Example usage for java.io PrintWriter write

List of usage examples for java.io PrintWriter write

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Introduction

In this page you can find the example usage for java.io PrintWriter write.

Prototype

public void write(String s)

Source Link

Document

Writes a string.

Usage

From source file:controllers.IndexServlet.java

private static void Upload(HttpServletRequest request, HttpServletResponse response, PrintWriter writer) {
    response.setContentType("text/plain");

    try {/*from  w  ww.  j a  va2  s .  c o  m*/
        Part httpPostedFile = request.getPart("file");

        String fileName = "";
        for (String content : httpPostedFile.getHeader("content-disposition").split(";")) {
            if (content.trim().startsWith("filename")) {
                fileName = content.substring(content.indexOf('=') + 1).trim().replace("\"", "");
            }
        }

        long curSize = httpPostedFile.getSize();
        if (DocumentManager.GetMaxFileSize() < curSize || curSize <= 0) {
            writer.write("{ \"error\": \"File size is incorrect\"}");
            return;
        }

        String curExt = FileUtility.GetFileExtension(fileName);
        if (!DocumentManager.GetFileExts().contains(curExt)) {
            writer.write("{ \"error\": \"File type is not supported\"}");
            return;
        }

        InputStream fileStream = httpPostedFile.getInputStream();

        fileName = DocumentManager.GetCorrectName(fileName);
        String fileStoragePath = DocumentManager.StoragePath(fileName, null);

        File file = new File(fileStoragePath);

        try (FileOutputStream out = new FileOutputStream(file)) {
            int read;
            final byte[] bytes = new byte[1024];
            while ((read = fileStream.read(bytes)) != -1) {
                out.write(bytes, 0, read);
            }

            out.flush();
        }

        writer.write("{ \"filename\": \"" + fileName + "\"}");

    } catch (IOException | ServletException e) {
        writer.write("{ \"error\": \"" + e.getMessage() + "\"}");
    }
}

From source file:com.dien.upload.server.UploadServlet.java

protected static void renderJSONResponse(HttpServletRequest request, HttpServletResponse response,
        String message) throws IOException {

    //json????/*from  w  w w  .  j  a  v  a  2  s.  c o m*/

    response.setContentType("text/html;charset=utf-8");
    PrintWriter out;
    try {
        out = response.getWriter();
        out.write(message);
        out.flush();
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:com.dien.upload.server.UploadServlet.java

/**
 * Writes a XML response to the client. 
 * The message must be a text which will be wrapped in an XML structure.
 * /*from w  w  w .jav a  2 s  .c o m*/
 * Note: if the request is a POST, the response should set the content type 
 *  to text/html or text/plain in order to be able in the client side to
 *  read the iframe body (submitCompletEvent.getResults()), otherwise the
 *  method returns null 
 * 
 * @param request
 * @param response
 * @param message
 * @param post
 *        specify whether the request is post or not.   
 * @throws IOException
 */
protected static void renderXmlResponse(HttpServletRequest request, HttpServletResponse response,
        String message, boolean post) throws IOException {

    //json????

    response.setContentType("text/html;charset=utf-8");
    PrintWriter out;
    try {
        out = response.getWriter();
        out.write("<html><body><textarea>" + message + "</textarea></body></html>");
        out.flush();
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:com.jsmartframework.web.manager.WebContext.java

/**
 * Write response directly as String. Note that by using this method the response
 * as HTML will not be generated and the response will be what you have defined.
 *
 * @param response String to write in the response.
 * @throws IOException//from w ww .j  a  va2s.  c o m
 */
public static void writeResponseAsString(String response) throws IOException {
    WebContext context = getCurrentInstance();
    if (context != null) {
        context.responseWritten = true;
        PrintWriter writer = context.response.getWriter();
        writer.write(response);
        writer.flush();
    }
}

From source file:com.jsmartframework.web.manager.WebContext.java

/**
 * Write response directly as JSON from Object. Note that by using this method the response
 * as HTML will not be generated and the response will be what you have defined.
 *
 * @param object Object to convert into JSON to write in the response.
 * @param gson Gson instance to be used to convert object into JSON.
 * @throws IOException/*  ww w. ja  va 2 s.com*/
 */
public static void writeResponseAsJson(Object object, Gson gson) throws IOException {
    WebContext context = getCurrentInstance();
    if (context != null) {
        context.responseWritten = true;
        context.response.setContentType("application/json");
        PrintWriter writer = context.response.getWriter();
        writer.write(gson.toJson(object));
        writer.flush();
    }
}

