How to construct QueryBuilder from JSON DSL when using Java API in ElasticSearch?

Question

I'm using ElasticSearch as a search service in Spring Web project which using Transport Client to communicate with ES.

I'm wondering if there exists a method which can construct a QueryBuilder from a JSON DSL. for example, convert this bool query DSL JSON to a QueryBuilder.

{
    "query" : {
        "bool" : {
            "must" : { "match" : {"content" : "quick"},
            "should": { "match": {"content" : "lazy"}
        }
    }
}

I need this method because I have to receive user's bool string input from web front-side, and parse this bool string to a QueryBuilder. However it not suit to use QueryBuilders.boolQuery().must(matchQB).should(shouldQB).must_not(mustNotQB). Because we may need several must or non must query.

If there exist a method can construct a QueryBuilder from JSON DSL or there exists alternative solutions, it will much easier.

PS: I have found two method which can wrap a DSL String to a QueryBuilder for ES search. One is WrapperQueryBuilder, see details here. http://javadoc.kyubu.de/elasticsearch/HEAD/org/elasticsearch/index/query/WrapperQueryBuilder.html Another is QueryBuilders.wrapperQuery(String DSL).

Answer 1

You can use QueryBuilders.wrapperQuery(jsonQueryString);