Advanced Elasticsearch 7.0

REST client initialization

As we've said, the high-level REST client is built on the top of the low-level REST client, so the constructor takes the RestClientBuilder object as an argument to build the high-level REST client object. Our example is shown in the following code block and is similar to the low-level REST client:

 public RestHighLevelClient HighLevelRestClient() {     return new RestHighLevelClient(         RestClient.builder(new HttpHost("localhost", 9200, "http"))             .setDefaultHeaders(new Header[] {                 new BasicHeader("accept","application/json"),                  new BasicHeader("content-type","application/json")})             .setFailureListener(new RestClient.FailureListener() {                 public void onFailure(Node node) { logger.error("High level Rest Client Failure on node " ...