When Java meets Ruby

Transcript

1. Creative Commons BY-SA 3.0 When Java meets Ruby Thursday, December 8, 11
2. @abstractj Java há 12 anos, Ruby n00b TorqueBox Contributor DynJS Contributor Caelum & ConcreteS Thursday, December 8, 11
3. DISCLAIMER Thursday, December 8, 11
4. nooooooooooooooo! Java 927 JSRS! Thursday, December 8, 11
5. Expressiva? import java.util.Calendar; public class Beer { private Long beerId; private String description; private Calendar createdAt; public Long getBeerId() { return beerId; } public void setBeerId(Long beerId) { this.beerId = beerId; } public String getDescription() { return description; } public void setDescription(String description) this.description = description; } public Calendar getCreatedAt() { return createdAt; } public void setCreatedAt(Calendar createdAt) this.createdAt = createdAt; } } Thursday, December 8, 11
6. ENTERPRISE Thursday, December 8, 11
7. ENTERPRISE WAR JAX-RPC Struts Spring JAAS EJB JNI EAR SOA JAX-WS JSF Java-FX JNDI RMI JMX JAXP JAXB JDO JAX-RS JAXR JSTL StAX JAF JDOM AWT Swing JEE JSE JCP JVM JME NIO JSP JRE POJO JavaBean EJBQL JPQL NPE Thursday, December 8, 11
8. Thursday, December 8, 11
9. Mas escala né?! Thursday, December 8, 11
10. JVM Scala Clojure Jython DynJS Rhino Groovy Thursday, December 8, 11
11. Ruby Mais expressiva que Java class Beer attr_accessor :beer_id, :description, :created_at end Thursday, December 8, 11
12. DRY “It is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.” - Abraham Maslow Thursday, December 8, 11
13. JRuby Java + Ruby Thursday, December 8, 11
14. require 'java' pdf = com.itextpdf.text.Document.new para = com.itextpdf.text.Paragraph.new 'Brought to you by JRuby' file = java.io.FileOutputStream.new 'pdf_demo.pdf' com.itextpdf.text.pdf.PdfWriter.get_instance pdf, file pdf.open pdf.add para pdf.close JRuby Thursday, December 8, 11
15. “You get true multithreading that can use all your computer’s cores from one process, plus a virtual machine that’s been tuned for a decade and a half.” Using JRuby - Bringing Ruby to Java Thursday, December 8, 11
16. Server Side Thursday, December 8, 11
17. Ruby App Rails Rack Sinatra Apache/Nginx Passenger/Thin Thursday, December 8, 11
18. Rails Rack Sinatra Apache/Nginx Passenger/Thin crond Jobs Ruby App Thursday, December 8, 11
19. Rails Rack Sinatra Apache/Nginx Passenger/Thin crond Jobs Resque/ DelayedJob Tasks Ruby App Thursday, December 8, 11
20. Rails Rack Sinatra Apache/Nginx Passenger/Thin crond Jobs Resque/ DelayedJob Tasks god/monit Daemons Ruby App Thursday, December 8, 11
21. JBoss Tomcat Thursday, December 8, 11
22. JBoss HornetQ Thursday, December 8, 11
23. JBoss Quartz Thursday, December 8, 11
24. JBoss Clustering Thursday, December 8, 11
25. AS 7 Redução do footprint de memória Class loader modular Queda no tempo de startup EE6 compliant Thursday, December 8, 11
26. TorqueBox “The power of JBoss with the expressiveness of Ruby” Jim Crossley - MagicRuby Conference Thursday, December 8, 11
27. TorqueBox Thursday, December 8, 11
28. Instalação TorqueBox do zero Thursday, December 8, 11
29. Pré-requisitos ➜ java -version java version "1.6.0_07" Java(TM) SE Runtime Environment (build 1.6.0_07-b06-153) Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_07-b06-57, mixed mode) Thursday, December 8, 11
30. ➜ jruby -S gem install torquebox torquebox-capistrano-support Thursday, December 8, 11
31. ➜ wget http://repository-torquebox.forge.cloudbees.com/ release/org/torquebox/torquebox-dist/2.0.0.beta1/torquebox- dist-2.0.0.beta1-bin.zip ➜ unzip torquebox-dist-2.0.0.beta1-bin.zip ➜ export TORQUEBOX_HOME=$PWD/torquebox- dist-2.0.0.beta1 ➜ export JBOSS_HOME=$TORQUEBOX_HOME/jboss ➜ export JRUBY_HOME=$TORQUEBOX_HOME/jruby ➜ export PATH=$JRUBY_HOME/bin:$PATH Thursday, December 8, 11
32. Rails rails new beer -m $TORQUEBOX_HOME/share/rails/template.rb Thursday, December 8, 11
33. Estrutura Diretórios do TorqueBox Thursday, December 8, 11
