Open source IoT gateway: Tale of Eclipse Kura, Apache Camel and Rhiot

1. Brought to you by Henryk
Konsek
Open source IoT gateway
Tale of Eclipse Kura, Apache Camel and Rhiot

2. Henryk Konsek
- engineer at Red Hat
- open source contributor
- Rhiot project founder
@hekonsek

3. Running Apache Camel in the Eclipse Kura server.
This talk
@hekonsek

4. ● Eclipse Kura
● Apache Camel
● Why Camel+Kura?
● How Camel+Kura?
This talk
@hekonsek

5. Eclipse Kura
@hekonsek

6. OSGi-based IoT gateway for field devices.
What is Eclipse Kura?
@hekonsek

7. OSGi-based IoT gateway for the field devices.
OSGi
● modularity system for Java
● provides modules classpath separation
● promotes hot runtime redeployments
What is Eclipse Kura?
OSGi Application Container (Eclipse Equinox, Concierge)
Java SE 7 / 8 (OpenJDK)
@hekonsek

8. What is Eclipse Kura?
IoT gateway
● collects messages from the edge devices (like sensors)
● performs messages processing/aggregation/forwarding
OSGi-based IoT gateway for the field devices.
OSGi Application Container (Eclipse Equinox, Concierge)
Java SE 7 / 8 (OpenJDK)
Serial GPIO HID BLE I2C Field protocols
Networking Gateway Services Web UI Remote Management
Cloud Services Data Services EP
Connectivity and Delivery
@hekonsek

9. What is Eclipse Kura?
OSGi-based IoT gateway for the field devices.
@hekonsek

10. Gateway TL;DR;
A proxy between field devices and a data center
GATEWAY
@hekonsek

11. Eclipse. Donated by Eurotech (http://eurotech.com).
Who’s behind Kura?
@hekonsek

12. Apache Camel
@hekonsek

13. A message routing framework.
What is Apache Camel?
@hekonsek

14. How to orchestrate messages flow.
What is message routing?
● Apache Camel
● Spring Integration
● Mule
@hekonsek

15. - read message from JMS queue
- transform to JSON
- save to FTP and MongoDB
Crash course to the Apache Camel
from('jms:invoices').
transform { new Invoice(uuid(), it.in.body) }.
marshal().json(Jackson).
multicast().parallelProcessing().
to('ftp:myftp.com/invoices',
'mongodb:myDb?collection=invoices&operation=save')
]
@hekonsek

16. Why Camel and Kura?
@hekonsek

17. Camel provides ~200 OSGi-ready connectors (JMS, REST, CoAP, AMQP,
MQTT…)
How can Kura benefit from Camel?
@hekonsek

18. Enterprise Integration Patterns (EIP)
How can Kura benefit from Camel?
@hekonsek

19. Prevents messages overflow.
EIP - throttler
@hekonsek

20. Provides SLA for the different channels.
EIP - throttler
@hekonsek

21. Dynamically decide where to route the message.
EIP - content based router
@hekonsek

22. Client side load balancing. Useful for field devices connectivity.
EIP - load balancer
@hekonsek

23. How can I control which parts of a field device
should be running at the given moment?
EIP - control bus
@hekonsek

24. How Camel and Kura?
@hekonsek

25. Camel OSGi bundle is started from the Kura.
Kura + Camel: architecture
@hekonsek

26. Invoke REST method every second.
Camel route module for Kura
public class MyKuraRouter extends KuraRouter {
@Override
public void configure() throws Exception {
from("timer:trigger").
to("netty4-http:http://app.mydatacenter.com/api");
}
}
@hekonsek

27. Just deploy the route as the OSGi bundle and enjoy Camel running the Kura.
Concerned about the lifecycle?
@hekonsek

28. Display WiFi networks accessible near the field device using the web
browser.
Fancy example #1
public class MyKuraRouter extends KuraRouter {
@Override
public void configure() throws Exception {
from("netty4-http:http://0.0.0.0:18080").
to("bean:org.eclipse.kura.net.NetworkService?method=getAllWifiAccessPoints");
}
}
@hekonsek

29. Start syncing cached data only when WiFi is accessible.
Fancy example #2
public class MyKuraRouter extends KuraRouter {
@Override
public void configure() throws Exception {
from("kura-wifi:wlan0/mySSID").
to("controlbus:route?routeId=onlineSync&action=start");
from("file:///var/sensor/temperature").
routeId("onlineSync").autoStartup(false).
to("netty4-http://api.mydatacenter.com");
}
}
@hekonsek

30. Loading XML Camel routes at runtime using web UI.
Routes management
@hekonsek

31. Camel will be soon a 1st class citizen in Kura.
Camel as a core part of the Kura
@hekonsek

32. http://rhiot.io
Rhiot
@hekonsek

33. Soon to be converted to Maven archetype :) .
Rhiot Kura quickstarts
@hekonsek
git clone git@github.com:rhiot/quickstarts.git
cp -r quickstarts/kura-camel kura-camel
cd kura-camel
mvn install

34. CloudService user doesn’t know that payload is dispatched to Camel.
Rhiot CamelCloudService
@hekonsek
CloudService cloudService = new DefaultCamelCloudService();
CloudClient client = cloudService.newCloudClient("appId");
// Publish message to internal in-memory Camel queue
cloudClient.publish("topic", "foo".getBytes(), 0, true, 0);
// Read message from Camel route
from("kura-cloud:appId/topic").
to("netty4-http:http://example.com");

35. Use CloudService to publish message to any endpoint supported by Camel.
Rhiot CamelCloudService
@hekonsek
CloudService cloudService = new DefaultCamelCloudService();
CloudClient client = cloudService.newCloudClient("appId");
cloudClient.publish("amqp:topic", "foo".getBytes(), 0, true, 0);

36. Thank you!
Henryk Konsek
hekonsek@gmail.com
@hekonsek