Getting started with Apache Camel presentation at BarcelonaJUG, january 2014

Getting Started with Apache Camel.Presentation and Workshop at BarcelonaJUG, January 2014

Claus Ibsen (@davsclaus)Principal Software Engineer, Red Hat

Agenda

History of Camel

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 working with Camel

Author of Camel in Action book

ContactEMail: [email protected]

Twitter: @davsclaus

Blog: http://davsclaus.com

Linkedin: http://www.linkedin.com/in/davsclaus

Why the name Camel?

Why the name Camel?

Because Camel is
easy to remember and type ...

Why the name Camel?

or the creator used to smoke cigarets!

http://camel.apache.org/why-the-name-camel.html

Camel's parents

Camel's parents

James Strachan (creator of Camel)
Gregor Hohpe (author of EIP book)

The birth of Camel

First Commit

The birth of Camel

My first Commit

The birth of Camel

First ReleaseApache Camel 1.0
June 2007

http://www.davsclaus.com/2012/05/looking-at-impressive-first-apache.html

Agenda

History of Camel


A little Example

Riding Camel


Deploying Camel



More Information


Quote from the website


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 Enterprise Integration Patterns?

It's a book


Enterprise Integration Patterns

http://camel.apache.org/eip


EIP - Content Based Router


from newOrder


from newOrder choice


from newOrder choice when isWidget to widget


from newOrder choice when isWidget to widget otherwise to gadget


from(newOrder) choice when(isWidget) to(widget) otherwise to(gadget)


from(newOrder) .choice() .when(isWidget).to(widget) .otherwise().to(gadget);


Endpoint newOrder = endpoint("activemq:queue:newOrder");



Endpoint newOrder = endpoint("activemq:queue:newOrder");Predicate isWidget = xpath("/order/product = 'widget'");



Endpoint newOrder = endpoint("activemq:queue:newOrder");Predicate isWidget = xpath("/order/product = 'widget'");Endpoint widget = endpoint("activemq:queue:widget");Endpoint gadget = endpoint("activemq:queue:gadget");



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(); }


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(); }}


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(); }}


Camel XML DSL

/order/product = 'widget'


Endpoint as URIs


use file instead


Endpoint as URIs


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


Camel's Architecture


150+ Components


150+ Components


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

History of Camel


A little Example

Riding Camel


Deploying Camel



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

History of Camel


A little Example

Riding Camel


Deploying Camel



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

History of Camel


A little Example

Riding Camel

What's in the box?

Deploying Camel



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?

Pipes and Filters EIP

What's in the box?

Pipes and Filters EIP

What's in the box?

Recipient List EIP

What's in the box?

Recipient List 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?

5+ DSL in multiple languagesJava DSL

XML DSL (Spring and OSGi Blueprint)

Groovy DSL

Scala DSL

Kotlin DSL (work in progress)

What's in the box?

Mixing Java and XML

Java DSL

Spring XML file

What's in the box?

Mixing Java and XML.. having both XML and Java routes

Java routeXML route

What's in the box?

Multiple XML files

myCoolRoutes.xml

myOtherCoolRoutes.xml

myCamel.xml

What's in the box?

Scanning on classpath for Java routes with packageScan

supports excludes/includes

What's in the box?

Scanning Spring ApplicationContext for Java routes with

What's in the box?

Scanning Spring ApplicationContext for Java routes and routes uses @Component

What's in the box?

Type Converters

What's in the box?

Writing Custom Type Converter

What's in the box?

Bean as Message Translator

What's in the box?

Bean as Message Translator

What's in the box?

Working with beans

What's in the box?

Working with beans

What's in the box?

Working with beans

What's in the box?

Working with beans

What's in the box?

Test Kitcamel-testcamel-test-spring

camel-test-blueprintcamel-testng

What's in the box?

ManagementJMX

REST (w/ Jolokia)

What's in the box?

Error Handling

What's in the box?

try .. catch style

What's in the box?

Dead Letter Channel (EIP style)

What's in the box?

Dead Letter Channel (EIP style)

What's in the box?

The RestInterceptors

Security

Route Policy

Type Converters

TransactionCompensation as rollback

Asynchronous non-blocking routing engine

Thread management

Maven Tooling

... and much more

Agenda

History of Camel


A little Example

Riding Camel


Deploying Camel



More Information

Deploying Camel

Deployment StrategyNo Container Dependency

Lightweight & Embeddable

Deployment OptionsStandalone

WAR

Spring

JEE

OSGi

Cloud

Camel as a Client

Java Client Application (no routes)

ExampleUpload a file to a FTP server

Agenda

History of Camel


A little Example

Riding Camel


Deploying Camel



More Information


Using Command Shell

From Eclipse


Maven Archetypes


camel-archetype-blueprint


Importing into Eclipse

Existing Maven Project


Testing Camel Projects

... from inside Eclipse

Agenda

History of Camel


A little Example

Riding Camel


Deploying Camel



More Information


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


Tooling Eclipse Plugin Fuse IDE

http://github.com/fusesource/fuseide


Tooling Web console - HawtIO

http://hawt.io


Integration Platform

http://fabric8.io

Agenda

History of Camel


A little Example

Riding Camel


Deploying Camel



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


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


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


Buy the Camel in Action book

http://manning.com/ibsen/

Use code ...camel40 for 40% discount


.. and/or any of the other Camel books in the market

http://camel.apache.org/books


Attend the CamelOne conferences

http://www.devnation.org

The conference formerly known as CamelOne,
is now part of larger conference named DevNation

Any Questions ?

ContactEMail: [email protected] / [email protected]

Twitter: @davsclaus

Blog: http://davsclaus.com

Linkedin: http://www.linkedin.com/in/davsclaus

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PUBLIC PRESENTATION | CLAUS IBSEN

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Technology

Getting started with Apache Camel presentation at BarcelonaJUG, january 2014