From source file:com.iitb.cse.Utils.java

public static boolean startExperiment(int expId, String timeout, String logBgTraffic) {

    File file = null;/*www  . j  a v a2 s  .c o  m*/
    File file1 = null;

    if (Constants.experimentDetailsDirectory.endsWith("/")) {
        file = new File(Constants.experimentDetailsDirectory + Constants.currentSession.getCurrentExperimentId()
                + "/" + Constants.configFile);
        file1 = new File(
                Constants.experimentDetailsDirectory + Constants.currentSession.getCurrentExperimentId());
    } else {
        file = new File(Constants.experimentDetailsDirectory + "/"
                + Constants.currentSession.getCurrentExperimentId() + "/" + Constants.configFile);
        file1 = new File(
                Constants.experimentDetailsDirectory + "/" + Constants.currentSession.getCurrentExperimentId());
    }

    if (file.exists()) {
        Charset charset = Charset.forName("UTF-8");
        String line = null;

        String[] data = new String[1000];//
        int index = 0;
        data[index] = "";
        try {
            BufferedReader reader = Files.newBufferedReader(file.toPath(), charset);
            Calendar cal = Calendar.getInstance();
            while ((line = reader.readLine()) != null) {

                System.out.println("\nLENGTH : " + line.length());

                if (line.isEmpty() || line.trim().equals("")) {
                    System.out.println("\nCASE1");
                    continue;
                } else if (line.trim().equals("*****\n")) {
                    System.out.println("\nCASE2");
                    data[index] = expId + "\n" + data[index];
                    index++;
                    data[index] = "";
                    continue;
                } else if (line.trim().equals("*****")) {
                    System.out.println("\nCASE3");
                    data[index] = expId + "\n" + data[index];
                    index++;
                    data[index] = "";
                    continue;
                }

                String[] lineVariables = line.split(" ");

                //   int offset = Integer.parseInt(lineVariables[1]);
                //   cal.add(Calendar.SECOND, offset);
                //****************************************************
                double time = Double.parseDouble(lineVariables[1]);

                int sec = (int) time;
                double rem = time % 1;
                int remainder = (int) (rem * 1000);
                //       Calendar cal = Calendar.getInstance();
                //   System.out.println("\nSec : " + sec + "\nMiSec : " + remainder + "\nTime : " + cal.getTime());
                int flag = 0;
                if (remainder < 100) {
                    flag = 1;
                    remainder = remainder + 100;
                    cal.add(Calendar.SECOND, sec);
                    cal.add(Calendar.MILLISECOND, remainder);
                    cal.add(Calendar.MILLISECOND, -100);
                } else {
                    cal.add(Calendar.SECOND, sec);
                    cal.add(Calendar.MILLISECOND, remainder);
                }

                //****************************************************
                if (lineVariables.length == 5) {
                    //       System.out.println("\nINSIDE");
                    data[index] += generateLine(cal, lineVariables[2], lineVariables[0], lineVariables[3],
                            lineVariables[4]);
                } else {
                    //    System.out.println("\nOUTSIDE");
                    data[index] += generateLine(cal, lineVariables[2], lineVariables[0], lineVariables[3]);
                }

                if (flag == 1) {
                    cal.add(Calendar.SECOND, -1 * sec);
                    cal.add(Calendar.MILLISECOND, -1 * remainder);
                    cal.add(Calendar.MILLISECOND, 100);
                } else {
                    cal.add(Calendar.SECOND, -1 * sec);
                    cal.add(Calendar.MILLISECOND, -1 * remainder);
                }

            }

            data[index] = expId + "\n" + data[index];

        } catch (IOException ex) {
            System.out.println(ex.toString());
            return false;
        }

        int controlFileIndex = 0;
        for (DeviceInfo d : Constants.currentSession.getFilteredClients()) {

            if (controlFileIndex >= Constants.currentSession.getFilteredClients().size()) {
                break;
            } else if (data[controlFileIndex] != null) {

                String jsonString = Utils.getControlFileJson(data[controlFileIndex], timeout, logBgTraffic);
                System.out.println("\njsonString : " + jsonString);
                System.out.println("\nControl FIle : " + data[controlFileIndex]);

