Example usage for java.io DataOutputStream DataOutputStream

List of usage examples for java.io DataOutputStream DataOutputStream

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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 void writeSettings(String file, Object... objs) throws IOException {
    DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file), 1024));
    try {// www  .ja va2 s . c o m
        out.writeInt(objs.length);
        for (Object obj : objs) {
            char cl;
            if (obj instanceof Byte) {
                cl = 'Y';
            } else {
                cl = obj.getClass().getSimpleName().charAt(0);
            }

            out.writeChar(cl);
            if (obj instanceof String) {
                out.writeUTF((String) obj);
            } else if (obj instanceof Float) {
                out.writeFloat((Float) obj);
            } else if (obj instanceof Double) {
                out.writeDouble((Double) obj);
            } else if (obj instanceof Integer) {
                out.writeInt((Integer) obj);
            } else if (obj instanceof Long) {
                out.writeLong((Long) obj);
            } else if (obj instanceof Boolean) {
                out.writeBoolean((Boolean) obj);
            } else {
                throw new IllegalStateException("Unsupported type");
            }
        }
    } finally {
        out.close();
    }
}

From source file:WriteBinaryFile.java

private static DataOutputStream openOutputStream(String name) throws Exception {
    DataOutputStream out = null;//w  w  w .ja  v a 2s.  co m
    File file = new File(name);
    out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file)));
    return out;
}

From source file:Main.java

public static String executePost(String url, String parameters) throws IOException {

    URL request = new URL(url);
    HttpURLConnection connection = (HttpURLConnection) request.openConnection();
    connection.setDoOutput(true);/*from w ww .j a v  a 2s .co  m*/
    connection.setDoInput(true);
    connection.setInstanceFollowRedirects(false);
    connection.setRequestMethod("POST");
    connection.setRequestProperty("User-Agent", "StripeConnectAndroid");
    connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    connection.setRequestProperty("charset", "utf-8");
    connection.setRequestProperty("Content-Length", "" + Integer.toString(parameters.getBytes().length));
    connection.setUseCaches(false);

    DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
    wr.writeBytes(parameters);
    wr.flush();
    wr.close();

    String response = streamToString(connection.getInputStream());
    connection.disconnect();
    return response;

}

From source file:Main.java

/**
 * Add wave header at front pcm data./*from  ww  w . ja va  2  s .c  o  m*/
 * 
 * @param data byte array of pcm data
 * @param channel pcm channel, e.g. 1 or 2
 * @param sampleRate pcm sample rate, e.g. 22050, 44100 etc.
 * @param bits pcm bits, e.g. 8 or 16
 * @return
 */
public static byte[] PCM2Wave(byte[] data, int channel, int sampleRate, int bits) {
    int riffSize = data.length + HEADER_LENGTH;
    int chunk = channel * bits / 8;

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    try {
        // Write RIFF header
        dos.write(RIFF_array);
        dos.write(intToByteArray(riffSize));
        dos.write(WAVE_array);

        // Write format header
        dos.write(fmt_array);
        dos.write(intToByteArray(16));
        dos.write(shortToByteArray(1));
        dos.write(shortToByteArray(channel));
        dos.write(intToByteArray(sampleRate));
        dos.write(intToByteArray(sampleRate * chunk));
        dos.write(shortToByteArray(2));
        dos.write(shortToByteArray(bits));

        // Write data section
        dos.write(data_array);
        dos.write(intToByteArray(data.length));
        dos.write(data);
    } catch (IOException e) {
        e.printStackTrace();
    }

    return baos.toByteArray();
}

From source file:Main.java

private static byte[] stringToBytes(String string) {
    if (string == null) {
        return null;
    }//from ww  w.  j  av  a 2s  .c o  m
    byte[] buffer = null;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    try {
        dos.writeUTF(string);
        buffer = baos.toByteArray();
    } catch (IOException ex) {
    } finally {
        try {
            baos.close();
            dos.close();
        } catch (IOException ex1) {
        }
        baos = null;
        dos = null;
    }
    return buffer;
}

From source file:Main.java

public static Process runSuCommandAsync(Context context, String command) throws IOException {
    DataOutputStream fout = new DataOutputStream(context.openFileOutput(SCRIPT_NAME, 0));
    fout.writeBytes(command);//  w w  w.  j  a  va 2s.c o  m
    fout.close();

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

From source file:bakuposter.gcm.server.POST2GCMessage.java

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

    try {/*from  ww w .  j  a v  a 2 s  . co  m*/
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Authorization", "key=" + apiKey);
        conn.setDoOutput(true);
        ObjectMapper mapper = new ObjectMapper();
        System.out.println(content.getRegistration_ids().get(0));
        DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
        mapper.writeValue(wr, content);
        wr.flush();
        wr.close();
        int responseCode = conn.getResponseCode();
        System.out.println("responseCode = " + responseCode);
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

/**
 * The URL looks like a request for a resource, such as a JavaScript or CSS file. Write
 * the given resource to the response output in binary format (needed for images).
 *//* w  w w . j a va 2 s. c  o m*/
public static void readWriteBinaryUtil(String sxURL, String resource, OutputStream outStream)
        throws IOException {

    DataOutputStream outData = null;
    DataInputStream inData = null;
    int byteCnt = 0;
    byte[] buffer = new byte[4096];

    // get full qualified path of class
    System.out.println("RW Base Directory - " + sxURL);

    // remove class and add resource relative path
    sxURL = getResourceURL(sxURL, resource);

    System.out.println("RW Loading - " + sxURL);
    try {
        outData = new DataOutputStream(outStream);
        inData = new DataInputStream(new URL(sxURL).openConnection().getInputStream());

        while ((byteCnt = inData.read(buffer)) != -1) {
            if (outData != null && byteCnt > 0) {
                outData.write(buffer, 0, byteCnt);
            }
        }
    } catch (IOException e) {
        throw e;
    } finally {
        try {
            if (inData != null) {
                inData.close();
            }
        } catch (IOException ioe) {
        }
    }
}

From source file:MyTask.java

License:asdf

public MyTask(OutputStream dest) {
    out = new DataOutputStream(dest);
}

From source file:Main.java

public static void killProcesses(Context context, int pid, String processName) {

    String cmd = "kill -9 " + pid;
    String Command = "am force-stop " + processName + "\n";
    Process sh = null;//from   ww w  .  j a  v  a 2s  . c o  m
    DataOutputStream os = null;
    try {
        sh = Runtime.getRuntime().exec("su");
        os = new DataOutputStream(sh.getOutputStream());
        os.writeBytes(Command + "\n");
        os.writeBytes(cmd + "\n");
        os.writeBytes("exit\n");
        os.flush();

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    try {
        sh.waitFor();
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // AbLogUtil.d(AbAppUtil.class, "#kill -9 "+pid);
    // L.i(processName);
    ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    String packageName = null;
    try {
        if (processName.indexOf(":") == -1) {
            packageName = processName;
        } else {
            packageName = processName.split(":")[0];
        }

        activityManager.killBackgroundProcesses(packageName);

        //
        Method forceStopPackage = activityManager.getClass().getDeclaredMethod("forceStopPackage",
                String.class);
        forceStopPackage.setAccessible(true);
        forceStopPackage.invoke(activityManager, packageName);
    } catch (Exception e) {
        e.printStackTrace();
    }

}