servlet functionality with seam component

[arussel]

Hi,
I am porting a project to seam.
We have a servlet that interface with BusinessObjects.
mapping of *.pdf and *.xls goes to that servlet and it returns rapport from BO in pdf or xls format.
mapping of *.bo return html of the BO rapport.

We would like to have a BO component. We're using facelet. Outputing th e html is easy, we put it in a String and use #{theHtmlString}.
Is there a way to have a link: myRapport.pdf that would call an action from the component and then the component to be able to write to the output steam and set header.

alex

[swd847]

I was asking the same question not long ago. Here is an easy way to return a pdf from an action method (in this case a Jasper Report):

byte[] data = JasperRunManager.runReportToPdf(compileDir
 + report.getReport() + ".jasper", params);

 FacesContext facesContext = FacesContext.getCurrentInstance();
 HttpServletResponse response = (HttpServletResponse) facesContext
 .getExternalContext().getResponse();
 response.setContentType("application/pdf");
 response.setContentLength(data.length);
 response.setHeader("Content-disposition",
 "attachment;filename=report.pdf");

 try {

 OutputStream out = response.getOutputStream();

 out.write(data);

 out.flush();
 out.close();

 facesContext.responseComplete();
 } catch (IOException ex) {
 FacesMessages.instance().add(
 "Error while downloading the file: report.pdf");
 }

[nemya]

Alex
How do you return reports in xls format?