is there an existing FileInputStream delete on close?

Question

Is there an existing way to have a FileInputStream delete the underlying file automatically when closed?

I was planning to make my own utility class t

Answer 1

I know this is an old question, but I just ran into this issue, and found another answer: javax.ws.rs.core.StreamingOutput.

Here's how I used it:

    File downloadFile = ...figure out what file to download...
    StreamingOutput so = new StreamingOutput(){
         public void write(OutputStream os) throws IOException {
            FileUtils.copyFile(downloadFile, os);
            downloadFile.delete();
    }

    ResponseBuilder response = Response.ok(so, mimeType);
    response.header("Content-Disposition", "attachment; filename=\""+downloadFile.getName()+"\"");
    result = response.build();