code: private static void addDataSeries(final SimpleDateFormat simpleDateFormat,
  			final SimpleDateFormat parseInputDateFormat, final DataSeries dataSeries, final Series series,
  			final Entry<String, List<ViewRiksdagenDocumentTypeDailySummary>> entry) {
  
  		series.addSeries(new XYseries().setLabel(entry.getKey()));
  		dataSeries.newSeries();
  
  		for (final ViewRiksdagenDocumentTypeDailySummary item : entry.getValue()) {
  			if (item != null && item.getEmbeddedId().getPublicDate().length() > 0) {
  				try {
  					dataSeries.add(simpleDateFormat.format(parseInputDateFormat.parse(item.getEmbeddedId().getPublicDate())), item.getTotal());
  				} catch (final ParseException e) {
  					LOGGER.warn("Problem parsing date:{}", item.getEmbeddedId().getPublicDate());
  				}
  
  			}
  		}
  	}
docs: Adds the data series.
  
  @param simpleDateFormat the simple date format
  @param parseInputDateFormat the parse input date format
  @param dataSeries the data series
  @param series the series
  @param entry the entry