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Domando a Programação Reativa com Vert.x Eder Ignatowicz Senior Software Engineer @ederign

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“Now, every company is a software company” — Forbes

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INSERT DESIGNATOR, IF NEEDED (EDIT ON MASTER SLIDE) Join developers.redhat.com 3

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Reactive Systems

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Responsive

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Resilient

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Elastic

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Message Driven

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Responsive Message Driven Elastic Resilient Reactive Systems

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Vert.x

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Application Platform

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Runs on JVM

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Asynchronous APIs

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Polyglot

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Simple

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Why?

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APIs

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Hello World

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Verticles

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Join developers.redhat.com 20 public class HelloWorldVerticle extends AbstractVerticle { … @Override public void start( Future fut ) { vertx.setPeriodic( 1000, l -> { vertx.eventBus() .publish( "hello-bus", new JsonObject( Json.encodePrettily( new Message( "HelloWorld Message: " + new Date() ))));} ); vertx.eventBus() .consumer( "hello-bus", m -> { JsonObject json = ( JsonObject ) m.body(); logger.info( "Receiving " + json.getString( "id" ) + " : " + json.getString( "name" ) );} ); } }

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Threading Model Event Loops

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Event Loops vs Blocking APIs

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Hybrid Threading Model

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Scaling

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Distributed Event Bus

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Extended to the browser

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Demo

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System 1 … System n OpenShift R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in Processor Verticle system.process.in system.process.out.x system.process.out.no_system Audit Verticle system.process.out.x system.process.out.no_system External System processing JS Bridge Verticle system.process.out.x system.process.in system.process.out.x system.process.in Log Verticle system.process.in

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System 1 … System n R E S T A P I OpenShift

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System 1 … System n R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in OpenShift

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System 1 … System n R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in Processor Verticle system.process.in system.process.out.x system.process.out.no_system OpenShift

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System 1 … System n R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in Processor Verticle system.process.in system.process.out.x system.process.out.no_system Audit Verticle system.process.out.x system.process.out.no_system External System processing OpenShift

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System 1 … System n R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in Processor Verticle system.process.in system.process.out.x system.process.out.no_system Audit Verticle system.process.out.x system.process.out.no_system External System processing JS Bridge Verticle system.process.out.x system.process.in system.process.out.x system.process.in OpenShift

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System 1 … System n R E S T A P I Vert.x Cluster R E S T C L I E N T Distributed Event Bus system.process.in Processor Verticle system.process.in system.process.out.x system.process.out.no_system Audit Verticle system.process.out.x system.process.out.no_system External System processing JS Bridge Verticle system.process.out.x system.process.in system.process.out.x system.process.in Log Verticle system.process.in OpenShift

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Join developers.redhat.com @ederign

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plus.google.com/+RedHat linkedin.com/company/red-hat youtube.com/user/RedHatVideos facebook.com/redhatinc twitter.com/RedHatNews Thank you!