package net.sf.layoutParser.typeHandler;
   
   import java.text.ParseException;
   import java.text.SimpleDateFormat;
   import java.util.Date;
   
   import net.sf.layoutParser.exception.ExceptionKey;
   import net.sf.layoutParser.processor.MalformedInputException;
   import net.sf.layoutParser.processor.MalformedOutputException;
  
  /**
   * TODO: Comentar esta classe
   *
   *
   * @author Mário Valentim Junior
   * @since 1.1
   * @date 10/06/2008
   */
  public class DateTypeHandler implements TypeHandler<Date> {
  
  	public String format(Date data, String format, String filler, int size) throws MalformedOutputException {
  		if(format == null){
  			throw new MalformedOutputException( ExceptionKey.PLUGIN_NO_FORMAT, new Object[]{data, Date.class});
  		}
  		
  		SimpleDateFormat dateFormat = new SimpleDateFormat( format );
  		return dateFormat.format(data);
  	}
  
  	public Date parse(String dados, String format, String filler) throws MalformedInputException {
  		SimpleDateFormat dtFormater = new SimpleDateFormat(format);
  		
  		if(hasOnlyFillers(dados, filler)){
  			return null;
  		}
  		
  		try {
  			return dtFormater.parse(dados);
  		} catch (ParseException e) {
  			throw new MalformedInputException(e);
  		}
  	}
  
  	private boolean hasOnlyFillers(String dados, String filler){
  		for (char a : dados.toCharArray()) {
  			String letter = Character.toString(a);
  			if(!letter.equals(filler)){
  				return false;
  			}
  		}
  		
  		return true;
  	}
  }