HeroFactory.java

package com.hearthsim.util;

import com.hearthsim.card.minion.Hero;
import com.hearthsim.card.minion.heroes.TestHero;
import com.hearthsim.exception.HSInvalidHeroException;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

/**
 * A utility to convert a hero string to a Hero class instance
 *
 */
public class HeroFactory {
    public static Hero getHero(String heroName) throws HSInvalidHeroException {
        String cleanedString = heroName.trim();
        if (cleanedString.equals("None"))
            return new TestHero();
        try {
            Class<?> clazz = Class.forName("com.hearthsim.card.minion.heroes." + cleanedString);
            Constructor<?> ctor = clazz.getConstructor();
            Object object = ctor.newInstance();
            return (Hero)object;
        } catch (ClassNotFoundException | NoSuchMethodException | SecurityException | InvocationTargetException | InstantiationException | IllegalAccessException | IllegalArgumentException e) {
            throw new HSInvalidHeroException("Unknown hero: " + cleanedString);
        }
    }
}