Develop Reference

How to implement Stemmer search in Elasticsearch 6.1 on java

I need to implement stemmer search, I've found this link on elasticsearch documentation. There is json that I've had send to elascticsearch server. But I new in elasticsearch and cannot figure out how to implements this in java. I cannot also find any examples. Ccould you please help me with this?
I've add setting with
PUT /data
{
"settings": {
"analysis" : {
"analyzer" : {
"my_analyzer" : {
"tokenizer" : "standard",
"filter" : ["standard", "lowercase", "my_stemmer"]
}
},
"filter" : {
"my_stemmer" : {
"type" : "stemmer",
"name" : "english"
}
}
}
}
}
after that I am trying to find 'skis' with query:
GET data/_search
{
"query": {
"simple_query_string": {
"fields": [ "value36" ],
"query": "ski"
}
}
}
but result is empty

ElasticSearch - How to get the source reference for each fragment highlighted

I would like to get the reference (it means the full object I see in the _source) from where each fragment highlighted originates.
Example :
Table = article
Columns = id, label, content
I would like to know for each fragments highlighted what is the id.
My ElasticSearch request :
GET /sa/_search
{
"query" : {
"bool" : {
"should" : {
"multi_match" : {
"query" : "oasis",
"fields" : [ "label", "content" ]
}
}
}
},
"highlight" : {
"order" : "score",
"fields" : {
"label" : { },
"content" : {
"fragment_size" : 250
}
}
}
}
Currently, with this request, I have only the fragment hightlighted, but I can't know which fragment is link to which id.
Does somebody has any idea to that ?

Subaggregation results are not properly showing

I am using Java Springdata elasticsearch and I want to use sub-aggregation and model the following query.
{
"from" : 0,
"size" : 10,
"sort" : [ {
"_score" : {
"order" : "desc"
}
} ],
"aggregations" : {
"parentAgg" : {
"terms" : {
"field" : "parentField",
"size" : 0
},
"aggregations" : {
"childAgg" : {
"terms" : {
"field" : "childField"
}
}
}
}
}
}
Currently I have used subaggregation (i.e. Aggregation.subAggregation(subAggName)) however output I get is -
"aggregations": [
{
"field": "parentAgg",
"values": [
{
"term": "val1",
"docCount": 2
},
{
"term": "val2",
"docCount": 2
},
{
"term": "val3",
"docCount": 1
}
]
}
]
Relavent Java Code -
for (Object aggregationField : request.getAggregationFields()) {
TermsBuilder termBuilder = AggregationBuilders.terms(aggregationField.toString())
.field(aggregationField.toString()).size(0);
if(aggregationField.toString().equals("parentField"))
{
TermsBuilder childBuilder = AggregationBuilders.terms("childAgg").field("childField").size(0);
termBuilder.subAggregation(childBuilder);
}
nativeSearchQueryBuilder.addAggregation(termBuilder);
}
Can you please let me know what I am missing?

Elasticsearch: Filter Query not working

I've been working to change my query to a filter in Elasticsearch using the java api. I've made sure that the fields I am running searches on are set to "not_analzed".
Here is the java code for the filter:
FilterBuilder andFilter = FilterBuilders.andFilter(FilterBuilders.termFilter("thread_name", keyword), FilterBuilders.termFilter("site_name", "test_site"));
QueryBuilder filteredQuery = QueryBuilders.filteredQuery(QueryBuilders.matchAllQuery(), andFilter);
SearchResponse threadResponse = client.prepareSearch("thread_and_messages").setQuery(filteredQuery).setSize(20).setFrom(firstRowOffset).execute().actionGet();
This then gets translated to this in JSON:
"filtered" : {
"query" : {
"match_all" : { }
},
"filter" : {
"and" : {
"filters" : [ {
"term" : {
"thread_name" : "apple"
}
}, {
"term" : {
"site_name" : "test_site"
}
} ]
}
}
}
When I try to do any searches it won't return the document I'm looking for which is thread_name: Apple and site_name: test_site.
Also when I run this using a curl command it won't find that document either.
Can anyone see what I'm doing wrong here?

You can use must clause.That will perform and operation
"query": {
"bool": {
"must": [
{
"query_string": {
"default_field": "thread_name",
"query": "apple"
}
},
{
"query_string": {
"default_field": "site_name",
"query": "test_site"
}
}
]
}
}

Elasticsearch java api filteredQuery

I have this query used with Exists API from elasticsearch (1.4.4) :
curl -XPOST 'http://elasticsearch:9200/_search/exists' -d '
{
"query": {
"filtered": {
"query": {
"match_phrase": {
"message": "2014-12-04 00:00:01 CET Tx[XXXXXXXX] cmd[INSERT] PID[XXXX] DB[XXXXX] LOG: some log info here ;-) \r"
}
},
"filter": {
"term" : {
"some_field" :"some_value"
}
}
}
}
}'
This works fine (return true when it has to be) but when I tried to do the same with java API like this :
Client client = this.createClient();
QueryBuilder queryBuilder = QueryBuilders.filteredQuery(
QueryBuilders.matchPhraseQuery("message", "the same message"),
FilterBuilders.termFilter("some_field", "some value")
);
System.out.println(queryBuilder.toString());
ExistsResponse response = client.prepareExists("existsMessage")
.setTypes(type)
.setIndicesOptions(IndicesOptions.fromOptions(true, true, true, false))
.setQuery(queryBuilder).execute().actionGet();
System.out.println(response.exists());
client.close();
But the result is always false! So I print the request build by the and it's different than want I wanted. So is there a way to do exactly my first request from source json or other way using api builders?
Edit :
The output of queryBuilder.toString()) :
{
"filtered" : {
"query" : {
"match" : {
"message" : {
"query" : "the same message\r",
"type" : "phrase"
}
}
},
"filter" : {
"term" : {
"some field" : "some value"
}
}
}
}