.NET Architects Day - DNAD 2011

Discutindo Rails e Arquiteturas a apresentação já vai começar ...

Discutindo Rails e Arquiteturas

Fabio Akitawww.akitaonrails.com @akitaonrails

Fabio Akitawww.akitaonrails.com @akitaonrails 1990

Anos 80 Fim Anos 90 Século XXI

Anos 80 Fim Anos 90 Século XXI PerlBasic Pascal Java C PHP dBase Delphi Python ABAP III Ruby Clipper ASP .NET ObjC VB6

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Como o cliente Como o Líder de Como o Analista Como o Programador Como o Consultor de explicou Projeto entendeu desenhou escreveu Negócios descreveuComo o projeto foi Como Operações Como o cliente foi O que o cliente Como foi o suporte documentado instalou cobrado realmente queria

Requerimentos: ENTENDIDO!

DESIGN

Pattern PADRÃO

STANDARD Pattern PADRÃO Default

“Pattern”

NÃO é “Standard”!

Christopher Alexander

cada padrão (“pattern”)representa nosso melhor chute agora ... os padrões ainda são hipóteses, ... e portanto todos são tentativas, todos livres para evoluir sob o impacto de novas experiências e observações." Christopher Alexander

2 + 2 = 5!

2 + 2 = 4!

Aqui estão os fatos. Que Aqui está a conclusão. conclusões podemos Que fatos podemos chegar com eles? suportar com eles?

20 80 “Long Tail”

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Pequenos (Startups?) Grandes(Enterprisey?)

Pequenos (Startups?)D DD Grandes (Enterprisey?)

Pequenos (Startups?) DD ”D ht Grandes“Lig (Enterprisey?)

Pequenos (Startups?) Grandes(Enterprisey?)

Complexidade Acidental

Ruby on Rails é a melhor forma de desenvolverqualquer aplicação Web.

Todas as outras formas de desenvolver aplicaçõesWeb são inferiores a Ruby on Rails.

Ruby on Rails é uma das maneiras competentesde se desenvolver aplicações Web em algunscenários.

1994 (linguagem) 2004(framework web)

1.8.7 1.9.21.9.3-dev 2.3.11 3.0.73.1-RC1

gem install railsrails new nome_do_projeto

gem install railsrails new nome_do_projeto SIM! Via CLI! :-P

Request Web Server Rack Middlewares Routes ControllerView Model

Response Request Web Server Rack Middlewares Routes Controller View Model

~30 mil gems ~15 GB

bundle install

RubyGems Library Assembly (DLL) Rake MSBuild Bundler NuGet

> bundle listGems included by the bundle: * mail (2.2.19) * abstract (1.0.0) * mime-types (1.16) * actionmailer (3.0.7) * polyglot (0.3.1) * actionpack (3.0.7) * rack (1.2.2) * activemodel (3.0.7) * rack-mount (0.6.14) * activerecord (3.0.7) * rack-test (0.5.7) * activeresource (3.0.7) * rails (3.0.7) * activesupport (3.0.7) * railties (3.0.7) * arel (2.0.9) * rake (0.8.7) * builder (2.1.2) * sqlite3 (1.3.3) * bundler (1.0.13) * thor (0.14.6) * erubis (2.6.6) * treetop (1.4.9) * i18n (0.5.0) * tzinfo (0.3.27)

> rake -T rake log:clearrake about rake middlewarerake db:create rake notesrake db:drop rake notes:customrake db:fixtures:load rake rails:templaterake db:migrate rake rails:updaterake db:migrate:status rake routesrake db:rollback rake secretrake db:schema:dump rake statsrake db:schema:load rake testrake db:seed rake test:recentrake db:setup rake test:uncommittedrake db:structure:dump rake time:zones:allrake db:version rake tmp:clearrake doc:app rake tmp:create

> rails generateUsage: rails generate GENERATOR [args] [options]General options: -h, [--help] # Print generators options and usage -p, [--pretend] # Run but do not make any changes -f, [--force] # Overwrite files that already exist -s, [--skip] # Skip files that already exist -q, [--quiet] # Suppress status outputPlease choose a generator below.Rails: observer controller performance_test generator plugin helper resource integration_test scaffold mailer scaffold_controller migration session_migration model stylesheets

> rake middleware Rack Middlewaresuse ActionDispatch::Staticuse Rack::Lockuse ActiveSupport::Cache::Strategy::LocalCacheuse Rack::Runtimeuse Rails::Rack::Loggeruse ActionDispatch::ShowExceptionsuse ActionDispatch::RemoteIpuse Rack::Sendfileuse ActionDispatch::Callbacksuse ActiveRecord::ConnectionAdapters::ConnectionManagementuse ActiveRecord::QueryCacheuse ActionDispatch::Cookiesuse ActionDispatch::Session::CookieStoreuse ActionDispatch::Flashuse ActionDispatch::ParamsParseruse Rack::MethodOverrideuse ActionDispatch::Headuse ActionDispatch::BestStandardsSupportrun Demo::Application.routes

