private Calendar getDateOnlyCalendar() {
   Calendar calendar = GregorianCalendar.getInstance();
   calendar.set(Calendar.HOUR, 0);
   calendar.set(Calendar.MINUTE, 0);
   calendar.set(Calendar.SECOND, 0);
   calendar.set(Calendar.MILLISECOND, 0);
   return calendar;
 }
  /** Business logic to execute. */
  public final Response executeCommand(
      Object inputPar,
      UserSessionParameters userSessionPars,
      HttpServletRequest request,
      HttpServletResponse response,
      HttpSession userSession,
      ServletContext context) {
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
      conn = ConnectionManager.getConnection(context);

      // fires the GenericEvent.CONNECTION_CREATED event...
      EventsManager.getInstance()
          .processEvent(
              new GenericEvent(
                  this,
                  getRequestName(),
                  GenericEvent.CONNECTION_CREATED,
                  (JAIOUserSessionParameters) userSessionPars,
                  request,
                  response,
                  userSession,
                  context,
                  conn,
                  inputPar,
                  null));

      Response responseVO =
          bean.insertItem(
              conn,
              (JournalHeaderVO) inputPar,
              userSessionPars,
              request,
              response,
              userSession,
              context);
      if (responseVO.isError()) {
        conn.rollback();
        return responseVO;
      }

      if (inputPar instanceof JournalHeaderWithVatVO) {
        JournalHeaderWithVatVO vo = (JournalHeaderWithVatVO) inputPar;

        // insert vat rows in the specified vat register...
        Response regRes =
            vatRegisterAction.insertVatRows(
                conn, vo.getVats(), userSessionPars, request, response, userSession, context);
        if (regRes.isError()) {
          conn.rollback();
          return regRes;
        }

        // retrieve payment instalments...
        Response payRes =
            payAction.executeCommand(
                new LookupValidationParams(vo.getPaymentCodeREG10(), new HashMap()),
                userSessionPars,
                request,
                response,
                userSession,
                context);
        if (payRes.isError()) {
          conn.rollback();
          return payRes;
        }
        PaymentVO payVO = (PaymentVO) ((VOListResponse) payRes).getRows().get(0);
        GridParams gridParams = new GridParams();
        gridParams
            .getOtherGridParams()
            .put(ApplicationConsts.PAYMENT_CODE_REG10, vo.getPaymentCodeREG10());
        payRes =
            paysAction.executeCommand(
                gridParams, userSessionPars, request, response, userSession, context);
        if (payRes.isError()) {
          conn.rollback();
          return payRes;
        }
        java.util.List rows = ((VOListResponse) payRes).getRows();

        // create expirations in DOC19 ONLY if:
        // - there are more than one instalment OR
        // - there is only one instalment and this instalment has more than 0 instalment days
        if (rows.size() > 1
            || (rows.size() == 1
                && ((PaymentInstalmentVO) rows.get(0)).getInstalmentDaysREG17().intValue() > 0)) {

          // retrieve internationalization settings (Resources object)...
          ServerResourcesFactory factory =
              (ServerResourcesFactory) context.getAttribute(Controller.RESOURCES_FACTORY);
          Resources resources = factory.getResources(userSessionPars.getLanguageId());

          PaymentInstalmentVO inVO = null;
          pstmt =
              conn.prepareStatement(
                  "insert into DOC19_EXPIRATIONS(COMPANY_CODE_SYS01,DOC_TYPE,DOC_YEAR,DOC_NUMBER,DOC_SEQUENCE,PROGRESSIVE,DOC_DATE,EXPIRATION_DATE,NAME_1,NAME_2,VALUE,PAYED,DESCRIPTION,CUSTOMER_SUPPLIER_CODE,PROGRESSIVE_REG04,CURRENCY_CODE_REG03) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
          long startTime = vo.getItemDateACC05().getTime(); // item date...
          if (payVO.getStartDayREG10().equals(ApplicationConsts.START_DAY_END_MONTH)) {
            Calendar cal = Calendar.getInstance();
            if (cal.get(cal.MONTH) == 10
                || cal.get(cal.MONTH) == 3
                || cal.get(cal.MONTH) == 5
                || cal.get(cal.MONTH) == 8) cal.set(cal.DAY_OF_MONTH, 30);
            else if (cal.get(cal.MONTH) == 1) {
              if (cal.get(cal.YEAR) % 4 == 0) cal.set(cal.DAY_OF_MONTH, 29);
              else cal.set(cal.DAY_OF_MONTH, 28);
            } else cal.set(cal.DAY_OF_MONTH, 31);
            startTime = cal.getTime().getTime();
          }
          BigDecimal amount = null;

