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The validate pattern provides a convenient syntax to check whether the content of a message is valid. The validate DSL command takes a predicate expression as its sole argument: if the predicate evaluates to true, the route continues processing normally

Java DSL example

The following route validates the body of the current message using a regular expression:

...

from("jms:queue:incoming")
  .validate(simple("${in.header.bar} == 100"))
  .to("bean:MyServiceBean.processLine");

XML DSL example

The following route validates the body of the current message using a regular expression:

...