Java EE 6 & GlassFish v3 at Vancouver JUG, Jan 26, 2010

1. Java EE 6 &
GlassFish v3
Paving the path for future
Arun Gupta, GlassFish Guy
blogs.sun.com/arungupta, @arungupta

2. Are you tweeting ?
#glassfish
#vanjug

3. Java EE: Past & Present Flexible
Ease of
Development Java EE 6
Pruning
Java EE 5 Extensibility
Web Ease of Profiles
Services Development Ease-of-dev
Annotations
EJB Lite
J2EE 1.4 EJB 3.0
RESTful WS
Web Services, Persistence API
Robustness Management, New and CDI
Enterprise Deployment, Updated
Java J2EE 1.3 Async. Web Services
Platform CMP, Connector
Connector
Architecture ` Java EE 6
J2EE 1.2
Servlet, JSP, Web Profile
EJB, JMS
JPE RMI/IIOP
Project

4. Compatible Java EE 5 Implementations

5. Compatible Java EE 6 Implementations
Today:
Coming:

6. Goals for the Java EE 6 Platform
• Flexible & Light-weight
• Extensible
– Embrace Open Source Frameworks
• Easier to use, develop on
– Continue on path set by Java EE 5

7. Java EE 6 is Flexible
• Decouple specifications to allow more combinations
• Expands potential licensee ecosystem
• Profiles
> Targeted bundle of technologies
> Defined through the JCP
> Web Profile Defined
– Defined by the Java EE 6 Expert Group

8. 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

9. Java EE 6 is Lightweight
• Pruning
> Make some technologies optional
• Pruned today, means
> Optional in the next release
> Deleted in the subsequent releases
• Pruned technologies will be marked in Javadocs
• Technologies
> JAX-RPC, EJB 2.x Entity Beans, JAXR, JSR 88

10. Java EE 6 is Extensible
• Embrace open source frameworks
> Wicket, Lift, Spring, Struts, ...
• Zero-configuration, drag-and-drop for web
frameworks
> Servlets, servlet filters, context listeners for a framework
get discovered and registered automatically
• Plugin libraries using web fragments

11. <web-fragment>
<filter>
<filter-name>wicket.helloworld</filter-name>
<filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>...</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>wicket.helloworld</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-fragment>
http://blogs.sun.com/arungupta/entry/totd_91_applying_java_ee

12. <web-fragment>
<filter>
<filter-name>LiftFilter</filter-name>
<display-name>Lift Filter</display-name>
<description>The Filter that intercepts lift calls</description>
<filter-class>net.liftweb.http.LiftFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LiftFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-fragment>
http://blogs.sun.com/arungupta/entry/totd_101_applying_servlet_3

13. Java EE 6 - Done
• Specifications approved by the JCP
• Reference Implementation is GlassFish v3
• TCK

14. Java EE 6 Specifications
• The Platform
• Java EE 6 Web Profile 1.0
• Managed Beans 1.0

15. Java EE 6 Specifications
New
• Context and Dependency Injection for Java EE (JSR 299)
• Bean Validation 1.0 (JSR 303)
• Java API for RESTful Web Services (JSR 311)
• Dependency Injection for Java (JSR 330)

16. Java EE 6 Specifications
Extreme Makeover
• Java Server Faces 2.0 (JSR 314)
• Java Servlets 3.0 (JSR 315)
• Java Persistence 2.0 (JSR 317)
• Enterprise Java Beans 3.1 & Interceptors 1.1 (JSR 318)
• Java EE Connector Architecture 1.6 (JSR 322)

17. Java EE 6 Specifications
Updates
• Java API for XML-based Web Services 2.2 (JSR 224)
• Java API for XML Binding 2.2 (JSR 222)
• Web Services Metadata MR3 (JSR 181)
• JSP 2.2/EL 2.2 (JSR 245)
• Web Services for Java EE 1.3 (JSR 109)
• Common Annotations 1.1 (JSR 250)
• Java Authorization Contract for Containers 1.3 (JSR 115)
• Java Authentication Service Provider Interface for
Containers 1.0 (JSR 196)

