関口宏司のLuceneブログ

public final class TestSimple {

    static final String[] DATA = {"station", "commotion", "elation", "elastic", "plastic", "stop", "ftop", "ftation", "stat"};

    public static void main(String[] args) throws IOException {
	List<String> list = new ArrayList<String>();
	for(String d : DATA){
            list.add(d);
	}
        Collections.sort(list);

	NoOutputs outputs = NoOutputs.getSingleton();
	Object nothing = outputs.getNoOutput();
	Builder<Object> b = new Builder<Object>(FST.INPUT_TYPE.BYTE1, outputs);

	final BytesRef term = new BytesRef();
	final IntsRef scratchIntsRef = new IntsRef();
	for (String d : list) {
            term.copyChars(d);
            b.add(Util.toIntsRef(term, scratchIntsRef), nothing);
	}

        FST<Object> fst = b.finish();

	Writer w = new PrintWriter("out.dot");
	Util.toDot(fst, w, true, true);
	w.close();
    }

}