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Apache Camel Developer's Cookbook

You're reading from   Apache Camel Developer's Cookbook For Apache Camel developers, this is the book you'll always want to have handy. It's stuffed full of great recipes that are designed for quick practical application. Expands your Apache Camel abilities immediately.

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Product type Paperback
Published in Dec 2013
Publisher Packt
ISBN-13 9781782170303
Length 424 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (14) Chapters Close

Preface 1. Structuring Routes FREE CHAPTER 2. Message Routing 3. Routing to Your Code 4. Transformation 5. Splitting and Aggregating 6. Parallel Processing 7. Error Handling and Compensation 8. Transactions and Idempotency 9. Testing 10. Monitoring and Debugging 11. Security 12. Web Services Index

Marking exceptions as handled


The default behavior for Camel is to call your exception (or error) handler, and rethrow the exception to the caller. This recipe will show how to mark that exception as handled, which tells Camel that it should not consider this to be an error and nothing further needs to be done, that is, do not rethrow that particular exception to the consuming endpoint.

Getting ready

The Java code for this recipe is located in the org.camelcookbook.error.exception package. The Spring XML files are located under src/main/resources/META-INF/spring and prefixed with exception.

How to do it...

Within the onException DSL statement, specify a handled statement with a predicate that will indicate if the exception has been handled (predicate evaluates to true) or if it is not handled (predicate evaluates to false, so exception should be re-thrown).

In the XML DSL, define an onException element within either the camelContext or route element. Within the onException element include one...

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