content: /*
   * Copyright ©2015-2023 Jaemon. All Rights Reserved.
   *
   * 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.github.jaemon.dinger.core;
  
  import com.github.jaemon.dinger.core.annatations.Dinger;
  import com.github.jaemon.dinger.core.annatations.DingerPhone;
  import com.github.jaemon.dinger.core.annatations.Parameter;
  import com.github.jaemon.dinger.utils.DingerUtils;
  import org.springframework.core.ParameterNameDiscoverer;
  
  import java.lang.annotation.Annotation;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.Method;
  
  import static com.github.jaemon.dinger.constant.DingerConstant.DINGER_PHONE_KEY;
  
  /**
   * 注解参数名称解析
   *
   * @author Jaemon
   * @since 1.2
   */
  public class AnnotationParameterNameDiscoverer implements ParameterNameDiscoverer {
      @Override
      public String[] getParameterNames(Method method) {
          return getParameterNames(method.getParameters(), method.getParameterAnnotations());
      }
  
      @Override
      public String[] getParameterNames(Constructor<?> ctor) {
          return getParameterNames(ctor.getParameters(), ctor.getParameterAnnotations());
      }
  
      /**
       * 获取参数名称
       *
       * @param parameters
       *      参数对象{@link java.lang.reflect.Parameter}集
       * @param parameterAnnotations
       *      参数注解
       * @return
       *      参数名称
       */
      protected String[] getParameterNames(java.lang.reflect.Parameter[] parameters, Annotation[][] parameterAnnotations) {
          String[] params = new String[parameterAnnotations.length];
  
          for (int i = 0, j = 0; i < parameterAnnotations.length; i++) {
              Annotation[] parameterAnnotation = parameterAnnotations[i];
              params[i] = parameters[i].getName();
              for (Annotation annotation : parameterAnnotation) {
                  if (Parameter.class.isInstance(annotation)) {
                      Parameter dingerParam = (Parameter) annotation;
                      String value = dingerParam.value();
                      if (DingerUtils.isNotEmpty(value)) {
                          params[i] = value;
                          break;
                      }
                  }
  
                  if (DingerPhone.class.isInstance(annotation) && j == 0) {
                      params[i] = DINGER_PHONE_KEY;
                      j++;
                      break;
                  }
              }
          }
          return params;
      }
  }