final IndexRequestBuilder requestBuilder = client.prepareIndex()
                                            .setIndex(configIndex)
                                            .setId(result.get("index").get("_id"))
                                            .setSource(source, XContentType.JSON);
                                    builder.add(requestBuilder);
                                }

        String src = source.getId();
        if (src != null) {
            if (sourceDominant || target.getId() == null) {
                target.setId(src);
                target.setLocation("id", source.getLocation("id"));
            }
        }
    }