Created
August 23, 2012 13:36
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For analytics, here's an easy and elegant way to devide numeric value (document size in this case) to groups of ranges using Groovy.
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long contentLength = doc.getContentLength() // never mind where the long value comes from. | |
// Classify doc size. Notice that numbers in map's key have to be ordered (TreeMap) and last key should be Integer.MAX_VALUE: | |
// This is map of max length size value to a string describing this group | |
def docGroupMap = new TreeMap([2048:'0-2 KB', 5120:'2-5 KB', 10240:'5-10 KB', (Integer.MAX_VALUE): '10+ KB']) | |
// The find() method iterates the map and checks every key with the expression in its closure-parameter. | |
// Since TreeMap is used, the keys are ordered. | |
// Once the expression is true, the value is being assigned to the string. | |
// The value is a string describing textually the document size group. | |
String docSizeGroup = docGroupMap.find{k,v -> | |
contentLength < k | |
}.value |
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