Example usage for java.io DataOutputStream flush

List of usage examples for java.io DataOutputStream flush

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Introduction

In this page you can find the example usage for java.io DataOutputStream flush.

Prototype

public void flush() throws IOException

Source Link

Document

Flushes this data output stream.

Usage

From source file:edu.slu.action.ObjectAction.java

public static String getAccessTokenWithAuth(String auth_code) throws UnsupportedEncodingException {
    System.out.println("Getting an access token");
    String token = "";
    int rcode = 0;
    String tokenURL = "https://cubap.auth0.com/oauth/token";
    JSONObject body = new JSONObject();
    //body.element("grant_type", "authorization_code");
    body.element("grant_type", "client_credentials");
    body.element("client_id", getRerumProperty("clientID"));
    body.element("client_secret", getRerumProperty("rerumSecret"));
    body.element("audience", "http://rerum.io/api");
    //body.element("code", auth_code);
    body.element("redirect_uri", Constant.RERUM_BASE);
    //System.out.println("I will be using this body: ");
    //System.out.println(body);
    try {/*from ww  w  .j  a  va 2 s  .c o  m*/
        URL tURL = new URL(tokenURL);
        HttpURLConnection connection;
        connection = (HttpURLConnection) tURL.openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setRequestProperty("Content-Type", "application/json");
        connection.connect();
        rcode = connection.getResponseCode();
        if (connection.getResponseCode() == 401) {
            //One of the values used was wrong.  The secret may have expired, the clientID may be wrong, the auth_code may be wrong or the user may not be a part of the RERUM client.
            token = "Auth0 responded 401.  Contact RERUM.";
        } else if (connection.getResponseCode() >= 500) {
            token = "Auth0 had an internal error.  Try again later. " + rcode;
        } else if (connection.getResponseCode() == 200) {
            DataOutputStream jsonString = new DataOutputStream(connection.getOutputStream());
            jsonString.writeBytes(body.toString());
            jsonString.flush();
            jsonString.close();
            BufferedReader input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder responseBlob = new StringBuilder();
            String line;
            while ((line = input.readLine()) != null) {
                responseBlob.append(line);
            }
            input.close();
            connection.disconnect();
            JSONObject responseObj = new JSONObject();
            if (responseBlob.length() > 0) {
                try {
                    responseObj = JSONObject.fromObject(responseBlob.toString());
                } catch (Exception e) {
                    //response was not JSON, so let it an empty object.
                }
            }
            if (responseObj.containsKey("access_token")) {
                token = responseObj.getString("access_token");
                if ("".equals(token)) {
                    token = "Auth0 did not respond with a token.";
                }
            } else {
                token = "Auth0 did not respond with a token.  ";
            }
        } else {
            token = "There was an issue contacting Auth0. " + rcode + ".  Contact RERUM.";
        }

    } catch (ProtocolException ex) {
        Logger.getLogger(ObjectAction.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(ObjectAction.class.getName()).log(Level.SEVERE, null, ex);
    }

    return token;
}

From source file:com.cypress.cysmart.RDKEmulatorView.MicrophoneEmulatorFragment.java

private void createWavFile(File fileToConvert, String wavFilePath) {
    try {//  w  w  w. j a v a  2s .c  om
        long mySubChunk1Size = 16;
        int myBitsPerSample = 16;
        int myFormat = 1;
        long myChannels = 1;
        long mySampleRate = 16000;
        long myByteRate = mySampleRate * myChannels * myBitsPerSample / 8;
        int myBlockAlign = (int) (myChannels * myBitsPerSample / 8);

        byte[] clipData = getBytesFromFile(fileToConvert);

        long myDataSize = clipData.length;
        long myChunk2Size = myDataSize * myChannels * myBitsPerSample / 8;
        long myChunkSize = 36 + myChunk2Size;

