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;
}
}
}
}
}
}
@Override
public void addValue(int inputId, Value value) {
ValueContainerImpl<Value> merged = myMerged;
if (merged != null) {
merged.addValue(inputId, value);
}
ValueContainerImpl<Value> added = myAdded;
if (added == null) {
myAdded = added = new ValueContainerImpl<Value>();
}
added.addValue(
inputId,
value); // will flush the changes & caller should ensure exclusiveness to avoid intermediate
// visibility issues
}
public ValueContainerImpl<T> read(final DataInput in) throws IOException {
DataInputStream stream = (DataInputStream) in;
final ValueContainerImpl<T> valueContainer = new ValueContainerImpl<T>();
while (stream.available() > 0) {
final int valueCount = DataInputOutputUtil.readSINT(in);
if (valueCount < 0) {
valueContainer.removeAllValues(-valueCount);
valueContainer.setNeedsCompacting(true);
} else {
for (int valueIdx = 0; valueIdx < valueCount; valueIdx++) {
final T value = myExternalizer.read(in);
final int idCount = DataInputOutputUtil.readSINT(in);
for (int i = 0; i < idCount; i++) {
final int id = DataInputOutputUtil.readSINT(in);
if (id < 0) {
valueContainer.removeValue(-id, value);
valueContainer.setNeedsCompacting(true);
} else {
valueContainer.addValue(id, value);
}
}
}
}
}
return valueContainer;
}
