Java EE 6 and GlassFish v3: Paving the path for future
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The document discusses Java EE 6 and GlassFish V3, focusing on goals such as making the platform lighter and more extensible, improving ease of development, and supporting dynamic languages. Key features include the introduction of the 'web profile', optional technologies, and streamlined development processes using annotations. It also highlights GlassFish as an open-source application server with modular capabilities and REST interfaces for management and monitoring.
Java EE 6 and GlassFish v3: Paving the path for future
- 1. Java EE 6 and GlassFish v3: Paving the path for future Arun Gupta, GlassFish Guy Sun Microsystems, Inc. blog.arungupta.me
- 2. Java EE: Past & Present Right Sizing Ease of Development Java EE 6 EJB Lite Web Java EE 5 Restful WS Services Ease of Web Beans Development Extensibility J2EE 1.4 Annotations Robustness Web Services, EJB 3.0 Enterprise Management, Persistence API Java Platform J2EE 1.3 Deployment, New and CMP, Async. Updated Connector ` Connector Web Services Java EE 6 J2EE 1.2 Architecture Servlet, JSP, Web Profile JPE EJB, JMS Project RMI/IIOP Java EE 6 and GlassFish v3: Paving path for the future Slide 2
- 3. Compatible Java EE 5 Implementations Java EE 6 and GlassFish v3: Paving path for the future Slide 3
- 4. Goals for the Java EE 6 Platform • Right Sizing the Platform > Flexible, lighter weight • Extensible >Embrace Open Source Frameworks • Easier to use, develop on > Continue on path set by Java EE 5 Java EE 6 and GlassFish v3: Paving path for the future Slide 4
- 5. Right Sizing the Platform: Profiles • Make platform flexible > Decouple specifications to allow more combinations > Expands potential licensee ecosystem > Profiles >Targeted technology bundles >Defined through the JCP >First profile: Web Profile – Defined by the Java EE 6 Expert Group Java EE 6 and GlassFish v3: Paving path for the future Slide 5
- 6. Web Profile • Fully functional mid-sized profile > Actively discussed in Java EE Expert Group and outside it > Technologies > Servlet 3.0, EJB Lite 3.1, JPA 2.0, JSP 2.2, EL 1.2, JSTL 1.2, JSF 2.0, JTA 1.1, JSR-45, JSR-250 Java EE 6 and GlassFish v3: Paving path for the future Slide 6
- 7. Right Sizing the Platform: Pruning • Make platform lighter > Makes some technologies optional > Pruned today, means > optional in the next release > Deleted in the subsequent release > Pruned Technologies will be marked in the javadocs > Current pruning list > JAX-RPC, EJB 2.X Entity Beans, JAXR, JSR-88 Java EE 6 and GlassFish v3: Paving path for the future Slide 7
- 8. Extensibility • Embrace open source libraries and frameworks • Zero-configuration, drag-and-drop for web frameworks > Servlets, servlet filters, context listeners for a framework get discovered and registered automatically • Plugin library jars using web fragments Java EE 6 and GlassFish v3: Paving path for the future Slide 8
- 9. <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://blog.arungupta.me/2009/08/totd-91-applying-java-ee-6-web-fragment-xml-to-apache-wicket-deploy-on-glassfish-v3/ Java EE 6 and GlassFish v3: Paving path for the future Slide 9
- 10. <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://blog.arungupta.me/2009/09/totd-101-applying-servlet-3-0java-ee-6-"web-fragment-xml"-to-lift-–-deploy-on-glassfish-v3/ Java EE 6 and GlassFish v3: Paving path for the future Slide 10
- 11. Ease of Development • Continue advancements of Java EE 5 • Primary focus: Web Tier • Multiple Areas easier to use: EJB 3.1 • General principles > Annotation-based programming model > Reduce or eliminate need for deployment descriptors > Traditional API for advanced users Java EE 6 and GlassFish v3: Paving path for the future Slide 11
- 12. Web/EJB Application in Java EE 5 Platform foo.ear foo.ear lib/foo_common.jar foo_web.war com/acme/Foo.class WEB-INF/web.xml WEB-INF/classes/ com/acme/FooServlet.class foo_web.war WEB-INF/classes com/acme/Foo.class OR WEB-INF/web.xml WEB-INF/classes/ com/acme/FooServlet.class foo_ejb.jar com/acme/FooBean.class foo_ejb.jar com/acme/Foo.class com/acme/FooBean.class Java EE 6 and GlassFish v3: Paving path for the future Slide 12
- 13. Web/EJB Application in Java EE 6 Platform foo.war WEB-INF/classes/ com/acme/FooServlet.class WEB-INF/classes/ com/acme/FooBean.class web.xml Java EE 6 and GlassFish v3: Paving path for the future Slide 13
- 14. EoD Example - Servlets Servlet in Java EE 5: Create two source files <!--Deployment descriptor /* Code in Java Class */ web.xml --> <web-app> package com.foo; <servlet> public class MyServlet <servlet-name>MyServlet extends HttpServlet { </servlet-name> public void <servlet-class> doGet(HttpServletRequest com.foo.MyServlet </servlet-class> req,HttpServletResponse res) </servlet> { <servlet-mapping> <servlet-name>MyServlet ... </servlet-name> <url-pattern>/myApp/* } </url-pattern> </servlet-mapping> ... ... </web-app> } Java EE 6 and GlassFish v3: Paving path for the future Slide 14