          for (int i = 0; i < rows.size(); i++) {
            inVO = (PaymentInstalmentVO) rows.get(i);
            pstmt.setString(1, vo.getCompanyCodeSys01ACC05());
            pstmt.setString(2, vo.getDocTypeDOC19());
            pstmt.setBigDecimal(3, vo.getItemYearACC05());
            pstmt.setBigDecimal(4, null);
            pstmt.setBigDecimal(5, vo.getDocSequenceDOC19());
            pstmt.setBigDecimal(
                6,
                ProgressiveUtils.getConsecutiveProgressive(
                    "DOC19_EXPIRATIONS", "PROGRESSIVE", conn));
            pstmt.setDate(7, vo.getItemDateACC05());
            pstmt.setDate(
                8,
                new java.sql.Date(
                    startTime
                        + inVO.getInstalmentDaysREG17().longValue()
                            * 86400
                            * 1000)); // expiration date
            pstmt.setString(9, vo.getName_1REG04());
            pstmt.setString(10, vo.getName_2REG04());
            amount =
                vo.getTotalValue()
                    .multiply(inVO.getPercentageREG17())
                    .divide(new BigDecimal(100), BigDecimal.ROUND_HALF_UP)
                    .setScale(vo.getTotalValue().scale(), BigDecimal.ROUND_HALF_UP); // value

            pstmt.setBigDecimal(11, amount);
            pstmt.setString(12, "N");

            if (vo.getDocTypeDOC19().equals(ApplicationConsts.SALE_GENERIC_INVOICE))
              pstmt.setString(
                  13,
                  resources.getResource("sale generic document")
                      + " "
                      + vo.getDocSequenceDOC19()
                      + "/"
                      + vo.getItemYearACC05()
                      + " - "
                      + resources.getResource("valueREG01")
                      + " "
                      + resources.getResource("rateNumberREG17")
                      + " "
                      + (i + 1)
                      + " - "
                      + inVO.getPaymentTypeDescriptionSYS10()); // description
            else
              pstmt.setString(
                  13,
                  resources.getResource("purchase generic document")
                      + " "
                      + vo.getDocSequenceDOC19()
                      + "/"
                      + vo.getItemYearACC05()
                      + " - "
                      + resources.getResource("valueREG01")
                      + " "
                      + resources.getResource("rateNumberREG17")
                      + " "
                      + (i + 1)
                      + " - "
                      + inVO.getPaymentTypeDescriptionSYS10()); // description
            pstmt.setString(14, vo.getCustomerCodeSAL07());
            pstmt.setBigDecimal(15, vo.getProgressiveREG04());
            pstmt.setString(16, vo.getCurrencyCodeREG01());
            pstmt.execute();
          }
          pstmt.close();
        }

        // create an item registration for proceeds, according to expiration settings (e.g. retail
        // selling):
        // there must be only one instalment and this instalment has 0 instalment days
        if (rows.size() == 1
            && ((PaymentInstalmentVO) rows.get(0)).getInstalmentDaysREG17().intValue() == 0) {

          // retrieve internationalization settings (Resources object)...
          ServerResourcesFactory factory =
              (ServerResourcesFactory) context.getAttribute(Controller.RESOURCES_FACTORY);
          Resources resources = factory.getResources(userSessionPars.getLanguageId());

          HashMap map = new HashMap();
          map.put(ApplicationConsts.COMPANY_CODE_SYS01, vo.getCompanyCodeSys01ACC05());
          map.put(ApplicationConsts.PARAM_CODE, ApplicationConsts.CASE_ACCOUNT);
          Response res =
              userParamAction.executeCommand(
                  map, userSessionPars, request, response, userSession, context);
          if (res.isError()) {
            conn.rollback();
            return res;
          }
          String caseAccountCode = ((VOResponse) res).getVo().toString();

          JournalHeaderVO jhVO = new JournalHeaderVO();
          jhVO.setCompanyCodeSys01ACC05(vo.getCompanyCodeSys01ACC05());
          if (vo.getDocTypeDOC19().equals(ApplicationConsts.SALE_GENERIC_INVOICE)) {
            jhVO.setDescriptionACC05(
                resources.getResource("sale generic document")
                    + " "
                    + vo.getDocSequenceDOC19()
                    + "/"
                    + vo.getItemYearACC05()
                    + " - "
                    + resources.getResource("customer")
                    + " "
                    + vo.getName_1REG04()
                    + " "
                    + (vo.getName_2REG04() == null ? "" : vo.getName_2REG04()));
            jhVO.setAccountingMotiveCodeAcc03ACC05(ApplicationConsts.MOTIVE_INVOICE_PROCEEDS);
          } else {
            jhVO.setDescriptionACC05(
                resources.getResource("purchase generic document")
                    + " "
                    + vo.getDocSequenceDOC19()
                    + "/"
                    + vo.getItemYearACC05()
                    + " - "
                    + resources.getResource("supplier")
                    + " "
                    + vo.getName_1REG04()
                    + " "
                    + (vo.getName_2REG04() == null ? "" : vo.getName_2REG04()));
            jhVO.setAccountingMotiveCodeAcc03ACC05(ApplicationConsts.MOTIVE_PURCHASE_INVOICE_PAYED);
          }

