Presentation Title Up to Three Lines Long Arial 28pt Name, 26pt Speaker Company, 18pt Misc. Info, 16pt Speaker logo centered below photo

2 Agenda > Introduction > Dynamic Languages and the Java Virtual Machine > GlassFish: A Multi-Language app server > JavaEE and Dynamic Languages > Advance Features > Q&A

3 GlassFish v3 A multi-language application server

4 > GlassFish integrates dynamic applications seamlessly ● Grails, Rails, Merb, Sinatra, Django, Lift ● Same deploy command for all frameworks ● asadmin deploy ● No packaging (no WAR files required) ● No change in programming model > Under-the-hood wiring ● Implements Rack, Web Server Gateway Interface (WSGI)

5 Why Is This Cool? > First-class support for dynamic language apps ● asadmin deploy /path/to/dynamic/app ● Just Works > Easy integration of dynamic apps into existing Java deployments ● Can run Ruby apps alongside Jython, Java EE, etc. > Embedded interpreters allow for some extra tricks > Rails runtime pooling > Monitoring and configuration

6 GlassFish v3 Extensibility > Pluggable Containers > Container handles user applications > Each language/framework has it's own container ● JRuby Container (Ruby/Rails/Merb) ● Jython Container (Python/Django) ● Web Container (for Servlet/JSP/Grails based apps) ● Each container is an OSGi bundle > Grizzly adapter to serve HTTP request

7 GlassFish JRuby Module JRubySniffer JRubyContai ner JRubyDeploy er GrizzlyAdapt er register Deploy

8 More on Scripting Containers... > Dynamic runtime pool ● Used for single threaded languages/framework ● Configurable ● Optimized resource usage > Lazy loading ● Loaded on application deployment ● Faster startup

9 GlassFish v3 Runtime

10 (J)Ruby on Rails Rack

11 Ruby support on GlassFish > Rack support ● Wires a web server to a Ruby application ● Based on WSGI from Python > Run any Ruby application that supports Rack > All major Ruby frameworks support Rack ● Rails (Starting 2.3.2), Merb, Sinatra, Campsite... > GlassFish has in built support for Rails, Merb and Sinatra

12 GlassFish gem > Project at RubyForge ● Based on GlassFish v3 Kernel > Lightweight ● Just about 2.5 MB in size > Ruby friendly > More info ●

13 Using GlassFish gem > How simple can it get?

14 Using GlassFish gem > How simple can it get? $ gem install glassfish

15 Using GlassFish gem > How simple can it get? $ gem install glassfish $ glassfish

16 Using GlassFish gem > How simple can it get? $ gem install glassfish $ glassfish -e production

17 Pluggable Framework support > Rack-up script > jruby.applicationType deployment property > GlassFish auto-detects your application Ruby App Deployme nt Ruby App Deployme nt Rack Auto-detector Rack Auto-detector Rails Your Framework Your Framework Merb Sinatr a Rack-up Script Rack-up Script

18 Demo Run your Rack aware Ruby application on GlassFish

19 (J)Python and Django

20 (J)Python and Django on GlassFish > Jython as Python interpreter > Jython container ● Like JRuby, extends GlassFish ● Jython Grizzly Adapter for HTTP processing ● WSGI support makes other Python frameworks simple to plugin > Simple deployment $ asadmin deploy myDjangoApp/

21 Demo Django application on GlassFish v3

22 Groovy and Grails Spring + Hibernate + Groovy = Grails

23 GlassFish v3 is Grails Aware!

24 GlassFish Grails Plugin > Install GlassFish as Grails plugin $ grails install-plugin glassfish --global > Now run your application on GlassFish $ grails run-app > Embedded GlassFish for Grails > Same server for development and production > Supports Grails run-app and run-war command

25 Agenda > Introduction > Dynamic Languages and the Java Virtual Machine > GlassFish: A Multi-Language app server > JavaEE and Dynamic Languages > Advance Features > Q&A

26 JavaEE and Dynamic Languages > JavaEE a mature and robust enterprise platform > Servlet, EJB, JMS, JAX-RS, JAX-WS... > What's possible now ● Co-host JavaEE application with a Ruby application ● Dispatch request from Rails to a Servlet ● Access Rails response inside a JSP ● Write to ServletResponse from inside Rails application > Made possible using JRuby-Rack

27 Servlet 3.0 pluggability > JavaEE 6 and Dynamic Languages ● Simple packaging ● No need to package as WAR ● Hence no Warbler needed ● Place Rails application inside WEB-INF directory ● No boilerplate web.xml ● Dynamically add Jruby-Rack ServletFilter and ServletContextListner ● Achived by implementing javax.servlet.ServletContainerInitializer

28 Servlet 3.0 Pluggability RailsContainerInitializer extends ServletContainerInitializer { public void onStartup(Set >c, ServletContext ctx) { //c will be null if ServletContainerInitializer does //not have annotation on it. InputStream boot = ctx.getResourceAsStream( "WEB-INF/environment/boot.rb"); //There is a Rails application inside this web archive, //lets add the servlet/filter etc. if(boot != null){ FilterRegistration fr = ctx.addFilter( “JRuby Rack Filter”, filterClass); //Use the FilterRegistration fr to add the //Filter related metadata. }

29 Agenda > Introduction > Dynamic Languages and the Java Virtual Machine > GlassFish: A Multi-Language app server > JavaEE and Dynamic Languages > Advance Features > Q&A

30 GlassFish Monitoring > Based on GlassFish probe infrastructure > GlassFish probes ● Emits monitoring data ● Probes exposed as dTrace probes ● JMX beans ● RESTful service > Scripting client ● Write monitoring client in Groovy or JRuby and deploy as a service on GlassFish

31 Ruby Monitoring > What is monitored in Ruby/Rack applications ● Container Probe ● HTTP stats ● JRuby runtime > Monitor using ● dTrace or JMX or your custom script or REST

32 Demo: Rails on Comet

33 Q&A

Speaker Name, Arial 28pt Speaker Contact Info, 22pt Misc Info, 16pt

35 Slide Heading: 36pt Subhead: 28pt > All text is Arial > Level One bullet point: 28pt ● Level Two bullet: 26pt ● Level Three: 22pt ● Level Four and subsequent: 18pt > Text block is aligned to the left