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:Main.java

public static String[] getUvTableNames() {
    ArrayList<String> Tokens = new ArrayList<String>();

    try {/*from w ww  . ja  v a  2  s.co  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[] names = strLine.replaceAll(":", "").split("\\s+");
                Tokens.add(names[0]);
            }

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

From source file:FileUtil.java

public static byte[] readFileAsBytes(String path, Integer start, Integer length) {

    byte[] byteData = null;

    try {/*from   w  w w . jav a2s  .co  m*/

        File file = new File(path);

        DataInputStream dis;
        dis = new DataInputStream(new FileInputStream(file));

        if (dis.available() > Integer.MAX_VALUE) {
            System.out.println("dis.available() > Integer.MAX_VALUE");
        }

        ByteArrayOutputStream os = new ByteArrayOutputStream(length);
        byte[] bytes = new byte[length];

        dis.skipBytes(start);
        int readBytes = dis.read(bytes, 0, length);
        os.write(bytes, 0, readBytes);

        byteData = os.toByteArray();

        dis.close();
        os.close();

    } catch (Exception e) {
        System.out.println(e);
    }

    return byteData;
}

From source file:com.ning.arecibo.util.timeline.times.TimesAndSamplesCoder.java

public static int getSizeOfTimeBytes(final byte[] timesAndSamples) {
    final DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(timesAndSamples));
    try {/* ww w .j  a va2  s  .c  om*/
        return inputStream.readInt();
    } catch (IOException e) {
        throw new IllegalStateException(String.format(
                "Exception reading timeByteCount in TimelineChunkMapper.map() for timesAndSamples %s",
                Hex.encodeHex(timesAndSamples)), e);
    }
}

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).
 *//*from w  w  w.  j  a v  a2s  . 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:flexpos.restfulConnection.java

public static ArrayList<ArrayList<String>> getRESTful(String RESTfull_URL, ArrayList<String> columnasTabla) {
    try {/*from   w  w  w.  j  av  a2s.  c  o  m*/
        URL url;
        URLConnection urlConnection;
        DataInputStream readString;
        url = new URL(RESTfull_URL);
        urlConnection = url.openConnection();
        urlConnection.setDoInput(true);
        urlConnection.setUseCaches(false);
        readString = new DataInputStream(urlConnection.getInputStream());
        String s;

        String getRequest = "";
        while ((s = readString.readLine()) != null) {
            getRequest += s;
        }
        readString.close();
        if (!"".equals(getRequest)) {
            return completeArray(getRequest, columnasTabla);
        }

    } catch (Exception ex) {
        Logger.getLogger(restfulConnection.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

From source file:com.flexdesktop.connections.restfulConnection.java

public static ArrayList<ArrayList<String>> getRESTful(String RESTfull_URL, ArrayList<String> columnasTabla) {
    try {//from ww w  . j av  a  2 s .  c  o  m
        URL url;
        URLConnection urlConnection;
        DataInputStream readString;
        url = new URL(RESTfull_URL);
        urlConnection = url.openConnection();
        urlConnection.setDoInput(true);
        urlConnection.setUseCaches(false);
        readString = new DataInputStream(urlConnection.getInputStream());
        String s;

        String getRequest = "";
        while ((s = readString.readLine()) != null) {
            getRequest += s;
        }
        readString.close();
        if (!"".equals(getRequest)) {
            return completeArray(getRequest, columnasTabla);
        }

    } catch (Exception ex) {
        Logger.getLogger(com.flexdesktop.connections.restfulConnection.class.getName()).log(Level.SEVERE, null,
                ex);
    }
    return null;
}

From source file:Main.java

static int readFirmwareFirmware(File fp) {
    try {/*from   w ww. java2s.c om*/
        FileInputStream fis = new FileInputStream(fp);
        DataInputStream dis = new DataInputStream(fis);
        if (dis.skipBytes(2048) != 2048) {
            // Log.v("DistoX", "failed skip");
            return 0; // skip 8 bootloader blocks
        }
        byte[] buf = new byte[64];
        if (dis.read(buf, 0, 64) != 64) {
            // Log.v("DistoX", "failed read");
            return 0;
        }
        for (int k = 0; k < 64; ++k) {
            // Log.v("DistoX", "byte " + k + " " + buf[k] + " sign " + signature[k] );
            if (k == 6 || k == 7 || k == 16 || k == 17)
                continue;
            if (buf[k] != signature[k])
                return 0;
        }
        if (buf[7] == (byte) 0xf8) {
            if (buf[6] == (byte) 0x34) {
                return 21;
            } else if (buf[6] == (byte) 0x3a) {
                return 22;
            }
        } else if (buf[7] == (byte) 0xf9) {
            if (buf[6] == (byte) 0x90) {
                return 23;
            }
        } else if (buf[7] == (byte) 0xfa) {
            if (buf[6] == (byte) 0x0a) {
                return 24;
            }
        }
    } catch (IOException e) {
    }
    return 0;
}

From source file:Main.java

public static String execRootCmd(String cmd) {
    String result = "result : ";
    try {/*from ww  w. ja va 2s.c  o  m*/
        Process p = Runtime.getRuntime().exec("su ");
        OutputStream outStream = p.getOutputStream();
        DataOutputStream dOutStream = new DataOutputStream(outStream);
        InputStream inStream = p.getInputStream();
        DataInputStream dInStream = new DataInputStream(inStream);
        String str1 = String.valueOf(cmd);
        String str2 = str1 + "\n";
        dOutStream.writeBytes(str2);
        dOutStream.flush();
        String str3 = null;
        String line = "";
        while ((line = dInStream.readLine()) != null) {
            Log.d("result", str3);
            str3 += line;
        }
        dOutStream.writeBytes("exit\n");
        dOutStream.flush();
        p.waitFor();
        return result;
    } catch (Exception e) {
        e.printStackTrace();
        return result;
    }
}

From source file:MainClass.java

public void run() {
    try {/*from   ww  w . j  av  a 2 s .  com*/
        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 readFromInternalStorage(Context context, String fileName) {

    File file = new File(context.getFilesDir(), fileName);

    try {/*from www. ja  v a2  s.  c  o  m*/
        FileInputStream fis = new FileInputStream(file);
        DataInputStream in = new DataInputStream(fis);
        BufferedReader br = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
        String line;

        StringBuilder stringBuilder = new StringBuilder();
        while ((line = br.readLine()) != null) {
            stringBuilder.append(line);
        }
        String json = stringBuilder.toString();

        br.close();
        in.close();
        fis.close();

        return json;
    } catch (IOException e) {
        Log.e(TAG, e.getMessage(), e);
    }

    return null;
}