How to use

getColumns

method

in

org.supercsv.io.CsvMapReader

/**
 * {@inheritDoc}
 */
public Map<String, String> read(final String... nameMapping) throws IOException {
  
  if( nameMapping == null ) {
    throw new NullPointerException("nameMapping should not be null");
  }
  
  if( readRow() ) {
    final Map<String, String> destination = new HashMap<String, String>();
    Util.filterListToMap(destination, nameMapping, getColumns());
    return destination;
  }
  
  return null; // EOF
}

  /**
   * {@inheritDoc}
   */
  public Map<String, Object> read(final String[] nameMapping, final CellProcessor[] processors) throws IOException {
    
    if( nameMapping == null ) {
      throw new NullPointerException("nameMapping should not be null");
    } else if( processors == null ) {
      throw new NullPointerException("processors should not be null");
    }
    
    if( readRow() ) {
      // process the columns
      final List<Object> processedColumns = executeProcessors(new ArrayList<Object>(getColumns().size()),
        processors);
      
      // convert the List to a Map
      final Map<String, Object> destination = new HashMap<String, Object>(processedColumns.size());
      Util.filterListToMap((Map<String, Object>) destination, nameMapping, (List<Object>) processedColumns);
      return destination;
    }
    
    return null; // EOF
  }
}