Além da fronteira entre Java & Ruby
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Friday, November 4, 2011

@abstractj
Java há 12 anos, Ruby n00b
TorqueBox Contributor
DynJS Contributor
Caelum & ConcreteS
Friday, November 4, 2011

DISCLAIMER
Friday, November 4, 2011

Java
927 JSRS!
nooooooooooooooo!
Friday, November 4, 2011

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) {
Expressiva? }
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;
}
Friday, November 4, 2011
}

ENTERPRISE
Friday, November 4, 2011

JAXR Java-FX JAXP
JSTL StAX JME
JDOM JVM
JAX-RPC EJB
AWT JMX
Swing
EAR Struts JAAS JCP
JavaBean
NPE Spring
JAX-WS ENTERPRISE RMI
JSE JNI JNDI NIO
SOA JSP
JSF JAXB WAR JDO
JAX-RS JPQL JAF POJO
EJBQL JRE
JEE
Friday, November 4, 2011

Friday, November 4, 2011

Mas escala né?!
Friday, November 4, 2011

Scala Clojure
Jython
JVM
DynJS
Rhino Groovy
Friday, November 4, 2011

Ruby
Mais expressiva que Java
class Beer
attr_accessor :beer_id, :description, :created_at
end
Friday, November 4, 2011

DRY
Friday, November 4, 2011

JRuby
Java + Ruby
Friday, November 4, 2011

JRuby
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
Friday, November 4, 2011

“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
Friday, November 4, 2011

Server Side
Friday, November 4, 2011

Ruby App
Sinatra Rails
Rack
Passenger/Thin
Apache/Nginx
Friday, November 4, 2011

Ruby App
Sinatra Rails
Rack
Passenger/Thin Jobs
Apache/Nginx crond
Friday, November 4, 2011

Ruby App
Sinatra Rails
Rack
Tasks Passenger/Thin Jobs
Resque/
DelayedJob Apache/Nginx crond
Friday, November 4, 2011

Ruby App
Sinatra Rails
Rack
Tasks Passenger/Thin Jobs
Resque/
DelayedJob Apache/Nginx crond
Daemons
god/monit
Friday, November 4, 2011

JBoss
Tomcat
Friday, November 4, 2011

JBoss
HornetQ
Friday, November 4, 2011

JBoss
Quartz
Friday, November 4, 2011

JBoss
Clustering
Friday, November 4, 2011

TorqueBox
“The power of JBoss with the
expressiveness of Ruby”
Jim Crossley - MagicRuby Conference
Friday, November 4, 2011

TorqueBox
Friday, November 4, 2011

Instalação
TorqueBox do zero
Friday, November 4, 2011

➜ jruby -S gem install torquebox torquebox-capistrano-support
Friday, November 4, 2011

➜ wget http://torquebox.org/builds/LATEST/torquebox-dist-
bin.zip
➜ unzip torquebox-dist-bin.zip
➜ export TORQUEBOX_HOME=$PWD/torquebox-2.x
➜ export JBOSS_HOME=$TORQUEBOX_HOME/jboss
➜ export JRUBY_HOME=$TORQUEBOX_HOME/jruby
➜ export PATH=$JRUBY_HOME/bin:$PATH
Friday, November 4, 2011

Rails
rails new beer -m $TORQUEBOX_HOME/share/rails/template.rb
Friday, November 4, 2011

Estrutura
Diretórios do TorqueBox
Friday, November 4, 2011

Rake tasks
rake torquebox:deploy
rake torquebox:undeploy
rake torquebox:run
Friday, November 4, 2011

Deployment
Make knobs, not WAR!
Friday, November 4, 2011

beer-knob.yml
application:
root: /Users/Bruno/rubyconfbr/beer
environment: development
Friday, November 4, 2011

Friday, November 4, 2011

Aplicação
Friday, November 4, 2011

source "http://torquebox.org/2x/builds/584/gem-
repo"
source 'http://rubygems.org'
gem 'rails', '3.1.1'
Gemfile
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"
Friday, November 4, 2011

Web
Rack, Sinatra, Rails
Friday, November 4, 2011

Caching
class BeersController < ApplicationController
caches_action :most_popular, :expires_in => 30.seconds
def most_popular
@popular_beers = Beer.most_popular(:limit => 25)
end
end
Friday, November 4, 2011

Friday, November 4, 2011

Clustering
➜ torquebox run --clustered
Friday, November 4, 2011

Internals
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
Friday, November 4, 2011

Cache distribuído!
Friday, November 4, 2011

mod_cluster
Friday, November 4, 2011

Infinispan
Caching
Friday, November 4, 2011

Invalidation
Cache Cache
Server1 Server2
Friday, November 4, 2011

Invalidation
Notificação
Cache Cache
Server1 Server2
NEW Cache
Desatualizado
Friday, November 4, 2011

