Hi Matthias, Thanks for your response.
That is one of the puzzling things. neither the commandLink launching the dialog, nor the commandButton that causes the returnFromDialog method to be called uses partial submit. As for the exception resulting from the 2nd process outlined in my original mail, I found this link: http://jira.codehaus.org/browse/JETTY-231 If I understand the message from Greg Wilkins on that page correctly, then according to the JSF spec binary file download cannot take place in the same response as the returnFromDialog instruction, if the latter causes a call to getWriter on the response Stream. Am I interpretting that correctly? Once again, thanks for the support, Kind Regards, Oscar Reitsma On Nov 9, 2007 2:46 PM, Matthias Wessendorf <[EMAIL PROTECTED]> wrote: > I think partialSubmit must be false on the parent component (the one > that contains the listener) > > -M > > On Nov 9, 2007 1:15 PM, Oscar Reitsma <[EMAIL PROTECTED]> wrote: > > Good Day, > > > > I am having an issue downloading a file depending on parameters inputted > on > > a dialog. Perhaps someone could point me in the right direction > > > > Basically required functionality is as follows: > > - A user clicks on a link to generate a report. > > - A dialog pops up where the user can input parameters for the report. > > - The user clicks the OK button > > - The report is generated, and sent to the user as a file download. > > > > Versions: > > MyFaces v1.1.5 > > Trinidad v1.0.3 > > Jetty 6.1.5 > > Firefox: 2.0.0.9 / IE 6.0 > > > > I've tried a few ways of doing this. > > 1. Attempt the generation and download in the dialogs return method. > This > > causes an invalid PPR response (as seen using FireBug) > > > > public void handleDialogReturn(ReturnEvent evt) { > > FacesContext context = FacesContext.getCurrentInstance(); > > > > HttpServletResponse response = > > ( HttpServletResponse ) context.getExternalContext().getResponse(); > > > > OutputStream out = null; > > InputStream in = null; > > try > > { > > in = getService().generateReport( > > selectedReport, getSelectedMonth(), > getSelectedYear(), > > getReportType()); > > > > if (in != null) { > > > > response.setContentType(getReportContentType()); // i.e. > > "application/vnd.ms-excel" > > response.setHeader("Content-Disposition", > > "attachment;filename=\"" > > + selectedReport.getFilename() "); > > > > out = response.getOutputStream(); > > > > int read = -1; > > byte[] buffer = new byte[1024]; > > > > while ((read = in.read(buffer, 0, buffer.length)) != > -1) { > > out.write(buffer, 0, read); > > } > > > > out.flush(); > > } > > } > > catch (IOException ex) { > > > > } > > finally > > { > > try > > { > > out.close(); > > } > > catch (Exception ex) {} > > try > > { > > in.close(); > > } > > catch (Exception ex) {} > > } > > context.responseComplete(); > > } > > > > 2. Try to do the same thing in the actionListener method of the dialog's > > commandButton. The download here works, however, when calling the > > returnFromDialog method, I get the following exception and the > dialog > > remains in view: > > > > Caused by: java.lang.IllegalStateException: STREAM > > at org.mortbay.jetty.Response > > .getWriter(Response.java:583) > > at > > javax.servlet.ServletResponseWrapper.getWriter( > ServletResponseWrapper.java:122) > > at > > > org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit._getHtmlWriter > (CoreRenderKit.java:744) > > at > > > org.apache.myfaces.trinidadinternal.renderkit.core.CoreRenderKit.returnFromDialog > > (CoreRenderKit.java:282) > > at > > > org.apache.myfaces.trinidadinternal.context.DialogServiceImpl.returnFromDialog > (DialogServiceImpl.java:173) > > at > > > org.apache.myfaces.trinidadinternal.context.RequestContextImpl.returnFromDialog > > (RequestContextImpl.java:122) > > > > > > Any comments/suggestions would be highly appreciated, > > > > thanks, > > Oscar > > > > -- > Matthias Wessendorf > > further stuff: > blog: http://matthiaswessendorf.wordpress.com/ > mail: matzew-at-apache-dot-org >
