/*
 *      Copyright (c) 2018-2028, DreamLu All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: DreamLu 卢春梦 (596392912@qq.com)
 */
package org.springblade.core.cloud.feign;

import feign.Target;
import org.springframework.cloud.openfeign.FallbackFactory;
import lombok.AllArgsConstructor;
import org.springframework.cglib.proxy.Enhancer;

/**
 * 默认 Fallback，避免写过多fallback类
 *
 * @param <T> 泛型标记
 * @author L.cm
 */
@AllArgsConstructor
public class BladeFallbackFactory<T> implements FallbackFactory<T> {
	private final Target<T> target;

	@Override
	@SuppressWarnings("unchecked")
	public T create(Throwable cause) {
		final Class<T> targetType = target.type();
		final String targetName = target.name();
		Enhancer enhancer = new Enhancer();
		enhancer.setSuperclass(targetType);
		enhancer.setUseCache(true);
		enhancer.setCallback(new BladeFeignFallback<>(targetType, targetName, cause));
		return (T) enhancer.create();
	}
}