In this session will teach you how to get a good start with Apache Camel. We will introduce you to Apache Camel and how Camel its related to Enterprise Integration Patterns. And how you go about using these patterns in Camel routes, written in Java code or XML files. We will then discuss how you can get started developing with Camel, and how to setup new projects from scratch using Maven and Eclipse tooling. This session includes live demos that show how to build Camel applications in Java, Spring, OSGi Blueprint and alternative languages such as Scala and Groovy. You will also hear what other features Camel provides out of the box, which can make integration much easier for you. We also take a moment to look at hawtio, then hot new web console tooling that allows you to get insight into your running Apache Camel applications, which has among others visual route diagrams with tracing/debugging and profiling capabilities. Before opening up for QA, we will share useful links where you can dive into learning more about Camel.

1. Getting started with Apache Camel
Claus Ibsen (@davsclaus)
Principal Software Engineer, Red Hat
jdays.se, november 2013
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PUBLIC PRESENTATION | CLAUS IBSEN

2. Your Speaker
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Principal Software Engineer at Red Hat
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Apache Camel
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5 years working full-time with Camel
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Author of Camel in Action book
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Contact
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Twitter: @davsclaus
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Linkedin: davsclaus
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EMail: cibsen@redhat.com
Blog: http://davsclaus.com
PUBLIC PRESENTATION | CLAUS IBSEN

3. Agenda
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A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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What is Apache Camel?
Q and A
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4. What is Apache Camel?
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Quote from the website
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5. What is Apache Camel?
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Why do we need integration?
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Critical for your business to integrate
Why Integration Framework?
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You can focus on business problem
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Framework do the heavy lifting
Not "reinventing the wheel"
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6. What is Apache Camel?
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What is Enterprise Integration Patterns?
It's a book
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7. What is Apache Camel?
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Enterprise Integration Patterns
http://camel.apache.org/eip
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8. What is Apache Camel?
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EIP - Content Based Router
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9. What is Apache Camel?
from newOrder
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10. What is Apache Camel?
from newOrder
choice
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11. What is Apache Camel?
from newOrder
choice
when isWidget to widget
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12. What is Apache Camel?
from newOrder
choice
when isWidget to widget
otherwise to gadget
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13. What is Apache Camel?
from(newOrder)
choice
when(isWidget) to(widget)
otherwise to(gadget)
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14. What is Apache Camel?
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);
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15. What is Apache Camel?
Endpoint newOrder = endpoint("activemq:queue:newOrder");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);
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16. What is Apache Camel?
Endpoint newOrder = endpoint("activemq:queue:newOrder");
Predicate isWidget = xpath("/order/product = 'widget'");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);
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17. What is Apache Camel?
Endpoint newOrder = endpoint("activemq:queue:newOrder");
Predicate isWidget = xpath("/order/product = 'widget'");
Endpoint widget = endpoint("activemq:queue:widget");
Endpoint gadget = endpoint("activemq:queue:gadget");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);
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18. What is Apache Camel?
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Java Code
public void configure() throws Exception {
Endpoint newOrder = endpoint("activemq:queue:newOrder");
Predicate isWidget = xpath("/order/product = 'widget'");
Endpoint widget = endpoint("activemq:queue:widget");
Endpoint gadget = endpoint("activemq:queue:gadget");
}
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from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget)
.end();
PUBLIC PRESENTATION | CLAUS IBSEN

19. What is Apache Camel?
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Java Code
import org.apache.camel.Endpoint;
import org.apache.camel.Predicate;
import org.apache.camel.builder.RouteBuilder;
public class MyRoute extends RouteBuilder {
public void configure() throws Exception {
Endpoint newOrder = endpoint("activemq:queue:newOrder");
Predicate isWidget = xpath("/order/product = 'widget'");
Endpoint widget = endpoint("activemq:queue:widget");
Endpoint gadget = endpoint("activemq:queue:gadget");
}
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}
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget)
.end();
PUBLIC PRESENTATION | CLAUS IBSEN

20. What is Apache Camel?
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Camel Java DSL
import org.apache.camel.builder.RouteBuilder;
public class MyRoute extends RouteBuilder {
}
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public void configure() throws Exception {
from("activemq:queue:newOrder")
.choice()
.when(xpath("/order/product = 'widget'"))
.to("activemq:queue:widget")
.otherwise()
.to("activemq:queue:gadget")
.end();
}
PUBLIC PRESENTATION | CLAUS IBSEN

