Powering the Next Generation Services with JavaTM Platform

Arun Gupta, GlassFish GuyOracle Corpblogs.sun.com/arungupta, @arungupta

#sparkitIndian Top-10trends ontwitter

'95 '96 '97 '98 '99 '00 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10

Java released onwicked.neato.org

JDK 1.0

JDK 1.1

J2SE 1.2

JDK 1.3(Hotspot)

JDK 1.4(NIO)

J2SE 1.5(Generics, Annotation)

JDK 1.6(Rhino, JAX-WS)

J2SE 1.7(Modularity,Dyn Langs,

Coin)

'11

JSP /Servlets

J2EE 1.2

J2EE 1.3(Connectors)

J2EE 1.4(Web Services)

Java EE 5(Ease-of-use)

Java EE 6Jini

JavaCard2.0

JavaFX 1.0

Evolution of Java

The Java Eco-System

Digital TVs &Set-Top Boxes

> 2.6 BillionJava Powered

Phones

> 6 BillionJava CardsDeployed

Blu-ray DiscDevices

Multi-FunctionPrinters

850+ KGlassFishDownloadsPer month

850+ MPCs with

Java

$2.8BIn Java

App Servers$3BJava Mobile

Game Market

6.5+ MJava Dev.world wide

> 40.0 Million

250+ MJavaFXruntime

Standards-based

Role specialization: Communication, Enterprise, BPM, Web 2.0, ..

Converged Applications

Credits: http://scrapetv.com/News/News%20Pages/Business/images-2/one-billion-dollars.jpg

Robust

http://langpop.com/

12

ServiceComposition

• Enterprise Service Bus• Service engines: BPEL, Intelligent Event Processing,

XSLT, Data Mashup, Encoding, etc• Wide range of adapters: communications, databases,

EIS, etc.• Very easy to use through Netbeans IDE

SOAP Web Services

• High-performance, extensible, easy-to-use Web services stack

• Secure, Reliable and Transactions Web services• Interoperable with .NET• Transport agnostic• Very easy to use through IDEs support• https://metro.dev.java.net/

RESTful Web Services

• Annotation-driven API to build RESTful Web services> Resources / Methods / Representations

• Rapid creation of RESTful WS from JPA entity classes and patterns

• Generation of JavaScript client stubs• Test client generation for testing RESTful web services• Very easy to use through IDEs support• Jersey, RESTEasy, Restlet, CXF, ...

• Standard (JSR 116, 289) for developing and deploying communications applications

• Adds SIP servlet support on top of Java EE / GlassFish• Allows Converged Java EE, SIP applications• Test client generation for testing SIP services.• Very easy to use through IDEs support• https://sailfin.dev.java.net/

SIP Applications

Java EE is a monolithOne size fits all

Java EE 6 Web Profile 1.0

●Fully functional mid-sized profile● Actively discussed in the Java EE 6 Expert Group and

outside it● Technologies

● Servlets 3.0, JSP 2.2, EL 2.2, Debugging Support for Other Languages 1.0, JSTL 1.2, JSF 2.0, Common Annotations 1.1, EJB 3.1 Lite, JTA 1.1, JPA 2.0, Bean Validation 1.0, Managed Beans 1.0, Interceptors 1.1, Context & Dependency Injection 1.0, Dependency Injection for Java 1.0

Extensible

Java EE 6 Ease-of-use

• More annotations• More POJOs• Less XML

> Optional “web.xml”, “faces-config.xml”

• Simplified packaging

Ajax

• Java Server Faces 2.0> Integrated Ajax support> Facelets as templating language

Reverse Ajax / Comet

• Comet> Techniques that enable a server to push data to client browsers

through an HTTP open line of communication• Atmosphere: POJO-based portable framework

JVM

Co-hosting Java EE & Dynamic Langs

• GlassFish runs dynamic language applications along side Java EE apps with security, scalability, Java language and APIs benefits.

Pluggable Web Framework

JVM

V3 Kernel

Django ...

Jython Container

Grizzly

WSGI

JSF

Web Container

Servlet Spec

Grails ...

GlassFish v3 Modules

Web Framework Interface

GlassFish v3 Modules Java Framework

Ruby Framework

Python Framework

JRuby Container

Rack

Rails Merb ...

Key

JavaFX Vision

JavaFX is the platform for creating and delivering Rich Internet Applications

across all the screens of your life

JavaFX is Powered by Java

Java FX

• http://javafx.com/• Declarative Scripting Language

> Syntax Java-like with shades of JavaScript> For content designers and media engineers

• Facilitates rapid GUI development• Runs on the Java Virtual Machine• Richness of Java development

JavaFX Authoring Tool

Space is big. Really big. You just won’t believe how vastly, hugely, mind bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist, but that’s just peanuts to space.

— Douglas Adams, The Hitchhiker’s Guide to the Galaxy

Project Jigsaw

JDK 7 #1: Modularity

• Address the “jar hell”• Enables scale down• Improve performance

> Download & Startup Time• Dependencies can now be more clearly defined

Logging NIO

JMXJavaBeans

JNDI

RMI

CORBA

AWT, ...

Applet

JDBC

Declaring that a class belongs to a module

module M;package P;

public class Foo { ... }

Defining a module in module-info.java file

module M @1.0 { requires N @2.1; requires L @0.5;}

JDK 7 #2: Multi-Lingual VM

• InvokeDynamic / JSR 292• New bytecode for Dynamic languages• 2-3x more efficient code generation

JDK 7 - Other Key Features

• G1 GC: Lower pause times & better predictability• Project Lambda (aka Closures)• NIO.2: File system & Asynchronous APIs

> Directory search, Symbolic Links, Listen to changes in file system

• Some change ...

Credits: http://www.flickr.com/photos/joeshlabotnik/2143212474/

JDK 7 #3: Project Coin

Collection of Literals

final List<Integer> piDigits = Collections.unmodifiableList(Arrays.asList( 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 9 ));

final List<Integer> piDigits = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 9];

final Set<Integer> primes = { 2, 7, 31, 127, 8191, 131071, 524287 };

String in “switch” statements

String s = ...switch(s) { case "foo": processFoo(s); break;}

String in “switch” statements

String s = ...switch(s) { case "quux": processQuux(s); // fall-through

case "foo": case "bar": processFooOrBar(s); break;

case "baz": processBaz(s); // fall-through

default: processDefault(s); break;}

Automatic Resource Management

static String readFirstLineFromFile(String path) throws IOException { BufferedReader br = new BufferedReader(new FileReader(path)); try { return br.readLine(); } finally { br.close(); } }

static String readFirstLineFromFile2(String path) throws IOException { try (BufferedReader br = new BufferedReader(new FileReader(path)) { return br.readLine(); } }

Improved Type Inference forGeneric Instance CreationMap<String, List<String>> anagrams = new HashMap<String, List<String>>();

Map<String, List<String>> anagrams = new HashMap<>();

NetBeans 6.9

• Visual JavaFX GUI Editing• JDK 7• Spring 3• Zend and CakePHP• Improved productivity with Java EE 6• . . .

http://wiki.netbeans.org/NetBeans_69

Development

• Team collaboration> Presence> Chat> Continuous integration> Issue Tracking> Team Member Status Resources

• Cloud Plug-In• Web on Web• . . .

Powering the Next Generation Services with JavaTM Platform

Arun Gupta, GlassFish GuyOracle Corpblogs.sun.com/arungupta, @arungupta

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