Response Request Web Server Rack Middlewares Routes Controller View Model

Response Request Web Server Application Rack Middlewares Server Rack: Mongrel, Routes Thin, Passenger, Controller Unicorn View Model

Web Server: NginXResponse Request Apache Web Server Application Rack Middlewares Server Rack: Mongrel, Routes Thin, Passenger, Controller Unicorn View Model

NginX, Apache, Lighty, IIS Reverse ProxyMongrel, Thin, Unicorn, Passenger ActiveRecord/DataMapper RDBMS/NoSQL

NginX, Apache, Lighty, IIS Reverse ProxyMongrel, Thin, Unicorn, Passenger TidyTDS ActiveRecord/DataMapper SQL Server SQL Azure RDBMS/NoSQL

NginX, Apache, Lighty, IIS Reverse ProxyMongrel, Thin, Unicorn, Passenger ActiveRecord/DataMapperActiveResource/RestClient/Savon WCF RDBMS/NoSQL Web Services (REST, SOAP)

HAProxy NginX, Apache, Lighty, IIS Reverse ProxyMongrel, Thin, Unicorn, Passenger ActiveRecord/DataMapperActiveResource/RestClient/Savon RDBMS/NoSQL Web Services (REST, SOAP)

HAProxy NginX, Apache, Lighty, IIS Varnish Reverse ProxyMongrel, Thin, Unicorn, Passenger ActiveRecord/DataMapperActiveResource/RestClient/Savon RDBMS/NoSQL Web Services (REST, SOAP)

HAProxy NginX, Apache, Lighty, IIS Varnish Reverse ProxyMongrel, Thin, Unicorn, Passenger ActiveRecord/DataMapperActiveResource/RestClient/Savon Memcache RDBMS/NoSQL Web Services (REST, SOAP)

Request Request Request Request Request RequestHTTPD HTTPD HTTPD HTTPD HTTPD HTTPD Rails Rails Rails Rails Rails Rails App App App App App App RDBMS

Request Request Request Request Request RequestHTTPD HTTPD HTTPD HTTPD HTTPD HTTPD Rails Rails Rails Rails Rails Rails App App App App App App Mais curto RDBMS possível!

Thread Context Switch

$(:checkbox).map(function() { return this.id;}).get().join(,);

RailsRequest App

Eventos AssíncronosEnvio de mensagens

Request Request Request Request Request RequestHTTPD HTTPD HTTPD HTTPD HTTPD HTTPD Rails Rails Rails Rails Rails Rails App App App App App App RDBMS

Request Request Request Request Request Request NginX Event Machine RDBMS

Request Request Request Request Request Request NginX Event Machine “Look Ma! No Threads!” RDBMS

Request Request Request Request Request Request NginX 5k ~ 10k conexões Event Machine “Look Ma! No Threads!” RDBMS

Request Request Request Request Request Request NginX 5k ~ 10k conexões Conexões Longas Event Machine “Look Ma! No Threads!” RDBMS

myChannel.bind(coisa-criada, function(thing) { alert(Uma coisa foi criada: + thing.name);});

require pusherPusher.app_id = APP_IDPusher.key = API_KEYPusher.secret = SECRET_KEYclass ThingsController < ApplicationController def create @thing = Thing.new(params[:thing]) if @thing.save Pusher[MEU_CANAL].trigger(coisa-criada, @thing.attributes) end endend

Arquitetura deAltíssima Concorrência

W. Edward Deming

IN GOD WE TRUSTTodos os outros devem trazer dados

EXPERIENCE BY ITSELF BRINGS NOTHING

Ciclo “Plan-Do-Check-Act” (melhoria contínua) P A D C

Ciclo “Plan-Do-Check-Act” (melhoria contínua) P A D C STANDARD

Ciclo “Plan-Do-Check-Act” (melhoria contínua) P A D C

Python

20112010200920082007 Ruby on Rails

201120102009 2.0.52008 62007 Ruby on Rails 2.0.0

201120102009 2.1.2 2.0.5 3 2.1.02008 62007 Ruby on Rails 2.0.0

20112010 2.2.32009 2.1.2 4 2.2.0 2.0.5 3 2.1.02008 62007 Ruby on Rails 2.0.0

2011 2.3.112010 2.2.3 122009 2.3.0 2.1.2 4 2.2.0 2.0.5 3 2.1.02008 62007 Ruby on Rails 2.0.0

3.0.7 2.3.11 820112010 3.0.0 2.2.3 122009 2.3.0 2.1.2 4 2.2.0 2.0.5 3 2.1.02008 62007 Ruby on Rails 2.0.0

3.0.72011 2.3.112010 3.0.0 2.2.32009 2.1.2 2.3.0 31 2.2.0 Versões! 2.0.5 2.1.020082007 Ruby on Rails 2.0.0

