@Override
  public void handle(Request request, Response response) throws Exception {
    userSession.checkPermission(GlobalPermissions.SYSTEM_ADMIN);

    Part part = request.mandatoryParamAsPart(PARAM_FILE);
    String fileName = part.getFileName();
    checkArgument(fileName.endsWith(".jar"), "Only jar file is allowed");
    InputStream inputStream = part.getInputStream();
    try {
      File destPlugin = new File(downloadDir, fileName);
      Files.copy(inputStream, destPlugin.toPath(), REPLACE_EXISTING);
      response.noContent();
    } finally {
      closeQuietly(inputStream);
    }
  }
  public static void dumpPart(Part p, biz.systempartners.claims.ClaimsViewer claimsViewer)
      throws Exception {
    if (p instanceof Message) dumpEnvelope((Message) p);

    /**
     * Dump input stream ..
     *
     * <p>InputStream is = p.getInputStream(); // If "is" is not already buffered, wrap a
     * BufferedInputStream // around it. if (!(is instanceof BufferedInputStream)) is = new
     * BufferedInputStream(is); int c; while ((c = is.read()) != -1) System.out.write(c);
     */
    String ct = p.getContentType();
    try {
      pr("CONTENT-TYPE: " + (new ContentType(ct)).toString());
    } catch (ParseException pex) {
      pr("BAD CONTENT-TYPE: " + ct);
    }
    String filename = p.getFileName();
    if (filename != null) pr("FILENAME: " + filename);

    /*
     * Using isMimeType to determine the content type avoids
     * fetching the actual content data until we need it.
     */
    if (p.isMimeType("text/plain")) {
      pr("This is plain text");
      pr("---------------------------");
      if (!showStructure && !saveAttachments) System.out.println((String) p.getContent());
    } else if (p.isMimeType("multipart/*")) {
      pr("This is a Multipart");
      pr("---------------------------");
      Multipart mp = (Multipart) p.getContent();
      level++;
      int count = mp.getCount();
      for (int i = 0; i < count; i++) dumpPart(mp.getBodyPart(i), claimsViewer);
      level--;
    } else if (p.isMimeType("message/rfc822")) {
      pr("This is a Nested Message");
      pr("---------------------------");
      level++;
      dumpPart((Part) p.getContent(), claimsViewer);
      level--;
    } else {
      if (!showStructure && !saveAttachments) {
        /*
         * If we actually want to see the data, and it's not a
         * MIME type we know, fetch it and check its Java type.
         */
        Object o = p.getContent();
        if (o instanceof String) {
          pr("This is a string");
          pr("---------------------------");
          System.out.println((String) o);
        } else if (o instanceof InputStream) {
          pr("This is just an input stream");
          pr("---------------------------");
          InputStream is = (InputStream) o;
          int c;
          while ((c = is.read()) != -1) System.out.write(c);
        } else {
          pr("This is an unknown type");
          pr("---------------------------");
          pr(o.toString());
        }
      } else {
        // just a separator
        pr("---------------------------");
      }
    }

    /*
     * If we're saving attachments, write out anything that
     * looks like an attachment into an appropriately named
     * file.  Don't overwrite existing files to prevent
     * mistakes.
     */
    if (saveAttachments && level != 0 && !p.isMimeType("multipart/*")) {
      String disp = p.getDisposition();
      // many mailers don't include a Content-Disposition
      if (disp == null || disp.equalsIgnoreCase(Part.ATTACHMENT)) {
        if (filename == null) filename = "Attachment" + attnum++;
        pr("Saving attachment to file " + filename);
        try {
          File f = new File(System.getProperty("user.dir"), filename);
          /*  if (f.exists())
          // XXX - could try a series of names
          throw new IOException("file exists");*/
          OutputStream os = new BufferedOutputStream(new FileOutputStream(f));
          InputStream is = p.getInputStream();
          int c;
          while ((c = is.read()) != -1) os.write(c);
          os.close();
          if (p.isMimeType("text/xml") || p.isMimeType("application/octet-stream")) {
            processBrRequisitionFile(
                f, claimsViewer, claimsViewer.getInvoiceVector(), claimsViewer.getFilesVector());
          }
          System.out.println("I have saved file [" + f.getAbsolutePath() + "]");
        } catch (IOException ex) {
          pr("Failed to save attachment: " + ex);
        }
        pr("---------------------------");
      }
    }
  }
  /*
   * This method checks for content-type
   * based on which, it processes and
   * fetches the content of the message
   */
  public static void writePart(Part p, MailInfo mailInfo) throws Exception {
    if (p instanceof Message)
      // Call methos writeEnvelope
      writeEnvelope((Message) p, mailInfo);

    log.info("----------------------------");
    log.info("CONTENT-TYPE: " + p.getContentType());

    // check if the content is plain text
    if (p.isMimeType("text/plain")) {
      log.info("This is plain text");
      log.info("---------------------------");
      log.info((String) p.getContent());

      mailInfo.setBody(p.getContent().toString());
    }
    // check if the content has attachment
    else if (p.isMimeType("multipart/*")) {
      log.info("This is a Multipart");
      log.info("---------------------------");
      Multipart mp = (Multipart) p.getContent();
      int count = mp.getCount();
      for (int i = 0; i < count; i++) writePart(mp.getBodyPart(i), mailInfo);
    }
    // check if the content is a nested message
    else if (p.isMimeType("message/rfc822")) {
      log.info("This is a Nested Message");
      log.info("---------------------------");
      writePart((Part) p.getContent(), mailInfo);
    }
    // check if the content is an inline image
    else if (p.isMimeType("image/jpeg")) {
      log.info("--------> image/jpeg");
      Object o = p.getContent();
      InputStream x = (InputStream) o;
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      IOUtils.copy(x, bos);
      NamedContent namedContent = new NamedContent();
      namedContent.setName(p.getFileName());
      namedContent.setType(p.getContentType());
      namedContent.setContent(bos.toByteArray());
      mailInfo.getAttachments().add(namedContent);
    } else if (p.isMimeType("image/png")) {
      log.info("--------> image/png");
      Object o = p.getContent();
      InputStream x = (InputStream) o;
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      IOUtils.copy(x, bos);
      NamedContent namedContent = new NamedContent();
      namedContent.setName(p.getFileName());
      namedContent.setType(p.getContentType());
      namedContent.setContent(bos.toByteArray());
      mailInfo.getAttachments().add(namedContent);
    } else if (p.getContentType().contains("image/")) {
      log.info("content type" + p.getContentType());
      File f = new File("image" + new Date().getTime() + ".jpg");
      DataOutputStream output =
          new DataOutputStream(new BufferedOutputStream(new FileOutputStream(f)));
      com.sun.mail.util.BASE64DecoderStream test =
          (com.sun.mail.util.BASE64DecoderStream) p.getContent();
      byte[] buffer = new byte[1024];
      int bytesRead;
      while ((bytesRead = test.read(buffer)) != -1) {
        output.write(buffer, 0, bytesRead);
      }
    } else {
      Object o = p.getContent();
      if (o instanceof String) {
        log.info("This is a string");
        log.info("---------------------------");
        log.info((String) o);
      } else if (o instanceof InputStream) {
        log.info("This is just an input stream");
        log.info("---------------------------");
        InputStream is = (InputStream) o;
        is = (InputStream) o;
        int c;
        while ((c = is.read()) != -1) System.out.write(c);
      } else {
        log.info("This is an unknown type");
        log.info("---------------------------");
        log.info(o.toString());
      }
    }
  }