Meet{cast}

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Paolo PatiernoSenior Software Engineer (Messaging & IoT) @ Red Hat

@ppatierno

Reactive Internet of Things : the Vert.x way

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Senior Software Engineer @ Red HatMessaging & IoT team

Microsoft MVPEmbedded & IoT ( I like to call it in this way )

Eclipse committerHono (lead as well)Paho

I love everything is open code, standards, protocols, even pizza, running, MotoGP :-)

Who am I ?

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What is Vert.x ?Vert.x IoT enabled components

MQTT serverAMQP ProtonKafka client

Use casesEclipse HonoEnMasse

Agenda

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Vert.x is a toolkit ... for building distributed and reactive applications ... running on a JVM ... using an asynchronous non-blocking model and its polyglot !

What is Vert.x

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Vert.x (Core) is just a JARVert.x components are just JARsYour application has just some JAR dependencies (classpath,

fat-jar, ...)

Toolkit

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Different (micro)services inside your network which ...is not reliablehas a latencyhas a finite bandwidth

The topology can changeBe prepared to fail !

Distributed

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Responsive : respond in a acceptable timeElastic : scale up and downResilient : designed to handle failures gracefullyMessage driven : interact using asynchronous messages

http://www.reactivemanifesto.org

Reactive

responsive

elastic resilient

messagedriven

http://www.reactivemanifesto.org/

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JavaGroovyRubyJavaScript (Nashorn)CeylonKotlinScala

Polyglot

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The Event Loop

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Multiple Event Loops

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Non blocking I/O vs blocking

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Scalability

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A piece of code that can be deployed by Vert.xSimilarities with the Actor Model, where you can think a

verticle as an actorVerticles communicate using an event busThey are optional

Verticles

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Communication system within Vert.xDifferent components can communicate using it ...

sending and receiving messages (one way, request/reply, publish/subscribe)

whatever the language is (polyglot)wherever they run (even not on Vert.x, thanks to bridges)

Main topics :message : with a body and headers, JSON encodedaddress : messages are sent to an addresshandler : messages are received by handlers

Event Bus

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Event Bus

point to pointpublish/subscribe

request/reply

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Event Bus

clustered

bridges

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An IoT solution is distributed by natureHaving a toolkit means using only what you need in each

pieceIoT applications need to be reactive

responsive, elastic scale, reliable and asynchronousDifferent teams (or companies ?) ...

with different know-how need to be polyglot

Vert.x & the Internet of Things

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Its not a broker !Provides a server for

handling connection requests from remote MQTT clientshandling all the communication, encoding/decoding on the wirehandling message exchanges as defined by the protocol (3.1.1)

The API provides :events raised when raw protocol messages are receivedmethods for sending messages to remote clients

MQTT server

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Provides a wrapper around Apache Qpid Proton AMQP 1.0 protocol engine

The API provides : client for connecting to an AMQP 1.0 server/brokerhandling of sessions and links inside a connectionsend/receive messages, flow control all great AMQP 1.0 stuff :-)server for accepting connections from AMQP 1.0 clients

AMQP Proton

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Provides a Kafka client for reading/sending messages from/to an Apache Kafka cluster

The API provides : subscribing to a topic as part of a consumer groupassigning specific topic partitionsending messages to a topicusing a shared producer

Kafka client

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Tailored general messaging for IoT solutionsProvide messaging APIs for common operationsSupport multiple IoT protocols (MQTT, AMQP, HTTP, LWM2M,...)Support different underlying messaging infrastracture :

Qpid Dispatch Router + ActiveMQ ArtemisJMSEnMasseKafkaRabbitMQ

Eclipse Hono

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IoT messaging APIs telemetry : used by devices to send data downstreamdevice registration : register, deregister and get information about

devicesevent : used by devices to send events downstream (i.e. alarms, ...)command & control : used by business applications to send

commands to devicesIoT protocol adapters

HTTP RESTMQTT

Scalable messaging architecture

Eclipse Hono

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Eclipse Hono and Vert.x ?

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A MaaS (Message as a Service) platformElastic scale messaging based on Qpid Dispatch Router and Artemis

running on OpenShiftSupport different communication patterns

store and forward : queue & topic/subscriptionsdirect messaging : anycast & multicast

Support different protocolsAMQP 1.0, MQTT, HTTP, Stomp

Multitenancy

EnMasse

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EnMasse

addresscontroller

ragent

configserv

queuescheduler

mqttgateway

mqttlwt

subserv

messaging mqtt-gateway

mqtt-lwt

subscriptionmyqueue mytopic

admin

clientsapplication developer

OpenShiftservices

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Target IoT Platform

Linux containers, Kubernetes, OpenShift

BrokerBroker

AM

QP

-Kaf

kaAdapters

AM

QP

-Spa

rk

Adapters

AMQP

MQTT, HTTP, CoAP,

AMQP

MQTT, HTTP, CoAP,

DispatchRouter

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Vert.x : http://vertx.ioVert.x MQTT server : https://github.com/vert-x3/vertx-mqtt-server Vert.x AMQP Proton : https://github.com/vert-x3/vertx-proton Vert.x Kafka client : https://github.com/vert-x3/vertx-kafka-client Eclipse Hono : https://www.eclipse.org/hono/ EnMasse : https://github.com/EnMasseProject ActiveMQ Artemis : https://activemq.apache.org/artemis/ Qpid Dispatch Router : http://qpid.apache.org/components/dispatch-router/ Apache Kafka : https://kafka.apache.org/AMQP-Kafka bridge : https://github.com/EnMasseProject/amqp-kafka-bridge Paolo Patiernos blog : https://paolopatierno.wordpress.com/ :-)

Resources

http://vertx.io/https://github.com/vert-x3/vertx-mqtt-serverhttps://github.com/vert-x3/vertx-protonhttps://github.com/vert-x3/vertx-kafka-clienthttps://www.eclipse.org/hono/https://github.com/EnMasseProjecthttps://activemq.apache.org/artemis/http://qpid.apache.org/components/dispatch-router/https://kafka.apache.org/https://github.com/EnMasseProject/amqp-kafka-bridgehttps://paolopatierno.wordpress.com/

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If you like Vert.x !If you are a student !Google Summer of Code ideas using Vert.x : http://vertx.io/gsoc/

Google Summer of Code

http://vertx.io/gsoc/

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Thanks !

ppatierno

Slide 1OverviewBrainstorming ObjectivesRulesSlide 5Brainstorming ActivitySummarizeNext StepsSlide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29