                /* Locally keep the corresponding control file to each client*/
                PrintWriter writer;
                try {
                    writer = new PrintWriter(file1 + "/" + d.macAddress + "_confFile");
                    writer.write(data[controlFileIndex]);
                    writer.flush();
                    writer.close();
                } catch (FileNotFoundException ex) {
                    System.out.println("\nException : " + ex.toString());
                }

                //writer.close();
                System.out.println("\nDevice Info : IP " + d.ip + " Port " + d.port + " Mac " + d.macAddress);
                Thread sendData = new Thread(new SendData(expId, d, 0, jsonString, data[controlFileIndex]));
                sendData.start();
            } else {
                break;
            }
            controlFileIndex++;
        }
    } else {
        System.out.println("\nConfig FIle not found in location : " + Constants.experimentDetailsDirectory
                + Constants.currentSession.getCurrentExperimentId());
    }

    return true;
}

From source file:com.jsmartframework.web.manager.WebContext.java

/**
 * Write response directly as Event-Stream for Server Sent Events.
 *
 * @param asyncContext - Asynchronous Context.
 * @param event - Name of event to be written on response.
 * @param data - Content of event ot be written on response.
 * @param retry - Time in (milliseconds) for client retry opening connection.
 *              after asynchronous context is closed.
 * @throws IOException//from w ww.j av a2s  .co m
 */
public static void writeResponseAsEventStream(AsyncContext asyncContext, String event, Object data, Long retry)
        throws IOException {
    if (asyncContext != null && event != null && data != null) {
        HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();
        response.setContentType("text/event-stream");
        PrintWriter printWriter = response.getWriter();

        if (retry != null) {
            printWriter.write("retry:" + retry + "\n");
        }
        printWriter.write("event:" + event + "\n");
        printWriter.write("data:" + data + "\n\n");
        printWriter.flush();
    }
}

From source file:io.selendroid.android.impl.DefaultAndroidEmulator.java

private static Map<String, Integer> mapDeviceNamesToSerial() {
    Map<String, Integer> mapping = new HashMap<String, Integer>();
    CommandLine command = new CommandLine(AndroidSdk.adb());
    command.addArgument("devices");
    Scanner scanner;//from   w  w w.ja  v a  2s.c  om
    try {
        scanner = new Scanner(ShellCommand.exec(command));
    } catch (ShellCommandException e) {
        return mapping;
    }
    while (scanner.hasNextLine()) {
        String line = scanner.nextLine();
        Pattern pattern = Pattern.compile("emulator-\\d\\d\\d\\d");
        Matcher matcher = pattern.matcher(line);
        if (matcher.find()) {
            String serial = matcher.group(0);

            Integer port = Integer.valueOf(serial.replaceAll("emulator-", ""));
            TelnetClient client = null;
            try {
                client = new TelnetClient(port);
                String avdName = client.sendCommand("avd name");
                mapping.put(avdName, port);
            } catch (AndroidDeviceException e) {
                // ignore
            } finally {
                if (client != null) {
                    client.close();
                }
            }
            Socket socket = null;
            PrintWriter out = null;
            BufferedReader in = null;
            try {
                socket = new Socket("127.0.0.1", port);
                out = new PrintWriter(socket.getOutputStream(), true);
                in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                if (in.readLine() == null) {
                    throw new AndroidDeviceException("error");
                }

                out.write("avd name\r\n");
                out.flush();
                in.readLine();// OK
                String avdName = in.readLine();
                mapping.put(avdName, port);
            } catch (Exception e) {
                // ignore
            } finally {
                try {
                    out.close();
                    in.close();
                    socket.close();
                } catch (Exception e) {
                    // do nothing
                }
            }
        }
    }
    scanner.close();

    return mapping;
}

From source file:fi.helsinki.opintoni.security.AuthFailureHandler.java

@Override
public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException exception) throws IOException, ServletException {
    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);

    PrintWriter writer = response.getWriter();
    writer.write(exception.getMessage());
    writer.flush();// ww  w.j  av  a 2  s .  c  om
}

From source file:sct.ApplicationContextNamespaceTestServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    XmlWebApplicationContext ctx = new XmlWebApplicationContext();
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    ctx.setClassLoader(loader);//from   www.j  a v  a2  s  .  com
    ctx.setConfigLocation("classpath:sct/namespace.xml");
    ctx.refresh();
    Object bean = ctx.getBean("someBean");
    if (bean != null) {
        PrintWriter writer = resp.getWriter();
        writer.write("OK");
        writer.flush();
    }
}