Building Real-Time Enterprise Applications for the Internet of Things

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This document appears to be a presentation about connecting Internet of Things (IoT) devices using messaging protocols like Java Message Service (JMS) over WebSocket. It includes demos of controlling a light connected to a Raspberry Pi device using JMS over TCP and over the web using WebSocket. It discusses challenges with directly using TCP for IoT and how WebSocket can help extend messaging to the web and browsers. The presentation source code used in the demos is also made available.

David Witherspoon
Prashant Khanal
Oct 30, 2013

© 2013 Kaazing Corporation. All Rights Reserved.

1

About Us

§ 
§ 
§ 
§ 

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

© 2013 Kaazing Corporation. All Rights Reserved.

§ 
§ 
§ 
§ 

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

Demo!

© 2013 Kaazing Corporation. All Rights Reserved.

Agenda

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Requirements for the IoT

§ 

Creating a reference architecture for IoT

§ 

Live Demos, Live Demos, Live Demos

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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

© 2013 Kaazing Corporation. All Rights Reserved.

Raspberry Pi

Image source: http://www.oracle.com/technetwork/articles/java/raspberrypi-1704896.html
© 2013 Kaazing Corporation. All Rights Reserved.

Demo Setup

© 2013 Kaazing Corporation. All Rights Reserved.

Raspberry Pi Controlling the Light Directly

© 2013 Kaazing Corporation. All Rights Reserved.

Message Systems/Protocols for the IoT

§  Java

Message Service (JMS)

§  Standard
§  Vendor
§  Pub

messaging API

independent

/ Sub

§  Loosely

Coupled

© 2013 Kaazing Corporation. All Rights Reserved.

Controlling the Light Remotely Using Pub-Sub

© 2013 Kaazing Corporation. All Rights Reserved.

LightJmsTcpController Using JMS to Control a Light

© 2013 Kaazing Corporation. All Rights Reserved.

ToggleJmsTcpListener Using JMS to Send Events

© 2013 Kaazing Corporation. All Rights Reserved.

Challenges with TCP

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Isolated networks

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Ports

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Firewalls

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Web browsers

© 2013 Kaazing Corporation. All Rights Reserved.

How to Extend This to the Web

© 2013 Kaazing Corporation. All Rights Reserved.

Controlling the Light Remotely Using Pub-Sub Over the Web

© 2013 Kaazing Corporation. All Rights Reserved.

HTML5 WebSocket: TCP for the Web

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Standard Protocol (IETF): RFC-6455

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Standard API:
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W3C: JavaScript

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Java, iOS, Android, Flash, .NET/Silverlight

§ 

Single socket, full-duplex

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Low overhead: <1% of HTTP

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Low latency: low milliseconds

§ 

SSL support
Full duplex

© 2013 Kaazing Corporation. All Rights Reserved.

Protocol Layering

Browsers, Native Applications and IoT Devices
JMS

XMPP

AMQP

B2B

FTP

VNC

TCP

Internet

WebSocket
Gateway

© 2013 Kaazing Corporation. All Rights Reserved.

WebSocket
Gateway

mktdata

etc

WebSocket with Brokers

© 2013 Kaazing Corporation. All Rights Reserved.

The Architecture

© 2013 Kaazing Corporation. All Rights Reserved.

WebSocket Powering the Web of Things

WS

WS

WS

WS
WS

WS
WS

© 2013 Kaazing Corporation. All Rights Reserved.

WS

WS

Extending Protocols to the Web of Things

XMPP/WS
MQTT/WS

AMQP/WS

STOMP/WS
JMS/WS

© 2013 Kaazing Corporation. All Rights Reserved.

Find Out More

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The Zinger – Blog:
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§ 

JMS WebSocket Tutorial
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§ 

http://developer.kaazing.com

RC Car / Light and Switch Code
§ 

§ 

http://tutorial.kaazing.com

More developer content
§ 

§ 

http://blog.kaazing.com

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

© 2013 Kaazing Corporation. All Rights Reserved.

38

© 2013 Kaazing Corporation. All Rights Reserved.

The End

© 2013 Kaazing Corporation. All Rights Reserved.

JMS is widely used behind enterprise firewalls to build loosely coupled distributed systems. This session discusses how JMS can be extended and applied to an always connected Web and mobile environment to provide interactivity and collaboration by controlling physical objects, such as model cars, remotely. You’ll learn how you can connect an HTML5 client running on the Web browser of a smartphone and Java running on a Raspberry Pi, a credit-card-size computer, in real time, using open industry-standard Web technologies. The presentation features several live demonstrations of the concepts discussed throughout the session. Presentation given by David Witherspoon and Prashant Khanal on Sep 25, 2013 at JavaOne in San Francisco.

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2. About Us §  §  §  §  Prashant Khanal Software Engineer – Kaazing Prashant.Khanal@kaazing.com Twitter: @ipras © 2013 Kaazing Corporation. All Rights Reserved. §  §  §  §  David Witherspoon Software Engineer – Kaazing David.Witherspoon@kaazing.com Twitter: @dpwspoon

4. 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.

5. Internet of Things Ubiquitous/Pervasive Heterogeneous Highly Interconnected Event-Driven/Real Time Identifiable Components Always On Scalable Manageable © 2013 Kaazing Corporation. All Rights Reserved.

15. Message Systems/Protocols for the IoT §  Java Message Service (JMS) §  Standard §  Vendor §  Pub messaging API independent / Sub §  Loosely Coupled © 2013 Kaazing Corporation. All Rights Reserved.

28. HTML5 WebSocket: TCP for the Web §  Standard Protocol (IETF): RFC-6455 §  Standard API: §  W3C: JavaScript §  Java, iOS, Android, Flash, .NET/Silverlight §  Single socket, full-duplex §  Low overhead: <1% of HTTP §  Low latency: low milliseconds §  SSL support Full duplex © 2013 Kaazing Corporation. All Rights Reserved.

29. Protocol Layering Browsers, Native Applications and IoT Devices JMS XMPP AMQP B2B FTP VNC TCP Internet WebSocket Gateway © 2013 Kaazing Corporation. All Rights Reserved. WebSocket Gateway mktdata etc

38. Find Out More §  The Zinger – Blog: §  §  JMS WebSocket Tutorial §  §  http://developer.kaazing.com RC Car / Light and Switch Code §  §  http://tutorial.kaazing.com More developer content §  §  http://blog.kaazing.com 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 © 2013 Kaazing Corporation. All Rights Reserved. 38

Building Real-Time Enterprise Applications for the Internet of Things

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