        OutputStream os;
        os = new FileOutputStream(new File(wavFilePath));
        BufferedOutputStream bos = new BufferedOutputStream(os);
        DataOutputStream outFile = new DataOutputStream(bos);

        outFile.writeBytes("RIFF"); // 00 - RIFF
        outFile.write(intToByteArray((int) myChunkSize), 0, 4); // 04 - how big is the rest of this file?
        outFile.writeBytes("WAVE"); // 08 - WAVE
        outFile.writeBytes("fmt "); // 12 - fmt
        outFile.write(intToByteArray((int) mySubChunk1Size), 0, 4); // 16 - size of this chunk
        outFile.write(shortToByteArray((short) myFormat), 0, 2); // 20 - what is the audio format? 1 for PCM = Pulse Code Modulation
        outFile.write(shortToByteArray((short) myChannels), 0, 2); // 22 - mono or stereo? 1 or 2?  (or 5 or ???)
        outFile.write(intToByteArray((int) mySampleRate), 0, 4); // 24 - samples per second (numbers per second)
        outFile.write(intToByteArray((int) myByteRate), 0, 4); // 28 - bytes per second
        outFile.write(shortToByteArray((short) myBlockAlign), 0, 2); // 32 - # of bytes in one sample, for all channels
        outFile.write(shortToByteArray((short) myBitsPerSample), 0, 2); // 34 - how many bits in a sample(number)?  usually 16 or 24
        outFile.writeBytes("data"); // 36 - data
        outFile.write(intToByteArray((int) myDataSize), 0, 4); // 40 - how big is this data chunk
        outFile.write(clipData); // 44 - the actual data itself - just a long string of numbers

        outFile.flush();
        outFile.close();

    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:com.att.android.arodatacollector.main.AROCollectorService.java

/**
 * Starts the video capture of the device desktop by reading frame buffer
 * using ffmpeg command/*from   w w  w  .j av  a 2s . c o m*/
 */
private void startScreenVideoCapture() {
    Process sh = null;
    DataOutputStream os = null;
    try {
        if (DEBUG) {
            Log.e(TAG, "Starting Video Capture");
        }
        sh = Runtime.getRuntime().exec("su");
        os = new DataOutputStream(sh.getOutputStream());
        String Command = "cd " + ARODataCollector.INTERNAL_DATA_PATH + " \n";
        os.writeBytes(Command);
        Command = "chmod 777 ffmpeg \n";
        os.writeBytes(Command);
        Command = "./ffmpeg -f fbdev -vsync 2 -r 3 -i /dev/graphics/fb0 /sdcard/ARO/" + TRACE_FOLDERNAME
                + "/video.mp4 2> /data/ffmpegout.txt \n";
        os.writeBytes(Command);
        Command = "exit\n";
        os.writeBytes(Command);
        os.flush();
        sh.waitFor();
    } catch (IOException e) {
        Log.e(TAG, "exception in startScreenVideoCapture", e);
    } catch (InterruptedException e) {
        Log.e(TAG, "exception in startScreenVideoCapture", e);
    } finally {
        try {
            if (DEBUG) {
                Log.e(TAG, "Stopped Video Capture in startScreenVideoCapture");
            }
            os.close();
            // Reading start time of Video from ffmpegout file
            mApp.readffmpegStartTimefromFile();
        } catch (IOException e) {
            Log.e(TAG, "IOException in reading video start time", e);
        } catch (NumberFormatException e) {
            Log.e(TAG, "NumberFormatException in reading video start time", e);
        }
        try {
            // Recording start time of video
            mApp.writeVideoTraceTime(Double.toString(mApp.getAROVideoCaptureStartTime()));
            mApp.closeVideoTraceTimeFile();
        } catch (IOException e) {
            Log.e(TAG, "IOException in writing video start time", e);
        }
        if (mApp.getTcpDumpStartFlag() && !mApp.getARODataCollectorStopFlag()) {
            mApp.setVideoCaptureFailed(true);
        }
        try {
            mApp.setAROVideoCaptureRunningFlag(false);
            sh.destroy();
        } catch (Exception e) {
            Log.e(TAG, "Failed to destroy shell during Video Capture termination");
        }
    }
}

