package quizz.factory;

import java.lang.reflect.Constructor;

public class AnswerFactory {

    /** Constructor */
    private AnswerFactory()
    {}

    private static AnswerFactory INSTANCE = null;

    public static synchronized AnswerFactory getInstance()
    {
        if (INSTANCE == null)
        {
            INSTANCE = new AnswerFactory();
        }
        return INSTANCE;
    }

    public Answer<?> buildAnswer(String ansClassName, String ansText) throws Exception {
        Class<?> c = Class.forName(ansClassName);
        Constructor<?> constructor = c.getConstructor(String.class);
        Answer<?> ans = (Answer<?>) constructor.newInstance(ansText);
        return ans;
    }
}