String[] categories = new String[] { "a/b", "c/d", "a/e", "a/d", "c/g", "c/z", "b/a", "1/2", "b/c" };
FacetFields facetFields = new FacetFields(taxoWriter, iParams);
for (String cat : categories) {
Document doc = new Document();
facetFields.addFields(doc, Collections.singletonList(new CategoryPath(cat, '/')));
indexWriter.addDocument(doc);
}
// Commit Changes
IOUtils.close(indexWriter, taxoWriter);