../config/application.rb
module Beer
class Application < Rails::Application
config.cache_store = :torque_box_store
end
end
Friday, November 4, 2011

Replicated
Cache
Server2
Cache
Server1 Sync
Cache
Sync Server2
Cache
Server2
Friday, November 4, 2011

../config/application.rb
module Beer
class Application < Rails::Application
config.cache_store = :torque_box_store, {:mode =>
replicated, :sync =>false}
end
end
Friday, November 4, 2011

Scheduling
Agendamento de Jobs
Friday, November 4, 2011

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 );
watchDog(context);
job.run();
} catch (Exception e) {
throw new JobExecutionException( e );
} finally {
if (ruby != null) {
this.runtimePool.returnRuntime( ruby );
}
}
}
Friday, November 4, 2011

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 );
watchDog(context);
job.run();
} catch (Exception e) {
throw new JobExecutionException( e );
} finally {
if (ruby != null) {
this.runtimePool.returnRuntime( ruby );
}
}
}
Friday, November 4, 2011

../app/jobs
class JobDemo
def initialize
#Codigo de inicializacao
end
def run
# O que você quer executar
end
end
Friday, November 4, 2011

../config/torquebox.yml
jobs:
sync_agenda:
job: JobDemo
cron: '0 0 12 * * ?'
end
Friday, November 4, 2011

Mensageria
Java Messaging Service + HornetQ
Friday, November 4, 2011

O Ministério da Saúde adverte:
NOSQL COMO MENSAGERIA
PODE
TRAZER DANOS A SUA SAÚDE
E A DE SEUS FAMILIARES
Friday, November 4, 2011

Greenfield
REST + NoSQL
Request/Responsext
NoSQL
RAILS APP pub/sub SINATRA APP
Friday, November 4, 2011

Real World
Nobody Cares!
Request/Responsext
NoSQL
RAILS APP pub/sub MAINFRAME
Friday, November 4, 2011

../config/torquebox.yml
/topics/beerTopic
/queues/queueBeer:
Friday, November 4, 2011

Tasks
class EmailerTask < TorqueBox::Messaging::Task
def send_welcome(payload)
to = "#{payload[:name]} <#{payload[:address]}>"
# send welcome email to the user
end
end
Friday, November 4, 2011

Tasks
class UserController < ApplicationController
def register
user = User.new(params[:user])
EmailerTask.async(:send_welcome, :address =>
user.email, :name => user.name)
end
end
Friday, November 4, 2011

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
Friday, November 4, 2011

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
Friday, November 4, 2011

Future
Friday, November 4, 2011

Future
class EmailerTask
def send_welcome(payload)
to = "#{payload[:name]} <#{payload[:address]}>"
# long running task
end
end
Friday, November 4, 2011

Future
class EmailerTask
include TorqueBox::Messaging::Backgroundable
always_background :send_welcome
def send_welcome(payload)
to = "#{payload[:name]} <#{payload[:address]}>"
# long running task
end
end
Friday, November 4, 2011

Future
future = @emailTask.send_welcome(:send_welcome)
future.started?
future.complete?
future.error?
future.result
future.result(10000)
Friday, November 4, 2011

Services
Friday, November 4, 2011

Services
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
Friday, November 4, 2011

Singleton Services
Clustered
Server1 Server2
BeerService BeerService
Friday, November 4, 2011

Singleton Services
Clustered
Server1 Server2
BeerService BeerService
Friday, November 4, 2011

Services
➜ torquebox run --clustered
../config/torquebox.yml
services:
BeerService:
singleton: true
end
Friday, November 4, 2011

CDI
Injeção de dependências
Friday, November 4, 2011

Pra quê?
Friday, November 4, 2011

Java
package br.com.rubyconf;
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
Friday, November 4, 2011

Ruby
class BeerController < ApplicationController
include TorqueBox::Injectors
def create
beer = inject(br.com.rubyconf.Beer )
beer.say “Ruby is for Java”
end
end
Friday, November 4, 2011

JNDI
class MyService
include TorqueBox::Injectors
def initialize opts={}
@factory = inject("java:comp/env/jdbc/myDB")
end
end
Friday, November 4, 2011

Destinations
class MyService
include TorqueBox::Injectors
def initialize opts={}
@inbound = inject("/topic/beerpub")
@outbound = inject("/queue/beer")
end
end
Friday, November 4, 2011

Outras features
Autenticação + Websockets + XA (2PC)
Friday, November 4, 2011

BackStage
Friday, November 4, 2011

Stomp Box
TorqueBox deployment support
Friday, November 4, 2011

Friday, November 4, 2011

Comunidade
irc.freenode.net #torquebox
http://torquebox.org
http://github.com/torquebox
twitter: @torquebox
Friday, November 4, 2011

Obrigado!
@abstractj
http://github.com/abstractj
Creative Commons BY-­SA 3.0
Friday, November 4, 2011