/**
   * Creates the needed JEVis structure
   *
   * @param buildingId building node id, where the structure has to be created
   *     <p>TODO Enable mysql server TODO Add units
   */
  public void createStructure(long buildingId) {

    ObjectAndBoolean dsd =
        createObjectCheckNameExistance(
            buildingId, "Data Source Directory", "Data Source Directory");

    ObjectAndBoolean mysqlServer =
        createObjectCheckNameExistance(
            dsd.getJEVisObject().getID(), "MySQL Server", "MySQL Server");

    if (mysqlServer.isNew) {
      long id = mysqlServer.getJEVisObject().getID();
      writeToJEVis(id, "Schema", _schema);
      writeToJEVis(id, "User", _dbUser);
      writeToJEVis(id, "Port", _port);
      writeToJEVis(id, "Host", _host);
      writeToJEVis(id, "Password", _dbPW);
      writeToJEVis(id, "Enabled", true);
    }

    ObjectAndBoolean dataDirectory =
        createObjectCheckNameExistance(buildingId, "Data Directory", "Data Directory");

    for (Sensor sensor : _result) {
      ObjectAndBoolean sqlChannelDir =
          createObjectCheckNameExistance(
              mysqlServer.getJEVisObject().getID(),
              "SQL Channel Directory",
              sensor.getName() + "_" + sensor.getSymbol());
      ObjectAndBoolean channel =
          createObjectCheckNameExistance(
              sqlChannelDir.getJEVisObject().getID(), "SQL Channel", "SQL Channel");
      if (channel.isNew) {
        long id = channel.getJEVisObject().getID();

        writeToJEVis(id, "Column Timestamp", "time");
        writeToJEVis(id, "Column Value", "value");
        writeToJEVis(id, "Table", sensor.getTable());
        writeToJEVis(id, "Timestamp Format", "yyyy-MM-dd HH:mm:ss.s");
      }

      ObjectAndBoolean sqlDPD =
          createObjectCheckNameExistance(
              channel.getJEVisObject().getID(), "SQL Data Point Directory", "DPD");
      ObjectAndBoolean sqlDP =
          createObjectCheckNameExistance(sqlDPD.getJEVisObject().getID(), "SQL Data Point", "DP");
      ObjectAndBoolean device =
          createObjectCheckNameExistance(
              dataDirectory.getJEVisObject().getID(), "Device", sensor.getName());
      if (device.isNew) {
        long id = device.getJEVisObject().getID();
        writeToJEVis(id, "MAC", sensor.getName());
      }
      ObjectAndBoolean data =
          createObjectCheckNameExistance(
              device.getJEVisObject().getID(), "Data", sensor.getSymbol());

      try {
        JEVisAttribute attributeValue = data.getJEVisObject().getAttribute("Value");
        attributeValue.setDisplayUnit(
            new JEVisUnitImp(Unit.valueOf(sensor.getUnit()), "", JEVisUnit.Prefix.NONE));
        attributeValue.setInputUnit(
            new JEVisUnitImp(Unit.valueOf(sensor.getUnit()), "", JEVisUnit.Prefix.NONE));
        attributeValue.commit();
      } catch (JEVisException ex) {
        Logger.getLogger(WiotechStructureCreator.class.getName()).log(Level.SEVERE, null, ex);
      }

      if (data.isNew) {
        writeToJEVis(
            sqlDP.getJEVisObject().getID(), "Target", data.getJEVisObject().getID().toString());
      }
    }
  }