substitute the value, e.g. build the md5 by concat the strings together, then you can use the java.lang.String.format method. But in Camel 2.0 we have added two convenient methods in the Java DSL so you can do fromF and toF that uses String formattin

Underscores To Camel Case for Linux Source Code.

Converts the field s name to camel-case, e.g. foo_bar_baz becomes fooBarBaz or FooBarBaz , respectively. -Converts the field s name to camel-case, e.g. foo_bar_baz becomes fooBarBaz or FooBarBaz , respectively.