public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
ValidateQueryRequest validateQueryRequest = new ValidateQueryRequest(Strings.splitStringByCommaToArray(request.param("index")));
validateQueryRequest.listenerThreaded(false);
validateQueryRequest.indicesOptions(IndicesOptions.fromRequest(request, validateQueryRequest.indicesOptions()));
if (request.hasContent()) {
validateQueryRequest.source(request.content(), request.contentUnsafe());
} else {
String source = request.param("source");
if (source != null) {
validateQueryRequest.source(source);
} else {