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?

Answer 1

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(); 

Answer 2

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