Examples with QueryVariant co.elastic.clients.elasticsearch._types.query_dsl.QueryVariant used on opensource projects

Example 16 with QueryVariant

use of co.elastic.clients.elasticsearch._types.query_dsl.QueryVariant in project para-search-elasticsearch by Erudika.

the class ESUtils method convertQueryStringToNestedQuery.

/**
 * Convert a normal query string query to one which supports nested fields.
 * Reference: https://github.com/elastic/elasticsearch/issues/11322
 * @param query query string
 * @return a list of composite queries for matching nested objects
 */
static QueryVariant convertQueryStringToNestedQuery(String query) {
    // nested array syntax
    String queryStr = StringUtils.trimToEmpty(query).replaceAll("\\[(\\d+)\\]", "-$1");
    Query q = qsParsed(queryStr);
    if (q == null) {
        return QueryBuilders.matchAll().build();
    }
    try {
        return rewriteQuery(q, 0);
    } catch (Exception e) {
        logger.warn(e.getMessage());
        return null;
    }
}