Get off to a good start with Apache Camel. This session will give you an introduction to Apache Camel and teach you: - How Camel is related to enterprise integration patterns (EIPs). - How to use EIPs in Camel routes written in Java code or XML files. - How to get started developing with Camel, including how to set up new projects from scratch using Maven and Eclipse. - With a live demo, how to build Camel applications in Java, Spring, and OSGi Blueprint. - How ready-to-use features make integration much easier. - About the web console tools that give you insight into your running Apache Camel applications, including visual route diagrams with tracing, debugging, and profiling capabilities. - Useful resources to learn more about Camel. This session will be taught with a 50/50 mix of slides and live demos, and it will conclude with Q&A time.

1. Getting started with
Apache Camel
Claus Ibsen
@davsclaus

2. 2
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

3. 3
Your Speaker
● Principal Software Engineer at Red Hat
● Apache Camel
● 6 years as committer
● Author of Camel in Action book
● Contact
● EMail: cibsen@redhat.com
● Twitter: @davsclaus
● Blog: http://davsclaus.com
● Linkedin: http://www.linkedin.com/in/davsclaus

4. 4
My Camel Story
● Starts 7 years ago
● Consultant working for Silverbullet
● POC in 2007/2008
● Looking for
● open source
● Integration framework
● As replacement for aging Integration Platform
● Apache Camel was one of the candidates

5. 5
My Camel Story
● Apache Camel 1.2 had missing parts
● .. so I had to add those missing parts

6. 6
My Camel Story
● .. to turn Camel into the lovely Camel
it could be back.
●
It was a success as our 1st
Apache Camel 1.x
integration went into production end of 2008.

7. 7
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

8. 8
What is Apache Camel?
● Quote from the website

9. 9
What is Apache Camel?
● Why do we need integration?
● Critical for your business to integrate
● Why Integration Framework?
● Framework do the heavy lifting
● You can focus on business problem
● Not "reinventing the wheel"

10. 10
What is Apache Camel?
● What is Enterprise Integration Patterns?
It's a book

11. 11
What is Apache Camel?
● Enterprise Integration Patterns
http://camel.apache.org/eip

12. 12
What is Apache Camel?
● EIP - Content Based Router

13. 13
What is Apache Camel?
from newOrder

14. 14
What is Apache Camel?
from newOrder
choice

15. 15
What is Apache Camel?
from newOrder
choice
when isWidget to widget

16. 16
What is Apache Camel?
from newOrder
choice
when isWidget to widget
otherwise to gadget

17. 17
What is Apache Camel?
from(newOrder)
choice
when(isWidget) to(widget)
otherwise to(gadget)

18. 18
What is Apache Camel?
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);

19. 19
What is Apache Camel?
Endpoint newOrder = endpoint("activemq:queue:newOrder");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget);

20. 20
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);

21. 21
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);

22. 22
What is Apache Camel?
● 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");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget)
.end();
}

23. 23
What is Apache Camel?
● 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");
from(newOrder)
.choice()
.when(isWidget).to(widget)
.otherwise().to(gadget)
.end();
}
}

24. 24
What is Apache Camel?
● Camel Java DSL
import org.apache.camel.builder.RouteBuilder;
public class MyRoute extends RouteBuilder {
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();
}
}

25. 25
What is Apache Camel?
● 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>

26. 26
What is Apache Camel?
● Endpoint as URIs
<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>
use file instead

27. 27
What is Apache Camel?
● 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>
parameters

28. 28
Standard Java or XML
● Java DSL is just Java

29. 29
Standard Java or XML
● XML DSL is just XML
● … with XSD schema for validation/tooling

30. 30
What is Apache Camel?
● Camel's Architecture

31. 31
What is Apache Camel?
150+ Components

32. 32
What is Apache Camel?
150+ Components

33. 33
What is Apache Camel?
● Summary
● Integration Framework
● Enterprise Integration Patterns (EIP)
● Routing (using DSL)
● Easy Configuration (endpoint as uri's)
● Just Java or XML code
● No Container Dependency
● A lot of components

34. 34
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

35. 35
A Little Example
● File Copier Example

36. 36
A Little Example
● File Copier Example

37. 37
A Little Example
● File Copier Example

38. 38
A Little Example
● File Copier Example

39. 39
A Little Example
● File Copier Example

40. 40
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

41. 41
Riding Camel
● Downloading Apache Camel
● zip/tarball (approx 8mb)
http://camel.apache.org

42. 42
Riding Camel
● Using Command Shell
● Requires: Apache Maven
● From Eclipse

43. 43
Riding Camel
● Console Example
● cd examples/camel-example-console
● mvn compile exec:java

44. 44
Riding Camel
● Twitter Example
● cd examples/camel-example-twitter-websocket
● mvn compile exec:java http://localhost:9090/index.html

45. 45
Riding Camel
● More examples ...
... and further details at website.
http://camel.apache.org/examples

46. 46
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

47. 47
What's in the box?

