/** Business logic to execute. */
  public VOListResponse loadSupplierPriceItems(
      GridParams pars, String serverLanguageId, String username, ArrayList customizedFields)
      throws Throwable {
    PreparedStatement pstmt = null;
    Connection conn = null;
    try {
      if (this.conn == null) conn = getConn();
      else conn = this.conn;

      BigDecimal rootProgressiveHIE01 =
          (BigDecimal) pars.getOtherGridParams().get(ApplicationConsts.ROOT_PROGRESSIVE_HIE01);
      BigDecimal progressiveHIE01 =
          (BigDecimal) pars.getOtherGridParams().get(ApplicationConsts.PROGRESSIVE_HIE01);
      BigDecimal progressiveHIE02 =
          (BigDecimal) pars.getOtherGridParams().get(ApplicationConsts.PROGRESSIVE_HIE02);
      BigDecimal progressiveREG04 =
          (BigDecimal) pars.getOtherGridParams().get(ApplicationConsts.PROGRESSIVE_REG04);
      String companyCodeSYS01 =
          (String) pars.getOtherGridParams().get(ApplicationConsts.COMPANY_CODE_SYS01);
      String pricelistCodePUR03 =
          (String) pars.getOtherGridParams().get(ApplicationConsts.PRICELIST);

      CompanyHierarchyLevelVO vo =
          (CompanyHierarchyLevelVO) pars.getOtherGridParams().get(ApplicationConsts.TREE_FILTER);
      if (vo != null) {
        progressiveHIE01 = vo.getProgressiveHIE01();
        progressiveHIE02 = vo.getProgressiveHie02HIE01();
      }

      String sql =
          "select PUR02_SUPPLIER_ITEMS.COMPANY_CODE_SYS01,PUR02_SUPPLIER_ITEMS.ITEM_CODE_ITM01,PUR02_SUPPLIER_ITEMS.SUPPLIER_ITEM_CODE,PUR02_SUPPLIER_ITEMS.PROGRESSIVE_REG04,"
              + "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE02,PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE01,PUR02_SUPPLIER_ITEMS.MIN_PURCHASE_QTY,PUR02_SUPPLIER_ITEMS.MULTIPLE_QTY,"
              + "PUR02_SUPPLIER_ITEMS.UM_CODE_REG02,PUR02_SUPPLIER_ITEMS.ENABLED,SYS10_COMPANY_TRANSLATIONS.DESCRIPTION,REG02_MEASURE_UNITS.DECIMALS,"
              + "ITM01_ITEMS.VAT_CODE_REG01,SYS10_VAT.DESCRIPTION,REG01_VATS.DEDUCTIBLE,REG01_VATS.VALUE,"
              + "PUR04_SUPPLIER_PRICES.VALUE,PUR04_SUPPLIER_PRICES.START_DATE,PUR04_SUPPLIER_PRICES.END_DATE,"
              + "ITM01_ITEMS.USE_VARIANT_1,ITM01_ITEMS.USE_VARIANT_2,ITM01_ITEMS.USE_VARIANT_3,ITM01_ITEMS.USE_VARIANT_4,ITM01_ITEMS.USE_VARIANT_5, "
              + "ITM01_ITEMS.NO_WAREHOUSE_MOV "
              + " from PUR02_SUPPLIER_ITEMS,SYS10_COMPANY_TRANSLATIONS,ITM01_ITEMS,REG02_MEASURE_UNITS,SYS10_TRANSLATIONS SYS10_VAT,REG01_VATS,PUR04_SUPPLIER_PRICES where "
              + "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE02=? and "
              + "PUR02_SUPPLIER_ITEMS.UM_CODE_REG02=REG02_MEASURE_UNITS.UM_CODE and "
              + "PUR02_SUPPLIER_ITEMS.COMPANY_CODE_SYS01=ITM01_ITEMS.COMPANY_CODE_SYS01 and "
              + "PUR02_SUPPLIER_ITEMS.ITEM_CODE_ITM01=ITM01_ITEMS.ITEM_CODE and "
              + "ITM01_ITEMS.COMPANY_CODE_SYS01=SYS10_COMPANY_TRANSLATIONS.COMPANY_CODE_SYS01 and "
              + "ITM01_ITEMS.PROGRESSIVE_SYS10=SYS10_COMPANY_TRANSLATIONS.PROGRESSIVE and "
              + "SYS10_COMPANY_TRANSLATIONS.LANGUAGE_CODE=? and "
              + "PUR02_SUPPLIER_ITEMS.COMPANY_CODE_SYS01 = ? and "
              + "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_REG04=? and "
              + "PUR02_SUPPLIER_ITEMS.ENABLED='Y' and "
              + "ITM01_ITEMS.VAT_CODE_REG01=REG01_VATS.VAT_CODE and "
              + "REG01_VATS.PROGRESSIVE_SYS10=SYS10_VAT.PROGRESSIVE and "
              + "SYS10_VAT.LANGUAGE_CODE=? and "
              + "PUR02_SUPPLIER_ITEMS.COMPANY_CODE_SYS01=PUR04_SUPPLIER_PRICES.COMPANY_CODE_SYS01 and "
              + "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_REG04=PUR04_SUPPLIER_PRICES.PROGRESSIVE_REG04 and "
              + "PUR02_SUPPLIER_ITEMS.ITEM_CODE_ITM01=PUR04_SUPPLIER_PRICES.ITEM_CODE_ITM01 and "
              + "PUR04_SUPPLIER_PRICES.PRICELIST_CODE_PUR03=? and "
              + "PUR04_SUPPLIER_PRICES.START_DATE<=? and "
              + "PUR04_SUPPLIER_PRICES.END_DATE>? ";

