content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.nacos.core.utils;
  
  import com.alibaba.nacos.common.http.HttpUtils;
  import org.springframework.util.LinkedMultiValueMap;
  import org.springframework.util.MultiValueMap;
  import org.springframework.web.multipart.MultipartException;
  import org.springframework.web.multipart.MultipartFile;
  import org.springframework.web.multipart.support.StandardMultipartHttpServletRequest;
  
  import jakarta.servlet.http.HttpServletRequest;
  import java.nio.charset.StandardCharsets;
  import java.util.Map;
  import java.util.Objects;
  
  /**
   * httprequest wrapper.
   *
   * @author <a href="mailto:liaochuntao@live.com">liaochuntao</a>
   */
  public class ReuseUploadFileHttpServletRequest extends StandardMultipartHttpServletRequest implements ReuseHttpRequest {
      
      private static final String DEFAULT_FILE_NAME = "file";
      
      private final HttpServletRequest request;
      
      private Map<String, String[]> stringMap;
      
      public ReuseUploadFileHttpServletRequest(HttpServletRequest request) throws MultipartException {
          super(request);
          this.request = request;
          this.stringMap = toDuplication(request);
      }
      
      @Override
      public Map<String, String[]> getParameterMap() {
          return stringMap;
      }
      
      @Override
      public String getParameter(String name) {
          String[] values = stringMap.get(name);
          if (values == null || values.length == 0) {
              return null;
          }
          return values[0];
      }
      
      @Override
      public String[] getParameterValues(String name) {
          return stringMap.get(name);
      }
      
      @Override
      public Object getBody() throws Exception {
          MultipartFile target = super.getFile(DEFAULT_FILE_NAME);
          if (Objects.nonNull(target)) {
              MultiValueMap<String, Object> parts = new LinkedMultiValueMap<>();
              parts.add(DEFAULT_FILE_NAME, target.getResource());
              return parts;
          } else {
              // The content-type for the configuration publication might be "multipart/form-data"
              return HttpUtils.encodingParams(HttpUtils.translateParameterMap(stringMap), StandardCharsets.UTF_8.name());
          }
      }
  }
  