jRuby and TorqueBox

Christopher Spring + = Thursday 07 February 13

@autonomous [email protected] Thursday 07 February 13

Thursday 07 February 13

“Java is a DSL for converting large XML files into
Stack Traces” @ davetron5000 Thursday 07 February 13

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

Structure Thursday 07 February 13

Bytecode JIT Java Integ Core Classes Parser jRuby C API
Native JIT GC Threads JVM Charles Nutter - Euroko2012 Thursday 07 February 13

Bytecode JIT Java Integ Core Classes Parser jRuby Charles Nutter
- Euroko2012 Thursday 07 February 13

“We could stop working on jRuby and it would continue
to get faster.” Charles Nutter - Euroko2012 Thursday 07 February 13

Performance Thursday 07 February 13

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, ... ] Thursday 07 February 13

0 15 30 45 60 Time in seconds 52.8 Thursday
07 February 13

0 15 30 45 60 Time in seconds 52.8 10.4

0 15 30 45 60 Time in seconds 52.8 10.4
REE - 183.8 Thursday 07 February 13

get '/' do 1_000.times do MultiJson.encode({ one: 'one', date: Date.today,
two: 2 }) end end # ruby jsonator.rb -s Puma Thursday 07 February 13

ab -n 1000 -c 32 http://localhost:4567/ Thursday 07 February 13

0 7,5 15 22,5 30 Time in seconds 24.946 Thursday
07 February 13

0 7,5 15 22,5 30 Time in seconds 24.946 8.489

0 7,5 15 22,5 30 Time in seconds 24.946 2.892
8.489 Thursday 07 February 13

Runtime optimizations Thursday 07 February 13

method_one method_two method_three Thursday 07 February 13

Threading Thursday 07 February 13

vs. Thursday 07 February 13

• No GIL • Native threads • One process for
all cores Thursday 07 February 13

Concurrency threshold 100 process system 100 thread system vs. Thursday
07 February 13

Java Libraries Thursday 07 February 13

<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> Thursday 07 February 13

require 'stringio' require 'itext' require 'flying_saucer' io = StringIO.new content
= File.read('example.html') renderer = org.xhtmlrenderer.pdf.ITextRenderer.new renderer.set_document_from_string(content) renderer.layout renderer.create_pdf(io.to_outputstream) File.write('pdf_result.pdf', io.string) Thursday 07 February 13

html Thursday 07 February 13

pdf Thursday 07 February 13

A loads more....!!! • Choice of GC • Cross platform
• GUI apps • Great tooling • Massive ecosystem Thursday 07 February 13

Let’s take a step back... Thursday 07 February 13

Your App Thursday 07 February 13

Your App Background Jobs Thursday 07 February 13

Your App Background Jobs Scheduled Jobs Thursday 07 February 13

Your App Background Jobs Scheduled Jobs Cron Thursday 07 February
13

TorqueBox Thursday 07 February 13

TorqueBox App1 App2 App3 Thursday 07 February 13

TorqueBox App1 App2 App3 Background Tasks Scheduled Tasks Long running
services Async. Messages Thursday 07 February 13

TorqueBox App1 App2 App3 Background Tasks Scheduled Tasks Long running
services Async. Messages JBoss AS Clustering Load balancing High availability Thursday 07 February 13

Some of the toys... • HornetQ • Inﬁnispan • Quartz
Scheduler Thursday 07 February 13

It’s still just business as usual Thursday 07 February 13

Asynchronous Stuffs Thursday 07 February 13

class Charge < ActiveRecord::Base # id :integer not null, primary
key # cents :integer default(0) # state :string(255) default("pending") end Thursday 07 February 13

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 ) end end fetch('/queue/charges').publish( @charge.id ) Thursday 07 February 13

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 ) end end fetch('/queue/charges').publish( @charge.id ) '/queue/charges' ChargeProcessor Thursday 07 February 13

fetch('/queue/charges').publish( @charge.id ) # config/torquebox.rb TorqueBox.configure do queue '/queue/charges' do
processor ChargeProcessor end end Thursday 07 February 13

# app/processors/charge_processor.rb class ChargeProcessor < TorqueBox::Messaging::MessageProcessor def on_message( charge_id )
# ... end def on_error( exception ) # optionally deal with exception # ... end end Thursday 07 February 13

@charge = Charge.find( charge_id ) result = PaymentGateway.process( @charge ) generate_receipt if result.success? broadcast_status end end Thursday 07 February 13

@charge = Charge.find( charge_id ) result = PaymentGateway.process( @charge ) generate_receipt if result.success? broadcast_status end end def generate_receipt fetch('queue/receipts').publish( @charge.id ) end Thursday 07 February 13

@charge = Charge.find( charge_id ) result = PaymentGateway.process( @charge ) generate_receipt if result.success? broadcast_status end end def generate_receipt fetch('queue/receipts').publish( @charge.id ) end def broadcast_status fetch('topics/charge_status').publish( @charge.id ) end Thursday 07 February 13

Queue Topic Processor Processor Processor Processor Thursday 07 February 13

# config/torquebox.rb TorqueBox.configure do queue '/queue/charges' do # processors/charge_processor.rb processor
ChargeProcessor end topic '/topic/charge_status' do processor StatusProcessor processor TesterProcessor processor AlertAdminProcessor end end Thursday 07 February 13

And WebSockets? Thursday 07 February 13

Hells yes!! Thursday 07 February 13

Topic/Queue Processor Stomplet Client Thursday 07 February 13

Topic/Queue Processor Stomplet Client ‘/stomp/statuses’ Thursday 07 February 13

Topic/Queue Processor Stomplet Client ‘/stomp/statuses’ ‘/topics/charge_status’ Thursday 07 February 13

# config/torquebox.rb stomplet ChargeStatusStomplet do route '/stomp/status' end Thursday 07
February 13

# app/stomplets/charge_status_stomplet class 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 Thursday 07 February 13

javascript_include_tag '/stilts-stomp' Thursday 07 February 13

Thanks for Listening! Thursday 07 February 13

Questions? Thursday 07 February 13

jRuby and TorqueBox

jRuby and TorqueBox

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