How to get the actual data of a file held in IWDResource object?

Question

Hello,
I am uploading a csv/excel file and writing it to the server using the FuleUpload UI and IWDResource Interface.
I need to make some things on the data before I write it:
1. count the number of columns are in the csv/excel file in each line.
2. replace special characters in the file using replaceAll for example.
My problem is how to access the data once it is stored in the IWDResource interface? All I have there is the read method which generated an InputStream object to read bytes from the file.
Any ideas?
Roy

Answer 1

If you want to read cell level or row level data from excel you should use third party APIs. Apache POI provides such an API, you can use and read the excel documents. You can refer the POI API
<a href="http://poi.apache.org/hssf/quick-guide.html#ReadWriteWorkbook">here</a>.
And if you want to read the CSV file content do the following..
FileInputStream fis=(FileInputStream)wdContext.currentContextElement().get<attribute anme>().read(false);
byte in[]      = new byte[512];
String csvData;
StringBuffer csvBuffer = new StringBuffer();
while(fis.read(in)>0)
csvData = new String(in);
csvBuffer.append(csvData);
//now write the logic to validate the csv data.
Regards
Abhilash