Example usage for java.io DataInputStream DataInputStream

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:Main.java

public static int byteArrayToInt(byte[] input) {
    try {/*from ww w. j  ava2  s  . c o m*/
        ByteArrayInputStream bis = new ByteArrayInputStream(input);
        DataInputStream dis = new DataInputStream(bis);
        int numb = dis.readInt();
        dis.close();
        return numb;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:Main.java

public static String getSuVersion() {
    Process process = null;/*from w  ww .  j a  va  2s .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) {
                return inLine;
            }
        } else {
            os.writeBytes("exit\n");
        }
    } catch (IOException e) {
        Log.e(TAG, "Problems reading current version.", e);
        return null;
    } finally {
        if (process != null) {
            process.destroy();
        }
    }

    return null;
}

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From source file:Main.java

/**
 *
 * Resolve DNS name into IP address/*  w w w  .j a v  a  2  s .com*/
 *
 * @param host DNS name
 * @return IP address in integer format
 * @throws IOException
 */
public static int resolve(String host) throws IOException {
    Socket localSocket = new Socket(ADB_HOST, ADB_PORT);
    DataInputStream dis = new DataInputStream(localSocket.getInputStream());
    OutputStream os = localSocket.getOutputStream();
    int count_read = 0;

    if (localSocket == null || dis == null || os == null)
        return -1;
    String cmd = "dns:" + host;

    if (!sendAdbCmd(dis, os, cmd))
        return -1;

    count_read = dis.readInt();
    localSocket.close();
    return count_read;
}

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From source file:Main.java

/**
 * Locte the tun.ko driver on the filesystem  
 * @return a String with the path of the tun.ko driver
 *//*  ww w.  ja  v  a2s.  c  o m*/
public static String findTunDriverPath() {
    String tunDriverPath = "";
    String find_str;
    try {
        Process find_proc = Runtime.getRuntime().exec("find /sdcard /system /data -name tun.ko");
        DataInputStream find_in = new DataInputStream(find_proc.getInputStream());
        try {
            while ((find_str = find_in.readLine()) != null) {
                tunDriverPath = find_str;
            }
        } catch (IOException e) {
            System.exit(0);
        }
    } catch (IOException e1) {
        Log.e("OpenVpnSettings_Util", e1.toString());
    }

    //      if (new File(tunDriverPath).exists())
    //         System.out.println(tunDriverPath);
    //      else System.out.println("ERROR file does not exist: " + tunDriverPath);
    return tunDriverPath;
}

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From source file:Main.java

static boolean isJPEG(byte[] data) throws IOException {
    return internalIsJPEG(new DataInputStream(new ByteArrayInputStream(data)));
}

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From source file:MainClass.java

public void run() {
    try {//from  w ww. j  a  v a  2  s .c  o  m
        Socket client = serverSocket.accept();

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

        while (true) {
            String message = in.readUTF();
            System.out.println(message);
            System.out.print("Enter response: ");
            String response = console.readLine();

            out.writeUTF(response);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:Main.java

public static String executeHttpsPost(String url, String data, InputStream key) {
    HttpsURLConnection localHttpsURLConnection = null;
    try {//from w  w w .j a  v  a 2s  .c  o m
        URL localURL = new URL(url);
        localHttpsURLConnection = (HttpsURLConnection) localURL.openConnection();
        localHttpsURLConnection.setRequestMethod("POST");
        localHttpsURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        localHttpsURLConnection.setRequestProperty("Content-Length",
                "" + Integer.toString(data.getBytes().length));
        localHttpsURLConnection.setRequestProperty("Content-Language", "en-US");

        localHttpsURLConnection.setUseCaches(false);
        localHttpsURLConnection.setDoInput(true);
        localHttpsURLConnection.setDoOutput(true);

        localHttpsURLConnection.connect();
        Certificate[] arrayOfCertificate = localHttpsURLConnection.getServerCertificates();

        byte[] arrayOfByte1 = new byte[294];
        DataInputStream localDataInputStream = new DataInputStream(key);
        localDataInputStream.readFully(arrayOfByte1);
        localDataInputStream.close();

