Porting Servlets to Portlets

Question

Hi,
I want to port a servlet application to a portlet application. In particular, I want to port this method, which works with Servlets so that it works with Portlets:
public void jasperReport(String name, String type, ResultSet data, Map params) {
// Look up the compiled report design resource
ExternalContext econtext = getExternalContext();
InputStream stream = econtext.getResourceAsStream(PREFIX + name + SUFFIX);
// make sure cursor is in front of the first record
try {
data.beforeFirst();
} catch (Exception e) {
throw new FacesException(e);
// Fill the requested report with the specified data
JRResultSetDataSource ds = new JRResultSetDataSource(data);
JasperPrint jasperPrint = null;
try {
jasperPrint = JasperFillManager.fillReport(stream, params, ds);
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new FacesException(e);
} finally {
try {
stream.close();
} catch (IOException e) {
// Configure the exporter to be used, along with the custom
// parameters specific to the exporter type
JRExporter exporter = null;
HttpServletResponse response = (HttpServletResponse)
econtext.getResponse();
FacesContext fcontext = FacesContext.getCurrentInstance();
try {
response.setContentType(type);
if ("application/pdf".equals(type)) {
exporter = new JRPdfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM,
response.getOutputStream());
} else if ("text/html".equals(type)) {
exporter = new JRHtmlExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER,
response.getWriter());
// Make images available for the HTML output
HttpServletRequest request =
(HttpServletRequest)
fcontext.getExternalContext().getRequest();
request.getSession().setAttribute(
ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE,
jasperPrint);
exporter.setParameter(
JRHtmlExporterParameter.IMAGES_MAP, new HashMap());
// Requires mapping /image to the imageServlet in the web.xml
// This servlet serves up the px images for spacing
exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "image?image=");
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new FacesException(e);
// Enough with the preliminaries ... export the report already
try {
exporter.exportReport();
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new FacesException(e);
// Tell JavaServer Faces that no output is required
fcontext.responseComplete();
Thanks,
Marc
Message was edited by:
marc_nikko

Answer 1

so go ported! Please don't expect people to do work for you here.
If you have problem describe it. If you need where to start google portlet, and if you are still lost on where to begin, be kind and ask "where do I start" here.