/*
* Use this method to create a bare bones Super Column. This super column does
* not have any of the Column information.
*/
private SuperColumn defreezeSuperColumn(DataInputStream dis) throws IOException {
String name = dis.readUTF();
boolean delete = dis.readBoolean();
SuperColumn superColumn = new SuperColumn(name);
if (delete) superColumn.delete();
return superColumn;
}
/*
* Deserialize a particular column since the name is in the form of
* superColumn:column.
*/
public IColumn deserialize(DataInputStream dis, String name, IFilter filter) throws IOException {
if (dis.available() == 0) return null;
String[] names = RowMutation.getColumnAndColumnFamily(name);
if (names.length == 1) {
IColumn superColumn = defreezeSuperColumn(dis);
if (name.equals(superColumn.name())) {
if (!superColumn.isMarkedForDelete()) {
/* read the number of columns stored */
int size = dis.readInt();
/* read the size of all columns */
dis.readInt();
IColumn column = null;
for (int i = 0; i < size; ++i) {
column = Column.serializer().deserialize(dis, filter);
if (column != null) {
superColumn.addColumn(column.name(), column);
column = null;
if (filter.isDone()) {
break;
}
}
}
}
return superColumn;
} else {
/* read the number of columns stored */
dis.readInt();
/* read the size of all columns to skip */
int size = dis.readInt();
dis.skip(size);
return null;
}
}
SuperColumn superColumn = defreezeSuperColumn(dis);
if (!superColumn.isMarkedForDelete()) {
int size = dis.readInt();
/* skip the size of the columns */
dis.readInt();
if (size > 0) {
for (int i = 0; i < size; ++i) {
IColumn subColumn = Column.serializer().deserialize(dis, names[1], filter);
if (subColumn != null) {
superColumn.addColumn(subColumn.name(), subColumn);
break;
}
}
}
}
return superColumn;
}
public void serialize(IColumn column, DataOutputStream dos) throws IOException {
SuperColumn superColumn = (SuperColumn) column;
dos.writeUTF(superColumn.name());
dos.writeBoolean(superColumn.isMarkedForDelete());
Collection<IColumn> columns = column.getSubColumns();
int size = columns.size();
dos.writeInt(size);
/*
* Add the total size of the columns. This is useful to skip over all the
* columns in this super column if we are not interested in this super
* column.
*/
dos.writeInt(superColumn.getSizeOfAllColumns());
// dos.writeInt(superColumn.size());
for (IColumn subColumn : columns) {
Column.serializer().serialize(subColumn, dos);
}
}
public IColumn deserialize(DataInputStream dis) throws IOException {
SuperColumn superColumn = defreezeSuperColumn(dis);
if (!superColumn.isMarkedForDelete()) fillSuperColumn(superColumn, dis);
return superColumn;
}