![Web
(require '[immutant.web :as web])
(defn my-ring-handler [request]
;; process request here)
(web/start "/" my-ring-handler)
...
(web/stop "/")](https://image.slidesharecdn.com/devignition2011-111205081001-phpapp02/85/Devignition-2011-44-320.jpg)
![Messaging
(require
'[immutant.messaging :as msg])
(def q "/queue/morris_day")
(msg/start q)
(msg/publish q (Date.))
(println (msg/receive q))
; #<Date Fri Dec 2 16:54:56 EST 2011>](https://image.slidesharecdn.com/devignition2011-111205081001-phpapp02/85/Devignition-2011-46-320.jpg)
![Messaging
(msg/listen "/queue/morris_day"
(fn [body]
;; What time is it?!?
(println body)))](https://image.slidesharecdn.com/devignition2011-111205081001-phpapp02/85/Devignition-2011-47-320.jpg)
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Devignition 2011
- 1. The Polyglot Future of JBoss AS Toby Crawley Red Hat, Inc.
- 2. Present The Polyglot Future of JBoss AS Toby Crawley Red Hat, Inc.
- 3. Yours Truly • Senior SW Engineer at Red Hat • Core developer on TorqueBox & Immutant • Member of Project:Odd • @tcrawley
- 4. Agenda • intro • JBoss AS • JRuby & TorqueBox • Clojure & Immutant • crap, a demo • outro
- 6. JBoss AS 7 • Low memory footprint • Modularized class loader isolation • Fast startup time • Performant • EE6
- 7. “Java is a DSL for taking large XML files and converting them to stack traces” Scott Bellware
- 8. Goal Leverage the AS as a platform to reduce some of the accidental complexity of your deployment environment and allow you to use the best tool for the job.
- 9. Goal To make you more productive.
- 10. Goal To make you happy.
- 12. Ruby • Expressive • Dynamic typing • Less ceremony • Makes you feel more cleverer
- 13. Set<Person> people = new HashSet<Person>(); for ( Team each : teams ) { people.addAll( each.getMembers() ); } for ( Person each : people ) { each.promote(); }
- 15. JRuby • Real threads • Simple access to Java • Fastest Ruby implementation
- 16. require 'java' bar = org.projectodd.foo.Bar.new bar.a_value = 42 bar.bazerize
- 18. TorqueBox is an Application Server for Ruby built on top of JBoss AS7
- 19. Ruby!APIs!/!Programming!Models Java!APIs!/!Programming!Models Message Processors Polyglot WebSockets Injection Sinatra Rails Jobs STOMP POJO REST Servlet Rack Daemons Tasks Spring JMS JavaEE JRuby!Component!Deployers!&!Gems Java!Enterprise!Services JBoss Web Messaging Infinispan Cache TorqueBox HornetQ Transactions Core Quartz Security TorqueBox Core PicketLink JRuby with JIT Managed Services Container Java Virtual Machine
- 20. Web Supports any Rack framework (Rails, Sinata, Padrino, etc). Requests come in, responses go out. Works like you would expect...
- 21. Web ...but no war required. Just point TorqueBox at the application root.
- 22. Scheduled Jobs Simple cron-like scheduling that shares your application's lifecycle.
- 23. Scheduled Jobs class TPSReportJob def run # work happens here end end
- 24. Scheduled Jobs TorqueBox.configure do job TPSReportJob, :cron => '0 */5 * * * ?' end
- 25. Backgroundable Asynchronous execution with a simple api. Shares your application's lifecycle.
- 26. Backgroundable include TorqueBox::Messaging class User include Backgroundable always_background :send_welcome def send_welcome # slow email process end end
- 27. Messaging Layered on top of JMS and HornetQ. Useful for decoupling or polyglot interop.
- 28. Messaging queue = inject( '/queue/morris_day' ) queue.publish( Time.now ) puts queue.receive # Fri Dec 2 16:44:22 -0500 2011
- 29. Messaging include TorqueBox::Messaging class TheTime < MessageProcessor def on_message(body) # What time is it?!? puts body end end
- 30. Messaging TorqueBox.configure do queue '/queue/morris_day' do processor TheTime end end
- 31. Services Long running daemons that share the application's lifecycle.
- 32. Injection aka Inversion of Control. Telling the container what you need and letting it wire things up.
- 33. Distributed Transactions True multi-resource distributed transactions.
