jms, websocket, and the internet of things - controlling physical devices on the real time web

© 2013 Kaazing Corporation. All Rights Reserved. 1

Controlling Physical Devices on the Real Time Web

David Witherspoon Prashant Khanal Sep 25, 2013

© 2013 Kaazing Corporation. All Rights Reserved.

About Us

§  Prashant Khanal §  Software Engineer – Kaazing §  Prashant.Khanal@kaazing.com §  Twitter: @ipras

§  David Witherspoon §  Software Engineer – Kaazing §  David.Witherspoon@kaazing.com §  Twitter: @dpwspoon

© 2013 Kaazing Corporation. All Rights Reserved.

Demo!

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Agenda

§  Requirements for the IoT

§  Creating a reference architecture for IoT

§  Live Demos, Live Demos, Live Demos

§  Source Code, Source Code, Source Code

§  WoT and IoT

© 2013 Kaazing Corporation. All Rights Reserved.

Internet of Things

Ubiquitous/Pervasive

Heterogeneous

Highly Interconnected

Event-Driven/Real Time

Identifiable Components

Always On

Scalable

Manageable

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Raspberry Pi

Image source: http://www.oracle.com/technetwork/articles/java/raspberrypi-1704896.html

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Raspberry Pi Resources

§  RaspberryPi.org

§  Wheezy (OS)

§  Oracle JVM

§  Pi4J (Raspberry Pi Java Library)

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Demo!

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Demo Setup

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Raspberry Pi Controlling the Light Directly

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Raspberry Pi Controlling the Light Directly

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Raspberry Pi Controlling the Light Directly

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Raspberry Pi Controlling the Light Directly

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Demo Setup

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Raspberry Pi Reading from a Toggle Switch

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Raspberry Pi Reading from a Toggle Switch

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Raspberry Pi Reading from a Toggle Switch

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Demo Setup

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Messaging for the IoT

§  Messaging Style

§  Interconnected / Bidirectional

§  Dynamic States (Could be on or off)

§  Messaging Protocol Requirements

§  Identity

§  Data formats

§  Transactions

§  Acknowledgments

§  And more …

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Message Systems/Protocols for the IoT

§  Java Message Service (JMS) § Standard messaging API

§ Vendor independent

§ Pub / Sub

§ Loosely Coupled

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Controlling the Light Remotely Using Pub-Sub

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Demo!

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LightJmsTcpController Using JMS to Control a Light

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LightJmsTcpController Using JMS to Control a Light

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LightJmsTcpController Using JMS to Control a Light

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LightJmsTcpController Using JMS to Control a Light

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ToggleJmsTcpListener Using JMS to Send Events

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ToggleJmsTcpListener Using JMS to Send Events

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Controlling the Light Remotely Using Pub-Sub

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Challenges with TCP

§  Isolated networks

§  Firewalls

§  Ports

§  Web browsers

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How to Extend This to the Web

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Controlling the Light Remotely Using Pub-Sub Over the Web

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HTML5 WebSocket: TCP for the Web

§  Standard Protocol (IETF): RFC-6455

§  Standard API:

§  W3C: JavaScript

§  JSR 356: Java EE

§  Single socket, full-duplex

§  Low overhead: <1% of HTTP

§  Low latency: low milliseconds

§  SSL support Full duplex

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Protocol Layering

TCP

JMS XMPP AMQP B2B FTP VNC mktdata etc

Browsers, Native Applications and IoT Devices

WebSocket Gateway

Internet

WebSocket Gateway

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Controlling the Light Remotely Using Pub-Sub Over the Web

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Demo!

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WebSocket with Brokers

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WebSocket with Brokers

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WebSocket with Brokers

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Internet of Things

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Internet of Things == Web of Things

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The Architecture

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The Web of Things

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WebSocket Powering the Web of Things

WS

WS

WS WS WS WS

WS

WS

WS

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Extending Protocols to the Web of Things

MQTT/WS

AMQP/WS

JMS/WS STOMP/WS

XMPP/WS

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Raspberry Pi Resources

§  RaspberryPi.org

§  http://www.raspberrypi.org/

§  Wheezy (OS)

§  http://www.raspberrypi.org/downloads

§  Oracle JVM on the Pi

§  http://www.oracle.com/technetwork/articles/java/raspberrypi-1704896.html

§  Pi4J (Raspberry Pi Java Library)

§  http://pi4j.com/

© 2013 Kaazing Corporation. All Rights Reserved.

Find Out More

§  The Zinger – Blog: §  http://blog.kaazing.com

§  HTML5 Developer Conference §  October 22-23, 2013, San Francisco, Moscone North

§  JMS WebSocket Tutorial §  http://tutorial.kaazing.com

§  More developer content §  http://developer.kaazing.com

§  RC Car / Light and Switch Code §  https://github.com/dpwspoon/kaazingPi

§  The Definitive Guide to HTML5 WebSocket, (Apress, 2013) §  First comprehensive guide on WebSocket

§  Use WSK214 for 40% of the e-book

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© 2013 Kaazing Corporation. All Rights Reserved.

© 2013 Kaazing Corporation. All Rights Reserved.

The End