java code for define custom mapping

gistfile1.java

 try {

            XContentBuilder stopwordfilter = null;
            XContentBuilder indexSettings = null;
            stopwordfilter=XContentFactory.jsonBuilder();
            stopwordfilter.startObject()
                            .startObject("stopwordfilter")
                            .field("type","stop")
                            .field("stopwords_path","F:\\resources\\stopwords_eng.txt")
                            .field("ignore_case","true")
                            .endObject();
                 

                indexSettings = XContentFactory.jsonBuilder();
                indexSettings.startObject()
                        .startObject("index")
                        .startObject("analysis")
                        .startObject("analyzer")
                        .startObject("search_analyzer")
                        .field("type","custom")
                        .field("tokenizer", "whitespace")
                        .field("filter", new String[]{"stopwordfilter"})
                        .field("filter",stopwordfilter)
                        .endObject().endObject().endObject().endObject().endObject();

         
                UpdateSettingsRequestBuilder settingsRequest =client.admin().indices().prepareUpdateSettings();
                UpdateSettingsRequestBuilder setSettings = settingsRequest.setSettings(indexSettings.string());
                UpdateSettingsResponse settingsResponse =setSettings.execute().actionGet();
                System.out.println(settingsResponse);

            } catch (IOException e) {
                e.printStackTrace();
            }