private IntervalXYDataset getHistrogrammedDataAttributes(
String[] attributes, long barsize, long timesize) {
IntervalXYDataset dataset = null;
if (no_intervals) {
dataset = new XYSeriesCollection();
} else {
dataset = new YIntervalSeriesCollection();
}
for (int index = 0; index < attributes.length; index++) {
Histogram histogram = new Histogram(barsize);
String attribute = attributes[index];
for (ProcessInstance pi : mylog.getInstances()) {
Date begin;
try {
begin = pi.getAuditTrailEntryList().get(0).getTimestamp();
} catch (Exception e) {
Message.add(e.getMessage(), Message.ERROR);
return null;
} // starting time of process instance
int j = 0;
for (AuditTrailEntry ate : pi.getListOfATEs()) {
if (ate.getAttributes().containsKey(attribute)) {
Double val;
val = Double.valueOf(ate.getAttributes().get(attribute));
if (xbox.getSelectedIndex() == 2) {
histogram.addValue(j, val);
}
if (xbox.getSelectedIndex() == 3) {
histogram.addValue(timediff(begin, ate.getTimestamp()), val);
}
j++;
}
}
}
if (no_intervals) {
((XYSeriesCollection) dataset).addSeries(histogram.getXYSeries(attribute, timesize));
} else {
((YIntervalSeriesCollection) dataset)
.addSeries(histogram.getYIntervalSeries(attribute, timesize));
}
}
return dataset;
}
