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/*
 * Copyright (c) 2020-2030, Shuigedeng ([email protected] & https://blog.taotaocloud.top/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.taotao.cloud.openfeign.feign;

import static org.springframework.core.annotation.AnnotatedElementUtils.findMergedAnnotation;

import com.taotao.cloud.common.constant.CommonConstant;
import com.taotao.cloud.common.utils.lang.ObjectUtils;
import com.taotao.cloud.common.utils.log.LogUtils;
import com.taotao.cloud.openfeign.annotation.FeignInner;
import feign.MethodMetadata;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import org.springframework.cloud.openfeign.support.SpringMvcContract;

/**
 * 自定义 Inner 处理器
 *
 * @author shuigedeng
 * @version 2022.07
 * @since 2022-07-08 10:48:16
 */
public class FeignInnerContract extends SpringMvcContract {

    @Override
    protected void processAnnotationOnMethod(MethodMetadata data, Annotation methodAnnotation, Method method) {
        if (methodAnnotation instanceof FeignInner) {
            FeignInner feignInner = findMergedAnnotation(method, FeignInner.class);
            if (ObjectUtils.isNotEmpty(feignInner)) {
                LogUtils.debug("Found inner annotation on Feign interface, add header!");
                data.template().header(CommonConstant.TTC_FROM_INNER, "true");
            }
        }

        super.processAnnotationOnMethod(data, methodAnnotation, method);
    }


}