private void mapsXmlColumnFamiliesToColumnFamiliesModel(
      org.cassandraunit.dataset.xml.Keyspace xmlKeyspace) {

    if (xmlKeyspace.getColumnFamilies() != null) {
      /* there is column families to integrate */
      for (org.cassandraunit.dataset.xml.ColumnFamily xmlColumnFamily :
          xmlKeyspace.getColumnFamilies().getColumnFamily()) {
        keyspace.getColumnFamilies().add(mapXmlColumnFamilyToColumnFamilyModel(xmlColumnFamily));
      }
    }
  }