Example usage for java.io DataOutputStream DataOutputStream

Introduction

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

Prototype

public DataOutputStream(OutputStream out)

Source Link

Document

Creates a new data output stream to write data to the specified underlying output stream.

Usage

From source file:Main.java

public static int getSuVersionCode() {
    Process process = null;//from  w w w.  j a v  a 2 s  .c o  m
    String inLine = null;

    try {
        process = Runtime.getRuntime().exec("sh");
        DataOutputStream os = new DataOutputStream(process.getOutputStream());
        BufferedReader is = new BufferedReader(
                new InputStreamReader(new DataInputStream(process.getInputStream())), 64);
        os.writeBytes("su -v\n");

        // We have to hold up the thread to make sure that we're ready to read
        // the stream, using increments of 5ms makes it return as quick as
        // possible, and limiting to 1000ms makes sure that it doesn't hang for
        // too long if there's a problem.
        for (int i = 0; i < 400; i++) {
            if (is.ready()) {
                break;
            }
            try {
                Thread.sleep(5);
            } catch (InterruptedException e) {
                Log.w(TAG, "Sleep timer got interrupted...");
            }
        }
        if (is.ready()) {
            inLine = is.readLine();
            if (inLine != null && Integer.parseInt(inLine.substring(0, 1)) > 2) {
                inLine = null;
                os.writeBytes("su -V\n");
                inLine = is.readLine();
                if (inLine != null) {
                    return Integer.parseInt(inLine);
                }
            } else {
                return 0;
            }
        } else {
            os.writeBytes("exit\n");
        }
    } catch (IOException e) {
        Log.e(TAG, "Problems reading current version.", e);
        return 0;
    } finally {
        if (process != null) {
            process.destroy();
        }
    }
    return 0;
}

From source file:com.ant.myteam.gcm.POST2GCM.java

public static void post(String apiKey, Content content) {

    try {//ww  w . ja v a  2  s. c om

        // 1. URL
        URL url = new URL("https://android.googleapis.com/gcm/send");

        // 2. Open connection
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        // 3. Specify POST method
        conn.setRequestMethod("POST");

        // 4. Set the headers
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Authorization", "key=" + apiKey);

        conn.setDoOutput(true);

        // 5. Add JSON data into POST request body

        //`5.1 Use Jackson object mapper to convert Contnet object into JSON
        ObjectMapper mapper = new ObjectMapper();

        // 5.2 Get connection output stream
        DataOutputStream wr = new DataOutputStream(conn.getOutputStream());

        // 5.3 Copy Content "JSON" into
        mapper.writeValue(wr, content);

        // 5.4 Send the request
        wr.flush();

        // 5.5 close
        wr.close();

        // 6. Get the response
        int responseCode = conn.getResponseCode();
        System.out.println("\nSending 'POST' request to URL : " + url);
        System.out.println("Response Code : " + responseCode);

        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // 7. Print result
        System.out.println(response.toString());

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

From source file:Main.java

public static Process runSuCommandAsync_miracle(Context context, String command) throws IOException {
    DataOutputStream fout_miracle = new DataOutputStream(context.openFileOutput(SCRIPT_NAME_miracle, 0));
    fout_miracle.writeBytes(command);//  w w  w.  j av a2 s .  c o  m
    fout_miracle.close();

    String[] args_miracle = new String[] { "su", "-c",
            ". " + context.getFilesDir().getAbsolutePath() + "/" + SCRIPT_NAME_miracle };
    Process proc_miracle = Runtime.getRuntime().exec(args_miracle);
    return proc_miracle;
}

From source file:Main.java

public static void writeContatctInfo(String accountId, Vector contactInfo, File contactInfoFile)
        throws IOException {
    contactInfoFile.getParentFile().mkdirs();
    FileOutputStream contactFileOutputStream = new FileOutputStream(contactInfoFile);
    DataOutputStream out = new DataOutputStream(contactFileOutputStream);
    out.writeUTF((String) contactInfo.get(0));
    out.writeInt(((Integer) (contactInfo.get(1))).intValue());
    for (int i = 2; i < contactInfo.size(); ++i) {
        out.writeUTF((String) contactInfo.get(i));
    }//from  ww w.jav a 2  s.c  om
    out.close();
}

From source file:com.moz.fiji.hive.utils.ByteWritable.java

public static byte[] serialize(Writable writable) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DataOutputStream dataOut = null;
    try {/*from  w  w  w  . ja v  a 2 s  .  co  m*/
        dataOut = new DataOutputStream(out);
        writable.write(dataOut);
        return out.toByteArray();
    } finally {
        IOUtils.closeQuietly(dataOut);
    }
}