Request Web Server Rails App/public/stylesheets

Request Web ServerArquivosEstáticos Rails App /public/stylesheets

Variáveis$blue: #3bbfce;$margin: 16px; /* CSS */.content-navigation { .content-navigation { border-color: $blue; border-color: #3bbfce; color: color: #2b9eab; darken($blue, 9%); }} .border {.border { padding: 8px; padding: $margin / 2; margin: 8px; margin: $margin / 2; border-color: #3bbfce; border-color: $blue; }}

Nestingtable.hl { /* CSS */ margin: 2em 0; td.ln { table.hl { text-align: right; margin: 2em 0; } }} table.hl td.ln { text-align: right;li { } font: { family: serif; li { weight: bold; font-family: serif; size: 1.2em; font-weight: bold; } font-size: 1.2em;} }

Mixins@mixin table-base { th { /* CSS */ text-align: center; font-weight: bold; #data { } td, th {padding: 2px} float: left;} margin-left: 10px; }@mixin left($dist) { #data th { float: left; text-align: center; margin-left: $dist; font-weight: bold;} } #data td, #data th {#data { @include left(10px); padding: 2px; @include table-base; }}

Selector Inheritance /* CSS */.error { .error, .badError { border: 1px #f00; border: 1px #f00; background: #fdd; background: #fdd;} }.error.intrusion { font-size: 1.3em; .error.intrusion, font-weight: bold; .badError.intrusion {} font-size: 1.3em; font-weight: bold;.badError { } @extend .error; border-width: 3px; .badError {} border-width: 3px; }

class Animal constructor: (@name) -> move: (meters) -> alert @name + " moved " + meters + "m."class Snake extends Animal move: -> alert "Slithering..." super 5class Horse extends Animal move: -> alert "Galloping..." super 45sam = new Snake "Sammy the Python"tom = new Horse "Tommy the Palomino"sam.move()tom.move()

var Animal, Horse, Snake, sam, tom; var __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor;class Animal child.__super__ = parent.prototype; constructor: (@name) -> return child; }; Animal = (function() { move: (meters) -> function Animal(name) { this.name = name; alert @name + " moved " + meters + "m." } Animal.prototype.move = function(meters) { return alert(this.name + " moved " + meters + "m.");class Snake extends Animal }; return Animal; move: -> })(); alert "Slithering..." Snake = (function() { __extends(Snake, Animal); super 5 function Snake() { Snake.__super__.constructor.apply(this, arguments); }class Horse extends Animal Snake.prototype.move = function() { alert("Slithering..."); move: -> return Snake.__super__.move.call(this, 5); alert "Galloping..." }; return Snake; super 45 })(); Horse = (function() { __extends(Horse, Animal);sam = new Snake "Sammy the Python" function Horse() {tom = new Horse "Tommy the Palomino" Horse.__super__.constructor.apply(this, arguments); } Horse.prototype.move = function() { alert("Galloping...");sam.move() return Horse.__super__.move.call(this, 45);tom.move() }; return Horse; })(); sam = new Snake("Sammy the Python"); tom = new Horse("Tommy the Palomino"); sam.move(); tom.move(); loadrun

Request Request Web Server Web Server(Desenvolvimento) (Produção) Rails App /app/assets /public

Request Request Web Server Web Server(Desenvolvimento) (Produção) Rails Sprockets App /app/assets /public

Request Request Web Server Web Server(Desenvolvimento) (Produção) Rails Sprockets App Tilt /app/assets /public

Request Request Web Server Web Server(Desenvolvimento) (Produção) Rails Sprockets App Tilt Ugli er /app/assets /public

ENGINE FILE EXTENSIONS REQUIRED LIBRARIESERB .erb, .rhtml noneInterpolated String .strErubis .erb, .rhtml, .erubis erubisHaml .haml hamlSass .sass sassScss .scssLess CSS .less lessBuilder .builder builderLiquid .liquid liquidRDiscount rdiscountRedcarpet redcarpetBlueCloth .markdown, .mkd, .md blueclothKramdown kramdownMaruku marukuRedCloth .textile redclothRDoc .rdoc rdocRadius .radius radiusMarkaby .mab markabyNokogiri .nokogiri nokogiriCoffeeScript .coffee coffee-scriptCreole (Wiki markup) .creole creole

Rails 3.1:Release Candidate (may 2011)

RubyConf Brasil3 e 4 de Novembro www.rubyconf.com.br

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Pedro Franceschi @pedroh96

15 anosPedro Franceschi @pedroh96

Pedro Franceschi @pedroh96

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Obrigado! www.akitaonrails.com u.akita.ws/dnad11 .com.br

.NET Architects Day - DNAD 2011

by Fabio Akita on Jun 04, 2011

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.NET Architects Day - DNAD 2011 — Presentation Transcript

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