camelize in groovy

Camelize.groovy

public String camelize(String cmdName, boolean firstUpper = false) {
	def words = cmdName.split("\\_");
	return (firstUpper ? capitalize(words[0]) : words[0]) + words[1..(words.size() -1)].collect({capitalize(it)}).join()
}

public String capitalize(String a){
	String s = a.substring(1)
	return "${a[0].toUpperCase()}${s.toLowerCase()}"
}