getting started with apache camel at devnation 2014
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Getting started with
Apache Camel
Claus Ibsen
@davsclaus
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
Your Speaker
Principal Software Engineer at Red Hat
Apache Camel6 years as committer
Author of Camel in Action book
ContactEMail: [email protected]
Twitter: @davsclaus
Blog: http://davsclaus.com
Linkedin: http://www.linkedin.com/in/davsclaus
My Camel Story
Starts 7 years ago
Consultant working for Silverbullet
POC in 2007/2008
Looking foropen source
Integration framework
As replacement for aging Integration Platform
Apache Camel was one of the candidates
My Camel Story
Apache Camel 1.2 had missing parts
.. so I had to add those missing parts
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.
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
What is Apache Camel?
Quote from the website
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"
What is Apache Camel?
What is Enterprise Integration Patterns?
It's a book
What is Apache Camel?
Enterprise Integration Patterns
http://camel.apache.org/eip
What is Apache Camel?
EIP - Content Based Router
What is Apache Camel?
from newOrder
What is Apache Camel?
from newOrder choice
What is Apache Camel?
from newOrder choice when isWidget to widget
What is Apache Camel?
from newOrder choice when isWidget to widget otherwise to gadget
What is Apache Camel?
from(newOrder) choice when(isWidget) to(widget) otherwise to(gadget)
What is Apache Camel?
from(newOrder) .choice() .when(isWidget).to(widget) .otherwise().to(gadget);
What is Apache Camel?
Endpoint newOrder = endpoint("activemq:queue:newOrder");
from(newOrder) .choice() .when(isWidget).to(widget) .otherwise().to(gadget);
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);
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);
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(); }
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(); }}
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(); }}
What is Apache Camel?
Camel XML DSL
/order/product = 'widget'
What is Apache Camel?
Endpoint as URIs
/order/product = 'widget'
use file instead
What is Apache Camel?
Endpoint as URIs
/order/product = 'widget'
parameters
Standard Java or XML
Java DSL is just Java
Standard Java or XML
XML DSL is just XML
with XSD schema for validation/tooling
What is Apache Camel?
Camel's Architecture
What is Apache Camel?
150+ Components
What is Apache Camel?
150+ Components
What is Apache Camel?
SummaryIntegration 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
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
A Little Example
File Copier Example
A Little Example
File Copier Example
A Little Example
File Copier Example
A Little Example
File Copier Example
A Little Example
File Copier Example
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
Riding Camel
Downloading Apache Camelzip/tarball (approx 8mb)
http://camel.apache.org
Riding Camel
Using Command ShellRequires: Apache Maven
From Eclipse
Riding Camel
Console Example
cd examples/camel-example-console
mvn compile exec:java
Riding Camel
Twitter Example
cd examples/camel-example-twitter-websocket
mvn compile exec:java
http://localhost:9090/index.html
Riding Camel
More examples ...
... and further details at website.
http://camel.apache.org/examples
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
What's in the box?
What's in the box?
Enterprise Integration Patterns
http://camel.apache.org/eip
What's in the box?
Splitter EIP
What's in the box?
150+ Components
What's in the box?
19 Data Formats
What's in the box?
15 Expression Languages
What's in the box?
4 DSL in multiple languagesJava DSL
XML DSL (Spring and OSGi Blueprint)
Groovy DSL
Scala DSL
What's in the box?
Test Kitcamel-testcamel-test-spring
camel-test-blueprintcamel-testng
What's in the box?
ManagementJMX
REST (w/ Jolokia)
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
Deploying Camel
Deployment StrategyNo Container Dependency
Lightweight & Embeddable
Deployment OptionsStandalone
WAR
Spring
JEE
OSGi
Cloud
Known ContainersApache ActiveMQApache KarafApache ServiceMixApache TomcatFabric8GlassfishJBoss AS / WildflyJBoss FuseJBoss Fuse Service WorksJettyWebLogicWebSphere
Known CloudsAmazon EC2Google App EngineOpenStackOpenShift
and many more
Camel as a Client
Java Client Application (no routes)
ExampleUpload a file to a FTP server
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
Creating new Camel Projects
Using Command Shell
.. or from Eclipse
Creating new Camel Projects
Importing into Eclipse
Existing Maven Project
Creating new Camel Projects
Maven Archetypes
camel-archetype-activemqcamel-archetype-java
camel-archetype-blueprintcamel-archetype-scala
camel-archetype-componentcamel-archetype-spring
camel-archetype-dataformatcamel-archetype-spring-dm
camel-archetype-groovycamel-archetype-web
Creating new Camel Projects
camel-archetype-spring
mvn installmvn camel:runmvn io.hawt:hawtio-maven-plugin:1.3.1:spring
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
What's not in the Camel box?
3rd party Apache Camel software
Commercial Supporthttp://camel.apache.org/commercial-camel-offerings.html
User Storieshttp://camel.apache.org/user-stories.html
External Componentshttp://camel.apache.org/components.html (bottom)
Apache Camel Extrahttps://code.google.com/a/apache-extras.org/p/camel-extra
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/
What's not in the Camel box?
Tooling Web Console - hawtio
http://hawt.io
What's not in the Camel box?
Integration Platform - fabric8
http://fabric8.io
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
Where do I get more information?
Best Article covering what Apache Camel ishttp://java.dzone.com/articles/open-source-integration-apache
Link to article from Getting Started
Where do I get more information?
Try Camel Exampleshttp://camel.apache.org/examples.html
Read other blogs and articleshttp://camel.apache.org/articles.html
Use the search box on the Camel front page
Where do I get more information?
Use the mailing list / forumhttp://camel.apache.org/mailing-lists.html
Use stackoverflowhttp://stackoverflow.com/questions/tagged/apache-camel
Use IRC chathttp://camel.apache.org/irc-room.html
Where do I get more information?
Buy the Camel in Action book
http://manning.com/ibsen/
Use code ...camel40 for 40% discount
Where do I get more information?
.. and/or any of the other Camel books in the market
http://camel.apache.org/books
Any Questions ?
ContactEMail: [email protected] / [email protected]
Twitter: @davsclaus
Blog: http://davsclaus.com
Linkedin: http://www.linkedin.com/in/davsclaus
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