elasticsearch - ElasticSearch将其余查询转换为运输客户端Java代码

Question

在此先感谢您的帮助，

我创建了一个 flex 搜索_search查询，如下所示:

{
    "size" : 0,
  "aggs": {
    "attrs_root": {
      "nested": {
        "path": "tags"
      },
      "aggs": {
        "scope_term": {
          "terms": {
            "field": "tags.scope.keyword"
          },
          "aggs": {
            "tag_term": {
              "terms": {
                "field": "tags.tag.keyword"
              }
            }
          }
        }
      }
    }
  }
} 

现在，我想在Java Elastic Search Transport Client 6.2中转换此查询。我尝试使用下面的代码，但未返回相同结果。 :

               NestedAggregationBuilder nested = AggregationBuilders.nested("attrs_root", "tags");
        NestedAggregationBuilder subAggregation = nested
                .subAggregation(AggregationBuilders.terms("scope_term").field("tags.scope.keyword"));
        subAggregation = subAggregation.subAggregation(AggregationBuilders.terms("tag_term").field("tags.tag.keyword"));
        requestBuilder.addAggregation(nested);
        response = requestBuilder.execute().actionGet();

您能否让我知道我如何获得相同的结果？

再次感谢!

Answer 1

这是一个好的开始，但是您只需要将scope_term作为子聚合添加到嵌套的attrs_root聚合中:

NestedAggregationBuilder nested = AggregationBuilders.nested("attrs_root", "tags");
TermsAggregationBuilder field = AggregationBuilders.terms("scope_term").field("tags.scope.keyword");
field.subAggregation(AggregationBuilders.terms("tag_term").field("tags.tag.keyword"));

// add the next line
nested.subAggregation(field);