Link Item Style to open a PDF hangs if opened in IE in 30 seconds

Question

Hi,
I am using Jdeveloper version 9.0.3.
I have a page in which, I have an advanced table, in which there is a column, with item style - link.
On the link item there is a PPR event and it should open a PDF file, residing on the server.
I am using java code to open the PDF file.
In Internet Explorer, the link doesnt work, infact the Explorer hangs and the user has to exit the window.
This doesnt happen in Firefox. However, this is critical as , use of firefox is not allowed, and the users have to ultimately use IE.
Below is the java code for opening the PDF file from the server:
public void downloadFileFromServer(OAPageContext pageContext, String file_name_with_path, String file_name_with_ext)
HttpServletResponse response = (HttpServletResponse) pageContext.getRenderingContext().getServletResponse();
if (file_name_with_path == null || "".equals(file_name_with_path)){
throw new OAException("File path is invalid.");
File fileToDownload = null;
try{
fileToDownload = new File(file_name_with_path);
}catch (Exception e){
throw new OAException("Invalid File Path or file does not exist.");
if (!fileToDownload.exists()){
throw new OAException("File does not exist.");
if (!fileToDownload.canRead()){
throw new OAException("Not Able to read the file.");
String fileType = getMimeType(file_name_with_ext);
response.setContentType(fileType);
response.setContentLength((int)fileToDownload.length());
response.setHeader("Content-Disposition", "attachment; filename=\"" + file_name_with_ext + "\"");
InputStream in = null;
ServletOutputStream outs = null;
try{
outs = response.getOutputStream();
in = new BufferedInputStream(new FileInputStream(fileToDownload));
int ch;
while ((ch = in.read()) != -1){
outs.write(ch);
}catch (IOException e){
e.printStackTrace();
}finally{
try{
outs.flush();
outs.close();
if (in != null){
in.close();
}catch (Exception e){
e.printStackTrace();
}//end catch
}//end finally
}//end method
public String getMimeType(String s)
int i = s.lastIndexOf(".");
if (i > 0 && i < s.length() - 1){
String s1 = s.substring(i + 1);
if (s1.equalsIgnoreCase("pdf")){
return "application/pdf";
}//end if
}//end if
return "application/octet-stream";
}//end method
Thanks,
AJ

Answer 1

Hi Kristofer,
We did look at the possibility for using messageDownload bean instead of a link, but we do not want to store the file as a LOB.
The file needs to be stored in the server location.
Any clue as to why the file opened in the browser ( on clicking on the link) hangs and this is happening only in IE.
Thanks,
AJ