Java EE 6 & GlassFish V3 - Alexis Moussine-Pouchkine - May 2010

GlassFish v3
The future of Java EE is here

Alexis Moussine-Pouchkine
GlassFish Team

This is no science fiction

Java EE 6 and GlassFish v3 shipped
th
final releases on December 10 2009

Some History and Context
Tomcat
Jasper
Catalina
JSTL
Struts
Crimson
XSLTC
Xalan
Xerces
JAXB
JAX-RPC
JSF

GlassFish v3
(Java EE 6)

GlassFish v1
(Java EE 5)
GlassFish
Launch

June
2005

v2

May
2006

Sept.
2007

v2.1

v2.1.1

Jan
2008

(you are here)

Dec.
2009

GlassFish
●

A Community
●
●
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Users, Partners, Testers, Developers
Started in 2005 on java.net
Sub-projects
–

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Jersey (JAX-RS), Metro (JAX-WS), Grizzly (nio),
Atmosphere (Comet), OpenMQ (JMS), and scripting

Application Server
●
●
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Enterprise Quality and Open Source
Java EE 5 / 6 Reference Implementation
Full Commercial Support from Oracle

GlassFish going forward
●

No change to operation of open source project
●
●
●
●

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GlassFish 3.0.1
●

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GlassFish Open Source Edition under existing license
Remains transparent and participatory
Strengthened by Oracle leadership
Customer and community driven product roadmap
Additional platforms, jrockit, ...

Feature releases
●
●
●

GlassFish v3.1 in 2010, v3.2 in 2011, v4 in 2012
Clustering, centralized admin, Coherence, virtualization
Details at http://glassfish.org/roadmap

Demo

Painless development with
GlassFish v3

Painless Java EE development !
●
●

Incremental compile of all Java EE artifacts
Auto-deploy of all Java EE and static artifacts

Session Retention
●

Deployment option to maintain stateful
sessions across re-deployments

$ asadmin redeploy --properties
keepSessions=true myapp.war
●

●

Greatly simplifies the
development paradigm
Integrated in IDEs

Modular and Dynamic
●

Modular : Apache Felix (OSGi)

●

Extensible : HK2

●

Yet very Fast !

Java EE 6 & GlassFish V3 - Alexis Moussine-Pouchkine - May 2010

Java EE, a brief History
Ease of
development
(web)
Ease of
development
Java EE 5

Web Services

Enterprise
Application

Robust
Scalable

J2EE 1.4

J2EE 1.3

J2EE 1.2

Project JPE
May 1998

Servlet
JSP
EJB
JMS
RMI/IIOP

Dec 1999
10 specs

CMP
JCA

Sept 2001
13 specs

WS
Management
Deployment

Nov 2003
20 specs

Annotations
EJB 3
JPA 1.0
WS-*
JSF

May 2006
23 specs

Java EE 6
EJB 3.1
JPA 2.0
Servlet 3.0
JSF 2.0
JAX-RS 1.1
CDI 1.0
@Inject
Bean Validat°

Web Profile
Managed
Bean

Q4 2009
28 specs

Java EE 6 – What's New?
●
●
●
●
●

Several new APIs
Web Profile
Extensibility & Pluggability
Dependency Injection
Improvement to many APIs

New and improved specifications
●
●
●
●
●
●
●

EJB 3.1
JPA 2.0
Servlet 3.0
JSF 2.0
JAX-RS 1.1
Connectors 1.6
Bean Validation 1.0

●
●
●
●
●
●
●
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DI 1.0
CDI 1.0
Managed Beans 1.0
Interceptors 1.1
JAX-WS 2.2
JSR-109 1.3
JSP 2.2 / EL 2.2
JSR-250 1.1

JAX-RS
●

RESTful web services API

●

Already widely adopted

●

Really a general, high-level HTTP API

●

Annotation-based programming model

●

Programmatic API when needed

●

JAX-RS 1.1 integration with EJBs

JAX-RS sample code
@Path("widgets/{id}")
@Produces("application/widgets+xml")
public class WidgetResource {
public WidgetResource(
@PathParam("id") String id) {
...
}
@GET
Widget getWidget() {
...
}
}

