// check response status
//
ResponseStatus status = Assert.notNull (response.getStatus(), "status from response object", ProviderException.class);
if(status.isError()) {
Log.error ("Error response for " + cmd.code + " => " + status.message());
throw new RedisException(cmd, status.message());
}
/* this is handled by the super class */
// else if(status.code() == ResponseStatus.Code.CIAO) {
// // normal for quit and shutdown commands. we disconnect too.