Camel's DSL (Domain Specific Language) is one of the features that makes Camel standout from other Integration frameworks. While some other frameworks also feature a DSL concept, typically in the form of a XML file, the DSL was in such cases always a custom based language.
Camel offers multiple DSLs in programming languages such as Java, Scala, Groovy, and in XML.
For example a simple file copy route can be done in various ways as shown in the list below
Blueprint/Spring DSL (XML)
<route> <from uri="file:data/inbox"/> <to uri="file:data/out"/> </route>
from "file:data/inbox" -> "file:data/out"