content: package com.alibaba.fastjson;
  
  /**
   * @since 1.2.15
   */
  public enum PropertyNamingStrategy {
                                      CamelCase, // camelCase
                                      PascalCase, // PascalCase
                                      SnakeCase, // snake_case
                                      KebabCase, // kebab-case
                                      NoChange,  //
                                      NeverUseThisValueExceptDefaultValue;
  
      public String translate(String propertyName) {
          switch (this) {
              case SnakeCase: {
                  StringBuilder buf = new StringBuilder();
                  for (int i = 0; i < propertyName.length(); ++i) {
                      char ch = propertyName.charAt(i);
                      if (ch >= 'A' && ch <= 'Z') {
                          char ch_ucase = (char) (ch + 32);
                          if (i > 0) {
                              buf.append('_');
                          }
                          buf.append(ch_ucase);
                      } else {
                          buf.append(ch);
                      }
                  }
                  return buf.toString();
              }
              case KebabCase: {
                  StringBuilder buf = new StringBuilder();
                  for (int i = 0; i < propertyName.length(); ++i) {
                      char ch = propertyName.charAt(i);
                      if (ch >= 'A' && ch <= 'Z') {
                          char ch_ucase = (char) (ch + 32);
                          if (i > 0) {
                              buf.append('-');
                          }
                          buf.append(ch_ucase);
                      } else {
                          buf.append(ch);
                      }
                  }
                  return buf.toString();
              }
              case PascalCase: {
                  char ch = propertyName.charAt(0);
                  if (ch >= 'a' && ch <= 'z') {
                      char[] chars = propertyName.toCharArray();
                      chars[0] -= 32;
                      return new String(chars);
                  }
  
                  return propertyName;
              }
              case CamelCase: {
                  char ch = propertyName.charAt(0);
                  if (ch >= 'A' && ch <= 'Z') {
                      char[] chars = propertyName.toCharArray();
                      chars[0] += 32;
                      return new String(chars);
                  }
  
                  return propertyName;
              }
              case NoChange:
              case NeverUseThisValueExceptDefaultValue:
              default:
                  return propertyName;
          }
      }
  }
  