From source file:ict.servlet.UploadToServer.java

public static int upLoad2Server(String sourceFileUri) {
    String upLoadServerUri = "http://vbacdu.ddns.net:8080/WBS/newjsp.jsp";
    // String [] string = sourceFileUri;
    String fileName = sourceFileUri;
    int serverResponseCode = 0;

    HttpURLConnection conn = null;
    DataOutputStream dos = null;
    DataInputStream inStream = null;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1 * 1024 * 1024;
    String responseFromServer = "";

    File sourceFile = new File(sourceFileUri);
    if (!sourceFile.isFile()) {

        return 0;
    }//  w  ww.j  av a 2 s .c  om
    try { // open a URL connection to the Servlet
        FileInputStream fileInputStream = new FileInputStream(sourceFile);
        URL url = new URL(upLoadServerUri);
        conn = (HttpURLConnection) url.openConnection(); // Open a HTTP  connection to  the URL
        conn.setDoInput(true); // Allow Inputs
        conn.setDoOutput(true); // Allow Outputs
        conn.setUseCaches(false); // Don't use a Cached Copy
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestProperty("ENCTYPE", "multipart/form-data");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
        conn.setRequestProperty("uploaded_file", fileName);
        dos = new DataOutputStream(conn.getOutputStream());

        dos.writeBytes(twoHyphens + boundary + lineEnd);
        dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + fileName + "\""
                + lineEnd);
        dos.writeBytes(lineEnd);

        bytesAvailable = fileInputStream.available(); // create a buffer of  maximum size

        bufferSize = Math.min(bytesAvailable, maxBufferSize);
        buffer = new byte[bufferSize];

        // read file and write it into form...
        bytesRead = fileInputStream.read(buffer, 0, bufferSize);

        while (bytesRead > 0) {
            dos.write(buffer, 0, bufferSize);
            bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
        }

        // send multipart form data necesssary after file data...
        dos.writeBytes(lineEnd);
        dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

        // Responses from the server (code and message)
        serverResponseCode = conn.getResponseCode();
        String serverResponseMessage = conn.getResponseMessage();

        m_log.info("Upload file to server" + "HTTP Response is : " + serverResponseMessage + ": "
                + serverResponseCode);
        // close streams
        m_log.info("Upload file to server" + fileName + " File is written");
        fileInputStream.close();
        dos.flush();
        dos.close();
    } catch (MalformedURLException ex) {
        //         ex.printStackTrace();
        m_log.error("Upload file to server" + "error: " + ex.getMessage(), ex);
    } catch (Exception e) {
        //      e.printStackTrace();
    }
    //this block will give the response of upload link
    /* try {
      BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
      String line;
      while ((line = rd.readLine()) != null) {
      m_log.info("Huzza" + "RES Message: " + line);
      }
      rd.close();
      } catch (IOException ioex) {
      m_log.error("Huzza" + "error: " + ioex.getMessage(), ioex);
      }*/
    return serverResponseCode; // like 200 (Ok)

}

From source file:com.appcelerator.titanium.desktop.ui.wizard.Packager.java

private IStatus invokeCloudService(URL baseURL, Map<String, String> data, String type) {
    DataOutputStream outputStream = null;
    try {//w w  w  . ja v  a 2 s  .  c  o  m

        if (type == null) {
            type = "POST"; //$NON-NLS-1$
        }

        if (data == null) {
            data = new HashMap<String, String>();
        }

        // always pass MID
        data.put("mid", TitaniumCorePlugin.getMID()); //$NON-NLS-1$
        ITitaniumUser user = TitaniumCorePlugin.getDefault().getUserManager().getSignedInUser();
        data.put("sid", user.getSessionID()); //$NON-NLS-1$
        data.put("token", user.getToken()); //$NON-NLS-1$
        data.put("uid", user.getUID()); //$NON-NLS-1$
        data.put("uidt", user.getUIDT()); //$NON-NLS-1$

