// accumulates counts returned by lexicons in each language
// TODO: It is possible to write a generic accumulator that accumulates sum over all the languages
public Map<String, Integer> getLexiconCounts(Indexer indexer, boolean originalContentOnly) {
List<Document> docs = indexer.docs;
Collection<Lexicon1Lang> lexicons = getRelevantLexicon1Langs(docs);
Map<String, Integer> result = new LinkedHashMap<String, Integer>();
Set<Document> docs_set = Util.castOrCloneAsSet(docs);
// aggregate results for each lang into result
for (Lexicon1Lang lex : lexicons) {
Map<String, Integer> resultsForThisLang = lex.getLexiconCounts(indexer, originalContentOnly);
if (resultsForThisLang == null) continue;
for (String caption : resultsForThisLang.keySet()) {
Integer resultCountsThisLang = resultsForThisLang.get(caption);
Integer resultCounts = result.get(caption);
// if caption doesn't exist already, create a new entry, or else add to the existing set of
// docs that match this caption
if (resultCounts == null) result.put(caption, resultCountsThisLang);
else result.put(caption, resultCounts + resultCountsThisLang);
}
}
return result;
}
