/** {@inheritDoc} */
@Override
public void accumulate(NamedList stv) {
if (computeCount) {
count += (Long) stv.get("count");
}
if (computeMissing) {
missing += (Long) stv.get("missing");
}
if (computeCalcDistinct) {
distinctValues.addAll((Collection<T>) stv.get("distinctValues"));
countDistinct = distinctValues.size();
}
if (computeMinOrMax) {
updateMinMax((T) stv.get("min"), (T) stv.get("max"));
}
if (computeCardinality) {
byte[] data = (byte[]) stv.get("cardinality");
HLL other = HLL.fromBytes(data);
if (hll.getType().equals(HLLType.EMPTY)) {
// The HLL.union method goes out of it's way not to modify the "other" HLL.
// Which means in the case of merging into an "EMPTY" HLL (garunteed to happen at
// least once in every coordination of shard requests) it always clones all
// of the internal storage -- but since we're going to throw "other" away after
// the merge, this just means a short term doubling of RAM that we can skip.
hll = other;
} else {
hll.union(other);
}
}
updateTypeSpecificStats(stv);
NamedList f = (NamedList) stv.get(FACETS);
if (f == null) {
return;
}
for (int i = 0; i < f.size(); i++) {
String field = f.getName(i);
NamedList vals = (NamedList) f.getVal(i);
Map<String, StatsValues> addTo = facets.get(field);
if (addTo == null) {
addTo = new HashMap<>();
facets.put(field, addTo);
}
for (int j = 0; j < vals.size(); j++) {
String val = vals.getName(j);
StatsValues vvals = addTo.get(val);
if (vvals == null) {
vvals = StatsValuesFactory.createStatsValues(statsField);
addTo.put(val, vvals);
}
vvals.accumulate((NamedList) vals.getVal(j));
}
}
}
/** {@inheritDoc} */
@Override
public NamedList<?> getStatsValues() {
NamedList<Object> res = new SimpleOrderedMap<>();
if (statsField.includeInResponse(Stat.min)) {
res.add("min", min);
}
if (statsField.includeInResponse(Stat.max)) {
res.add("max", max);
}
if (statsField.includeInResponse(Stat.count)) {
res.add("count", count);
}
if (statsField.includeInResponse(Stat.missing)) {
res.add("missing", missing);
}
if (statsField.includeInResponse(Stat.distinctValues)) {
res.add("distinctValues", distinctValues);
}
if (statsField.includeInResponse(Stat.countDistinct)) {
res.add("countDistinct", countDistinct);
}
if (statsField.includeInResponse(Stat.cardinality)) {
if (statsField.getIsShard()) {
res.add("cardinality", hll.toBytes());
} else {
res.add("cardinality", hll.cardinality());
}
}
addTypeSpecificStats(res);
if (!facets.isEmpty()) {
// add the facet stats
NamedList<NamedList<?>> nl = new SimpleOrderedMap<>();
for (Map.Entry<String, Map<String, StatsValues>> entry : facets.entrySet()) {
NamedList<NamedList<?>> nl2 = new SimpleOrderedMap<>();
nl.add(entry.getKey(), nl2);
for (Map.Entry<String, StatsValues> e2 : entry.getValue().entrySet()) {
nl2.add(e2.getKey(), e2.getValue().getStatsValues());
}
}
res.add(FACETS, nl);
}
return res;
}
public void accumulate(T value, int count) {
assert null != value : "Can't accumulate null";
if (computeCount) {
this.count += count;
}
if (computeCalcDistinct) {
distinctValues.add(value);
countDistinct = distinctValues.size();
}
if (computeMinOrMax) {
updateMinMax(value, value);
}
if (computeCardinality) {
if (null == hasher) {
assert value instanceof Number : "pre-hashed value support only works with numeric longs";
hll.addRaw(((Number) value).longValue());
} else {
hll.addRaw(hash(value));
}
}
updateTypeSpecificStats(value, count);
}
