package com.opencsv.bean;
   
   import com.opencsv.ICSVParser;
   import com.opencsv.exceptions.CsvDataTypeMismatchException;
   import org.apache.commons.lang3.StringUtils;
   
   import java.util.Currency;
   import java.util.Locale;
   import java.util.ResourceBundle;
  
  /**
   * This class converts an input ISO 4217 currency code to a {@link java.util.Currency}
   * instance.
   *
   * @author Andrew Munn
   * @since 5.3
   */
  public class ConverterCurrency extends AbstractCsvConverter {
  
      /**
       * Initializes the class.
       * @param errorLocale     The locale to use for error messages
       */
      public ConverterCurrency(Locale errorLocale) {
          super(Currency.class, null, null, errorLocale);
      }
  
      /**
       * @param value The ISO 4217 currency code string to be converted
       * @return {@link java.util.Currency} instance
       */
      @Override
      public Object convertToRead(String value) throws CsvDataTypeMismatchException {
          Currency c = null;
          if (StringUtils.isNotEmpty(value)) {
              try {
                  c = Currency.getInstance(value);
              } catch (IllegalArgumentException e) {
                  CsvDataTypeMismatchException csve = new CsvDataTypeMismatchException(value, type, String.format(
                          ResourceBundle.getBundle(ICSVParser.DEFAULT_BUNDLE_NAME, this.errorLocale).getString("invalid.currency.value"),
                          value, type.getName()));
                  csve.initCause(e);
                  throw csve;
              }
  
          }
          return c;
      }
  
      /**
       * Converts {@link java.util.Currency} instance to a string.
       *
       * @param value The {@link java.util.Currency} instance
       * @return ISO 4217 currency code or {@code null} if value was {@code null}
       * @throws CsvDataTypeMismatchException If the value is not a {@link java.util.Currency}
       */
      @Override
      public String convertToWrite(Object value) throws CsvDataTypeMismatchException {
          String result = null;
          if (value != null) {
              Currency c = (Currency) value;
              result = c.getCurrencyCode();
          }
          return result;
      }
  }