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 li

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