java print XContentBuilder Json string

Question

I use an XContentBuilder object to build a Json string.

XContentBuilder builder = XContentFactory.jsonBuilder().startObject()
                .field(Constants.OSM_ID, doc.getOsmId())
                .field(Constants.OSM_TYPE, doc.getOsmType())
                .field(Constants.OSM_KEY, doc.getTagKey())
                .field(Constants.OSM_VALUE, doc.getTagValue())
                .field(Constants.IMPORTANCE, doc.getImportance());

Now I would like to System.out the resulting Json String. How can I do this?

Answer 1

since elastic client v6.3

import org.elasticsearch.common.Strings;

String json = Strings.toString(builder);

see elastic docs

Answer 2

Finish building:

String s = builder.string();
System.out.println(s);