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);
}
}
}
private void generateSynthetic(TimeSeries synth) {
Formula formula = mFormulaCache.getFormula(synth.getDbRow().getId());
long ms;
long firstVisibleMs = Long.MAX_VALUE;
long lastVisibleMs = Long.MIN_VALUE;
for (int j = 0; j < synth.getDependents().size(); j++) {
TimeSeries ts = synth.getDependents().get(j);
List<Datapoint> range = ts.getVisible();
if (range != null) {
ms = range.get(0).mMillis;
if (ms < firstVisibleMs) firstVisibleMs = ms;
ms = range.get(range.size() - 1).mMillis;
if (ms > lastVisibleMs) lastVisibleMs = ms;
}
}
ArrayList<Datapoint> calculated = formula.apply(synth.getDependents());
ArrayList<Datapoint> pre = new ArrayList<Datapoint>();
ArrayList<Datapoint> visible = new ArrayList<Datapoint>();
ArrayList<Datapoint> post = new ArrayList<Datapoint>();
for (int j = 0; j < calculated.size(); j++) {
Datapoint d = calculated.get(j);
d.mCatId = synth.getDbRow().getId();
d.mSynthetic = true;
if (d.mMillis < firstVisibleMs) pre.add(d);
else if (d.mMillis <= lastVisibleMs) visible.add(d);
else post.add(d);
}
pre = aggregateDatapoints(pre, synth.getDbRow().getType());
visible = aggregateDatapoints(visible, synth.getDbRow().getType());
post = aggregateDatapoints(post, synth.getDbRow().getType());
synth.setDatapoints(pre, visible, post, true);
}
