public void printWorksheetContent() throws Exception {
    FrontDesk desk = FrontDesk.getInstance();

    // read policy & rule
    DynamicPolicy policy = SifMarshaller.unmarshal(new File(policyPath));

    @SuppressWarnings("unchecked")
    DynamicInspectionRequest<Workbook> req =
        (DynamicInspectionRequest<Workbook>)
            desk.requestNewDynamicInspection("fubar", new File(filepath));
    FrontDesk.getInstance().scan();
    FrontDesk.getInstance().register(policy);
    FrontDesk.getInstance().setPolicy(policy);

    DynamicPolicyRule rule = (DynamicPolicyRule) policy.getRuleByName("greaterThan0");
    assertTrue("No rule with name \"greaterThan0\" was found", rule != null);

    // write TestInput in PoiWorkbook
    POIWriter writer = new POIWriter();
    writer.insertTestInput(rule, req.getExternalSpreadsheet());
    Workbook wb = req.getExternalSpreadsheet();

    Sheet sheet1 = wb.getSheetAt(0);
    for (Row row : sheet1) {
      for (Cell cell : row) {
        CellReference cellRef = new CellReference(row.getRowNum(), cell.getColumnIndex());
        System.out.print(row.getRowNum() + ", " + cell.getColumnIndex());
        System.out.print(" - ");
        System.out.print(cellRef.formatAsString());
        System.out.print(" - ");

        switch (cell.getCellType()) {
          case Cell.CELL_TYPE_STRING:
            System.out.println(cell.getRichStringCellValue().getString());
            break;
          case Cell.CELL_TYPE_NUMERIC:
            if (DateUtil.isCellDateFormatted(cell)) {
              System.out.println(cell.getDateCellValue());
            } else {
              System.out.println(cell.getNumericCellValue());
            }
            break;
          case Cell.CELL_TYPE_BOOLEAN:
            System.out.println(cell.getBooleanCellValue());
            break;
          case Cell.CELL_TYPE_FORMULA:
            System.out.println(cell.getCellFormula());
            break;
          default:
            System.out.println();
        }
      }
    }
  }
  /**
   * Test method for {@link
   * sif.IO.spreadsheet.poi.POIWriter#insertTestInput(sif.model.policy.policyrule.DynamicPolicyRule,
   * sif.model.inspection.DynamicInspectionRequest)} .
   *
   * @throws Exception
   */
  @Test
  public void testInsertTestInput() throws Exception {
    FrontDesk desk = FrontDesk.getInstance();

    // read policy & rule
    File spreadsheetFile = new File(filepath);
    DynamicPolicy policy = SifMarshaller.unmarshal(new File(policyPath));
    @SuppressWarnings("unchecked")
    DynamicInspectionRequest<Workbook> req =
        (DynamicInspectionRequest<Workbook>)
            desk.requestNewDynamicInspection("TestInputInsertionTest", spreadsheetFile);
    FrontDesk.getInstance().scan();
    FrontDesk.getInstance().register(policy);
    FrontDesk.getInstance().setPolicy(policy);

    DynamicPolicyRule rule = (DynamicPolicyRule) policy.getRuleByName("greaterThan0");
    assertTrue("No rule with name \"greaterThan0\" was found", rule != null);

    // write TestInput in PoiWorkbook
    POIWriter writer = new POIWriter();
    writer.insertTestInput(rule, req.getExternalSpreadsheet());
    Workbook wb = req.getExternalSpreadsheet();

    CellReference cellRef = new CellReference(inputCell1);
    Sheet sheet2 = wb.getSheet(cellRef.getSheetName());
    Row row = sheet2.getRow(cellRef.getRow());
    Cell cell = row.getCell(cellRef.getCol());

    System.out.println(cell.toString());
    assertTrue(cell.toString().equals(expectedValue1.toString()));

    cellRef = new CellReference(inputCell2);
    sheet2 = wb.getSheet(cellRef.getSheetName());
    row = sheet2.getRow(cellRef.getRow());
    cell = row.getCell(cellRef.getCol());

    System.out.println(cell.toString());
    assertTrue(cell.toString().equals(expectedValue2.toString()));

    cellRef = new CellReference(resultCell);
    sheet2 = wb.getSheet(cellRef.getSheetName());
    row = sheet2.getRow(cellRef.getRow());
    cell = row.getCell(cellRef.getCol());

    // Just for information print result
    FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();

    if (cell != null) {
      switch (evaluator.evaluateFormulaCell(cell)) {
        case Cell.CELL_TYPE_BOOLEAN:
          System.out.println(cell.getBooleanCellValue());
          break;
        case Cell.CELL_TYPE_NUMERIC:
          System.out.println(cell.getNumericCellValue());
          break;
        case Cell.CELL_TYPE_STRING:
          System.out.println(cell.getStringCellValue());
          break;
        case Cell.CELL_TYPE_BLANK:
          break;
        case Cell.CELL_TYPE_ERROR:
          System.out.println(cell.getErrorCellValue());
          break;

          // CELL_TYPE_FORMULA will never occur
        case Cell.CELL_TYPE_FORMULA:
          break;
      }
    }
  }