elasticsearch - Elasticsearch脚本参数containsAll与文档中的值

Question

我正在尝试使用Java SDK使用Elasticsearch脚本查询来确定作为参数传递的ID集合是否包含索引文档中的所有值。

这是一个简单的示例，它不起作用，我希望它与文档相匹配，但事实并非如此。

文档attributes字段是一个包含单个项目[2]的数组

BoolQueryBuilder qb = boolQuery();

Map<String, Object> params = new HashMap<String, Object>();
params.put( "list", Arrays.asList( 1L, 2L, 3L ) );

String expr = "params.list.containsAll(doc['attributes'])";

Script script = new Script( ScriptType.INLINE, "painless", expr, Collections.emptyMap(), params );

qb.should( scriptQuery( script ) );

但是，我尝试了这些有效的各种硬编码替代方案

硬编码.contains(2)可以正常工作

BoolQueryBuilder qb = boolQuery();

Map<String, Object> params = new HashMap<String, Object>();
params.put( "list", Arrays.asList( 2L ) );

String expr = "params.list.contains(2)";

Script script = new Script( ScriptType.INLINE, "painless", expr, Collections.emptyMap(), params );

qb.should( scriptQuery( script ) );

硬编码.containsAll([2])可以正常工作

BoolQueryBuilder qb = boolQuery();

Map<String, Object> params = new HashMap<String, Object>();
params.put( "list", Arrays.asList( 2L ) );

String expr = "params.list.containsAll([2])";

Script script = new Script( ScriptType.INLINE, "painless", expr, Collections.emptyMap(), params );

qb.should( scriptQuery( script ) );

Answer 1

必须在调用params.list之前强制转换containsAll元素:

{
  "query": {
    "bool": {
      "must": [
        {
          "script": {
            "script": {
              "inline": """
              params.list.stream()
                         .map(num -> (long) num)
                         .collect(Collectors.toList())
                         .containsAll(
                           doc['attributes'].stream()
                                            .collect(Collectors.toList()))""",
              "params": {
                "list": [
                  2
                ]
              }
            }
          }
        }
      ]
    }
  }
}

假设您的映射确实这样定义了atributes:

{
  "mappings": {
    "properties": {
      "attributes": {
        "type": "long"
      }
    }
  }
}