Generate a list of nodes in XML, and their frequency.

simpleNodeNameCounter.groovy

File f = new File(/C:\data.xml/)
int ratio = 10
String delim = '/'

def root = new XmlSlurper()
root.setFeature('http://apache.org/xml/features/disallow-doctype-decl', false) // allow XML doctype tag to exist
root = root.parse(f)
String rootName = root.name()

Map nodeCount = [:].withDefault{0}

root.'**'.each {n ->
    String name = ""
    while(n.name() != rootName) {
        name = delim + n.name() + name
        n = n.parent()
    }
    if (name)
        nodeCount[name]++
}

println "---\n${nodeCount.collect{it}.join('\n')}"

/***find the most common nodes***/

int maxCount = nodeCount.collect{k,v -> v}.max().intdiv(ratio)
println "---\n filterBy: count=${maxCount}"
println "---\n${nodeCount.findAll{k,v -> (v > maxCount)}.collect{it}.join('\n')}"