Пример #1
0
  public Column get_column(String table, String key, ColumnPath column_path, int consistency_level)
      throws InvalidRequestException, NotFoundException {
    if (logger.isDebugEnabled()) logger.debug("get_column");
    ThriftValidation.validateColumnPath(table, column_path);

    QueryPath path = new QueryPath(column_path.column_family, column_path.super_column);
    ColumnFamily cfamily =
        readColumnFamily(
            new SliceByNamesReadCommand(table, key, path, Arrays.asList(column_path.column)),
            consistency_level);
    // TODO can we leverage getSlice here and just check that it returns one column?
    if (cfamily == null) {
      throw new NotFoundException();
    }
    Collection<IColumn> columns = null;
    if (column_path.super_column != null) {
      IColumn column = cfamily.getColumn(column_path.super_column);
      if (column != null) {
        columns = column.getSubColumns();
      }
    } else {
      columns = cfamily.getSortedColumns();
    }
    if (columns == null || columns.size() == 0) {
      throw new NotFoundException();
    }

    assert columns.size() == 1;
    IColumn column = columns.iterator().next();
    if (column.isMarkedForDelete()) {
      throw new NotFoundException();
    }

    return new Column(column.name(), column.value(), column.timestamp());
  }
Пример #2
0
  public List<Column> thriftifyColumns(Collection<IColumn> columns, boolean reverseOrder) {
    if (columns == null || columns.isEmpty()) {
      return EMPTY_COLUMNS;
    }

    ArrayList<Column> thriftColumns = new ArrayList<Column>(columns.size());
    for (IColumn column : columns) {
      if (column.isMarkedForDelete()) {
        continue;
      }
      Column thrift_column = new Column(column.name(), column.value(), column.timestamp());
      thriftColumns.add(thrift_column);
    }

    // we have to do the reversing here, since internally we pass results around in ColumnFamily
    // objects, which always sort their columns in the "natural" order
    if (reverseOrder) Collections.reverse(thriftColumns);
    return thriftColumns;
  }