jruby and torquebox

Christopher Spring

Thursday 07 February 13

@autonomous

chris.spring@gmail.com

“Java is a DSL for converting large XML files into Stack Traces”

@ davetron5000

... and that’s all I have to say about that

Structure

BytecodeJIT

JavaInteg

CoreClassesParser

C APINative

JITGCThreads

Charles Nutter - Euroko2012Thursday 07 February 13

BytecodeJIT

JavaInteg

CoreClassesParser

“We could stop working on jRuby and it would continue to get faster.”

Performance

require 'benchmark'

def fib(n) return 1 if n < 2 fib(n - 2) + fib(n - 1)end

arr = []puts Benchmark.measure{ 40.times{ |i| arr << fib(i) }}puts arr.inspect# [1, 1, 2, 3, 5, 8, 13, 21, ... ]

Time in seconds

REE - 183.8

get '/' do 1_000.times do MultiJson.encode({ one: 'one', date: Date.today, two: 2 }) endend

# ruby jsonator.rb -s Puma

ab -n 1000 -c 32 http://localhost:4567/

Time in seconds

24.946

Time in seconds

24.946

Time in seconds

24.946

Runtime optimizations

method_one method_two method_three

Threading

• No GIL

• Native threads

• One process for all cores

Concurrency threshold

100 process system

100 thread system

Java Libraries

<html><head> <style type="text/css"> body{ font-family: sans-serif; text-align: center; background-color: #efefef; } h1{ color: blue; font-weight: bold;} div{ border: 4px dashed red; padding: 2em;margin: 2em; } </style> </head> <body> <h1>PDFs with Flying Saucer and jRuby</h1> <div> <p>I'm a lumberjack, and I'm ok...</p> <img src="flower.jpeg"></img> </div> </body></html>

require 'stringio'require 'itext'require 'flying_saucer'

io = StringIO.newcontent = File.read('example.html')

renderer = org.xhtmlrenderer.pdf.ITextRenderer.newrenderer.set_document_from_string(content)renderer.layoutrenderer.create_pdf(io.to_outputstream)

File.write('pdf_result.pdf', io.string)

A loads more....!!!

• Choice of GC

• Cross platform

• GUI apps

• Great tooling

• Massive ecosystem

Let’s take a step back...

Your App

BackgroundJobs

Your App

BackgroundJobs

Your App

BackgroundJobs

ScheduledJobs

Your App

BackgroundJobs

ScheduledJobs

TorqueBox

App1App2App3

BackgroundTasks

ScheduledTasks

Long runningservices

Async. Messages

TorqueBox

App1App2App3

BackgroundTasks

ScheduledTasks

Long runningservices

Async. Messages

JBoss AS

Clustering Load balancing High availability

Some of the toys...

• HornetQ

• Infinispan

• Quartz Scheduler

It’s still justbusiness as usual

AsynchronousStuffs

class Charge < ActiveRecord::Base # id :integer not null, primary key # cents :integer default(0) # state :string(255) default("pending")end

class ChargesController < ActionController::Base include TorqueBox::Injectors def create @charge = Charge.create( params[:charge] ) msg = 'Slaves turtles doing thy bidding' redirect_to( charges_url, notice: msg ) endend

fetch('/queue/charges').publish( @charge.id )

'/queue/charges' ChargeProcessor

# config/torquebox.rbTorqueBox.configure do

queue '/queue/charges' do processor ChargeProcessor end

# app/processors/charge_processor.rbclass ChargeProcessor < TorqueBox::Messaging::MessageProcessor def on_message( charge_id ) # ... end def on_error( exception ) # optionally deal with exception # ... endend

# app/processors/charge_processor.rbclass ChargeProcessor < TorqueBox::Messaging::MessageProcessor def on_message( charge_id ) @charge = Charge.find( charge_id ) result = PaymentGateway.process( @charge ) generate_receipt if result.success? broadcast_status end

def generate_receipt fetch('queue/receipts').publish( @charge.id ) end

def broadcast_status fetch('topics/charge_status').publish( @charge.id )end

Processor

# config/torquebox.rbTorqueBox.configure do queue '/queue/charges' do # processors/charge_processor.rb processor ChargeProcessor end topic '/topic/charge_status' do processor StatusProcessor processor TesterProcessor processor AlertAdminProcessor endend

And WebSockets?

Hells yes!!

Topic/Queue

Processor

Stomplet

Client

Topic/Queue

Processor

Stomplet

Client

‘/stomp/statuses’

Topic/Queue

Processor

Stomplet

Client

‘/stomp/statuses’‘/topics/charge_status’

# config/torquebox.rbstomplet ChargeStatusStomplet do route '/stomp/status'end

# app/stomplets/charge_status_stompletclass ChargeStatusStomplet < TorqueBox::Stomp::JmsStomplet def on_subscribe( client ) topic = destination_for('/topics/charge_status', :topic) subscribe_to( client , topic ) end # configure(config) # destroy() # on_subscribe(subscriber) # on_unsubscribe(subscriber) # on_message(message)end

javascript_include_tag '/stilts-stomp'

var stompUrl = '#{stomp_url}'

$( function() { if (stompUrl) { var client = Stomp.client(stompUrl);

client.connect( username, password, function() { client.subscribe( '/stomp/status', function(msg) { alert(msg.body); }); }); }});

module ApplicationHelper include TorqueBox::Injectors def stomp_url inject('stomp-endpoint') endend

Thanks for Listening!

Questions?

jruby and torquebox

Technology

jruby presentation may06

jruby and you

jruby topic maps

jruby at linkedin

simple scalability with torquebox - toby crawley ·...

torquebox oscon java 2011

your first day with jruby - jfokus · books books books!...

torquebox - like a jboss - philly redsnake talk

day 8 - jruby

when ruby meets java - the power of torquebox

migrate to jruby

jruby rules

jano gonzalez - jruby

complex made simple: sleep better with torquebox

torquebox - the ruby application platform

datasheet a4 torquebox - jboss

jruby hacking guide

torquebox @ charlotte.rb may 2011

practical jruby

jruby - enterprise 2.0