p>${greeting.message}</p> </body> </html> 40
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. View Engine • CDI based extension mechanism • javax.mvc.engine.ViewEngine interface boolean supports(String view); void processView(ViewEngineContext context) throws ViewEngineException; • Ozark – JSP & Facelets – FreeMarker, Velocity, Thymeleaf, Mustache & Handlebars 41
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 JSR 371 • View Engine – JSP & Facelets – FreeMarker, Velocity, Thymeleaf, Mustache, Handlebars & Pebble • Validation • Exception Mapping Providers • Bootstrap via javax.ws.rs.core.Application • @Produces • CDI Events 42 Early Draft Review
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. MVC 1.0 • JSR 371 - http://mvc-‐spec.java.net/ - https://jcp.org/en/jsr/detail?id=371 - https://java.net/jira/browse/MVC_SPEC - https://java.net/projects/mvc-‐spec/lists/users/archive • Ozark - https://ozark.java.net - git://java.net/ozark~sources + https://github.com/spericas/ozark Getting Started 43
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. MVC 1.0 • Docker script - https://ozark.java.net/download.html • Samples - http://<container-‐ip>:8080/samples • GF console (admin/ozark) - http://<container-‐ip>:4848 Getting Started 44
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. MVC 1.0 • GlassFish 4.1 nightly - http://dlc-‐cdn.sun.com/glassfish/4.1/nightly/glassfish-‐4.1-‐ b14-‐06_12_2015.zip • Bundle Ozark with your App • Maven Central <groupId>javax.mvc</groupId> <artifactId>javax.mvc-‐api</artifactId> <version>1.0-‐edr1</version> Getting Started 45
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. MVC 1.0 • Full blown samples • Additional templating engine • Logging, monitoring, i.e. improving event mechanism in place • Internationalization/localization • … Getting Started 46
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. @delabassee#JavaEE8 Devoxx UK • JCP, Adopt-‐a-‐JSR & You -‐ Thursday at 12:50 (Room BC) • Java EE 8, a snapshot overview -‐ Thursday at 11:50 (Auditorium) • Java EE Game Changers -‐ Friday at 10:00 (Room A) • HTTP/2 comes to Java -‐ Friday at 11:10 12:00 (Auditorium) • CDI 2.0: what is in the work? -‐ Friday at 15:00 (Auditorium) • Finally, Security API JSR 375 -‐ Friday at 16:20 (Room DEF) 47
Copyright © 2015, Oracle and/or its affiliates. All rights reserved. Thanks! 48
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Copyright © 2015, Oracle and/or its affiliates. All rights reserved.

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