Map<String, CrescentCollectionField> fieldsByName = sampleCollection.getCrescentFieldByName();
Set<String> fieldNames = fieldsByName.keySet();
LuceneFieldBuilder luceneFieldBuilder = new LuceneFieldBuilder();
for(String fieldName : fieldNames) {
CrescentCollectionField field = fieldsByName.get(fieldName);
IndexableField luceneField = luceneFieldBuilder.create(field, "30");
System.out.println(luceneField);
Assert.assertNotNull(luceneField);
}