Echo Web Framework

Hi All,

I'm using the source code provided by oliverp in this thread, http://echo.nextapp.com/site/node/5839. Thanks!

Following is my implementation of the downloading of files to client machine from a url.

SourceLoc will contains the URL, eg : http://urserver.com/file.psd

private void downloadSourceFile(ActionEvent e) {
		URL url;
		URLConnection uc;
		InputStream input;

		try {
			url = new URL(nw.getSourceLoc());
			uc = url.openConnection();
			input = uc.getInputStream();

			String[] fileArray = nw.getSourceLoc().split("/"); 
			String filename = fileArray[fileArray.length - 1];
			input.available();
			getApplication()
					.enqueueCommand(
							new DownloadCommand(new FileDownloadProvider(uc.getContentType(),
									filename, input)));
			
		} catch (MalformedURLException err) {
			err.printStackTrace();
		} catch (IOException err) {
			err.printStackTrace();
		}
	}

	public static class FileDownloadProvider implements DownloadProvider {
		private static final int DEFAULT_BUFFER_SIZE = 1024 * 1024;
		private final String contentType;
		private final String filename;
		private final InputStream contentStream;

		public FileDownloadProvider(String contentType, String filename,
				InputStream contentStream) {
			this.contentType = contentType;
			this.filename = filename;
			this.contentStream = contentStream;
		}

		public String getContentType() {
			return contentType;
		}

		public String getFileName() {
			return filename;
		}

		public long getSize() {
			try {
				return contentStream.available();
			} catch (IOException ex) {
				throw new RuntimeException(ex);
			}
		}

		public void writeFile(OutputStream outStream) throws IOException {
			byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
			int count = 0;
			int n = 0;
			while (-1 != (n = contentStream.read(buffer))) {
				outStream.write(buffer, 0, n);
				count += n;
			}
			contentStream.close();
		}

		@Override
		public String getContentDisposition() {
			// TODO Auto-generated method stub
			return "attachment";
		}

		@Override
		public Status getStatus() {
			// TODO Auto-generated method stub
			return null;
		}

	}

It works great, but however the size of the download file is limited to 9.8kb no matter how i change the coding and buffers.

The file for downloads can be as big as 2gb, so i will need a better way of implementing this.

May i know is it my implementation is wrong?

Thanks for your time.

Regards,
Chee Han