Question

I’m looking to read from a XML file which is stored within a zip file. I’m having TONs of issues understanding how to do this. The best I seem to be able to do is get an input stream working, BUT I CAN’T UNDERSTAND HOW TO READ IT!
So I know that its the right file, no I want to pass the data to a XML parser I have. However I don’t really understand what the input stream is, or how to manipulate it properly.
I’ve seen it used before with a buffer and then reading into the buffer, my question with this is how do we properly choose the size of the buffer if it is a sufficiently large file?

Any help would be great, thanks!

ZipFile zf;
    try {
        zf = new ZipFile(directory);
        CharBuffer charBuffer = CharBuffer.allocate(BUFFER_SIZE);
      for (Enumeration<? extends ZipEntry> e = zf.entries();
            e.hasMoreElements();) {
        ZipEntry ze = e.nextElement();
        String name = ze.getName();
        if (name.endsWith(".xml")) {
          InputStream in = zf.getInputStream(ze);
          // read from 'in
        }
      }
    } catch (IOException e1) {
        System.out.println("Sorry we couldn't find the file");
        e1.printStackTrace();
    }

Answer 1

You mean as in this?

DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document document = docBuilder.parse(in);

Or do you mean you already have a specific XML parser that doesn’t take an InputStream – what does it take?