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/*
 * Copyright 2022 lzhpo
 *
 * 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
 *
 *     http://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.boot.sensitive.other1.util;

import org.dromara.hutool.core.annotation.AnnotationUtil;
import org.springframework.web.method.HandlerMethod;

import java.lang.annotation.Annotation;
import java.util.Objects;

/** @author lzhpo */
public class AnnotationUtils {

    /**
     * According to {@code annotationType}, get the annotation from {@code handlerMethod}
     *
     * @param handlerMethod {@link HandlerMethod}
     * @param annotationType annotationType
     * @return {@link Annotation}
     */
    public static  T getAnnotation(HandlerMethod handlerMethod, Class annotationType) {
        Class beanType = handlerMethod.getBeanType();
        // First get the annotation from the class of the method
        T annotation = AnnotationUtil.getAnnotation(beanType, annotationType);
        if (Objects.isNull(annotation)) {
            // If not get the annotation from this class, will get it from the current method
            annotation = handlerMethod.getMethodAnnotation(annotationType);
        }
        return annotation;
    }
}