Spring-Data-Elasticsearch settings: Spring can't find config file?

Question

With Spring-Data-Elasticsearch, I am trying to use analyzers and mappings defined in elasticsearch_config.json.
This JSON file is in /src/main/resources folder.

My JAVA model looks like:

@Document(indexName = "test", type="Tweet")
@Setting(settingPath = "/elasticsearch_config.json")
public class Tweet {   

    @Id
    private String idStr;

    /** other fields, getters and setters are omitted **/

}

elasticsearch_config.json contains both settings and mappings:

{
    "settings": { /* some filters */},
    "mappings": { /* some types' mappings*/ }
}

I tried with curl, I get no problem indexing/searching.

My problem:

I want to use @Setting to configure my mappings (not curl), but @Setting annotation doesn't seem to work. With @Setting, when I use curl to check my mapping, I don't get all the mappings I defined in elasticsearch_config.json :

curl -X GET "localhost:9200/test/_mapping?pretty=true"

My guess is that Spring can't find the elasticsearch_config.json properly. However I have already checked that myproject/src/main/resources is in my project's build path...

I appreciate any help, thank you!

Notes: I have found this solution that may work, but:
1. I don't understand where nodeBuilder comes from
2. I may be wrong but, isn't there a solution only using @Setting?

UPDATES: My mappings I separeted analyzers from mappings. mappings.json looks like this:

{
  "mappings": {
    "Tweet": {
      "_id": {
        "path":"idStr",
        "properties": {
          "idStr": {
            "type":"string",
            "index":"not_analyzed",
            "store":true
          }
        }
      },
      "numeric_detection" : true,
      "dynamic_templates": [
       {
          "id_fields": {
          "match":"userId*",
            "match_mapping_type": "string",
            "mapping": {
              "type":"string",
              "index":"no",
              "store":true
            }
          }
        },
        {
          "name_fields": {
            "match":"*Name",
            "match_mapping_type": "string",
            "mapping": {
              "type":"string",
              "index":"no",
              "store":true
            }
          }
        }
      ],
      "properties": {
        "text": {
          "type": "string",
          "index":"analyzed",
          "analyzer":"custom_analyzer",
          "store": true
        },
        "createdAt": {
          "type": "date",
          "format": "yyyy-MM-dd",
          "index":"analyzed",
          "store": true
        },
        "testVersion": {
          "type": "integer",
          "index":"not_analyzed",
          "store":false
        }
      }

    }

  }
}

Answer 1

Finally found out why it was not working!!

Like Val said, I decomposed my elasticsearch_config.json file into settings.json and mappings.json.

My project/src/main/ressources architecture:

- mappings
    + mappings.json
- settings
    + settings.json

And

@Document(indexName = "test", type="SentimentTweet")
@Setting(settingPath = "/settings/settings.json")
@Mapping(mappingPath = "/mappings/mappings.json")

However, in mappings.json, I should omit the field mappings and DIRECTLY put the content of the mapping.

INSTEAD OF:

{
    "mappings": {
        "Tweet": {
             /* MAPPINGS CONFIGURATION ARE OMITTED */
         }
    }
}

Only writes in mappings.json:

{
    "Tweet": {
         /* MAPPINGS CONFIGURATION ARE OMITTED */
     }
}

The same should be done for settings.json