Iowagie - How do I pass in parameter values to an event handler -onEndPage?

Question

Hi,
I have spent a while on this and is getting quite frustrating, so any help much appreciated.
I am trying to create a footer on each of my PDF pages that will contain an image and a table. I have successfully created a separate class to my servlet, EndPage.java that contains an onEndPage() method. The problem is, I need to pass in three parameter values into this method, storeNo, langId and transNo.
How do I go about doing this?
PDFPrint.java
public class PDFPrint extends HttpServlet {
    private ByteArrayOutputStream getDoc(ByteArrayOutputStream baos, HttpServletRequest requ, String transNo, String storeNo, String langId)     {
        HttpSession session = requ.getSession();
        Document document = new Document();                    
        PdfWriter writer = PdfWriter.getInstance(document, baos);
        writer.setPageEvent(new EndPage());     
        document.open();
}EndPage.java
public class EndPage extends PdfPageEventHelper {
    public void onEndPage(PdfWriter writer, Document document) {
        try {
            Rectangle page = document.getPageSize();
            PdfPTable head = new PdfPTable(3);
            PdfPCell cell1 = new PdfPCell(new Phrase("Pueblo Nativo S.A. de C.V", FontFactory.getFont(FontFactory.HELVETICA, 17f)));
            cell1.setHorizontalAlignment(Element.ALIGN_LEFT);
            cell1.setBorder(0);
            for (int k = 1; k <= 1; ++k)
                 head.addCell(cell1);
            head.setTotalWidth(page.width() - document.leftMargin() - document.rightMargin());
            head.writeSelectedRows(0, -1, document.leftMargin(), page.height() - document.topMargin() + head.getTotalHeight(),
                      writer.getDirectContent());
            PdfPTable foot = new PdfPTable(1);
            PdfPCell cell = new PdfPCell(new Phrase("Disclaimer to go here.", FontFactory.getFont(FontFactory.HELVETICA, 17f)));          
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
            cell.setBorder(0);
            for (int k = 1; k <= 1; ++k)
                 foot.addCell(cell);
            foot.setTotalWidth(page.width() - document.leftMargin() - document.rightMargin());
            foot.writeSelectedRows(0, -1, document.leftMargin(), document.bottomMargin(),
            writer.getDirectContent());
        catch (Exception e) {
            throw new ExceptionConverter(e);
     public static void main(String[] args) {
}Thanks!

Answer 1

Try adding that information data as properties to the HTTP session.
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
HttpSession session = (HttpSession)externalContext.getSession(false);
session.setAttribute("stornNo", storeNo);
session.setAttribute("langId", langId);
session.setAttribure("transNo", transNo);In PDFPrint, you can get those properties using session's getAttribute method, and pass them to the constructor or as parameters to onEndPage.