public void readFrom(DataInputStream stream, DataExternalizer<Value> externalizer)
throws IOException {
while (stream.available() > 0) {
final int valueCount = DataInputOutputUtil.readINT(stream);
if (valueCount < 0) {
removeAssociatedValue(
-valueCount); // ChangeTrackingValueContainer marked inputId as invalidated, see
// ChangeTrackingValueContainer.saveTo
setNeedsCompacting(true);
} else {
for (int valueIdx = 0; valueIdx < valueCount; valueIdx++) {
final Value value = externalizer.read(stream);
int idCountOrSingleValue = DataInputOutputUtil.readINT(stream);
if (idCountOrSingleValue > 0) {
addValue(idCountOrSingleValue, value);
} else {
idCountOrSingleValue = -idCountOrSingleValue;
ensureFileSetCapacityForValue(value, idCountOrSingleValue);
int prev = 0;
for (int i = 0; i < idCountOrSingleValue; i++) {
final int id = DataInputOutputUtil.readINT(stream);
addValue(prev + id, value);
prev += id;
}
}
}
}
}
}
