Re: Return BLOB Value

[Jeroen ter Voorde]

Title: Return BLOB Value

You can use a Reader to implement this (That's what i did).   (Stripped) Example:   public class Reader extends AbstractReader implements Poolable, Composable {    Request request = null;  Response response = null;  Context context = null;  ComponentManager manager = null;    public void setup(SourceResolver resolver, Map objectModel, String src, Parameters par) throws ProcessingException, SAXException, IOException {   super.setup(resolver, objectModel, src, par);   context = ObjectModelHelper.getContext(objectModel);   request = ObjectModelHelper.getRequest(objectModel);   response = ObjectModelHelper.getResponse(objectModel);  }     public void generate() throws IOException, SAXException, ProcessingException {        try {     response.setHeader("Cache-Control", "no-cache");     response.setHeader("Pragma", "no-cache");     response.setDateHeader("Expires", 0);      // out is the outputstream to write your blob data to.       ((OutputStream)out).write('The blob data');    }   } catch (Exception e) {       throw new ProcessingException("Error in reader: "+e);   }  }    public String getMimeType() {   return context.getMimeType(source.substring(source.lastIndexOf("/") + 1));  } }   ----- Original Message ----- From: Sascha Kulawik To: [EMAIL PROTECTED] Sent: Friday, July 26, 2002 10:07 PM Subject: Return BLOB Value Hello, I'm trying to implement a File-Upload / Download for a small Forum written in Cocoon XSP. Currently Ive no idea how to implement the FileDownload. The easiest way for that would be to write the data to a mySQL Ressouce and read the data because of Userpermissions and so on. Is it possible, to returm plain BLOB Data from a Database to the User for a Download ? Is there a better way to implement that in Cocoon ? Thank you very much, Greetings, Sascha