        // If this is not a POST, append query params don't put as data in body!
        if (!"POST".equals(type)) //$NON-NLS-1$
        {
            baseURL = makeURL(baseURL.toString(), data);
        }
        HttpURLConnection con = (HttpURLConnection) baseURL.openConnection();
        con.setUseCaches(false);
        con.setRequestMethod(type);
        con.setRequestProperty("User-Agent", TitaniumConstants.USER_AGENT); //$NON-NLS-1$
        if ("POST".equals(type)) //$NON-NLS-1$
        {
            con.setDoOutput(true);
            // Write the data to the connection
            outputStream = new DataOutputStream(con.getOutputStream());
            outputStream.writeBytes(getQueryString(data));
            outputStream.flush();
        }

        IdeLog.logInfo(DesktopPlugin.getDefault(), MessageFormat.format("API Request: {0}", baseURL), //$NON-NLS-1$
                com.appcelerator.titanium.core.IDebugScopes.API);

        // Force to finish, grab response code
        int code = con.getResponseCode();

        // If the http code is 200 from POST, parse response as JSON. Else display error
        if (code == 200) {
            String responseText = IOUtil.read(con.getInputStream());
            IdeLog.logInfo(DesktopPlugin.getDefault(),
                    MessageFormat.format("API Response: {0}:{1}", code, responseText), //$NON-NLS-1$
                    com.appcelerator.titanium.core.IDebugScopes.API);

            return new Status(IStatus.OK, DesktopPlugin.PLUGIN_ID, code, responseText, null);
        }
        // TODO Read from connection to populate message!
        return new Status(IStatus.ERROR, DesktopPlugin.PLUGIN_ID, code, null, null);
    } catch (Exception e) {
        return new Status(IStatus.ERROR, DesktopPlugin.PLUGIN_ID, 0, e.getMessage(), e);
    } finally {
        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException e) {
                // ignores the exception
            }
        }
    }
}

From source file:com.att.android.arodatacollector.main.AROCollectorService.java

/**
 * Stops collecting kernel log//w w  w  . j  a  va  2  s.  c o  m
 *
 * Requires root permission.
 *
 * pre: there is only one "cat" process running
 */
private void stopDmesg() {
    Process sh = null;
    DataOutputStream os = null;
    int pid = 0;
    try {
        pid = mAroUtils.getProcessID("cat");
    } catch (IOException e1) {
        Log.e(TAG, "IOException in stopDmesg", e1);
    } catch (IndexOutOfBoundsException e1) {
        Log.e(TAG, "IndexOutOfBoundsException in stopDmesg", e1);
    } catch (InterruptedException e1) {
        Log.e(TAG, "exception in stopDmesg", e1);
    }
    if (DEBUG) {
        Log.d(TAG, "stopDmesg=" + pid);
    }
    if (pid != 0) {
        try {
            sh = Runtime.getRuntime().exec("su");
            os = new DataOutputStream(sh.getOutputStream());
            final String Command = "kill -15 " + pid + "\n";
            os.writeBytes(Command);
            os.flush();
            sh.waitFor();
        } catch (IOException e) {
            Log.e(TAG, "exception in stopDmesg", e);
        } catch (InterruptedException e) {
            Log.e(TAG, "exception in stopDmesg", e);
        } finally {
            try {
                os.close();
            } catch (IOException e) {
                Log.e(TAG, "exception in stopDmesg DataOutputStream close", e);
            }
            if (DEBUG) {
                Log.d(TAG, "Stopped stopDmesg");
            }
            sh.destroy();
        }
    }
}

From source file:com.att.android.arodatacollector.main.AROCollectorService.java

/**
 * issue the kill -9 command if ffmpeg couldn't be stopped with kill -15
 */// w ww . ja  va  2s . co m
private void kill9Ffmpeg() {

    Process sh = null;
    DataOutputStream os = null;

    int pid = 0, exitValue = -1;
    try {
        //have a 1 sec delay since it takes some time for the kill -15 to end ffmpeg
        Thread.sleep(1000);
        pid = mAroUtils.getProcessID("ffmpeg");

        if (pid != 0) {
            //ffmpeg still running
            if (DEBUG) {
                Log.i(TAG, "ffmpeg still running after kill -15. Will issue kill -9 " + pid);
            }

            sh = Runtime.getRuntime().exec("su");
            os = new DataOutputStream(sh.getOutputStream());
            String Command = "kill -9 " + pid + "\n";
            os.writeBytes(Command);

