java类org.bukkit.configuration.serialization.DelegateDeserialization的实例源码

@SuppressWarnings("unchecked")
static void unmarshalElement(Element baseElement, Map<String, Object> map) {
    List<Element> childElements = baseElement.elements();

    for (Element childElement : childElements) {
        String name = childElement.getName();
        Attribute itemMetaAttribute = childElement.attribute("itemmeta");

        Object value;

        if (itemMetaAttribute != null && Boolean.valueOf(itemMetaAttribute.getValue()).booleanValue()) {
            Map<String, Object> metaMap = Maps.newHashMap();
            unmarshalElement(childElement, metaMap);

            Material material = Material.valueOf((String) map.get("type"));
            ItemMeta metaDummy = Bukkit.getItemFactory().getItemMeta(material);

            Class<?> deserializationClass = metaDummy.getClass();

            do {
                if (!deserializationClass.isAnnotationPresent(DelegateDeserialization.class)) {
                    break;
                }

                DelegateDeserialization annotation = deserializationClass.getAnnotation(DelegateDeserialization.class);
                deserializationClass = annotation.value();
            } while (true);

            ItemMeta meta;

            try {
                Method method = deserializationClass.getMethod("deserialize", Map.class);
                meta = (ItemMeta) method.invoke(null, metaMap);
            } catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
                throw new IllegalStateException("Cannot deserialize item meta", e);
            }

            value = meta;
        } else {
            value = deserializeObject(childElement);
        }

        map.put(name, value);
    }
}