public synchronized void updateCategoryTrend(long catId) {
String trendStr = "trend_unknown";
float stdDev = 0.0f;
float lastTrend = 0.0f;
float newTrend = 0.0f;
gatherLatestDatapointsLocking(catId, mHistory);
TimeSeries ts = getSeriesByIdLocking(catId);
if (ts == null) return;
if (ts.getDbRow().getSynthetic() == true) return;
lastTrend = ts.getTrendStats().mTrendPrev;
newTrend = ts.getTrendStats().mTrend;
stdDev = ts.getValueStats().mStdDev;
TrendState state =
Number.getTrendState(lastTrend, newTrend, ts.getDbRow().getGoal(), mSensitivity, stdDev);
trendStr = Number.mapTrendStateToString(state);
mDbh.updateCategoryTrend(catId, trendStr, newTrend);
if (ts.getDependees() != null && ts.getDependees().size() > 0) {
for (int i = 0; i < ts.getDependees().size(); i++) {
TimeSeries dependee = ts.getDependees().get(i);
for (int j = 0; j < dependee.getDependents().size(); j++) {
TimeSeries tmp = dependee.getDependents().get(j);
if (tmp != null) gatherLatestDatapointsLocking(tmp.getDbRow().getId(), mHistory);
}
Formula formula = mFormulaCache.getFormula(dependee.getDbRow().getId());
ArrayList<Datapoint> calculated = formula.apply(dependee.getDependents());
dependee.setDatapoints(null, calculated, null, true);
lastTrend = dependee.getTrendStats().mTrendPrev;
newTrend = dependee.getTrendStats().mTrend;
stdDev = dependee.getValueStats().mStdDev;
state =
Number.getTrendState(
lastTrend, newTrend, dependee.getDbRow().getGoal(), mSensitivity, stdDev);
trendStr = Number.mapTrendStateToString(state);
mDbh.updateCategoryTrend(dependee.getDbRow().getId(), trendStr, newTrend);
}
}
}
