package com.opencsv.bean;
   
   import com.opencsv.ICSVParser;
   import com.opencsv.exceptions.CsvDataTypeMismatchException;
   import org.apache.commons.lang3.EnumUtils;
   import org.apache.commons.lang3.StringUtils;
   
   import java.util.Locale;
   import java.util.ResourceBundle;
  
  /**
   * This class converts an input to an enumeration type and vice versa.
   * The input string must match the enumeration value as declared, ignoring
   * case. The output value will always be the enumeration value, exactly as
   * declared.
   *
   * @author Andrew Rucker Jones
   * @since 5.2
   */
  public class ConverterEnum extends AbstractCsvConverter {
  
      /**
       * @param type    The class of the type of the data being processed
       * @param locale   If not null or empty, specifies the locale used for
       *                 converting locale-specific data types
       * @param writeLocale   If not null or empty, specifies the locale used for
       *                 converting locale-specific data types for writing
       * @param errorLocale The locale to use for error messages.
       */
      public ConverterEnum(Class<?> type, String locale, String writeLocale, Locale errorLocale) {
          super(type, locale, writeLocale, errorLocale);
      }
  
      @Override
      @SuppressWarnings("unchecked")
      public Object convertToRead(String value) throws CsvDataTypeMismatchException {
          Object o = null;
          if (StringUtils.isNotEmpty(value)) {
              o = EnumUtils.getEnumIgnoreCase((Class<Enum>)type, value);
              if(o==null) {
                  throw new CsvDataTypeMismatchException(value, type, String.format(
                          ResourceBundle.getBundle(ICSVParser.DEFAULT_BUNDLE_NAME, this.errorLocale).getString("illegal.enum.value"),
                          value, type.getName()));
              }
          }
          return o;
      }
  
      @Override
      public String convertToWrite(Object value) {
          String s = StringUtils.EMPTY;
          if(value != null) {
              Enum e = (Enum)value;
              s = e.name();
          }
          return s;
      }
  }