- Apache Camel Developer's Cookbook
- Table of Contents
- Apache Camel Developer's Cookbook
- Credits
- About the Authors
- Acknowledgments
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Structuring Routes
- Introduction
- Using Camel in a Java application
- Embedding Camel in a Spring application
- Using Camel components
- Reusing routing logic by connecting routes
- Asynchronously connecting routes
- Spanning Camel contexts within a single Java process
- Using external properties in Camel routes
- Reusing endpoints
- Reusing routing logic through template routes
- Controlling route startup and shutdown
- 2. Message Routing
- Introduction
- Content Based Routing
- Filtering out unwanted messages
- Wire Tap – sending a copy of the message elsewhere
- Multicast – routing the same message to many endpoints
- Recipient List – routing a message to a list of endpoints
- Throttler – restricting the number of messages flowing to an endpoint
- Request-response route sending a one-way message
- One-way route waiting on a request-response endpoint
- Dynamic Routing – making routing decisions at runtime
- Load balancing across a number of endpoints
- Routing Slip – routing a message to a fixed list of endpoints
- 3. Routing to Your Code
- 4. Transformation
- Introduction
- Transforming using a Simple Expression
- Transforming inline with XQuery
- Transforming with XSLT
- Transforming from Java to XML with JAXB
- Transforming from Java to JSON
- Transforming from XML to JSON
- Parsing comma-separated values (CSV)
- Enriching your content with some help from other endpoints
- Normalizing messages into a common XML format
- 5. Splitting and Aggregating
- Introduction
- Splitting a message into fragments
- Splitting XML messages
- Processing split messages in parallel
- Aggregating related messages
- Aggregating with timeouts
- Aggregating with intervals
- Processing aggregated messages in parallel
- Splitting a message, and processing and gathering responses
- Splitting messages and re-aggregating them using different criteria
- 6. Parallel Processing
- 7. Error Handling and Compensation
- Introduction
- Logging errors
- Dead Letter Channel – handling errors later
- Retrying an operation
- Conditional retry
- Customizing each redelivery attempt
- Catching exceptions
- Marking exceptions as handled
- Fine-grained error handling using doTry…doCatch
- Defining completion actions
- Defining completion actions dynamically
- 8. Transactions and Idempotency
- Introduction
- Preventing duplicate invocation of routing logic
- Transactional file consumption
- Using transactions with a database
- Limiting the scope of a transaction
- Rolling back a transaction
- Using transactions with messaging
- Idempotency inside transactions
- Setting up XA transactions over multiple transactional resources
- 9. Testing
- Introduction
- Testing routes defined in Java
- Using mock endpoints to verify routing logic
- Replying from mock endpoints
- Testing routes defined in Spring
- Testing routes defined in OSGi Blueprint
- Auto-mocking of endpoints
- Validating route behavior under heavy load
- Unit testing processors and Bean Bindings
- Testing routes with fixed endpoints using AOP
- Testing routes with fixed endpoints using conditional events
- 10. Monitoring and Debugging
- Introduction
- Logging meaningful steps within your route
- Debugging using logging
- Throughput logging
- Enabling step-by-step tracing in code
- Disabling JMX
- Configuring JMX
- Naming your routes to make it easier to monitor
- Adding JMX attributes and operations
- Monitoring other systems using the Camel JMX Component
- Setting breakpoints in your routes
- 11. Security
- 12. Web Services
- Index
Authors
Scott Cranton
Jakub Korab
Reviewers
Bilgin Ibryam
Claus Ibsen
Christian Posta
Phil Wilkins
Acquisition Editors
Saleem Ahmed
Sam Wood
Lead Technical Editor
Ankita Shashi
Technical Editors
Dipika Gaonkar
Pramod Kumavat
Tarunveer Shetty
Project Coordinator
Anugya Khurana
Proofreaders
Simran Bhogal
Maria Gould
Indexers
Hemangini Bari
Tejal R. Soni
Graphics
Ronak Dhruv
Abhinash Sahu
Production Coordinator
Arvindkumar Gupta
Cover Work
Arvindkumar Gupta
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