动态修改子聚合

Question

如何动态修改子聚合？

val nestedAggregation = termsAggregation
      .subAggregation(filterAggregation
         .subAggregation(Sum1Aggregation)
         .subAggregation(Sum2Aggregation)
         .subAggregation(Sum3Aggregation)
       )

是否可以在创建上面的嵌套的Ajregation对象后修改它？ 例如，如果我想在创建对象后在过滤器聚合中添加另一个聚合，该怎么办？

nestedAggregation.filterAggregation.subAggregation(Avg1Aggregation) -- This didn't work

-----我的代码------

  val filterAggregation = AggregationBuilders
  .filter(aggName)
  .filter(QueryBuilders.boolQuery
    .must(rangeQuery(fieldName)
      .gte(startDate)
      .lt(endDate)))

 val nestedAggregation = terms1Aggregation
          .subAggregation(filterAggregation
             .subAggregation(Sum1Aggregation)
             .subAggregation(Sum2Aggregation)
             .subAggregation(Sum3Aggregation)
             .subAggregation(Avg1Aggregation)
           )

shouldSortByHours(sortKey) match {
  case true => nestedAggregation
  case false => {
    // This is where am planning to add the avg1 aggregation to filteraggregation
  }
}

更新＃2 - [可能的解决方案]

if (!shouldSortByHours(sortKey)){
        filterAggregation.subAggregation(Avg1Aggregation) 
    }

    val nestedAggregation = activeSubscriptionsList
      .subAggregation(filterAggregation
             .subAggregation(Sum1Aggregation)
             .subAggregation(Sum2Aggregation)
             .subAggregation(Sum3Aggregation)
      )

Answer 1

我建议这样的事情：

var filterAggregation = AggregationBuilders
  .filter(aggName)
  .filter(QueryBuilders.boolQuery
    .must(rangeQuery(fieldName)
      .gte(startDate)
      .lt(endDate)))
  .subAggregation(Sum1Aggregation)
  .subAggregation(Sum2Aggregation)
  .subAggregation(Sum3Aggregation)

shouldSortByHours(sortKey) match {
  case true => {
      terms1Aggregation.subAggregation(filterAggregation)
  }
  case false => {
      filterAggregation.subAggregation(Avg1Aggregation)
      terms1Aggregation.subAggregation(filterAggregation)
  }
}