Getting the Double values instead of Integer using JestClient to retrieve document from elasticsearch

Question

Getting the Double values instead of Integer using JestClient to retrieve document from elasticsearch.

Index mapping -



               "makeId": {
                  "type": "integer"
               },
               "makeName": {
                  "type": "keyword"
               },
               "yearId": {
                  "type": "integer"
               }

I am using JestClient (In java) to get the fields value, I'm expecting makeId and yearId values as integer, but values are returned as Double,

Jest maven Depandency -

<dependency>
   <groupId>io.searchbox</groupId>
   <artifactId>jest</artifactId>
   <version>2.0.0</version>
</dependency>

Java code -

String[] reqFields = { "makeName","makeId","yearId" };
 SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
                    BoolQueryBuilder boolquery = QueryBuilders.boolQuery();
                    boolquery.must(QueryBuilders.matchQuery("yearId", yearId));
                    searchSourceBuilder.query(boolquery).fetchSource(reqFields, null).size(9000);

                    Search.Builder searchBuilder = new Search.Builder(searchSourceBuilder.toString()).addIndex(indexName).addType(indexType);
                    SearchResult result = jestClient.execute(searchBuilder.build());
                    List<Hit<Map, Void>> hits = result.getHits(Map.class);

after this line SearchResult gets Source object as integer values (as I am expecting)

SearchResult result = jestClient.execute(searchBuilder.build());

Response:-

{"took":29,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1466,"max_score":1.0,"hits":[{"_index":"vehicle","_type":"vehicle_dev","_id":"836","_score":1.0,"_source":{"makeId":2,"makeName":"BUICK","yearId":2012}},{"_index":"vehicle","_type":"vehicle_dev","_id":"1915","_score":1.0,"_source":{"makeId":5,"makeName":"CHEVROLET","yearId":2012}},{"_index":"vehicle","_type":"vehicle_dev","_id":"2511","_score":1.0,"_source":{"makeId":5,"makeName":"CHEVROLET","yearId":2012}},{"_index":"vehicle","_type":"vehicle_dev","_id":"2324","_score":1.0,"_source":{"makeId":5,"makeName":"CHEVROLET","yearId":2012}}

(Expected)

but when next line executed -

List<Hit<Map, Void>> hits = result.getHits(Map.class);

Response:-

{makeId=2.0, makeName=BUICK, yearId=2012.0, es_metadata_id=836}

Unexpected

Values got changed into Double i..e 2.0 from 2.

Answer 1

@shubam

Create your Own Model(POJO) class with the fields of index and give appropriate types

Example

public IndexModel
{
private integer makeId;
private String makeName;
private integer yearId;

//Generate the setter and getters 

and then use this class

List<IndexModel> IndexModelList = result.getSourceAsObjectList(IndexModel.class);
                for( IndexModel indexModel: IndexModelList ){
                    indexModel.getyearId();

This will give you the results in your define types of POJO