- 34. Things I Skipped • Built-in WebSockets • Simple clustering • Key/Value store via Infinispan (Caching)
- 36. Clojure • Modern Lisp for the JVM • Functional • Immutable data • Concise syntax • Nice Java integration
- 37. Set<Person> people = new HashSet<Person>(); for ( Team each : teams ) { people.addAll( each.getMembers() ); } for ( Person each : people ) { each.promote(); }
- 38. (map promote! (set (extract :members teams)))
- 39. (def extract mapcat) (map promote! (set (extract :members teams)))
- 40. (doto (org.projectodd.foo.Bar.) (.setAValue 42) (.bazerize))
- 41. Immutant
- 42. Immutant is an Application Server for Clojure being built on top of JBoss AS7
- 43. Web Supports Ring handlers. Works like you would expect. Requests come in, responses go out. Endpoints can be created dynamically.
- 44. Web (require '[immutant.web :as web]) (defn my-ring-handler [request] ;; process request here) (web/start "/" my-ring-handler) ... (web/stop "/")
- 45. Messaging Layered on top of JMS and HornetQ. Useful for decoupling or polyglot interop.
- 46. Messaging (require '[immutant.messaging :as msg]) (def q "/queue/morris_day") (msg/start q) (msg/publish q (Date.)) (println (msg/receive q)) ; #<Date Fri Dec 2 16:54:56 EST 2011>
- 47. Messaging (msg/listen "/queue/morris_day" (fn [body] ;; What time is it?!? (println body)))
- 48. Daemons Long running daemons that share the application's lifecycle.
- 49. Coming Soon • Scheduled Jobs • Distributed futures • Distributed state • Multi-resource transactions • Injection • You tell us!
- 52. Clojure twitter daemon queue Ruby Java processor TweetClassifier web topic sockets you! and you? and you!
- 53. Language LOC Ruby ~110 Clojure ~50 Java ~30 Javascript ~25
- 54. Availability • TorqueBox: 2.0.0.beta1 released today • Immutant: incremental builds available
- 55. Availability Monday • TorqueBox: 2.0.0.beta1 released today • Immutant: incremental builds available
- 57. Resources • http://torquebox.org • #torquebox on freenode • @torquebox • http://immutant.org • #immutant on freenode • @immutants
Editor's Notes
- #2: \n
- #3: \n
- #4: You! - java, other jvm langs, ruby, clojure\n\n
- #5: Fire up your laptops\n
- #6: JBoss, AS, AS7\n
- #7: \n
- #8: JVM is a platform\n
- #9: "just as the JVM..."\n
- #10: distill\nnot for the boss, but for your own happiness\n
- #11: distill further\n
- #12: \n
- #13: \n
- #14: a comparison\n
- #15: \n
- #16: \n
- #17: \n
- #18: \n
- #19: 1) teaches the AS how to deploy ruby apps\n2) exposes AS functionality via ruby interfaces\nstill run java (multiple apps)\n
- #20: "skimming the surface"\n"in the room"\n
- #21: \n
- #22: \n
- #23: \n
- #24: \n
- #25: First look at torquebox.rb\n
- #26: \n
- #27: Mention Futures\n
- #28: \n
- #29: \n
- #30: \n
- #31: \n
- #32: \n
- #33: \n
- #34: \n
- #35: \n
- #36: \n
- #37: \n
- #38: \n
- #39: \n
- #40: first class\ndefined a symbol pointing to the mapcat function\n
- #41: \n
- #42: \n
- #43: 1) teaches the AS how to deploy clojure apps\n2) exposes AS functionality via clojure interfaces\njava too!\n
- #44: mention no war\n
- #45: \n
- #46: \n
- #47: \n
- #48: \n
- #49: \n
- #50: \n
- #51: WIP\navout\n
- #52: Each are just modules added to the AS, so we can overlay\n
- #53: wish me luck! (shout?)\nCMD-TAB\n
- #54: \n
- #55: focus on solving the problem, not the platform\n
- #56: \n
- #57: \n
- #58: \n
- #59: \n
- #60: \n
- #61: try it out, find bugs\n
- #62: try it out, find bugs\n
- #63: we've talked about TB & I, and how they work\nand how they can be used together to build polyglot apps\nHopefully compelling\nif you try it, maybe we can make you happy\n\n
- #64: torquebox docs\nsausage, help\n(services story if there is time)\n
- #65: I have stickers!\nAre we still running?\n