THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Background and Introduction
Business Background
So there's a company, which we'll call Acme. Acme sells widgets, in a fairly unusual way. Their customers are responsible for telling Acme what they purchased. The customer enters into their own systems (ERP or whatever) which widgets they bought from Acme. Then at some point, their systems emit a record of the sale which needs to go to Acme so Acme can bill them for it. Obviously, everyone wants this to be as automated as possible, so there needs to be integration between the customer's system and Acme.
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- Listen for HTTP, e-mail, and FTP files
- Grab attachments from the e-mail messages
- Convert XML, XLS, and CSV files to a canonical XML format
- using XSLT, automatic data format conversion, and/or POJOs that write to JAXB objects read and write JMS messages
- route based on company ID
- format e-mails using Velocity templates
- send outgoing e-mail messages
Tutorial Background
This tutorial will cover all that, plus setting up tests along the way.
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You'll learn:
- How to set up a Maven build for a Camel project
- How to transform XML, CSV, and Excel data into a standard XML format with Camel
- How to write POJOs (Plain Old Java Objects), Velocity templates, and XSLT stylesheets that are invoked by Camel routes for message transformation
- How to configure simple and complex Routes in Camel, using either the XML or the Java DSL format
- How to set up unit tests that load a Camel configuration and test Camel routes
- How to use Camel's Data Formats to automatically convert data between Java objects and XML, CSV files, etc.
- How to send and receive e-mail from Camel
- How to send and receive JMS messages from Camel
- How to use Enterprise Integration Patterns including Message Router and Pipes and Filters
- How to use various languages to express content-based routing rules in Camel
- How to deal with Camel messages, headers, and attachments
You may choose to treat this as a hands-on tutorial, and work through building the code and configuration files yourself. Each of the sections gives detailed descriptions of the steps that need to be taken to get the components and routes working in Camel, and takes you through tests to make sure they are working as expected.
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