Define custom ElasticSearch Analyzer using Java API

Is there a way to create an index and specify a custom analyzer using the Java API? It supports adding mappings at index creation开发者_如何学Python, 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?

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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();

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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