Groovy foreach

def generateUrl(SearchRequest searchRequest){
 String url = TEST_URL
 boolean first = true

 searchRequest.requestParameters.each {key, value ->
 if (first)
 url += Constants.WHAT + key+Constants.EQUALS + value
 else
 url += Constants.AND + key + Constants.EQUALS + value
 first = false
 }

 println "SEARCH REQUEST => ${url}"

 url
 }