Buffer Issue with streaming 10 MB file

Question

Hi there,
Having a bit of a nightmare, essentially I have this code:
  private void streamBinaryData(String urlstr,String format,HttpServletResponse response)
        String ErrorStr = null;
        try{
         if(urlstr==null)           
             urlstr = "c:\\video\\hoff.flv";
         File f = new File(urlstr);             
         response.setContentType("video/x-flv");
        response.setHeader ("Content-Disposition", "filename=\"hoff.flv\"");
        Long fileSize = Long.valueOf(f.length());
        response.setContentLength(fileSize.intValue());
        InputStream in = new FileInputStream(f);
        ServletOutputStream outs = response.getOutputStream();
        int bit = 0;
        System.out.println("VIDEO STREAMER: start streaming data");
            while ((bit) != -1) {
                bit = in.read();
                outs.write(bit);
            in.close();
        System.out.println("STREAMER: Finished streaming data");
        outs.flush();
        outs.close();
        catch(Exception e){
                System.out.println("DEBUG: "+ e.toString());
  }which works just fine, but as the server that will be using this code essentially just (90%) will be the use of this servlet to stream .flv files I want to make it more productive by buffering all or some of the file in order to stream.
so essentially I have tried many times and variations around the following sub code:
        InputStream in = new FileInputStream(f);
        ServletOutputStream outs = response.getOutputStream();
        int bit = 0;
        System.out.println("VIDEO STREAMER: start streaming data");
        byte buffer = new byte[fileSize.intValue()];
        outs.write(buffer);
            in.close();
        System.out.println("STREAMER: Finished streaming data");The above pump about 1MB of a 10MB fine, but the hangs and no exception is received, or:
        InputStream in = new FileInputStream(f);
        ServletOutputStream outs = response.getOutputStream();
        System.out.println("VIDEO STREAMER: start streaming data");
        byte buffer = new byte[fileSize.intValue()];
        for(int i=0; i<buffer.length; i++)  {
             outs.write(buffer);
outs.write(buffer);
in.close();
System.out.println("STREAMER: Finished streaming data");
which will pump out around 2-6 MB of the file, with both of the code changes above I can see the file being pumped at a much faster rate, but obviously no good as it does not deliver the whole file.
I know that content length is fine, I have also tried varying the response.setBuffer(int) to larger than 8192 up to fileSize.intValue to allow a buffer to handle the whole file before outputing, all to no avail.
I have also increased the runtime RAM via '-Xmx64m'.
I am developing on a windows tomcat (with netbeans) and the production version is unix based.
Any help that anyone can offer will be greatly appreciated.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

Answer 1

Thanks for the reply.
Hi, yes sorry has missed that (typed the other 2 variations by hand), I have tried buffering part of the file & tried using a BufferedOutputStream.
Neither worked either.
so for example, I used (done before, but hell tried again anyway):
        InputStream in = new FileInputStream(f);
        ServletOutputStream outs = response.getOutputStream();
        System.out.println("VIDEO STREAMER: start streaming data");
        BufferedOutputStream bout = new BufferedOutputStream(outs);
        byte [] buffer = new byte[1024];
        int length=0;
        while( (length = in.read(buffer,0,buffer.length)) > 0)  {
            bout.write(buffer,0,length);
        }this actually does worse as I only receive around 500KB.
Checked the link you provided, useful but the implemented solution is still reading 1 byte at a time, hense far too many reads going on for when the server will be (hopefully) sending out a few files per min..
essentially it seems like the outputstream (whether raw or bufferedOutputStream) is having issues with pumping data that quickly to it !???!?!?
or it's not liking raw bytes and only really working with the bout.write(int) method, the best solution so far has been this use when I mentioned above that I would receive between 4-6 odd MB of the file, this was nice and fast, just never complete.