48. 48
What's in the box?
● Enterprise Integration Patterns
http://camel.apache.org/eip

49. 49
What's in the box?
● Splitter EIP

50. 50
What's in the box?
150+ Components

51. 51
What's in the box?
19 Data Formats

52. 52
What's in the box?
15 Expression Languages

53. 53
What's in the box?
4 DSL in multiple languages
● Java DSL
● XML DSL (Spring and OSGi Blueprint)
● Groovy DSL
● Scala DSL

54. 54
What's in the box?
Test Kit
● camel-test camel-test-spring
● camel-test-blueprint camel-testng

55. 55
What's in the box?
Management
● JMX
● REST (w/ Jolokia)

56. 56
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

57. 57
Deploying Camel
● Deployment Strategy
● No Container Dependency
● Lightweight & Embeddable
● Deployment Options
● Standalone
● WAR
● Spring
● JEE
● OSGi
● Cloud
Known Containers
Apache ActiveMQ
Apache Karaf
Apache ServiceMix
Apache Tomcat
Fabric8
Glassfish
JBoss AS / Wildfly
JBoss Fuse
JBoss Fuse Service Works
Jetty
WebLogic
WebSphere
Known Clouds
Amazon EC2
Google App Engine
OpenStack
OpenShift
… and many more

58. 58
Camel as a Client
● Java Client Application (no routes)
● Example
● Upload a file to a FTP server

59. 59
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

60. 60
Creating new Camel Projects
● Using Command Shell
● .. or from Eclipse

61. 61
Creating new Camel Projects
● Importing into Eclipse
Existing Maven Project

62. 62
Creating new Camel Projects
● Maven Archetypes
camel-archetype-activemq camel-archetype-java
camel-archetype-blueprint camel-archetype-scala
camel-archetype-component camel-archetype-spring
camel-archetype-dataformat camel-archetype-spring-dm
camel-archetype-groovy camel-archetype-web

63. 63
Creating new Camel Projects
● camel-archetype-spring
mvn install
mvn camel:run
mvn io.hawt:hawtio-maven-plugin:1.3.1:spring

64. 64
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

65. 65
What's not in the Camel box?
●
3rd
party Apache Camel software
● Commercial Support
● http://camel.apache.org/commercial-camel-offerings.html
● User Stories
● http://camel.apache.org/user-stories.html
● External Components
● http://camel.apache.org/components.html (bottom)
● Apache Camel Extra
● https://code.google.com/a/apache-extras.org/p/camel-extra

66. 66
What's not in the Camel box?
Tooling – Eclipse Plugin – Fuse IDE
Free community and Red Hat supported versions at:
http://tools.jboss.org/downloads/

67. 67
What's not in the Camel box?
Tooling – Web Console - hawtio
http://hawt.io

68. 68
What's not in the Camel box?
● Integration Platform - fabric8
http://fabric8.io

69. 69
Agenda
● What is Apache Camel?
● A little Example
● Riding Camel
● What's in the Camel box?
● Deploying Camel
● Creating new Camel Projects
● What's not in the Camel box?
● More Information

70. 70
Where do I get more information?
● Best Article covering what Apache Camel is
● http://java.dzone.com/articles/open-source-integration-
apache
Link to article from “Getting Started”

71. 71
Where do I get more information?
● Try Camel Examples
● http://camel.apache.org/examples.html
● Read other blogs and articles
● http://camel.apache.org/articles.html
● Use the “search box” on the Camel front page

72. 72
Where do I get more information?
● Use the mailing list / forum
● http://camel.apache.org/mailing-lists.html
● Use stackoverflow
● http://stackoverflow.com/questions/tagged/apache-camel
● Use IRC chat
● http://camel.apache.org/irc-room.html

73. 73
Where do I get more information?
● Buy the Camel in Action book
http://manning.com/ibsen/
Use code ...
camel40
… for 40% discount

74. 74
Where do I get more information?
● .. and/or any of the other Camel books in the market
http://camel.apache.org/books

75. 75
Any Questions ?
● Contact
● EMail: cibsen@redhat.com / claus.ibsen@gmail.com
● Twitter: @davsclaus
● Blog: http://davsclaus.com
● Linkedin: http://www.linkedin.com/in/davsclaus