            Command = "exit\n";
            os.writeBytes(Command);
            os.flush();

            //clear the streams so that it doesnt block the process
            //sh.inputStream is actually the output from the process
            StreamClearer stdoutClearer = new StreamClearer(sh.getInputStream(), "stdout", false);
            new Thread(stdoutClearer).start();
            StreamClearer stderrClearer = new StreamClearer(sh.getErrorStream(), "stderr", true);
            new Thread(stderrClearer).start();

            exitValue = sh.waitFor();
            if (exitValue == 0) {
                mVideoRecording = false;
            } else {
                Log.e(TAG, "could not kill ffmpeg in kill9Ffmpeg, exitValue=" + exitValue);
            }

        } else {
            mVideoRecording = false;
            if (DEBUG) {
                Log.i(TAG, "ffmpeg had been ended successfully by kill -15");
            }
        }
    } catch (Exception e1) {
        Log.e(TAG, "exception in kill9Ffmpeg", e1);
    } finally {
        try {
            if (os != null) {
                os.close();
            }

            if (sh != null) {
                sh.destroy();
            }
        } catch (Exception e) {
            Log.e(TAG, "exception in kill9Ffmpeg DataOutputStream close", e);
        }
    }
}

From source file:my.swingconnect.SwingConnectUI.java

public int uploadFile(String User, String Pass) {
    int set = 0;/*  w w w . ja v a2 s.  c  om*/
    String upLoadServerUri = null;
    upLoadServerUri = "http://photo-drop.com/clientlogin.php";
    final String USER_AGENT = "Mozilla/5.0";
    HttpURLConnection conn = null;
    DataOutputStream dos = null;
    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1 * 1024 * 1024;

    if (User.isEmpty() && Pass.isEmpty()) {

        System.out.println("Please enter the valid User and Pass :");

        return set;
    } else {

        try {
            //String upLoadServerUri = null;
            int serverResponseCode = 0;

            URL url = new URL(upLoadServerUri); //Passing the server complete URL

            // Open a HTTP connection to the URL
            conn = (HttpURLConnection) url.openConnection();
            conn.setDoInput(true); // Allow Inputs
            conn.setDoOutput(true); // Allow Outputs
            conn.setUseCaches(false); // Don't use a Cached Copy
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("User-Agent", USER_AGENT);
            conn.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
            //conn.setRequestProperty("Cookie", "Username=Mavericks;");
            String urlParameters = "Username=" + User + "&Password=" + Pass + "&submit=Login";
            dos = new DataOutputStream(conn.getOutputStream());

            dos.writeBytes(urlParameters);
            dos.flush();
            dos.close();

            System.out.println("\nSending 'POST' request to URL : " + url);
            System.out.println("Post parameters : " + urlParameters);
            serverResponseCode = conn.getResponseCode();

            String serverResponseMessage = conn.getResponseMessage();

            System.out.println("HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);

            if (serverResponseCode == 200) {

                System.out.println("Posted success");
                set = 1;
            } else if (serverResponseCode == 401) {
                System.out.println("Invalid Login");

            } else {
                System.out.println("Error check");
            }

        } catch (MalformedURLException ex) {

            ex.printStackTrace();
            System.out.println("Error");

        } catch (Exception e) {

            e.printStackTrace();
            System.out.println("Error");

        }

        return set;

    }

}

From source file:com.att.android.arodatacollector.main.AROCollectorService.java

/**
 * Stops the Screen video capture/*from   w  w  w . java  2 s. c  o m*/
 */
private void stopScreenVideoCapture() {
    Log.i(TAG, "enter stopScreenVideoCapture at " + System.currentTimeMillis());