      if (rootProgressiveHIE01 == null || !rootProgressiveHIE01.equals(progressiveHIE01)) {
        // retrieve all subnodes of the specified node...
        pstmt =
            conn.prepareStatement(
                "select HIE01_COMPANY_LEVELS.PROGRESSIVE,HIE01_COMPANY_LEVELS.PROGRESSIVE_HIE01,HIE01_COMPANY_LEVELS.LEV from HIE01_COMPANY_LEVELS "
                    + "where COMPANY_CODE_SYS01='"
                    + companyCodeSYS01
                    + "' and ENABLED='Y' and PROGRESSIVE_HIE02=? and PROGRESSIVE>=? "
                    + "order by LEV,PROGRESSIVE_HIE01,PROGRESSIVE");
        pstmt.setBigDecimal(1, progressiveHIE02);
        pstmt.setBigDecimal(2, progressiveHIE01);
        ResultSet rset = pstmt.executeQuery();

        HashSet currentLevelNodes = new HashSet();
        HashSet newLevelNodes = new HashSet();
        String nodes = "";
        int currentLevel = -1;
        while (rset.next()) {
          if (currentLevel != rset.getInt(3)) {
            // next level...
            currentLevel = rset.getInt(3);
            currentLevelNodes = newLevelNodes;
            newLevelNodes = new HashSet();
          }
          if (rset.getBigDecimal(1).equals(progressiveHIE01)) {
            newLevelNodes.add(rset.getBigDecimal(1));
            nodes += rset.getBigDecimal(1) + ",";
          } else if (currentLevelNodes.contains(rset.getBigDecimal(2))) {
            newLevelNodes.add(rset.getBigDecimal(1));
            nodes += rset.getBigDecimal(1) + ",";
          }
        }
        rset.close();
        pstmt.close();
        if (nodes.length() > 0) nodes = nodes.substring(0, nodes.length() - 1);
        if (rootProgressiveHIE01 != null || nodes.length() > 0)
          sql += " and PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE01 in (" + nodes + ")";
      }

