Apache Camel

Apache Camel is an open source framework for message-oriented middleware with a rule-based routing and mediation engine that provides a Java object-based implementation of the Enterprise Integration Patterns using an application programming interface (or declarative Java domain-specific language) to configure routing and mediation rules.^{[clarification needed]}

Apache Camel

Developer(s)	Apache Software Foundation
Initial release	June 27, 2007; 17 years ago (2007-06-27)[1]
Stable release	4.8.x (LTS) 4.8.5 / 8 March 2025; 42 days ago (2025-03-08)[2] 4.10.x (LTS, latest) 4.10.2 / 9 March 2025; 41 days ago (2025-03-09)[2]
Repository	github.com/apache/camel
Written in	Java, XML
Operating system	Cross-platform
Type	Enterprise Integration Patterns Enterprise Service Bus SOA Message Oriented Middleware
License	Apache License 2.0
Website	camel.apache.org

The domain-specific language means that Apache Camel can support type-safe smart completion of routing rules in an integrated development environment using regular Java code without large amounts of XML configuration files, though XML configuration inside Spring Framework is also supported.

Camel is often used with Apache ServiceMix, Apache ActiveMQ and Apache CXF in service-oriented architecture projects.

Tooling

• Several Apache Maven-plugins are provided for validation and deployment.
• Graphical, Eclipse-based tooling is freely available from Red Hat. It provides graphical editing and debugging and advanced validation.
• Eclipse based tooling from Talend.

See also

• AdroitLogic UltraESB
• Apache ServiceMix
• Red Hat Fuse
• Guaraná DSL
• Mule (software)
• Open ESB
• Service Component Architecture (SCA)
• Petals ESB
• IBM Integration Bus
• Akka (toolkit) open-source toolkit and runtime for Reactive programming, concurrent and distributed applications on the JVM with camel integration.

Books

• Ibsen, Claus; Anstey, Jonathan (2018), Camel in Action (2nd ed.), Manning Publications, p. 912, ISBN 978-1617292934
• Cranton, Scott; Korab, Jakub (2013), Apache Camel Developer's Cookbook (1st ed.), Packt Publishing, p. 424, ISBN 978-1-78217-030-3
• Ibryam, Bilgin (2013), Instant Apache Camel Message Routing (1st ed.), Packt Publishing, p. 62, ISBN 978-1-78328-347-7
• Ibryam, Bilgin (2016), Camel Design Patterns (1st ed.), Leanpub, p. 111