final Object id = doc.remove(fessConfig.getIndexFieldId());
            final IndexRequestBuilder builder = client.prepareIndex().setIndex(index).setId(id.toString()).setSource(new DocMap(doc));
            options.accept(doc, builder);
            bulkRequestBuilder.add(builder);
        }
        return bulkRequestBuilder.execute().actionGet(ComponentUtil.getFessConfig().getIndexBulkTimeout());
    }

    /**