      Map attribute2dbField = new HashMap();
      attribute2dbField.put("companyCodeSys01PUR02", "PUR02_SUPPLIER_ITEMS.COMPANY_CODE_SYS01");
      attribute2dbField.put("itemCodeItm01PUR02", "PUR02_SUPPLIER_ITEMS.ITEM_CODE_ITM01");
      attribute2dbField.put("supplierItemCodePUR02", "PUR02_SUPPLIER_ITEMS.SUPPLIER_ITEM_CODE");
      attribute2dbField.put("progressiveReg04PUR02", "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_REG04");
      attribute2dbField.put("progressiveHie02PUR02", "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE02");
      attribute2dbField.put("progressiveHie01PUR02", "PUR02_SUPPLIER_ITEMS.PROGRESSIVE_HIE01");
      attribute2dbField.put("minPurchaseQtyPUR02", "PUR02_SUPPLIER_ITEMS.MIN_PURCHASE_QTY");
      attribute2dbField.put("multipleQtyPUR02", "PUR02_SUPPLIER_ITEMS.MULTIPLE_QTY");
      attribute2dbField.put("umCodeReg02PUR02", "PUR02_SUPPLIER_ITEMS.UM_CODE_REG02");
      attribute2dbField.put("enabledPUR02", "PUR02_SUPPLIER_ITEMS.ENABLED");
      attribute2dbField.put("descriptionSYS10", "SYS10_COMPANY_TRANSLATIONS.DESCRIPTION");
      attribute2dbField.put("decimalsREG02", "REG02_MEASURE_UNITS.DECIMALS");

      attribute2dbField.put("vatCodeReg01ITM01", "ITM01_ITEMS.VAT_CODE_REG01");
      attribute2dbField.put("vatDescriptionSYS10", "SYS10_VAT.DESCRIPTION");
      attribute2dbField.put("deductibleREG01", "REG01_VATS.DEDUCTIBLE");
      attribute2dbField.put("valueREG01", "REG01_VATS.VALUE");
      attribute2dbField.put("valuePUR04", "PUR04_SUPPLIER_PRICES.VALUE");
      attribute2dbField.put("startDatePUR04", "PUR04_SUPPLIER_PRICES.START_DATE");
      attribute2dbField.put("endDatePUR04", "PUR04_SUPPLIER_PRICES.END_DATE");

      attribute2dbField.put("useVariant1ITM01", "ITM01_ITEMS.USE_VARIANT_1");
      attribute2dbField.put("useVariant2ITM01", "ITM01_ITEMS.USE_VARIANT_2");
      attribute2dbField.put("useVariant3ITM01", "ITM01_ITEMS.USE_VARIANT_3");
      attribute2dbField.put("useVariant4ITM01", "ITM01_ITEMS.USE_VARIANT_4");
      attribute2dbField.put("useVariant5ITM01", "ITM01_ITEMS.USE_VARIANT_5");

      attribute2dbField.put("noWarehouseMovITM01", "ITM01_ITEMS.NO_WAREHOUSE_MOV");

      ArrayList values = new ArrayList();
      values.add(progressiveHIE02);
      values.add(serverLanguageId);
      values.add(companyCodeSYS01);
      values.add(progressiveREG04);
      values.add(serverLanguageId);
      values.add(pricelistCodePUR03);
      values.add(new java.sql.Date(System.currentTimeMillis()));
      values.add(new java.sql.Date(System.currentTimeMillis()));

      // read from PUR02 table...
      Response answer =
          CustomizeQueryUtil.getQuery(
              conn,
              new UserSessionParameters(username),
              sql,
              values,
              attribute2dbField,
              SupplierPriceItemVO.class,
              "Y",
              "N",
              null,
              pars,
              50,
              true,
              customizedFields);
      if (answer.isError()) throw new Exception(answer.getErrorMessage());
      else return (VOListResponse) answer;

    } catch (Throwable ex) {
      Logger.error(
          username,
          this.getClass().getName(),
          "executeCommand",
          "Error while fetching supplier items list",
          ex);
      throw new Exception(ex.getMessage());
    } finally {
      try {
        pstmt.close();
      } catch (Exception exx) {
      }
      try {
        if (this.conn == null && conn != null) {
          // close only local connection
          conn.commit();
          conn.close();
        }

      } catch (Exception exx) {
      }
    }
  }