return source;
}
try {
JustSourceFieldsVisitor sourceFieldVisitor = new JustSourceFieldsVisitor();
reader.document(docId, sourceFieldVisitor);
BytesReference source = sourceFieldVisitor.source();
if (source == null) {
this.source = ImmutableMap.of();
this.sourceContentType = null;
} else {
Tuple<XContentType, Map<String, Object>> tuple = sourceAsMapAndType(source);