RE: Streaming SVG Document without creating temporary file

[Javid Alimohideen]

Hi Dylan, When you say streaming, do you mean something like streaming animation, or its just a dynamic document that is rendered on the server side.. The way I do it in my application I render the SVG on the server side and just stream the pixels to the client side (application, or a browser window). You could acheive the same with servlet too. If you would like to do offscreen server side rendering, take a look at the Batik wiki pages.   Thanks, Javid -----Original Message----- From: Dylan Browne [mailto:[EMAIL PROTECTED] Sent: Monday, June 19, 2006 6:26 AM To: batik-users@xmlgraphics.apache.org Subject: Streaming SVG Document without creating temporary file Hi,   I was looking for way to improve my code where I stream an SVG Document (created using Batik DOM) to a browser. So basically I need to get from SVG Document to a byte[] which can be passed via Servlet which sets the Mime type, and so displayed.   Currently I use my method below, but as part of this method I am creating a file object and retrieving my byte[] from that. Ideally (it may actually become a requirement) I’d like to avoid this step and be able to retrieve a byte[] without creating a file object.   Thanks in advance for any help,   Regards, Dylan           public static void streamSVGIntoImageFormat(HttpSession session, Document doc, String mimeType) {         try {             ImageTranscoder t = null;             if (mimeType.equals(Config.JPEG)) {                 t = new JPEGTranscoder();                 t.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(.8));             } else if (mimeType.equals(Config.PNG)) {                 t = new PNGTranscoder();             } else if (mimeType.equals(Config.TIFF)) {                 t = new TIFFTranscoder();             } else {                 System.out.println("ERROR: A request to stream an image was recieved with an unsupported mime type: " + mimeType);                 return;             }             TranscoderInput input = new TranscoderInput(doc);             OutputStream ostream = new FileOutputStream("c:\\out." + mimeType);             TranscoderOutput output = new TranscoderOutput(ostream);             t.transcode(input, output);             ostream.flush();             ostream.close();             byte[] bytes = getBytesFromFile(new File("c:\\out." + mimeType));             session.setAttribute("jpegbytes", bytes);             session.setAttribute("mimeType", mimeType);         } catch (Exception e) {             e.printStackTrace();             System.out.println("Error in streaming SVG because " + e.getMessage());         }     }