- 15. EoD Example - Servlets Servlet in Java EE 6: In many cases a single source file package com.foo; @WebServlet(name=”MyServlet”, urlPattern=”/myApp/*”) public class MyServlet extends HttpServlet { public void doGet(HttpServletRequest req, HttpServletResponse res) { ... } Java EE 6 and GlassFish v3: Paving path for the future Slide 15
- 16. Java EE 6 Status • Public reviews completed • JSF 2.0 is final, majority of the specs are in Proposed Final Draft • Reference Implementation is GlassFish V3 • Final release later this year Java EE 6 and GlassFish v3: Paving path for the future Slide 16
- 17. 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 5 Reference Implementation > Full Commercial Support from Sun • Leverages Sun's experience in other Java, Middleware, SDK http://glassfish.org Java EE 6 and GlassFish v3: Paving path for the future Slide 17
- 18. Sun GlassFish Enterprise Server Enterprise Manager Customer Advocate eLearning Credit Customer Focused 24x7 Support Support Team GlassFish Sun VIP Open Source Application Server Patches & Interoperability Upgrades Support Java EE 6 and GlassFish v3: Paving path for the future Slide 18
- 19. GlassFish v3 • Modular > Maven 2 – Build & Module description > Felix – OSGi runtime > Allow any type of Container to be plugged – Start Container and Services on demand • Embeddable: runs in-VM • Extensible: pluggable containers > Rails, Grails, Django, ... • Java EE 6 Reference Implementation • Support for upcoming Java EE 6 profiles http://glassfish.org/v3 Java EE 6 and GlassFish v3: Paving path for the future Slide 19
- 20. Dynamic Languages & Frameworks http://glassfish-scripting.dev.java.net Java EE 6 and GlassFish v3: Paving path for the future Slide 20
- 21. Rails Deployment Choices Credits: http://birdwatchersdigest.com Java EE 6 and GlassFish v3: Paving path for the future Slide 21
- 22. Demo NetBeans and Java EE 6 http://blog.arungupta.me/2008/11/screencast-27-simple-web-application-using-netbeans-6-5-ide-and-glassfish-v3-prelude/ http://blog.arungupta.me/2008/11/screencast-26-developrundebug-rails-application-using-netbeans-ide-and-glassfish-v3-prelude/ http://blog.arungupta.me/2009/08/totd-93-getting-started-with-java-ee-6-using-netbeans-6-8-m1-glassfish-v3-a-simple-servlet-3-0-jpa-2-0-app/ http://blog.arungupta.me/2009/08/totd-94-a-simple-java-server-faces-2-0-jpa-2-0-application-getting-started-with-java-ee-6-using-netbeans-6-8-m1-glassfish-v3/ http://blog.arungupta.me/2009/08/totd-95-ejb-3-1-java-server-faces-2-0-jpa-2-0-web-application-getting-started-with-java-ee-6-using-netbeans-6-8-m1-glassfish-v3/ http://blog.arungupta.me/2008/11/screencast-28-simple-web-application-using-eclipse-and-glassfish-v3-prelude/ Java EE 6 and GlassFish v3: Paving path for the future Slide 22
- 23. Embeddable GlassFish public void testServlet() throws Exception { int port = 9999; GlassFish glassfish = newGlassFish(port); URL url = new URL("http://localhost:" + port + "/" + NAME + "/SimpleServlet"); BufferedReader br = new BufferedReader( new InputStreamReader( url.openConnection().getInputStream())); assertEquals("Wow, I'm embedded!", br.readLine()); glassfish.stop(); } Java EE 6 and GlassFish v3: Paving path for the future Slide 23
- 24. ... Embeddable GlassFish private GlassFish newGlassFish(int port) throws Exception { GlassFish glassfish = new GlassFish(port); ScatteredWar war = new ScatteredWar(NAME, new File("src/main/resources"), new File("src/main/resources/WEB-INF/web.xml"), Collections.singleton(new File("target/classes").toURI().toURL())); glassfish.deploy(war); System.out.println("Ready ..."); return glassfish; } http://blog.arungupta.me/2008/05/embeddable-glassfish-in-action-servlet-in-a-maven-project/ Java EE 6 and GlassFish v3: Paving path for the future Slide 24
- 25. Extending GlassFish ... 1, 2, 3. @Service(name="mycommand") @Scoped(PerLookup.class) public class CLIPluggabilityCommand implements AdminCommand { ... } ... // this value can be either runtime or os for our demo @Param(primary=true) String inParam; ... public void execute(AdminCommandContext context) { ... } http://java.net/blog/2008/11/07/extending-glassfish-v3-prelude-easy-1-2-3 Java EE 6 and GlassFish v3: Paving path for the future Slide 25
- 26. 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 Java EE 6 and GlassFish v3: Paving path for the future Slide 26
- 27. Demo GlassFish v3 Monitoring http://blog.arungupta.me/2009/09/totd-104-glassfish-v3-monitoring-how-to-monitor-a-rails-app-using-asadmin-javascript-jconsole-rest/ Java EE 6 and GlassFish v3: Paving path for the future Slide 27
- 28. 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 Java EE 6 and GlassFish v3: Paving path for the future Slide 28
- 29. Demo GlassFish v3 REST Interface http://blog.arungupta.me/2009/08/totd-96-glassfish-v3-rest-interface-to-monitoring-and-management-json-xml-and-html-representations/ Java EE 6 and GlassFish v3: Paving path for the future Slide 29
- 30. Java EE 6 and GlassFish v3: Paving the path for future Arun Gupta, GlassFish Guy Sun Microsystems, Inc. blog.arungupta.me