if (value == null) {
LOG.info("generator exhausted");
return Response.noContent().build();
}
ResponseBuilder response = Response.ok(value.getValue());
response.cacheControl(cacheControl);
response.header("X-Row", Base64.encodeBytes(value.getRow()));
response.header("X-Column",
Base64.encodeBytes(
KeyValue.makeColumn(value.getFamily(), value.getQualifier())));
response.header("X-Timestamp", value.getTimestamp());