lineChart.setStart(startDate);
lineChart.setStep(step * TimeHelper.ONE_MINUTE);
PieChart pieChart = new PieChart();
List<PieChart.Item> items = new ArrayList<PieChart.Item>();
pieChart.addItems(items);
for (Entry<String, double[]> entry : dataWithOutFutures.entrySet()) {
String key = entry.getKey();
double[] value = entry.getValue();
Map<Long, Double> all = convertToMap(datas.get(key), startDate, 1);
Map<Long, Double> current = convertToMap(dataWithOutFutures.get(key), startDate, step);