          jhVO.setItemDateACC05(new java.sql.Date(System.currentTimeMillis()));
          jhVO.setItemYearACC05(new BigDecimal(Calendar.getInstance().get(Calendar.YEAR)));

          JournalRowVO jrVO = new JournalRowVO();
          jrVO.setCompanyCodeSys01ACC06(jhVO.getCompanyCodeSys01ACC05());
          if (vo.getDocTypeDOC19().equals(ApplicationConsts.SALE_GENERIC_INVOICE)) {
            jrVO.setAccountCodeAcc02ACC06(vo.getCreditAccountCodeAcc02SAL07());
            jrVO.setAccountCodeACC06(vo.getCustomerCodeSAL07());
            jrVO.setAccountCodeTypeACC06(ApplicationConsts.ACCOUNT_TYPE_CUSTOMER);
            jrVO.setCreditAmountACC06(vo.getTotalValue());
          } else {
            jrVO.setAccountCodeAcc02ACC06(vo.getDebitAccountCodeAcc02PUR01());
            jrVO.setAccountCodeACC06(vo.getSupplierCodePUR01());
            jrVO.setAccountCodeTypeACC06(ApplicationConsts.ACCOUNT_TYPE_SUPPLIER);
            jrVO.setDebitAmountACC06(vo.getTotalValue());
          }
          jrVO.setDescriptionACC06("");
          jrVO.setItemYearAcc05ACC06(jhVO.getItemYearACC05());
          jrVO.setProgressiveAcc05ACC06(jhVO.getProgressiveACC05());
          jhVO.addJournalRow(jrVO);

          jrVO = new JournalRowVO();
          jrVO.setCompanyCodeSys01ACC06(jhVO.getCompanyCodeSys01ACC05());
          jrVO.setAccountCodeAcc02ACC06(caseAccountCode);
          jrVO.setAccountCodeACC06(caseAccountCode);
          jrVO.setAccountCodeTypeACC06(ApplicationConsts.ACCOUNT_TYPE_ACCOUNT);
          if (vo.getDocTypeDOC19().equals(ApplicationConsts.SALE_GENERIC_INVOICE)) {
            jrVO.setDebitAmountACC06(vo.getTotalValue());
          } else {
            jrVO.setCreditAmountACC06(vo.getTotalValue());
          }
          jrVO.setDescriptionACC06("");
          jrVO.setItemYearAcc05ACC06(jhVO.getItemYearACC05());
          jrVO.setProgressiveAcc05ACC06(jhVO.getProgressiveACC05());
          jhVO.addJournalRow(jrVO);
          Response proceedsRes =
              bean.insertItem(conn, jhVO, userSessionPars, request, response, userSession, context);
          if (proceedsRes.isError()) {
            conn.rollback();
            return proceedsRes;
          }
        }
      }

      Response answer = responseVO;

      // fires the GenericEvent.BEFORE_COMMIT event...
      EventsManager.getInstance()
          .processEvent(
              new GenericEvent(
                  this,
                  getRequestName(),
                  GenericEvent.BEFORE_COMMIT,
                  (JAIOUserSessionParameters) userSessionPars,
                  request,
                  response,
                  userSession,
                  context,
                  conn,
                  inputPar,
                  answer));

      conn.commit();

      // fires the GenericEvent.AFTER_COMMIT event...
      EventsManager.getInstance()
          .processEvent(
              new GenericEvent(
                  this,
                  getRequestName(),
                  GenericEvent.AFTER_COMMIT,
                  (JAIOUserSessionParameters) userSessionPars,
                  request,
                  response,
                  userSession,
                  context,
                  conn,
                  inputPar,
                  answer));

      return answer;
    } catch (Throwable ex) {
      Logger.error(
          userSessionPars.getUsername(),
          this.getClass().getName(),
          "executeCommand",
          "Error while inserting a new item in the journal",
          ex);
      try {
        conn.rollback();
      } catch (Exception ex3) {
      }
      return new ErrorResponse(ex.getMessage());
    } finally {
      try {
        pstmt.close();
      } catch (Exception ex2) {
      }
      try {
        ConnectionManager.releaseConnection(conn, context);
      } catch (Exception ex1) {
      }
    }
  }