Configure elasticsearch mapping with java api

Question

I have a few elasticsearch fields that I don't want to analyze before indexing. I have read that the right way to do this is by altering the index mapping. Right now my mapping looks like this:

{
  "test" : {
   "general" : {
      "properties" : {
        "message" : {
          "type" : "string"
        },
        "source" : {
          "type" : "string"
        }
      }
    }
  }
}

And I would like it to look like this:

{
  "test" : {
   "general" : {
      "properties" : {
        "message" : {
          "type" : "string",
          "index" : "not_analyzed"
        },
        "source" : {
          "type" : "string"
        }
      }
    }
  }
}

I have been trying to change the settings via

client.admin().indices().prepareCreate("test")
        .setSettings(getGrantSettings());

Where getGrantSettings() looks like:

static Settings getGrantSettings(){
    JSONObject settingSource = new JSONObject();
    try{
        settingSource.put("mapping", new JSONObject()
        .put("message", new JSONObject()
            .put("type", "string")
            .put("index", "not_analyzed")
        ));
    } catch (JSONException e){
        e.printStackTrace();
    }


    Settings set = ImmutableSettings.settingsBuilder()
            .loadFromSource(settingSource.toString()).build();
    return set;
}

I don't see a question here. Are you having problems? If so what kind? — John Petrone
– John Petrone, Commented May 8, 2014 at 21:59

Paige Cook · Accepted Answer · 2014-05-09 01:28:44Z

20

I have successfully applied mappings to an Elasticsearch index using the Java API like the following:

 XContentBuilder mapping = jsonBuilder()
                              .startObject()
                                   .startObject("general")
                                        .startObject("properties")
                                            .startObject("message")
                                                .field("type", "string")
                                                .field("index", "not_analyzed")
                                             .endObject()
                                             .startObject("source")
                                                .field("type","string")
                                             .endObject()
                                        .endObject()
                                    .endObject()
                                 .endObject();

  PutMappingResponse putMappingResponse = client.admin().indices()
                .preparePutMapping("test")
                .setType("general")
                .setSource(mapping)
                .execute().actionGet();

Hope this helps.

answered May 9, 2014 at 1:28

Paige Cook

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2 Comments

padilo Over a year ago

Just to clarify: jsonBuilder() is a static method in org.elasticsearch.common.xcontent.XContentFactory

sarah w Over a year ago

add this line if your index does not exists before mapping client.admin().indices().create(new CreateIndexRequest("indexname")).actionGet(); prior to applying mapping otherwise indexMissingException will be thrown

Charith De Silva · Accepted Answer · 2015-04-02 03:08:33Z

11

Adding this for future readers. Please note you need to perform mapping prior to create the actual index or you will get an exception. See following code.

client.admin().indices().create(new CreateIndexRequest("indexname")).actionGet();

PutMappingResponse putMappingResponse = client.admin().indices()
    .preparePutMapping("indexname")
    .setType("indextype")
    .setSource(jsonBuilder().prettyPrint()
                .startObject()
                    .startObject("indextype")
                        .startObject("properties")
                            .startObject("country").field("type", "string").field("index", "not_analyzed").endObject()
                        .endObject()
                    .endObject()
                .endObject())
    .execute().actionGet();

IndexResponse response1 = client.prepareIndex("indexname", "indextype")
    .setSource(buildIndex())
    .execute()
    .actionGet();   

// Now "Sri Lanka" considered to be a single country :) 
SearchResponse response = client.prepareSearch("indexname"
    ).addAggregation(AggregationBuilders.terms("countryfacet").field("country")).setSize(30).execute().actionGet();

answered Apr 2, 2015 at 3:08

Charith De Silva

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1 Comment

sarah w Over a year ago

thanks alot i was getting the indexmissingexception after following the code provided in the accepted answer this line client.admin().indices().create(new CreateIndexRequest("indexname")).actionGet(); solved my problem

Community · Accepted Answer · 2017-05-23 11:54:40Z

0

Just read the Definitive Guide carefully:

Although you can add to an existing mapping, you can’t change existing field mappings. If a mapping already exists for a field, data from that field has probably been indexed. If you were to change the field mapping, the indexed data would be wrong and would not be properly searchable.

Source: https://www.elastic.co/guide/en/elasticsearch/guide/current/mapping-intro.html#updating-a-mapping

So you just have to do it when you create the field. Thats why the code from this answer works without problems.

edited May 23, 2017 at 11:54

CommunityBot

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answered Apr 21, 2016 at 13:09

neun24

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Comments

bAZtARd · Accepted Answer · 2018-09-27 08:30:25Z

So, turns out elasticsearch docs are way outdated on that topic. not_analyzed does not exist anymore and string is now text. After some trial and error I came up with this:

CreateIndexRequest createIndexRequest = new CreateIndexRequest("yourIndexName");
XContentBuilder mapping = jsonBuilder()
                .startObject()
                  .startObject("properties")
                    .startObject("yourProperty")
                      .field("type", "keyword")
                    .endObject()
                  .endObject()
                .endObject();
createIndexRequest.mapping("yourEntityName", mapping);
client.indices().create(createIndexRequest);

Now yourProperty can be queried for exact value only with term query.

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