34. Rake tasks rake torquebox:deploy rake torquebox:undeploy rake torquebox:run Thursday, December 8, 11
35. Deployment Make knobs, not WAR! Thursday, December 8, 11
36. beer-knob.yml application: root: /Users/Bruno/javaonebrasil/beer environment: development Thursday, December 8, 11
37. Thursday, December 8, 11
38. Aplicação Thursday, December 8, 11
39. Gemfile source "http://torquebox.org/2x/builds/584/gem- repo" source 'http://rubygems.org' gem 'rails', '3.1.1' gem 'activerecord-jdbcsqlite3-adapter' gem 'jruby-openssl' gem 'json' gem 'jquery-rails' gem "torquebox-rake-support", "2.x.incremental. 584" gem "torquebox", "2.x.incremental.584" Thursday, December 8, 11
40. Web Rack, Sinatra, Rails Thursday, December 8, 11
41. Caching class BeersController < ApplicationController caches_action :most_popular, :expires_in => 30.seconds def most_popular @popular_beers = Beer.most_popular(:limit => 25) end end Thursday, December 8, 11
42. Thursday, December 8, 11
43. Clustering ➜ torquebox run --clustered Thursday, December 8, 11
44. class TorqueBoxCommand < Thor TASK_ORDER = %w(deploy undeploy start cli env help) map "run" => "start" desc "run", "Run TorqueBox" method_option :clustered, :type => :boolean, :desc => "Run TorqueBox in clustered mode" def start setup_environment TorqueBox::DeployUtils.run_server(:clustered => options.clustered, :max_threads => options['max-threads'], :bind_address => options['bind-address']) end end Internals Thursday, December 8, 11
45. Cache distribuído! Thursday, December 8, 11
46. mod_cluster httpd-based load balancer Thursday, December 8, 11
47. Infinispan Caching Thursday, December 8, 11
48. Invalidation Cache Server1 Cache Server2 Thursday, December 8, 11
49. Invalidation Cache Server1 Cache Server2 NEW Notificação Cache Desatualizado Thursday, December 8, 11
50. ../config/application.rb module Beer class Application < Rails::Application config.cache_store = :torque_box_store end end Thursday, December 8, 11
51. Replicated Cache Server1 Cache Server2 Cache Server2 Cache Server2 Sync Sync Thursday, December 8, 11
52. ../config/application.rb module Beer class Application < Rails::Application config.cache_store = :torque_box_store, {:mode => replicated, :sync =>false} end end Thursday, December 8, 11
53. Scheduling Agendamento de Jobs Thursday, December 8, 11
54. Internals public class RubyJobProxy implements Job { @Override public void execute(JobExecutionContext context) throws JobExecutionException { Ruby ruby = null; try { ruby = this.runtimePool.borrowRuntime( resolver.getComponentName() ); JobComponent job = (JobComponent)resolver.resolve( ruby ); job.run(); } catch (Exception e) { throw new JobExecutionException( e ); } finally { if (ruby != null) { this.runtimePool.returnRuntime( ruby ); } } } Thursday, December 8, 11
55. Internals public class RubyJobProxy implements Job { @Override public void execute(JobExecutionContext context) throws JobExecutionException { Ruby ruby = null; try { ruby = this.runtimePool.borrowRuntime( resolver.getComponentName() ); JobComponent job = (JobComponent)resolver.resolve( ruby ); job.run(); } catch (Exception e) { throw new JobExecutionException( e ); } finally { if (ruby != null) { this.runtimePool.returnRuntime( ruby ); } } } Thursday, December 8, 11
56. ../app/jobs class JobDemo def initialize #Codigo de inicializacao end def run # O que você quer executar end end Thursday, December 8, 11
57. ../config/torquebox.yml jobs: sync_agenda: job: JobDemo cron: '0 0 12 * * ?' end Thursday, December 8, 11
58. Mensageria Java Messaging Service + HornetQ Thursday, December 8, 11
59. O Ministério da Saúde adverte: NOSQL COMO MENSAGERIA PODE TRAZER DANOS A SUA SAÚDE E A DE SEUS FAMILIARES Thursday, December 8, 11
60. RAILS APP Greenfield REST + NoSQL SINATRA APP Request/Responsext pub/sub NoSQL Thursday, December 8, 11
61. RAILS APP Real World Nobody Cares! MAINFRAME Request/Responsext pub/sub NoSQL Thursday, December 8, 11
