content: package com.alibaba.excel.metadata.data;
  
  import com.alibaba.excel.util.StringUtils;
  
  import lombok.EqualsAndHashCode;
  import lombok.Getter;
  import lombok.Setter;
  
  /**
   * data format
   *
   * @author Jiaju Zhuang
   */
  @Getter
  @Setter
  @EqualsAndHashCode
  public class DataFormatData {
      /**
       * index
       */
      private Short index;
  
      /**
       * format
       */
      private String format;
  
      /**
       * The source is not empty merge the data to the target.
       *
       * @param source source
       * @param target target
       */
      public static void merge(DataFormatData source, DataFormatData target) {
          if (source == null || target == null) {
              return;
          }
          if (source.getIndex() != null) {
              target.setIndex(source.getIndex());
          }
          if (StringUtils.isNotBlank(source.getFormat())) {
              target.setFormat(source.getFormat());
          }
      }
  
      @Override
      public DataFormatData clone() {
          DataFormatData dataFormatData = new DataFormatData();
          dataFormatData.setIndex(getIndex());
          dataFormatData.setFormat(getFormat());
          return dataFormatData;
      }
  }
  