From source file:com.fullhousedev.globalchat.bukkit.PluginMessageManager.java

public static void sendRawMessage(String subChannel, String serverName, byte[] message, Plugin pl) {
    ByteArrayOutputStream b = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(b);

    try {/*w  ww  . ja va  2  s  . c o m*/
        out.writeUTF("Forward");
        out.writeUTF(serverName);
        out.writeUTF(subChannel);

        out.writeShort(message.length);
        out.write(message);
    } catch (IOException ex) {
        Logger.getLogger(GlobalChat.class.getName()).log(Level.SEVERE, null, ex);
    }

    Player p = Bukkit.getOnlinePlayers()[0];

    p.sendPluginMessage(pl, "BungeeCord", b.toByteArray());
}

From source file:MainClass.java

public void run() {
    try {/*from  www . j a  v  a2 s. c  o m*/
        Socket socket = new Socket("127.0.0.1", 2000);

        DataInputStream in = new DataInputStream(socket.getInputStream());
        BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
        DataOutputStream out = new DataOutputStream(socket.getOutputStream());

        while (true) {
            System.out.print("Enter response: ");
            String response = console.readLine();
            out.writeUTF(response);

            String message = in.readUTF();
            System.out.println(message);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static String upLoad(File file, String RequestURL) {
    String BOUNDER = UUID.randomUUID().toString();
    String PREFIX = "--";
    String END = "/r/n";

    try {/*from ww w . j av a 2s . c  om*/
        URL url = new URL(RequestURL);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setReadTimeout(TIME_OUT);
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setUseCaches(false);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Charset", CHARSET);
        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("Cotent-Type", CONTENT_TYPE + ";boundary=" + BOUNDER);

        if (file != null) {
            OutputStream outputStream = connection.getOutputStream();

            DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
            StringBuffer sb = new StringBuffer();
            sb.append(PREFIX);
            sb.append(BOUNDER + END);
            dataOutputStream.write(sb.toString().getBytes());
            InputStream in = new FileInputStream(file);
            byte[] b = new byte[1024];
            int l = 0;
            while ((l = in.read()) != -1) {
                outputStream.write(b, 0, l);
            }
            in.close();
            dataOutputStream.write(END.getBytes());
            dataOutputStream.write((PREFIX + BOUNDER + PREFIX + END).getBytes());
            dataOutputStream.flush();

            int i = connection.getResponseCode();
            if (i == 200) {
                return SUCCESS;
            }
        }

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

}

From source file:net.datenwerke.transloader.primitive.WrapperConverter.java

private static byte[] convert(Object wrapper) throws IOException {
    ByteArrayOutputStream arrayStream = new ByteArrayOutputStream();
    DataOutputStream dataStream = new DataOutputStream(arrayStream);
    write(wrapper, dataStream);//from  w w  w.  j  a va  2  s  .co  m
    return arrayStream.toByteArray();
}

From source file:com.zf.util.Post_NetNew.java

public static String pn(Map<String, String> pams) throws Exception {
    if (null == pams) {
        return "";
    }/*from   ww  w .j av a  2 s  . c  o m*/
    String strtmp = "url";
    URL url = new URL(pams.get(strtmp));
    pams.remove(strtmp);
    strtmp = "body";
    String body = pams.get(strtmp);
    pams.remove(strtmp);
    strtmp = "POST";
    if (StringUtils.isEmpty(body))
        strtmp = "GET";
    HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
    httpConn.setUseCaches(false);
    httpConn.setRequestMethod(strtmp);
    for (String pam : pams.keySet()) {
        httpConn.setRequestProperty(pam, pams.get(pam));
    }
    if ("POST".equals(strtmp)) {
        httpConn.setDoOutput(true);
        httpConn.setDoInput(true);
        DataOutputStream dos = new DataOutputStream(httpConn.getOutputStream());
        dos.writeBytes(body);
        dos.flush();
    }
    int resultCode = httpConn.getResponseCode();
    StringBuilder sb = new StringBuilder();
    sb.append(resultCode).append("\n");
    String readLine;
    InputStream stream;
    try {
        stream = httpConn.getInputStream();
    } catch (Exception ignored) {
        stream = httpConn.getErrorStream();
    }
    try {
        BufferedReader responseReader = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
        while ((readLine = responseReader.readLine()) != null) {
            sb.append(readLine).append("\n");
        }
    } catch (Exception ignored) {
    }

    return sb.toString();
}