FlushRequest flushRequest = new FlushRequest(Strings.splitStringByCommaToArray(request.param("index")));
flushRequest.listenerThreaded(false);
flushRequest.indicesOptions(IndicesOptions.fromRequest(request, flushRequest.indicesOptions()));
flushRequest.full(request.paramAsBoolean("full", flushRequest.full()));
flushRequest.force(request.paramAsBoolean("force", flushRequest.force()));
flushRequest.waitIfOngoing(request.paramAsBoolean("wait_if_ongoing", flushRequest.waitIfOngoing()));
client.admin().indices().flush(flushRequest, new RestBuilderListener<FlushResponse>(channel) {
@Override
public RestResponse buildResponse(FlushResponse response, XContentBuilder builder) throws Exception {
builder.startObject();
buildBroadcastShardsHeader(builder, response);