Java EE 6 & GlassFish v3: Paving the path for the future - Spark IT 2010
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Java EE 6 and GlassFish v3 aim to pave the path for the future by making Java EE more flexible, extensible, and easier to develop on. Key aspects include profiles, pruning technologies, embracing open source frameworks, and continued focus on reducing configuration and improving the programming model with annotations. GlassFish v3 is the open source reference implementation of Java EE 6 and includes new features like modularity, embeddability, and light-weight monitoring.
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Java EE 6 & GlassFish v3: Paving the path for the future - Spark IT 2010
- 1. Java EE 6 & GlassFish v3: Paving the path for the future <Insert Picture Here> Arun Gupta, Java EE & GlassFish Guy, Oracle Corp blogs.sun.com/arungupta, @arungupta
- 2. Are you tweeting ? #glassfish #sparkit
- 3. Java EE: Past & Present Flexible Ease of Development Java EE 6 Pruning Java EE 5 Extensibility Web Ease of Services Profiles Development Annotations Ease-of-dev J2EE 1.4 EJB 3.0 EJB Lite Web Services, Persistence API RESTful WS 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 Managed Bean 1.0 May 1998 Dec 1999 Sep 2001 Nov 2003 May 2006 Dec 2010 10 specs 13 specs 20 specs 23 specs 28 specs
- 4. Compatible Java EE 5 Impl http://java.sun.com/javaee/overview/compatibility-javaee5.jsp
- 5. Compatible Java EE 6 Impls 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 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
- 8. Java EE 6 is Lightweight • Pruning • Make some technologies optional • Pruned today, means • Optional in the next release • Deleted in the subsequent releases • Technologies marked in Javadocs • JAX-RPC, EJB 2.x Entity Beans, JAXR, JSR 88
- 9. 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
- 10. <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
- 11. <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
- 12. Java EE 6 - Done • Specifications approved by the JCP 10 • Reference Implementation is GlassFish v3 • TCK 20 ec D
- 13. Java EE 6 Specifications • The Platform • Java EE 6 Web Profile 1.0 • Managed Beans 1.0
- 14. 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)
- 15. 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)
- 16. 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)
- 17. 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)
- 18. 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
- 19. 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>
- 20. 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
- 21. 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 web.xml ? com.sun.FooHelper http://blogs.sun.com/arungupta/entry/totd_95_ejb_3_1
- 22. IDE Support for Java EE 6
- 23. Books on Java EE
- 25. What is GlassFish ? • A community • Users, Partners, Testers, Developers, ... • Started in 2005 on java.net • Application Server • Open Source (CDDL & GPL v2) • Java EE Reference Implementation
- 26. 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, ... • Administration, Monitoring, Logging, Deployment, ... http://blogs.sun.com/dochez/entry/glassfish_v3_extensions_part_5
- 27. GlassFish v3 & OSGi • No OSGi APIs are used in GlassFish • HK2 provides abstraction layer • All GlassFish modules are OSGi bundles • Felix is default, also runs on Knopflerfish & Equinox • Can run in an existing shell • 216 modules in v3 http://blogs.sun.com/arungupta/entry/totd_103_glassfish_v3_with http://blogs.sun.com/arungupta/entry/totd_118_managing_osgi_bundles
- 28. 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
- 29. Dynamic Languages & Frameworks http://glassfish-scripting.dev.java.net
- 30. 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
- 33. 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
- 34. Demo GlassFish v3 Monitoring http://blogs.sun.com/arungupta/entry/totd_104_glassfish_v3_monitoring
- 35. 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
- 36. 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
- 37. Boost your productivity Retain session across deployment asadmin redeploy –properties keepSessions=true helloworld.war
- 39. Oracle said ... “GlassFish joins WebLogic Server in the best Java EE application server offering in the industry” “GlassFish continues as the Java EE RI and as an open source project.” “Oracle plans to add GlassFish Enterprise Server to all WebLogic offerings.” “GlassFish also available as standalone offering.” http://blogs.sun.com/arungupta/entry/glassfish_strategy_by_oracle_sun
- 40. References • glassfish.org • blogs.sun.com/theaquarium • twitter.com/glassfish • [email protected]
- 41. Java EE 6 & GlassFish v3: Paving the path for the future <Insert Picture Here> Arun Gupta, Java EE & GlassFish Guy, Oracle Corp blogs.sun.com/arungupta, @arungupta