{
        "headers": {
          "path_match": "headers.*",
          "mapping": {
            "type": "keyword"
          }
        }
      },
      {
        "search_fields": {
          "path_match": "searchField.*",
          "mapping": {
            "type": "keyword"
          }
        }
      },
      {
        "documents": {
          "path_match": "documents.*",
          "mapping": {

     * @return True if the field is a search field, false otherwise.
     */
    protected boolean isSearchField(final String field) {
        for (final String searchField : getQueryFieldConfig().searchFields) {
            if (searchField.equals(field)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Gets the query languages from the current request.

        try {
            final RESULT result = super.createEntity(source, entityType);
            final Object searchFieldObj = source.get("searchField");
            if (searchFieldObj instanceof Map) {
                ((Map<String, ?>) searchFieldObj).entrySet().stream().forEach(e -> {
                    if (e.getValue() instanceof String[]) {

        final Map<String, List<String>> searchFieldMap = searchFieldLogList.stream()
                .collect(Collectors.groupingBy(Pair::getFirst, Collectors.mapping(Pair::getSecond, Collectors.toList())));
        sourceMap.put("searchField", searchFieldMap);
        final Map<String, List<String>> headerMap = headerList.stream()
                .collect(Collectors.groupingBy(Pair::getFirst, Collectors.mapping(Pair::getSecond, Collectors.toList())));