public void serialize(StreamingHistogram histogram, DataOutput dos) throws IOException {
dos.writeInt(histogram.maxBinSize);
Map<Double, Long> entries = histogram.getAsMap();
dos.writeInt(entries.size());
for (Map.Entry<Double, Long> entry : entries.entrySet()) {
dos.writeDouble(entry.getKey());
dos.writeLong(entry.getValue());
}
}
/**
* Merges given histogram with this histogram.
*
* @param other histogram to merge
*/
public void merge(StreamingHistogram other) {
if (other == null) return;
for (Map.Entry<Double, Long> entry : other.getAsMap().entrySet())
update(entry.getKey(), entry.getValue());
}