18. Java EE 6 Specifications
As is
JDBC 3.0 API
•
Java Naming and Directory Interface 1.2
•
Java Message Service 1.1
•
Java Transaction API 1.1
•
Java Transaction Service 1.0
•
JavaMail API Specification 1.4
•
JavaBeans Activation Framework 1.1
•
Java API for XML Processing 1.3
•
Java API for XML-based RPC 1.1
•
SOAP with Attachments API for Java 1.3
•
Java API for XML Registries 1.0
•
Java EE Management Specification 1.1 (JSR 77)
•
Java EE Deployment Specification 1.2 (JSR 88)
•
Java Management Extensions 1.2
•
Java Authentication and Authorization Service 1.0
•
Debugging Support for Other Languages (JSR 45)
•
Standard Tag Library for JSP 1.2 (JSR 52)
•
Streaming API for XML 1.0 (JSR 173)
•

19. Java EE 6 & Ease-of-development
• Continue advancements of Java EE 5
• Primary focus: Web Tier
• General principles
> Annotation-based programming model
> Reduce or eliminate need for DD
> Traditional API for advanced users

20. EoD: Servlets
Servlet in Java EE 5: Two Files
<!--Deployment descriptor /* Code in Java Class */
web.xml -->
<web-app> package com.sun;
<servlet> public class MyServlet extends
<servlet-name>MyServlet HttpServlet {
</servlet-name> public void
<servlet-class> doGet(HttpServletRequest
com.sun.MyServlet req,HttpServletResponse res)
</servlet-class>
</servlet> {
<servlet-mapping>
<servlet-name>MyServlet ...
</servlet-name>
<url-pattern>/myApp/* }
</url-pattern>
</servlet-mapping> ...
...
</web-app> }

21. EoD: Servlets in Java EE 6
package com.sun;
@WebServlet(name=”MyServlet”, urlPattern=”/myApp/*”)
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req,
HttpServletResponse res)
{
...
}
http://blogs.sun.com/arungupta/entry/totd_81_getting_started_with

22. Servlet 3.0
• Annotations to declare Servlets, Filters, Init param, ...
> “web.xml” is optional in most of the cases
• Pluggable frameworks using web fragments
• Async support
• Programmatic authentication and logout
• Default error page, File upload support
• Using new language features – for example Generics

23. EJB 3.1
• @Singleton beans – shared state per server VM
• No interface view – one source file per bean
• Calendar timers – cron like semantics
> @Schedule(dayOfWeek=”Mon,Wed”)
> (hour=”14”, dayOfMonth=”Last Thu”, month=”Nov”)
> (minute=”*/5”, hour=”*”)
• Application startup/shutdown callbacks
• EJB “Lite”
> Small subset of EJB 3.1 for use in Web profile

24. EoD: EJB Simplified Packaging
Java EE 5 Java EE 6
foo.war
foo.ear
WEB-INF/classes
foo_web.war com.sun.FooServlet
com.sun.TickTock
WEB-INF/web.xml com.sun.FooBean
WEB-INF/classes com.sun.FooHelper
com.sun.FooServlet
com.sun.TickTock
foo_ejb.jar
com.sun.FooBean
com.sun.FooHelper
web.xml ?
http://blogs.sun.com/arungupta/entry/totd_95_ejb_3_1

25. Java Server Faces 2.0
• Facelets as “templating language” for the page
> Custom components much easier to develop
• Ajax support integrated
• “faces-config.xml” not required in common cases
• Mojarra is the Reference Implementation of JSF 2

26. Java Persistence API 2.0
• Expanded object/relational mapping functionality
> @ElementCollection, @OrderColumn, ...
• Additions to the Java Persistence query language
> INDEX, CASE/WHEN/ELSE
• Metamodel API (javax.persistence.metamodel)

27. JPA 2.0
• Type-safe Criteria API
> CriteriaQuery – select, where
> QueryBuilder – expressions, predicates
• Standard caching configuration
> 2nd level caching
> @Cache on entities

28. Bean Validation (JSR 303)
• Tier-independent mechanism to define constraints
for data validation
> Represented by annotations
> javax.validation
• Integrated with JSF and JPA
> JSF: f:validateRequired, f:validateRegexp
> JPA: pre-persist, pre-update, and pre-remove
• @NotNull(message=”...”), @Max, @Min, @Size
• Fully Extensible
> @Email String recipient;

