No joy at all I am afraid; on numerours fromts.
Firstly, I did as David suggested and downloaded a more recent version of
the api - one of the 3.7 beta2 nightly builds - and can report that this did
not solve any of the problems. The basic FormulaEvaluator still did not work
with formulae that span multpile workbooks and the ForkedEvaluator was
limited just to using HSSFWorkbooks and, therefore, the older binary file
format. I even dug into the code this time and saw that Josh has placed into
the code the basics for XSSFWorkbook support but also indicated that to
complete this willrequire some work restructuring the api.
My other idea of capturing the formula myself, parsing it to open the
additional workbook, etc will not work well either. If we had been using the
older binary file format, then all would be well as the name of the workbook
does appear in the formula. Sadly, the same cannot be said when it comes to
the OOXML file format as it refers to the workbook using a number which
refers to an entry in another file of xml markup. I am sure that by
naviagting through the various relationships it would then be possible to
get at this information but this is not a task I am confident in. Having
said that, I will continue to dig around but cannot promise to get any
further with this problem as it is really well beyond my capabilities now.
Yours
Mark B
Siva_Masilamani wrote:
>
> Hi
>
> I am using apache poi api to read data from the excel file and having
> problem with particular data format.
>
> One of the coumns in the excel file had formula type whose value will be
> in the below format
>
> "2001-160101100-22110-0000-000"
>
> Note : the no of digits between each dash and the number of dash itself
> may vary but the format will always be numbers followed by - and end with
> numbers.
>
> The api successfully find the field type as formula and consider it as
> numeric type but it throws NumberFormatException as it contains -.
>
> I am using DataFormat class to read all the numeric cell value as we need
> to read the data as it is (no round up or truncate) in the cell value.
>
> I was going through the genral format available in the api but could not
> understand how to add custom format to the list of available formats.
> I was trying to use DataFormat.addFormat(String,Format) from the api but
> did not understand what to pass in the String argument and how to define
> the Format for this custom format.
>
> Your help is appreciated.
>
>
> public String getCellValue(Cell cell) {
> String retVal;
> if (cell == null) {
> return "";
> }
> switch (cell.getCellType()) {
>
> case Cell.CELL_TYPE_BLANK:
> retVal = "";
> break;
>
> case Cell.CELL_TYPE_BOOLEAN:
> retVal = "" + cell.getBooleanCellValue();
> break;
>
> case Cell.CELL_TYPE_STRING:
> retVal = cell.getStringCellValue();
> System.out.print(retVal + " ");
> break;
>
> case Cell.CELL_TYPE_NUMERIC:
> retVal = isNumberOrDate(cell);
> System.out.print(retVal + " ");
> break;
>
> case Cell.CELL_TYPE_FORMULA:
> retVal = isNumberOrDate(cell);
> System.out.print(retVal + " ");
> break;
>
> default:
> retVal = "";
> }
> return retVal;
> }
>
> private String isNumberOrDate(Cell cell) {
> String retVal;
> if (HSSFDateUtil.isCellDateFormatted(cell)) {
> DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
> retVal = formatter.format(cell.getDateCellValue());
>
> } else {
> DataFormatter df = new DataFormatter();
> //This is where i am trying to add the custom format to the
> list to already available formats.
> //DecimalFormat def=new DecimalFormat("#-#");
> //df.addFormat("", def);
> retVal = df.formatCellValue(cell);
> }
> return retVal;
> }
> public String getCellValue(Cell cell) {
> String retVal;
> if (cell == null) {
> return "";
> }
> switch (cell.getCellType()) {
>
> case Cell.CELL_TYPE_BLANK:
> retVal = "";
> break;
>
> case Cell.CELL_TYPE_BOOLEAN:
> retVal = "" + cell.getBooleanCellValue();
> break;
>
> case Cell.CELL_TYPE_STRING:
> retVal = cell.getStringCellValue();
> System.out.print(retVal + " ");
> break;
>
> case Cell.CELL_TYPE_NUMERIC:
> retVal = isNumberOrDate(cell);
> System.out.print(retVal + " ");
> break;
>
> case Cell.CELL_TYPE_FORMULA:
> retVal = isNumberOrDate(cell);
> System.out.print(retVal + " ");
> break;
>
> default:
> retVal = "";
> }
> return retVal;
> }
>
> private String isNumberOrDate(Cell cell) {
> String retVal;
> if (HSSFDateUtil.isCellDateFormatted(cell)) {
> DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
> retVal = formatter.format(cell.getDateCellValue());
>
> } else {
> DataFormatter df = new DataFormatter();
> //This is where i am trying to add the custom format to the
> list to already available formats.
> //DecimalFormat def=new DecimalFormat("#-#");
> //df.addFormat("", def);
> retVal = df.formatCellValue(cell);
> }
> return retVal;
> }
>
>
> java.lang.NumberFormatException: For input string:
> "2001-160101100-22110-0000-000"
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
> at
> java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1207)
> at java.lang.Double.parseDouble(Double.java:220)
> at
> org.apache.poi.xssf.usermodel.XSSFCell.getNumericCellValue(XSSFCell.java:197)
> at
> org.apache.poi.ss.usermodel.DateUtil.isCellDateFormatted(DateUtil.java:278)
> at
> com.excel.reader.ExcelDataReader.isNumberOrDate(ExcelDataReader.java:166)
> at com.excel.reader.ExcelDataReader.getCellValue(ExcelDataReader.java:154)
> at com.excel.reader.ExcelDataReader.process(ExcelDataReader.java:118)
> at com.excel.reader.ExcelDataReader.main(ExcelDataReader.java:249)
> Exception in thread "main" ACBS 2001 7528080 Java Result: 1
>
>
>
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