}
private AggregatedDfs getAggregatedDfs(Fields termVectorFields, TermVectorRequest request) throws IOException {
DfsOnlyRequest dfsOnlyRequest = new DfsOnlyRequest(termVectorFields, new String[]{request.index()},
new String[]{request.type()}, request.selectedFields());
DfsOnlyResponse response = dfsAction.execute(dfsOnlyRequest).actionGet();
return response.getDfs();
}