Define custom ElasticSearch Analyzer using Java API

Question

Is there a way to create an index and specify a custom analyzer using the Java API? It supports adding mappings at index creation, but I can't find a way to do something like this without sending the JSON via HTTP PUT:

curl -XPUT localhost:9200/twitter?pretty=true -d '{
"analysis": {
       "analyzer": {
            "steak" : {
                "type" : "custom", 
                "tokenizer" : "standard",
                "filter" : ["snowball", "standard", "lowercase"]
            }
        }
    }
}'

I can build such a query using JSONBuilder, but I can't find no place in the API where to run it, CreateIndexRequest doesn't have anything I can use and neither does client.admin().indices(), as far as I can see. What's the right way to do this?

Anatolii Stepaniuk · Accepted Answer · 2016-08-18 00:25:12Z

29

You can set analyzer using client.admin().indices().prepareCreate("twitter").setSettings(...). There are several ways to build settings. You can load them from text, map or even use jsonBuilder if that's what you want:

client.admin().indices().prepareCreate("twitter")
            .setSettings(Settings.settingsBuilder().loadFromSource(jsonBuilder()
                .startObject()
                    .startObject("analysis")
                        .startObject("analyzer")
                            .startObject("steak")
                                .field("type", "custom")
                                .field("tokenizer", "standard")
                                .field("filter", new String[]{"snowball", "standard", "lowercase"})
                            .endObject()
                        .endObject()
                    .endObject()
                .endObject().string()))
            .execute().actionGet();

edited Aug 18, 2016 at 0:25

Anatolii Stepaniuk

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answered Jun 8, 2011 at 14:54

imotov

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2 Comments

saba safavi Over a year ago

when I add my analyzer to a field I got this error MapperParsingException[Mapping definition for [value] has unsupported parameters: [analyzer : delimeter_analyzer]]

vefthym Over a year ago

for anyone else having the same stupid issue as me (in the new Java API v7.6), the settings json object that you pass must start with "analysis", not "settings"...

Sebastien Lorber · Accepted Answer · 2012-07-04 10:17:08Z

1

If you are on a test environnent you can also uses this project which will create your indexes based on Java annotations. https://github.com/tlrx/elasticsearch-test

answered Jul 4, 2012 at 10:17

Sebastien Lorber

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1 Comment

Roman Over a year ago

Nice Work. I really miss in the JAVA ES api POJO mappings for index objects....(( C# has some nice projects , like Nest that implement that

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