29. Contexts & Dependency Injection for
Java EE (JSR 299)
• Type-safe Dependency Injection
> Builds on @Inject API
• Context/scope management
• Works with multiple bean types
• Includes ELResolver

30. CDI Clients
• Injection Points
> Field, Method, Constructor
Which one ?
> 0 or more qualifiers (Qualifier)
> Type
@Inject @LoggedIn User user
Request What ?
Injection (Type)

31. CDI Basics
• Separate from @Resource but can co-exist
> @Resource for container managed DI
> @Inject for application managed DI
• Strong typing, loose coupling
> Clients only declare dependencies via injection
points
> Bean selection is done by CDI

32. CDI – Sample Client Code
Field and Method Injection
public class CheckoutHandler {
@Inject @LoggedIn User user;
@Inject PaymentProcessor processor;
@Inject void setShoppingCart(@Default Cart cart) {
…
}
}

33. CDI – Sample Client Code
Constructor Injection
public class CheckoutHandler {
@Inject
CheckoutHandler(@LoggedIn User user,
PaymentProcessor processor,
@Default Cart cart) {
...
}
}

34. CDI - Sample Client Code
Multiple Qualifiers and Qualifiers with Arguments
public class CheckoutHandler {
@Inject
CheckoutHandler(@LoggedIn User user,
@Reliable
@PayBy(CREDIT_CARD)
PaymentProcessor processor,
@Default Cart cart) {
...
}
}

35. CDI - Declaring Qualifiers
With a meta-annotation
• Write your own annotation types and annotate them with
@Qualifier
• For example:
@Qualifier
@Retention(RUNTIME)
@Target({FIELD,TYPE})
public @interface Red {}

36. CDI - How to configure ?
There is none!
• CDI discovers bean in all modules in which CDI is
enabled
• Beans are automatically selected for injection
• Possible to enable groups of bean selectively via a
descriptor

37. CDI - Scopes
• Beans can be declared in a scope
> Everywhere: @ApplicationScoped, @RequestScoped
> Web app: @SessionScoped
> JSF app: @ConversarionScoped
> Pseudo-scope (default): @Dependent
• The CDI runtime will make sure the right bean is
created at the right time
• Client do NOT have to be scope-aware

38. CDI - Named Beans
Built-in support for the Unified EL
• Beans give themselves a name with @Named(“cart”)
• Then refer to it from a JSF or JSP page using the EL:
<h:commandButton
value=”Checkout”
action=“#{cart.checkout}”/>

39. CDI - Events
Even more decoupling
• Annotation-based event model
• A bean @Observes an event
void onLogin(@Observes LoginEvent event) { … }
• Another bean fires an event using the Event.fire(T event)
method

40. CDI - Much more ...
• Producer methods and fields
• Bridging Java EE resources
• Alternatives
• Interceptors
• Decorators
• Sterotypes

41. IDE Support
• NetBeans 6.8
• Eclipse 3.4+
• IntelliJ 9.0

42. Java EE 6 Training & Certification
• Java EE6 Training Curriculum - Feb 2010
• Java EE6 Certifications available - Mar 2010
• Register your interest in the courses and certifications
and receive information about promotions
> https://dct.sun.com/dct/forms/reg_us_1611_480_0.jsp

43. What is GlassFish ?
• A community
> Users, Partners, Testers, Developers, ...
> Started in 2005 on java.net
• Application Server
> Enterprise Quality and Open Source (CDDL & GPL v2)
> Java EE Reference Implementation
> Full Commercial Support from Sun

44. Sun GlassFish Enterprise Server
Enterprise Manager
Customer
Advocate eLearning
Credit
Customer Focused 24x7 Support
Support Team
GlassFish
Sun VIP
Open Source
Interoperability Patches &
Application Server
Support Upgrades

45. GlassFish v3
• Modular:
> Maven 2 – Build & Module description
> Felix – OSGi runtime (216 bundles)
> Allow any type of Container to be plugged
– Start Container and Services on demand
• Embeddable: runs in-VM
• Extensible
> Rails, Grails, Django, ...