21. What is Apache Camel?
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Camel XML DSL
<route>
<from uri="activemq:queue:newOrder"/>
<choice>
<when>
<xpath>/order/product = 'widget'</xpath>
<to uri="activemq:queue:widget"/>
</when>
<otherwise>
<to uri="activemq:queue:gadget"/>
</otherwise>
</choice>
</route>
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22. What is Apache Camel?
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Endpoint as URIs
use file instead
<route>
<from uri="file:inbox/orders"/>
<choice>
<when>
<xpath>/order/product = 'widget'</xpath>
<to uri="activemq:queue:widget"/>
</when>
<otherwise>
<to uri="activemq:queue:gadget"/>
</otherwise>
</choice>
</route>
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23. What is Apache Camel?
parameters
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Endpoint as URIs
<route>
<from uri="file:inbox/orders?delete=true"/>
<choice>
<when>
<xpath>/order/product = 'widget'</xpath>
<to uri="activemq:queue:widget"/>
</when>
<otherwise>
<to uri="activemq:queue:gadget"/>
</otherwise>
</choice>
</route>
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24. What is Apache Camel?
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Camel's Architecture
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25. What is Apache Camel?
120+ Components
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26. What is Apache Camel?
120+ Components
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27. What is Apache Camel?
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Summary
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Enterprise Integration Patterns (EIP)
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Routing (using DSL)
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Easy Configuration (endpoint as uri's)
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No Container Dependency
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Integration Framework
A lot of components
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28. Agenda
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What is Apache Camel?
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A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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Q and A
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29. A Little Example
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File Copier Example
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30. A Little Example
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File Copier Example
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31. A Little Example
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File Copier Example
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32. A Little Example
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File Copier Example
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33. A Little Example
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File Copier Example
PUBLIC PRESENTATION | CLAUS IBSEN

34. Agenda
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What is Apache Camel?
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A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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Q and A
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PUBLIC PRESENTATION | CLAUS IBSEN

35. Riding Camel
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Downloading Apache Camel
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zip/tarball (approx 8mb)
http://camel.apache.org
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36. Riding Camel
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Using Command Shell
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Requires:
Apache Maven
From Eclipse
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37. Riding Camel
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Console Example
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cd examples/camel-example-console
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mvn compile exec:java
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38. Riding Camel
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Twitter Example
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cd examples/camel-example-twitter-websocket
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mvn compile exec:java
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http://localhost:9090/index.html
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39. Riding Camel
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More examples ...
... and further details at website.
http://camel.apache.org/examples
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40. Agenda
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What is Apache Camel?
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A little Example
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Riding Camel
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What's in the box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
●
Q and A
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PUBLIC PRESENTATION | CLAUS IBSEN

41. What's in the box?
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42. What's in the box?
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Enterprise Integration Patterns
http://camel.apache.org/eip
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43. What's in the box?
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Splitter EIP
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44. What is Apache Camel?
120+ Components
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45. What is Apache Camel?
19 Data Formats
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46. What is Apache Camel?
15 Expression Languages
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47. What is Apache Camel?
5+ DSL in multiple languages
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XML DSL (Spring and OSGi Blueprint)
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Groovy DSL
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Scala DSL
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Java DSL
Kotlin DSL (work in progress)
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48. What is Apache Camel?
Test Kit
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camel-test-spring
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camel-test
camel-test-blueprint
camel-testng
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49. What is Apache Camel?
Management
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JMX
REST (w/ Jolokia)
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50. What is Apache Camel?
Tooling – Web console - HawtIO
http://hawt.io
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51. What is Apache Camel?
Tooling – Eclipse Plugin – Fuse IDE
http://github.com/fusesource/fuseide
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52. What is Apache Camel?
Error Handling
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53. What is Apache Camel?
try .. catch style
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54. What is Apache Camel?
Dead Letter Channel (EIP style)
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55. Agenda
●
What is Apache Camel?
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A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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Q and A
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56. Deploying Camel
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Deployment Strategy
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No Container Dependency
Lightweight & Embeddable
Deployment Options
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WAR
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Spring
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JEE
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OSGi
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Standalone
Cloud
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57. Camel as a Client
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Java Client Application (no routes)
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Example
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Upload a file to a FTP server
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58. Agenda
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What is Apache Camel?
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A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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Q and A
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59. Creating new Camel Projects
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Using Command Shell
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From Eclipse
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60. Creating new Camel Projects
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Maven Archetypes
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61. Creating new Camel Projects
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camel-archetype-blueprint
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62. Creating new Camel Projects
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Importing into Eclipse
Existing Maven Project
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63. Agenda
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What is Apache Camel?
●
A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
●
Q and A
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64. Hawtio – Camel Tooling
http://hawt.io
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65. Agenda
●
What is Apache Camel?
●
A little Example
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Riding Camel
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What's in the Camel box?
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Deploying Camel
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Creating new Camel Projects
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Hawtio – Camel Tooling
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Q and A
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66. Where do I get more information?
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Best Article covering what Apache Camel is
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http://java.dzone.com/articles/open-source-integrationapache
Link to article from “Getting Started”
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67. Where do I get more information?
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Try Camel Examples
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Read other blogs and articles
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http://camel.apache.org/examples.html
http://camel.apache.org/articles.html
Use the “search box” on the Camel front page
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68. Where do I get more information?
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Use the mailing list / forum
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Use stackoverflow
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http://camel.apache.org/mailing-lists.html
http://stackoverflow.com/questions/tagged/apache-camel
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69. Where do I get more information?
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Buy the Camel in Action book
Use code ...
camel40
… for 40% discount
http://manning.com/ibsen/
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70. Any Questions ?
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Contact
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EMail: cibsen@redhat.com
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Twitter: @davsclaus
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Linkedin: davsclaus
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Blog: http://davsclaus.com
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