1. JBoss Application Server (AS) 7 Jason Shepherd Middleware Support Engineer, Red Hat November 17 th , 2011

2. Introducing JBoss AS 7

Application Server

Key features

Java Enterprise Edition (JEE) 6

EJB 3.1

3. Managed Beans 4. Context and Dependency Injection Integration Testing with Arquallian

demo

5. Community vs Enterprise Releases

JBoss AS 7.0.2 current

EE 6 Web Profile

JBoss AS 7.1

EE 6 Full Certification

EAP 6 due in early 2012 6. JBoss EAP 6 based on AS 7.1 7. Key features Lightweight Container

Fast startup, < 3 sec

Lazy loading of services

Simplified Classloading

Deploys isolated from container

User focused configuration

A single configuration file

Manage multiple instances at once

Domain mode

Smaller memory footprint

Cloud readiness

8. Fast Startup

Services are started on demand

CDI beans.xml triggers CDI service (Weld)

No need to Slim unused features 9. Simplified Classloading

Java EE service dependencies only

/WEB-INF/beans.xml exposes org.jboss.weld.core

10. Greeter cannot access org.slf4jcom.redhat.greeter org.slf4j org.jboss.weld.core 11. Benefits of Java EE?

Standard platform comprised of managed components & services

Write business logic as components

• Less code

12. Higher signal-to-noise ratio

13. Powerful mechanisms for free 14. Portable knowledge 15. Drawbacks of Java EE 5

@Local and @Remote interfaces

16. Non Embeddable EJB container 17. Complex packaging 18. Verbose XML configuration 19. Boilerplate JNDI lookups 20. EJB 3.1 to the rescue!

No more @Local and @Remote

21. Embeddable EJB container 22. EJBs in WAR 23. Annotation based configuration 24. EJB in light weight Web Profile 25. EE 6 Web profile Key components

• Managed Beans (JSR-330)

• • Google and SpringSource submitted JSR-330 with the aim of standardising "a proven, non-controversial set of annotations that make injectable classes portable across frameworks"

• Context and Dependency Injection (CDI)

• Implemented with WELD on AS 7

EJB 3.1

No Local and Remote Interfaces

26. EJBs in WAR archives! 27. What are managed beans?

Everyone throwing around this termbean

JSF

28. EJB 29. Seam 30. Spring 31. Guice 32. CDI Need aunified bean definition 33. Managed bean specification

Common bean definition

34. Instances managed by the container 35. Common services

Lifecycle callbacks

36. Resource injections 37. Interceptors Foundation spec How managed beans evolved: http://www.infoq.com/news/2009/11/weld10 JSF EJB CDI JAX-RS Managed Beans 38. Resource Injection Revisited in JEE 6

Weakest aspect of JEE 5

39. Closed set of injectable resources

@EJB

40. @PersistenceContext ,@PersistenceUnit 41. @Resource(e.g., DataSource, UserTransaction) Name-based injection is fragile

Not refactor friendly

42. Requires special tooling to validate 43. Context and Dependency Injection (CDI) Web tier (JSF) Transactional tier (EJB) 44. What CDI provides

Servicesfor Java EE components

Lifecycle management of stateful beans bound to well-definedc ontexts(including conversation context)

45. Automatic transaction management for web apps! 46. A type-safe approach tod ependencyi njection 47. Based on Seam 2 48. Other features 49. http://tinyurl.com/weld-reference-101 50. Injection 101 ... public classManagedGreeter { @InjectGreeterg ; Stringmessage= null; public voidsetMessage(Stringm ) { this . message=g .greet( m ); } public StringgetMessage(){ returnmessage ; } } 51. Welcome to CDI, EJB 3.1 session beans! @Statelesspublic classGreeter { publicString greet(String name) { return "Hello "+ name +"!" ; }} 52. Welcome to CDI, JSF!

Use the bean directly in the JSF view

53. From JEE 5 to JEE6 CDI JSF managed beans Facelets JSP 54. Stashing the bean in a context @RequestScoped public classManagedGreeter { @InjectGreeterg ; Stringmessage= null; public voidsetMessage(Stringm ) { this . message=g .greet( m ); } public StringgetMessage(){ returnmessage ; } } 55. Scope types and contexts

Absence of sc ope -@Dependent

Bound to lifecycle of bean holding reference

Servlet scopes

@ApplicationScoped

56. @RequestScoped 57. @SessionScoped JSF conversation scope -@ConversationScoped 58. Custom scopes

Define scope type annot ation (e.g.,@FlashScoped )

59. Implement the context API in an extension 60. Conversation context

RequestConversationSession

Boundaries demarcated by application

Optimistic transaction

Conversation-scoped persistence context

61. No fear of exceptions on lazy fetch operations 62. Controlling the conversation @ConversationScoped public classBookingAgent { @Inject @BookingDatabaseEntityManagerem ; @Inject Conversation conversation ; privateHotelselected ; privateBookingbooking ; public voidselect(Hotel h) { selected=em .find(Hotel. class , h.getId()); conversation.begin() ; } ... 63. Controlling the conversation ... public booleanconfirm() { if(!isValid()) { return false ; } em .persist( booking ); conversation.end() ; return true ; } } 64. Container-oriented testing for Java EE

ShrinkWrap

Fluent API for creating Java archives

JavaArchive archive = ShrinkWrap. create ( "archive.jar" , JavaArchive. class ) .addClasses(MyClass. class , MyOtherClass. class ) .addResource( "mystuff.properties" );

Arquillian

Integration test harness

65. Pluggable container support (embedded or remote) 66. Supports injection into test class 67. Tests can be run from IDE or build script 68. Arquillian Maven integration < dependency > < groupId > org.jboss.arquillian.junit groupId > < artifactId > arquillian - junit -container artifactId > < version > ${arquillian.version} version > < scope > test scope > dependency > 69. Arquillian Remote vs. Embedded

Remote

Run on a remote server (localhost or other)

70. No startup/shutdown 71. Deployed to running container Managed

Runs within the JVM

72. Startup/Shutdown managed by test harness 73. How do I get started?

DownloadJBoss AS 7 and Quickstarts

http://jboss.org/jbossas

Generatea project using Eclipse & JBoss Tools

https://www.jboss.org/tools/

Viewthe JBoss Quickstart documentation

https://docs.jboss.org/author/display/

Readthe Weld reference guide

http://tinyurl.com/weld-reference-101

Browsethe CDI JavaDoc

http://docs.jboss.org/cdi/api/latest/

74. What is Openshift?

Express

Free shared-hosting

75. Java, Perl, PHP, Python, and Ruby Flex

Platform-as-a-Service

Auto-scaling

76. Performance monitoring 77. Application Management Java and PHP 78. Openshift Express

Register with an email only

79. Install the RHC command line tools 80. Create a domain

app-domain.redhat.com

Create an application

rhc-create-app

Copy app into git managed directory 81. Git push 82. Try JBoss AS 7 today!

Lighting fast performance

83. Java EE 6 compliant 84. Test in the container using Arquallian 85. Deploy instantly to Openshift