Torquebox - O melhor dos dois mundos

O melhor dos dois mundos

Creative Commons BY-SA 3.0

Saturday, July 23, 2011

@abstractj

Java há 12 anos, Ruby n00b
TorqueBox Contributor
Instrutor Caelum


DISCLAIMER


Java

Come to the dark side


ENTERPRISE


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 JEE SOA NIO
JSP
JSF JAXB WAR JNDI JDO
JAX-RS JPQL EJBQL JAF POJO
JRE


Mas escala né?!


Server Side


JBoss
Tomcat + Inﬁnispan + HornetQ + Quartz + Clustering


Hot Deployment


Scala Clojure
Python

JVM
Ruby
JavaScript Groovy


Ruby
Mais expressiva que Java


JRuby
Java + Ruby


“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


TorqueBox
“The power of JBoss with the
expressiveness of Ruby”
Jim Crossley - MagicRuby Conference


TorqueBox


Instalação
TorqueBox do zero


➜ jruby -S gem install torquebox torquebox-capistrano-support


➜ wget http://torquebox.org/builds/LATEST/torquebox-dist-
bin.zip
➜ unzip torquebox-dist-bin.zip

➜ export TORQUEBOX_HOME=$PWD/torquebox-1.x
➜ export JBOSS_HOME=$TORQUEBOX_HOME/jboss
➜ export JRUBY_HOME=$TORQUEBOX_HOME/jruby

➜ export PATH=$JRUBY_HOME/bin:$PATH


Estrutura
Diretórios do TorqueBox


Rails
rails new bazinga -m $TORQUEBOX_HOME/share/rails/template.rb


Rake tasks
rake torquebox:deploy
rake torquebox:undeploy
rake torquebox:run


Deployment
Make knobs, not WAR!


bazinga-knob.yml
application:
root: /home/bruno/app/bazinga
env: development


Scheduling
Agendamento de Jobs


../app/jobs
class JobDemo

def initialize
#Codigo de inicializacao
end

def run
# O que você quer executar
end
end


../conﬁg/torquebox.yml
jobs:
sync_agenda:
job: JobDemo
cron: '0 0 12 * * ?'
end


Mensageria
Java Messaging Service + HornetQ


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


Tasks
class UserController < ApplicationController
def register
user = User.new(params[:user])

EmailerTask.async(:send_welcome, :address =>
user.email, :name => user.name)
end
end


messaging.yml
/topics/print: PrintHandler
/queues/students:
PrintHandler:
conﬁg:
color: true


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


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

puts req.receive
res.publish Time.now


Serviços


class BazingaService
def initialize
@queue = Messaging::Queue.new(“bazinga”)
end
def start
@queue.publish “Testing”
end

def stop
# O que fazer quando o serviço receber um stop
end
end


CDI - Simpliﬁcado
Injeção de dependências


Java
package com.gurusp;

public class Bazinga {
//gets e sets
public void say(String message) { // Execução do método }
}

Deploy do jar na aplicação
app/
models/
views/
controllers/
lib/bazinga.jar


Ruby
class BazingaController < ApplicationController

include TorqueBox::Injectors

def create
bazinga = inject(com.gurusp.Bazinga )
bazinga.say “Ruby is for Java”
end

end


Caching
class BeersController < ApplicationController

caches_action :most_popular, :expires_in => 30.seconds

def most_popular
@popular_beers = Beer.most_popular(:limit => 25)
end

end


Clustering
➜ $JBOSS_HOME/bin/run.sh -c all


Cache distribuído!


BackStage


Comunidade
irc.freenode.net #torquebox
http://torquebox.org
http://github.com/torquebox
twitter: @torquebox


Obrigado!
@abstractj

Creative Commons BY-SA 3.0


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