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hgmiguel/Collection_Pipeline.groovy

Created July 27, 2014 17:32
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Collection Pipeline in groovy
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Collection_Pipeline.groovy
some_articles
.collectMany{article -> article.tags.collect{ [ ( it ), article] }}
.groupBy{it.first()}
.collectEntries {k,v -> [( k ): v.collect {it.last()}]}
.collect {k,v -> [( k ):[articles: v.size(),words:v.collect{it.words}.inject(0) { acc, val -> acc + val }] ]}
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