46. Dynamic Languages & Frameworks
http://glassfish-scripting.dev.java.net

47. Rails Deployment Choices
Credits: http://birdwatchersdigest.com

48. Demo
NetBeans / Eclipse & Java EE 6
http://blogs.sun.com/arungupta/entry/screencast_27_simple_web_application
http://blogs.sun.com/arungupta/entry/screencast_28_simple_web_application
http://blogs.sun.com/arungupta/entry/screencast_26_develop_run_debug/
http://blogs.sun.com/arungupta/entry/totd_93_getting_started_with/
http://blogs.sun.com/arungupta/entry/totd_94_a_simple_java
http://blogs.sun.com/arungupta/entry/totd_95_ejb_3_1
http://blogs.sun.com/arungupta/entry/totd_102_java_ee_6
http://blogs.sun.com/arungupta/entry/totd_99_creating_a_java
http://blog.arungupta.me/2008/11/screencast-28-simple-web-application-using-eclipse-and-glassfish-v3-prelude/

49. Embeddable GlassFish
Server.Builder builder = new Server.Builder("testBuilder");
// Get the builder for EmbeddedFileSystem
EmbeddedFileSystem.Builder efsb = new EmbeddedFileSystem.Builder();
EmbeddedFileSystem efs = efsb.build();
builder.embeddedFileSystem(efs);
// Start the embedded server (should take no more than a few of seconds)
server = builder.build();
// Add a WEB container (other containers: ejb, jps, all, ...)
ContainerBuilder containerBuilder = server.createConfig(ContainerBuilder.Type.web);
server.addContainer(containerBuilder);
containerBuilder.create(server);
server.createPort(port);

50. Embeddable GlassFish
// Setup machinery to deploy
deployer = server.getDeployer(); // type is EmbeddedDeployer
DeployCommandParameters deployParams = new DeployCommandParameters();
deployParams.name = "myApplication"; // needed for undeploy
deployParams.contextroot = context; // overrides whatever the WAR contains
// Creates default virtual server, web listener, does the deploy and
// returns the applicationName as a String (null means something went wrong)
// duration depends on application size and nature. Heavy lifting done here.
File archive = new File(archiveName);
applicationName = deployer.deploy(archive, deployParams);
return (applicationName == null) ? false : true;

51. CLI-based Administration
●
“asadmin” CLI utility
●
Administrative commands can be added with each container :
@Service(name=”myCommand”)
public class ChangeRandomCtr implements AdminCommand {
@Param
String s1;
@Param
String s2;
…}
● Available as :
asadmin myCommand –s1 foo –s2 bar

53. Demo
GlassFish v3 Administration

54. Light Weight & On-demand Monitoring
• Event-driven light-weight and non-intrusive monitoring
• Modules provide domain specific probes (monitoring
events)
> EJB, Web, Connector, JPA, Jersey, Orb, Ruby
• End-to-end monitoring on Solaris using DTrace
• 3rd party scripting clients
> JavaScript to begin with

55. Demo
GlassFish v3 Monitoring
http://blogs.sun.com/arungupta/entry/totd_104_glassfish_v3_monitoring

56. REST Interface
REST interface to management and monitoring data
●
●
Configuration data, Commands invocation (start/stop instance, deploy,
undeploy, ...), CRUD resources (JMS, JDBC, ...)
●
localhost:4848/management/domain
●
localhost:4848/monitoring/domain
●GET, POST, DELETE methods
●
XML, JSON, HTML reps

57. Demo
GlassFish v3 REST Interface
http://blogs.sun.com/arungupta/entry/totd_113_javafx_front_end
http://blogs.sun.com/arungupta/entry/totd_116_glassfish_v3_administration

58. GlassFish Partners

59. References
• glassfish.org
• sun.com/glassfish
• blogs.sun.com/theaquarium
• twitter.com/glassfish
• glassfish@sun.com

60. Java EE 6 &
GlassFish v3
Paving the path for future
Arun Gupta, GlassFish Guy
blogs.sun.com/arungupta, @arungupta
60