Apache Camel

Apache Camel is an open source Java framework that focuses on making integration easier and more accessible to developers. It does this by providing:

• concrete implementations of all the widely used Enterprise Integration Patterns (EIPs)
• connectivity to a great variety of transports and APIs
• easy to use Domain Specific Languages (DSLs) to wire EIPs and transports together

Camel in Action

https://www.manning.com/books/camel-in-action

Routing with Camel   -  https://livebook.manning.com/#!/book/camel-in-action/chapter-2/11

Transforming with Camel  - https://livebook.manning.com/#!/book/camel-in-action/chapter-3

Creating camel projects  -  https://livebook.manning.com/#!/book/camel-in-action/chapter-11/1