Servlet and iText pdf creator

Question

Hi,
I have seen that all examples using iText and servlets send the pdf through the browser by using:
response.setContentType("application/pdf");
PdfWriter.getInstance(document, response.getOutputStream());
I would need that besides send that info, the servlet should store a pdf file on the local system where the web server is installed. Is that possible?
Could you please attach a full example code?
Thank you in advance.

Answer 1

If you want to send output to two simultaneous output streams (one for the browser and the other to save the PDF in the server's filesystem), then the following may help:
final public class Tee extends OutputStream {
    // Class Variables //
    /** First output stream to write to */
    final private OutputStream first;
    /** Second output stream to write to */
    final private OutputStream second;
    // Constructors //
     * Creates a Tee that will output to the two streams specified.
     * @param     first          First stream to write to
     * @param     second          Second stream to write to
    public Tee(final OutputStream first, final OutputStream second) {
        super();
        this.first = first;
        this.second = second;
    // Public Methods //
     * Writes the specified byte data to both streams.
     * @param     target          Data to output
     * @throws     IOException
     * @see          OutputStream#write(int)
    final public void write(final int target)
         throws IOException {
        first.write(target);
        second.write(target);
     * Flushes the data buffer of both streams.
     * @throws      IOException
     * @see          OutputStream#flush()
    final public void flush()
         throws IOException {
        first.flush();
        second.flush();
     * Closes both streams.  If an exception occurs when the first stream is closed, the
     * second stream will be closed before the exception is thrown.
     * @throws     IOException
     * @see          OutputStream#close()
    final public void close()
         throws IOException {
        IOException thrown = null;
        try {
            first.close();
        catch (IOException e) {
            thrown = e;
        try {
            second.close();
        catch (IOException e) {
            thrown = e;
        if (thrown != null) {
            throw thrown;
}- Saish