PropertyEntry.java

public class PropertyEntry {
    Class<? extends IProperty> propertyClass;
    Identifier name;
    Map<Integer, Constructor<? extends IProperty>> ctors = new HashMap<>();

    public PropertyEntry(Identifier name, Class<? extends IProperty> propertyClass) {
        this.propertyClass = propertyClass;
        this.name = name;
    }

    public IProperty generate(CompoundTag tag) {
        return generate().read(tag);
    }

    public IProperty generate(Object... args) {
        try {
            Class[] classes = new Class[args.length];
            for (int i = 0; i < args.length; i ++) classes[i] = args[i].getClass();
            int hash = 0;
            for (int i = 0; i < classes.length; i ++) hash ^= classes[i].hashCode();
            Constructor<? extends IProperty> ctor = ctors.get(hash);
            if (ctor == null) {
                ctors.put(hash, ctor = propertyClass.getConstructor(classes));
            }
            return ctor.newInstance(args);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            return null;
        } catch (InstantiationException e) {
            e.printStackTrace();
            return null;
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
            return null;
        } catch (InvocationTargetException e) {
            e.printStackTrace();
            return null;
        }
    }

    public IProperty generate() {
        try {
            return propertyClass.newInstance();
        } catch (InstantiationException e) {
            e.printStackTrace();
            return null;
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            return null;
        }
    }

    public Identifier getName() {
        return name;
    }
}