settings.getAsBoolean("expand_ngram", false); // TODO remove

        synonymLoader = new SynonymLoader(env, settings, expand, SynonymLoader.getAnalyzer(ignoreCase));
        if (synonymLoader.getSynonymMap() == null) {
            if (settings.getAsList("synonyms", null) != null) {
                logger.warn("synonyms values are empty.");
            } else if (settings.get("synonyms_path") != null) {

            } else {
                this.synonymLoader = null;
                this.lastModified = System.currentTimeMillis();
            }
            synonymMap = synonymLoader.getSynonymMap();
            if (synonymMap != null && synonymMap.fst == null) {
                this.synonymMap = null;
            }
        } else {
            this.synonymLoader = null;
        }