Bean Validation 1.0
public class Address {
@NotNull @Size(max=30,
message="longer than {max} characters")
private String street1;
...
@NotNull @Valid
private Country country;
}
public class Country {
@NotNull @Size(max=20)
private String name;
...
}

request recursive
object graph
validation

Build your own!
@Size(min=5, max=5)
@ConstraintValidator(ZipcodeValidator.class)
@Documented
@Target({ANNOTATION_TYPE, METHOD, FIELD})
@Retention(RUNTIME)
public @interface ZipCode {
String message() default "Wrong zipcode";
String[] groups() default {};
}

Integrated in JPA and JSF
Bootstrap APIs

Java EE 6 Web Profile
●
●
●
●
●
●
●

Servlet 3.0
JSP 2.2 / EL 2.2
JSR-45 1.0
JSTL 1.2
JSF 2.0
Bean Validation 1.0
EJB 3.1 Lite

●
●
●
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JPA 2.0
JTA 1.1
DI 1.0
CDI 1.0
Managed Beans 1.0
Interceptors 1.1
JSR-250 1.1

Modular Web Applications
●
●
●
●
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Libraries can contain web-fragment.xml
web.xml is optional
@WebServlet, @WebFilter annotations
ServletContainerInitializer interface
Programmatic registration
Resource jars

JSF 2.0
●

Standardized facelets

●

Auto-discovery of component libraries

●

Composite components

●

Ajax support with partial views

●

Even a JavaScript API !

EJB 3.1
●

@Singleton beans

●

@Startup beans

●

@Asynchronous invocations

●

@Schedule tasks

●

EJBContainer API works on Java SE

●

Define EJBs directly inside a web app

Packaging in a war
foo.ear
lib/foo_common.jar
com/acme/Foo.class

foo_web.war
WEB-INF/web.xml
WEB-INF/classes
com/acme/FooServlet.class

foo_ejb.jar
com/acme/FooEJB.class
com/acme/FooEJBLocal.class

foo.war
WEB-INF/classes
com/acme/Foo.class
com/acme/FooServlet.class
com/acme/FooEJB.class

JPA 2.0
●

●

Support for collections of basic types and
embeddable objects
JPQL enhancements
e.g. CASE WHEN, NULLIF
Pessimistic locking
●

●
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Criteria API for dynamic query construction

Dependency Injection
●

JSR-299 + JSR-330

●

Added @Inject support
@Inject @LoggedIn User user;

●

Beans discovered at startup

●

Injection metamodel (BeanManager API)

●

@Resource still around
@Resource DataSource myDB;

Dependency Injection Sample
public class CheckoutHandler {
@Inject
CheckoutHandler(@LoggedIn User user,
@Reliable @PayBy(CREDIT_CARD)
PaymentProcessor processor,
@Default Cart cart) {
...
}
}

Demo

Painless (Java EE 6) development

Yes, Eclipse too !

GlassFish Tools Bundle for Eclipse : http://download.java.net/glassfish/eclipse/

More Painless Development
●

●

Fast auto-deploy of all Java EE and static
artifacts
Application runner
●

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java -jar glassfish.jar toto.war

Integration with maven 2
●

mvn gf:run, gf:start, gf:deploy, ...

●

Containers can be added/removed dynamically

●

Excellent Tools integration

How hard should it be to test
EJBs?

EJBContainer c = EJBContainer.createEJBContainer();
Context ic = c.getContext();
SimpleEjb ejb = (SimpleEjb)
ic.lookup("java:global/sample/SimpleEjb");
ejb.sayHello();

EJBs?
New in EJB 3.1
ejb.sayHello();

Portable JNDI name

EJBs?
@Test public void test() {
ejb.sayHello();
}

Demo

GlassFish Embedded
org.glassfish.api.embedded.Server server;
Server.Builder builder = new Server.Builder();
server = builder.build();

GlassFish Embedded
ContainerBuilder b =
server.createConfig(ContainerBuilder.Type.web);
server.addContainer(b);

GlassFish Embedded
File archive = new File("hello.war");
server.getDeployer().deploy(archive);

Same bits, different entry point
All in one JAR available

GlassFish Embedded
@BeforeClass public static void initContainer() {
File archive = new File("hello.war");
}