    Process sh = null;
    DataOutputStream os = null;
    int pid = 0, exitValue = -1;
    try {
        pid = mAroUtils.getProcessID("ffmpeg");
    } catch (IOException e1) {
        Log.e(TAG, "IOException in stopScreenVideoCapture", e1);
    } catch (InterruptedException e1) {
        Log.e(TAG, "exception in stopScreenVideoCapture", e1);
    }
    if (DEBUG) {
        Log.i(TAG, "stopScreenVideoCapture=" + pid);
    }
    if (pid != 0) {
        try {
            sh = Runtime.getRuntime().exec("su");
            os = new DataOutputStream(sh.getOutputStream());
            String command = "kill -15 " + pid + "\n";
            os.writeBytes(command);

            command = "exit\n";
            os.writeBytes(command);
            os.flush();

            //clear the streams so that it doesnt block the process
            //sh.inputStream is actually the output from the process
            StreamClearer stdoutClearer = new StreamClearer(sh.getInputStream(), "stdout", false);
            new Thread(stdoutClearer).start();
            StreamClearer stderrClearer = new StreamClearer(sh.getErrorStream(), "stderr", true);
            new Thread(stderrClearer).start();

            exitValue = sh.waitFor();
            if (exitValue == 0) {
                mVideoRecording = false;
            }

            if (DEBUG) {
                Log.i(TAG, "successfully returned from kill -15; exitValue= " + exitValue);
            }
        } catch (IOException e) {
            Log.e(TAG, "exception in stopScreenVideoCapture", e);
        } catch (InterruptedException e) {
            Log.e(TAG, "exception in stopScreenVideoCapture", e);
        } finally {
            try {
                kill9Ffmpeg();

                if (os != null) {
                    os.close();
                }
                if (sh != null) {
                    sh.destroy();
                }
            } catch (Exception e) {
                Log.e(TAG, "exception in stopScreenVideoCapture finally block", e);
            }
            if (DEBUG) {
                Log.i(TAG, "Stopped Video Capture in stopScreenVideoCapture()");
            }
        }
    }

    if (DEBUG) {
        Log.i(TAG, "exit stopScreenVideoCapture");
    }
}

From source file:org.motechproject.mobile.web.OXDFormDownloadServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//from w w  w  . j a  v  a2  s. c  o  m
 *
 * @param request  servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException      if an I/O error occurs
 */
@RequestMapping(method = RequestMethod.POST)
public void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    // Get our raw input and output streams
    InputStream input = request.getInputStream();
    OutputStream output = response.getOutputStream();

    // Wrap the streams for compression
    ZOutputStream zOutput = new ZOutputStream(output, JZlib.Z_BEST_COMPRESSION);

    // Wrap the streams so we can use logical types
    DataInputStream dataInput = new DataInputStream(input);
    DataOutputStream dataOutput = new DataOutputStream(zOutput);

    try {

        // Read the common submission data from mobile phone
        String name = dataInput.readUTF();
        String password = dataInput.readUTF();
        String serializer = dataInput.readUTF();
        String locale = dataInput.readUTF();

        byte action = dataInput.readByte();

        // TODO: add authentication, possible M6 enhancement

        log.info("downloading: name=" + name + ", password=" + password + ", serializer=" + serializer
                + ", locale=" + locale + ", action=" + action);

        EpihandyXformSerializer serObj = new EpihandyXformSerializer();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        // Perform the action specified by the mobile phone
        try {
            if (action == ACTION_DOWNLOAD_STUDY_LIST) {
                serObj.serializeStudies(baos, studyService.getStudies());
            } else if (action == ACTION_DOWNLOAD_USERS_AND_FORMS) {

                serObj.serializeUsers(baos, userService.getUsers());

                int studyId = dataInput.readInt();
                String studyName = studyService.getStudyName(studyId);
                List<String> studyForms = formService.getStudyForms(studyId);

                serObj.serializeForms(baos, studyForms, studyId, studyName);

            }
        } catch (Exception e) {
            dataOutput.writeByte(RESPONSE_ERROR);
            throw new ServletException("failed to serialize data", e);
        }

        // Write out successful upload response
        dataOutput.writeByte(RESPONSE_SUCCESS);
        dataOutput.write(baos.toByteArray());
        response.setStatus(HttpServletResponse.SC_OK);

    } finally {
        // Should always do this
        dataOutput.flush();
        zOutput.finish();
        response.flushBuffer();
    }
}