Apache%20Tapestry%20Interview%20Questions%20and%20Answers

Answer:

Make a method like the following a a listener, such as from a DirectLink or whatever.

(The Document is just a class that holds the file information you want to send to the user.)

public void downloadAction(IRequestCycle cycle)

{

try

{

HttpServletResponse response =

cycle.getRequestContext().getResponse();

byte[] data = new byte[1024];

FileInputStream in = document.getFileInputstream();

response.setHeader("Content-disposition",

"inline; filename=" +

document.getFileName());

response.setContentType(document.getMimeType());

response.setContentLength(new Long(document.getSize()).intValue());

ServletOutputStream out = response.getOutputStream();

while (in.read(data) > -1)

{

out.write(data);

}

in.close();

response.flushBuffer();

}

catch (IOException e)

{

e.printStackTrace();

}

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