@Test public static void pingApplication() {
...
}

GlassFish Embedded
public static void main(String[] args) {
File archive = new File("realApplication.war");
}

Ship app server inside the application

What's the deal with OSGi?
●

GlassFish runs on top of OSGi (Felix by default)
●
●
●
●
●

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Also runs unmodified on Equinox (and Knopflerfish)
GlassFish ships with 200+ bundles
Can run without OSGi (Static mode)
Can use OSGi management tools (CLI or Web)
Can be installed on top of existing OSGi runtime

Any OSGi bundle will run in GlassFish v3
●
●
●

Drop it in glassfish/modules{/autostart}
Can also asadmin deploy it using --type osgi
GlassFish OSGi admin console

Extending GlassFish v3
OSGi-style – an example, a demo and a picture
●

●

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OSGi declarative service
Service-Component
entry in the JAR Manifest
Invoke the service from a
servlet using standard
@Resource injection
Never use a GlassFish
API !
No need to chose
between OSGi and
Java EE

Step by step: http://blogs.sun.com/dochez/entry/glassfish_v3_extensions_part_4

Demo

OSGi-style

SpringDM – another example, demo and picture
●

●

●

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Extend GlassFish with
an unmodified Spring dm
container
Simple Spring bean
implementing the service
Invoke the service from a
servlet using standard
@Resource injection
Still no use of a
GlassFish API
Single runtime for both
Spring and full Java EE

Step by step: http://blogs.sun.com/dochez/entry/glassfish_v3_extensions_part_4

OSGi + Java EE = Hybrid Apps
●

GlassFish as the modular runtime
●
●

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Assembled spontaneously
Admin tools (Web & CLI)

Implementation of Java EE related OSGi
services & standards
Support for Java EE 6 platform
●

●

e.g. JPA or EJB as OSGi services

Web Application Bundle (WAB)
●

WAR + OSGi metadata + Web-ContextPath header

GlassFish à la carte
●

Unzip 5-MB bootstrap
●

Install core IPS packages

●

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Define the repository to use

●

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Install individual packages
●
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Start with core glassfish-nucleus package
Drags dependencies of course

●

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Install umbrella package (a distro really)
●

Enough to run a JAX-RS/EJB31 demo

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Create GlassFish server instance
Deploy application

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Create GlassFish server instance
Deploy application
Run!

Monitoring and Management
Beyond web console and asadmin
●

Dynamic and non-intrusive monitoring of events
from any GlassFish runtime classes
●

BTrace integration new!
–
–

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Probe Providers defined in java or XML new!
–

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Portable, dynamic and safe tracing tool for Java
Btrace annotations and API to write scripts
Default providers & roll out your own

RESTful interface new!
DTrace for end-to-end new!

Still exposed via JMX
●

jconsole and visualvm as natural clients

RESTful admin
●

JAX-RS/Jersey + Grizzly to provide REST
interfaces to :
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Available from :
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http://localhost:4848/management/domain
http://localhost:4848/monitoring/domain

Use REST clients as Admin GUI substitute
●

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Configure runtime (via GET, POST, DELETE)
Invoke commands (restart, stop, deploy, etc..)
Monitoring (GET only)

Use you favorite glue/scripting language or tool

Data offered as either XML, HTML or JSON
Extensible

A lot more ...
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Management and Monitoring
●

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Dynamic languages
●

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mod_jk
WebDAV, CGI, SSI

Web Services Metro
●

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Rails, Grails, Django, Scala/Lift...

Comet, Atmosphere
Full support for
●

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Dynamic, Btrace, ...

.Net 3.5 interop

OpenMQ

E

te
x

s
n

le
ib

GlassFish v3 – Practical
●

Get it from http://glassfish.org
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Choice !
●
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GlassFish v3 now final !
Also from http://www.oracle.com/goto/glassfish

Eclipse or NetBeans (or vi...)
Felix or Equinox

Graphical Installer, Zip version
Download size starting at 30MB
●

Can move from Web profile to full (and vice-versa)

Questions

alexis.mp@sun.com
http://blogs.sun.com/alexismp
twitter: alexismp

Java EE 6 & GlassFish V3 - Alexis Moussine-Pouchkine - May 2010

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