How to construct QueryBuilder from JSON DSL when using Java API in ElasticSearch?
Solution 1
You can use QueryBuilders.wrapperQuery(jsonQueryString);
Solution 2
You can use setQuery
, which can receive a json format string.
/**
* Constructs a new search source builder with a raw search query.
*/
public SearchRequestBuilder setQuery(String query) {
sourceBuilder().query(query);
return this;
}
Note this: only part of the DSL is needed, the {"query": }
part is omitted, like this:
SearchResponse searchResponse = client.prepareSearch(indices).setQuery("{\"term\": {\"id\": 1}}").execute().actionGet();
Solution 3
It might be worth investigating low level rest client. With this you can do:
RestClient esClient = RestClient.builder(new HttpHost("localhost", 9200, "http")).build();
Request request = new Request("POST", "/INDEX_NAME/_doc/_search");
request.setJsonEntity(yourJsonQueryString);
Response response = esClient.performRequest(request);
String jsonResponse = EntityUtils.toString(response.getEntity());
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Comments
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Armstrongya about 3 years
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).
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Armstrongya over 9 yearsThanks for your answer, I have found two method in ES API which can wrap DSL string to QueryBuilder, one is WrapperQueryBuilder, another is QueryBuilders.wrapperQuery()
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Armstrongya over 9 yearsomit the {"query":} part helps me a lot, thanks again for your help.
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Gordon Thompson over 7 yearsFor those of you using ES 5.0, this no longer works: discuss.elastic.co/t/…
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Felipe Plazas about 5 years@GordonThompson exactly, for those using newer versions make sure to check the WrapperQuery.
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Kaliappan about 5 yearsBy omitting the {"query":} part in json string works charm !