How to invoke custom rescorer plugin using elasticsearch-java 8 client

Elastic Stack Elasticsearch
1

Hi,

I have migrated a custom rescorer plugin from Elasticsearch version 7 to 8. I can invoke the plugin using the following request. However, I am unable to generate a similar request using elasticsearch-java 8.10.4. I tried following the post linked below but I am getting unknown query [customRescorer] when I use wrapper query inside rescore_query. It would be great if someone be able to share some pointers or a sample SearchRequest. Thanks.

{
  "_source": false,
  "query": {
    "match_all": {}
  },
  "rescore": [
    {
      "customRescorer": {
        "param1": 1,
        "param2": "name"
      },
      "window_size": 10
    }
  ],
  "size": 10
}

Sample using wrapper: https://stackoverflow.com/questions/61367584/convert-rescore-json-query-to-java

2

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