private Duration aggregateDurations(List<? extends IntervalBase> intervals) {
Duration aggregatedDuration = new Duration(0);
for (IntervalBase interval : intervals) {
aggregatedDuration = aggregatedDuration.plus(interval.getDuration());
}
return aggregatedDuration;
}
private void addIntervals(IntervalManager intervalManager) {
for (IntervalBase interval : intervalPersister.readIntervals()) {
interval.setClosed();
intervals.add(interval);
}
intervals.addAll(intervalManager.getOpenIntervals());
}
private void adjustIntervalStartAndEndDate(
DateTime thresholdDateView, IntervalBase interval, IntervalBase clonedInterval) {
if (interval.getStart().before(thresholdDateView.toDate())) {
// Set start of the interval to threshold if the start is
// before the threshold.
clonedInterval.setStartTime(thresholdDateView.toDate());
}
if (!clonedInterval.isClosed()) {
clonedInterval.setEndTime(mostRecentDate);
}
}
/**
* Filters out and removes intervals which are older than 10 hours from Database. Filters
* intervals for selected time span.
*/
private void filterIntervals() {
ArrayList<IntervalBase> filteredIntervals = new ArrayList<IntervalBase>();
ArrayList<IntervalBase> intervalsToRemove = new ArrayList<IntervalBase>();
if (intervals.size() == 0) {
return;
}
mostRecentDate = intervals.get(intervals.size() - 1).getEnd();
DateTime thresholdDateDatabase = new DateTime(mostRecentDate);
thresholdDateDatabase = thresholdDateDatabase.minusMinutes(FILTERED_INTERVALS_IN_MINUTES);
DateTime thresholdDateView = new DateTime(mostRecentDate);
thresholdDateView = thresholdDateView.minusMinutes(selectedInterval.minutes);
for (IntervalBase interval : intervals) {
if (intervalIsOlderThanThreshold(thresholdDateDatabase, interval)) {
intervalsToRemove.add(interval);
continue;
}
if (!intervalIsOlderThanThreshold(thresholdDateView, interval)) {
IntervalBase clonedInterval = null;
try {
clonedInterval = (IntervalBase) interval.clone();
adjustIntervalStartAndEndDate(thresholdDateView, interval, clonedInterval);
filteredIntervals.add(clonedInterval);
} catch (CloneNotSupportedException e) {
// intentionally empty
}
}
}
oldestDate = filteredIntervals.get(0).getStart();
intervalPersister.removeIntervals(intervalsToRemove);
intervals = filteredIntervals;
}
private boolean intervalIsOlderThanThreshold(
DateTime thresholdDateDatabase, IntervalBase interval) {
return interval.getEnd().before(thresholdDateDatabase.toDate());
}
private boolean isClosed(IntervalBase interval) {
return interval == null || interval.isClosed();
}
private boolean intervalIsOfType(IntervalBase interval, IntervalType type) {
return interval != null && interval.getType() == type;
}