ImmutableListMultimap.java 文件源码

@GwtIncompatible // java.io.ObjectInputStream
private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {
  stream.defaultReadObject();
  int keyCount = stream.readInt();
  if (keyCount < 0) {
    throw new InvalidObjectException("Invalid key count " + keyCount);
  }
  ImmutableMap.Builder<Object, ImmutableList<Object>> builder = ImmutableMap.builder();
  int tmpSize = 0;

  for (int i = 0; i < keyCount; i++) {
    Object key = stream.readObject();
    int valueCount = stream.readInt();
    if (valueCount <= 0) {
      throw new InvalidObjectException("Invalid value count " + valueCount);
    }

    ImmutableList.Builder<Object> valuesBuilder = ImmutableList.builder();
    for (int j = 0; j < valueCount; j++) {
      valuesBuilder.add(stream.readObject());
    }
    builder.put(key, valuesBuilder.build());
    tmpSize += valueCount;
  }

  ImmutableMap<Object, ImmutableList<Object>> tmpMap;
  try {
    tmpMap = builder.build();
  } catch (IllegalArgumentException e) {
    throw (InvalidObjectException) new InvalidObjectException(e.getMessage()).initCause(e);
  }

  FieldSettersHolder.MAP_FIELD_SETTER.set(this, tmpMap);
  FieldSettersHolder.SIZE_FIELD_SETTER.set(this, tmpSize);
}