Example usage for java.io DataInputStream DataInputStream

List of usage examples for java.io DataInputStream DataInputStream

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Introduction

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

Prototype

public DataInputStream(InputStream in)

Source Link

Document

Creates a DataInputStream that uses the specified underlying InputStream.

Usage

From source file:com.polivoto.networking.ServicioDeIPExterna.java

public static String obtenerIPExterna() {
    String ip = null;/*from  w w  w. j  a va 2s .c  om*/
    try {
        HttpURLConnection con = (HttpURLConnection) new URL(GET_EXTERNAL_HOST).openConnection();
        DataInputStream entrada = new DataInputStream(con.getInputStream());
        int length;
        byte[] chunk = new byte[64];
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        while ((length = entrada.read(chunk)) != -1)
            baos.write(chunk, 0, length);
        ip = baos.toString();
        baos.close();
        entrada.close();
        con.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
    }
    System.out.println("IP exterior: " + ip);
    return ip;
}

From source file:Main.java

public static int[] readInts(String file) throws IOException {
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(file), 4 * 1024));
    try {/*  w  w w.j  a v  a 2 s .  co m*/
        int len = in.readInt();
        int[] ints = new int[len];
        for (int i = 0; i < len; i++) {
            ints[i] = in.readInt();
        }
        return ints;
    } finally {
        in.close();
    }
}

From source file:Main.java

public static float[] readFloats(String file) throws IOException {
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(file), 4 * 1024));
    try {// w  w w .j a va2  s . c  om
        int len = in.readInt();
        float[] floats = new float[len];
        for (int i = 0; i < len; i++) {
            floats[i] = in.readFloat();
        }
        return floats;
    } finally {
        in.close();
    }
}

From source file:Main.java

public static Object[] readSettings(String file) throws IOException {
    DataInputStream in = new DataInputStream(new FileInputStream(file));
    try {//from w  w  w . ja  v a2 s. c o m
        Object[] res = new Object[in.readInt()];
        for (int i = 0; i < res.length; i++) {
            char cl = in.readChar();
            switch (cl) {
            case 'S':
                res[i] = in.readUTF();
                break;
            case 'F':
                res[i] = in.readFloat();
                break;
            case 'D':
                res[i] = in.readDouble();
                break;
            case 'I':
                res[i] = in.readInt();
                break;
            case 'L':
                res[i] = in.readLong();
                break;
            case 'B':
                res[i] = in.readBoolean();
                break;
            case 'Y':
                res[i] = in.readByte();
                break;
            default:
                throw new IllegalStateException("cannot read type " + cl + " from " + file);
            }
        }
        return res;
    } finally {
        in.close();
    }
}

From source file:Main.java

/**
 * Reads in model 83 points and returns a double array float containing the
 * coordinates x & y./*w ww  .  j av  a 2  s  .c o  m*/
 */
public static float[][][] readBinSFSV(String dir, String fileName) {
    float[][][] array3D = new float[60][83][3];
    float x;
    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        for (int k = 0; k < 3; k++) {
            for (int j = 0; j < 83; j++) {
                for (int i = 0; i < 60; i++) {
                    x = in.readFloat();
                    array3D[i][j][k] = x;
                }
            }
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return array3D;
}

From source file:Main.java

/**
 * Reads in model 83 points and returns a double array float containing the
 * coordinates x & y./*from w w w  . j  a va2 s  .com*/
 */
public static float[][] readBinModel83Pt2DFloat(String dir, String fileName) {
    float[][] array2D = new float[83][2];
    float x;
    int i = 0;
    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        while (true) {
            x = in.readFloat();
            array2D[i][0] = x;
            x = in.readFloat();
            array2D[i][1] = x;
            i++;
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return array2D;
}

From source file:Main.java

private static String bytesToString(byte[] bytes) {
    if (bytes == null) {
        return null;
    }// www. ja v a2s .c  o m
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    DataInputStream dis = new DataInputStream(bais);
    String res = "";
    try {
        res = dis.readUTF();
    } catch (IOException ex) {
    } finally {
        try {
            dis.close();
            bais.close();
        } catch (IOException ex1) {
        }
        dis = null;
        bais = null;
    }
    return res;
}

From source file:nl.dreamkernel.s4.tweaker.util.RuntimeExec.java

public static String[] execute(String[] commands, boolean needResponce) {
    try {/*from   w  w w .  ja  va  2s.  co m*/
        Process process = Runtime.getRuntime().exec(commands);
        if (needResponce) {
            DataInputStream inputStream = new DataInputStream(process.getInputStream());
            if (inputStream != null) {
                String ret = "";
                int size = 0;
                byte[] buffer = new byte[1024];
                try {
                    do {
                        size = inputStream.read(buffer);
                        if (size > 0) {
                            ret += new String(buffer, 0, size, HTTP.UTF_8);
                        }
                    } while (inputStream.available() > 0);
                } catch (IOException e) {
                }
                return ret.split("\n");
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static String[] getUvValues() {
    ArrayList<String> value = new ArrayList<String>();

    try {/* w ww  .  java2 s .  c o  m*/
        // Open the file that is the first
        // command line parameter
        FileInputStream fstream = null;
        File f = new File("/sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels");
        if (f.exists()) {
            fstream = new FileInputStream("/sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels");
        } else {
            File ff = new File("/sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table");
            if (ff.exists()) {
                fstream = new FileInputStream("/sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table");
            }
        }
        // Get the object of DataInputStream
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine;
        // Read File Line By Line
        while ((strLine = br.readLine()) != null) {
            strLine = strLine.trim();

            if ((strLine.length() != 0)) {
                String[] val = strLine.split("\\s+");
                value.add(val[1]);
            }

        }
        // Close the input stream
        in.close();
    } catch (Exception e) {// Catch exception if any
        System.err.println("Error: " + e.getMessage());
    }
    String[] values = new String[value.size() - 1];
    values = value.toArray(values);
    return values;
}

From source file:Main.java

/**
 * Read the featureVector_Shape.dat file.
 * Build the double array and return it.
 * k : number of rows// ww  w  . j  a v  a 2  s.c  om
 * n : number of columns
 */
public static float[][] readBinFloatDoubleArray(String dir, String fileName, int k, int n) {
    float[][] array2D = new float[k][n];
    float x;
    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        for (int i = 0; i < k; i++) {
            for (int j = 0; j < n; j++) {
                x = in.readFloat();
                array2D[i][j] = x;
            }
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return array2D;
}