        Certificate localCertificate = arrayOfCertificate[0];
        PublicKey localPublicKey = localCertificate.getPublicKey();
        byte[] arrayOfByte2 = localPublicKey.getEncoded();

        for (int i = 0; i < arrayOfByte2.length; i++) {
            if (arrayOfByte2[i] != arrayOfByte1[i])
                throw new RuntimeException("Public key mismatch");
        }

        DataOutputStream localDataOutputStream = new DataOutputStream(
                localHttpsURLConnection.getOutputStream());
        localDataOutputStream.writeBytes(data);
        localDataOutputStream.flush();
        localDataOutputStream.close();

        InputStream localInputStream = localHttpsURLConnection.getInputStream();
        BufferedReader localBufferedReader = new BufferedReader(new InputStreamReader(localInputStream));

        StringBuffer localStringBuffer = new StringBuffer();
        String str1;
        while ((str1 = localBufferedReader.readLine()) != null) {
            localStringBuffer.append(str1);
            localStringBuffer.append('\r');
        }
        localBufferedReader.close();

        return localStringBuffer.toString();
    } catch (Exception localException) {
        byte[] arrayOfByte1;
        localException.printStackTrace();
        return null;
    } finally {
        if (localHttpsURLConnection != null)
            localHttpsURLConnection.disconnect();
    }
}

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From source file:cfa.vo.interop.EncodeDoubleArray.java

private static double[] byteToDouble(byte[] data) throws IOException {

    int len = data.length;

    if (len % WORDSIZE != 0) {
        throw new IOException("Array length is not divisible by wordsize");
    }//from  w  w  w  .ja v  a2 s.c o m

    int size = len / WORDSIZE;
    double[] result = new double[size];

    DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(data));

    try {

        int ii = 0;
        while (inputStream.available() > 0) {
            result[ii] = inputStream.readDouble();
            ii++;
        }

    } catch (EOFException e) {
        throw new IOException("Unable to read from dataInputStream, found EOF");

    } catch (IOException e) {
        throw new IOException("Unable to read from dataInputStream, IO error");
    }

    return result;

}

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From source file:info.dolezel.fatrat.plugins.util.FileUtils.java

/**
  * Returns the first line from the file.
  * @return <code>null</code> if the operation failed for any reason.
  *//*  w  w  w .  ja v  a2 s  .  com*/
public static String fileReadLine(String file) {
    FileInputStream fis = null;
    BufferedReader br = null;
    DataInputStream dis = null;
    InputStreamReader isr = null;

    try {
        fis = new FileInputStream(file);
        dis = new DataInputStream(fis);
        isr = new InputStreamReader(dis);
        br = new BufferedReader(isr);

        return br.readLine();
    } catch (IOException ex) {
        return null;
    } finally {
        IOUtils.closeQuietly(fis);
    }
}

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From source file:ArrayDictionary.java

/**
 * A kludge for testing ArrayDictionary//from w ww .jav  a  2  s . c o m
 */
public static void main(String[] args) {
    try {
        PrintStream out = System.out;
        DataInputStream in = new DataInputStream(System.in);

        String line = null;

        out.print("n ? ");
        out.flush();
        line = in.readLine();
        int n = Integer.parseInt(line);
        ArrayDictionary ad = new ArrayDictionary(n);

        String key = null, value = null;
        while (true) {
            out.print("action ? ");
            out.flush();
            line = in.readLine();

            switch (line.charAt(0)) {
            case 'p':
            case 'P':
                out.print("key ? ");
                out.flush();
                key = in.readLine();
                out.print("value ? ");
                out.flush();
                value = in.readLine();
                value = (String) ad.put(key, value);
                out.println("old: " + value);
                break;
            case 'r':
            case 'R':
                out.print("key ? ");
                out.flush();
                key = in.readLine();
                value = (String) ad.remove(key);
                out.println("old: " + value);
                break;
            case 'g':
            case 'G':
                out.print("key ? ");
                out.flush();
                key = in.readLine();
                value = (String) ad.get(key);
                out.println("value: " + value);
                break;
            case 'd':
            case 'D':
                out.println(ad.toString());
                break;
            case 'q':
            case 'Q':
                return;
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

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