public NGramTokenizerFactory(Map<String, String> args) {super(args);minGramSize = getInt(args, "minGramSize", NGramTokenizer.DEFAULT_MIN_NGRAM_SIZE);maxGramSize = getInt(args, "maxGramSize", NGramTokenizer.DEFAULT_MAX_NGRAM_SIZE);if (!args.isEmpty()) {throw new IllegalArgumentException("Unknown parameters: " + args);}}