62. ../config/torquebox.yml /topics/beerTopic /queues/queueBeer: Thursday, December 8, 11
63. Tasks class EmailerTask < TorqueBox::Messaging::Task def send_welcome(payload) to = "#{payload[:name]} <#{payload[:address]}>" # send welcome email to the user end end Thursday, December 8, 11
64. Tasks class UserController < ApplicationController def register user = User.new(params[:user]) EmailerTask.async(:send_welcome, :address => user.email, :name => user.name) end end Thursday, December 8, 11
65. Processors include TorqueBox::Messaging class PrintHandler < MessageProcessor def on_message(body) puts "Processing #{body} of #{message}" end def configure(opts) @color = opts['color'] end end Thursday, December 8, 11
66. Queues include TorqueBox req = Messaging::Queue.new '/queues/questions' res = Messaging::Queue.new '/queues/answers' Thread.new do req.publish "What time is it?" puts res.receive( :timeout => 1000 ) end Thursday, December 8, 11
67. Future Thursday, December 8, 11
68. class EmailerTask def send_welcome(payload) to = "#{payload[:name]} <#{payload[:address]}>" # long running task end end Future Thursday, December 8, 11
69. class EmailerTask include TorqueBox::Messaging::Backgroundable always_background :send_welcome def send_welcome(payload) to = "#{payload[:name]} <#{payload[:address]}>" # long running task end end Future Thursday, December 8, 11
70. future = @emailTask.send_welcome(:send_welcome) future.started? future.complete? future.error? future.result future.result(10000) Future Thursday, December 8, 11
71. Services Thursday, December 8, 11
72. class BeerService def initialize @queue = Messaging::Queue.new(“beer”) end def start @queue.publish “Testing” end def stop # O que fazer quando o serviço receber um stop end end Services Thursday, December 8, 11
73. Singleton Services Server1 Server2 Clustered BeerService BeerService Thursday, December 8, 11
74. Singleton Services Server1 Server2 Clustered BeerService BeerService Thursday, December 8, 11
75. Services ➜ torquebox run --clustered ../config/torquebox.yml services: BeerService: singleton: true end Thursday, December 8, 11
76. CDI Injeção de dependências Thursday, December 8, 11
77. Pra quê? Thursday, December 8, 11
78. Java package br.com.javaonebrasil; public class Beer { //gets e sets public void say(String message) { // Execução do método } } Deploy do jar na aplicação app/ models/ views/ controllers/ lib/beer.jar Thursday, December 8, 11
79. Ruby class BeerController < ApplicationController include TorqueBox::Injectors def create beer = inject(br.com.javaonebrasil.Beer ) beer.say “Ruby is for Java” end end Thursday, December 8, 11
80. JNDI class MyService include TorqueBox::Injectors def initialize opts={} @factory = inject("java:comp/env/jdbc/myDB") end end Thursday, December 8, 11
81. Destinations class MyService include TorqueBox::Injectors def initialize opts={} @inbound = inject("/topic/beerpub") @outbound = inject("/queue/beer") end end Thursday, December 8, 11
82. Transactions Rails Application Queue Database Infinispan Topic XA Distributed, multi resource transaction Thursday, December 8, 11
83. XA (2PC) HornetQ ✔ TorqueBox + ActiveRecord ✔ Infinispan ✔ Thursday, December 8, 11
84. Outras features Autenticação + Websockets Thursday, December 8, 11
85. BackStage Thursday, December 8, 11
86. Stomp Box TorqueBox deployment support Thursday, December 8, 11
87. Thursday, December 8, 11
88. What’s next? Thursday, December 8, 11
89. Polyglot Queue Queue Immutant TorqueBox Thursday, December 8, 11
90. Getting started Installing TorqueBox 2.0 http://vimeo.com/33299335 Thursday, December 8, 11
91. Comunidade irc.freenode.net #torquebox http://torquebox.org http://github.com/torquebox twitter: @torquebox Thursday, December 8, 11
92. Creative Commons BY-SA 3.0 Obrigado! @abstractj http://github.com/abstractj Thursday, December 8, 11