@Override
            public void onResponse(final SearchResponse searchResponse) {
                if (searchResponse.getFailedShards() > 0) {
                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

            @Override
            public void onResponse(final SearchResponse searchResponse) {
                if (searchResponse.getFailedShards() > 0) {
                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

        list.setTook(response.getTook().getMillis());
        list.setTotalShards(response.getTotalShards());
        list.setSuccessfulShards(response.getSuccessfulShards());
        list.setFailedShards(response.getFailedShards());
        list.setTotalHits(searchHits.getTotalHits());

        list.setAggregation(response.getAggregations());

        // #pending others

        return list;
    }

    @Override

        list.setTook(response.getTook().getMillis());
        list.setTotalShards(response.getTotalShards());
        list.setSuccessfulShards(response.getSuccessfulShards());
        list.setFailedShards(response.getFailedShards());
        list.setTotalHits(searchHits.getTotalHits());

        list.setAggregation(response.getAggregations());

        // #pending others

        return list;
    }

    @Override

        list.setTook(response.getTook().getMillis());
        list.setTotalShards(response.getTotalShards());
        list.setSuccessfulShards(response.getSuccessfulShards());
        list.setFailedShards(response.getFailedShards());
        list.setTotalHits(searchHits.getTotalHits());

        list.setAggregation(response.getAggregations());

        // #pending others

        return list;
    }

    @Override

        if (logger.isDebugEnabled()) {
            logger.debug("[{}] refresh status: {} ({}/{}/{})", index, response.getStatus(), response.getTotalShards(),
                    response.getSuccessfulShards(), response.getFailedShards());
        }
        return response.getStatus().getStatus();
    }

    /**
     * Calculates the memory size of a document data map.