I know the curl command to get the information I need.
curl localhost:9200/_cat/indices/alerts*
and the output is
yellow open alerts_1502744517_1 5 1 25 0 642.3kb 642.3kb
yellow open alerts_1502744517_0 5 1 25 0 741.8kb 741.8kb
yellow open alerts_1502744882_0 5 1 27 0 679.8kb 679.8kb
What I need is the index name and the document count, which in this case is the 6th column (the 25, 25, and 27). How do I make the equivalent call using the java API?
I haven't try, but after some research on baeldung and stackoverflow. I found a solution that could work using this maven dependency
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>2.4.0</version>
</dependency>
Here is the code
Node node = nodeBuilder()
.clusterName("elasticsearch")
.client(true).node();
Client client = node.client();
SearchResponse response = client.prepareSearch("my-index")
.setTypes("my-type")
.setSearchType(SearchType.QUERY_AND_FETCH)
.setFetchSource(new String[]{"field1", "field2"}, null)
.setQuery(QueryBuilders.termsQuery("field1", "1234"))
.execute()
.actionGet();
for (SearchHit hit : response.getHits()){
Map map = hit.getSource();
map.toString();
}
Let me know if you have any error
I think one way is to get all the indices
String[] indices = client.admin()
.cluster().prepareState().get()
.getState().getMetaData()
.getConcreteAllIndices()
Then traverse them all and get the count for each indices.
Take a look into this class if you want to make a REST call: RestIndicesAction.java or the cat package
Here is my solution. Written on ElasticSearch 6.2.4 with Java 8.
/*for document count*/
long docCount = client.admin().indices().prepareStats(indiceName).clear().setDocs(true).execute().actionGet().getPrimaries().getDocs().getCount();
