Example usage for java.io DataOutputStream close

Introduction

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

Prototype

@Override
public void close() throws IOException 

Source Link

Document

Closes this output stream and releases any system resources associated with the stream.

Usage

From source file:Main.java

public static byte[] intToByteArray(int number) {
    try {//from  w w w .  j  a v  a2 s.  c  o  m
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(bos);
        dos.writeInt(number);
        dos.flush();
        // lenth have to be 2 byte
        byte[] d = bos.toByteArray();
        dos.close();

        return d;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:Main.java

public static byte[] longToByteArray(long number) {
    try {/*from www. j  a va 2  s  . c o  m*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(bos);
        dos.writeLong(number);
        dos.flush();
        // lenth have to be 2 byte
        byte[] d = bos.toByteArray();
        dos.close();

        return d;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.linkedin.pinot.perf.ForwardIndexWriterBenchmark.java

public static void convertRawToForwardIndex(File rawFile) throws Exception {
    List<String> lines = IOUtils.readLines(new FileReader(rawFile));
    int totalDocs = lines.size();
    int max = Integer.MIN_VALUE;
    int maxNumberOfMultiValues = Integer.MIN_VALUE;
    int totalNumValues = 0;
    int data[][] = new int[totalDocs][];
    for (int i = 0; i < lines.size(); i++) {
        String line = lines.get(i);
        String[] split = line.split(",");
        totalNumValues = totalNumValues + split.length;
        if (split.length > maxNumberOfMultiValues) {
            maxNumberOfMultiValues = split.length;
        }/*from   w w  w .  j av  a2s.  c o m*/
        data[i] = new int[split.length];
        for (int j = 0; j < split.length; j++) {
            String token = split[j];
            int val = Integer.parseInt(token);
            data[i][j] = val;
            if (val > max) {
                max = val;
            }
        }
    }
    int maxBitsNeeded = (int) Math.ceil(Math.log(max) / Math.log(2));
    int size = 2048;
    int[] offsets = new int[size];
    int bitMapSize = 0;
    File outputFile = new File("output.mv.fwd");

    FixedBitMultiValueWriter fixedBitSkipListSCMVWriter = new FixedBitMultiValueWriter(outputFile, totalDocs,
            totalNumValues, maxBitsNeeded);

    for (int i = 0; i < totalDocs; i++) {
        fixedBitSkipListSCMVWriter.setIntArray(i, data[i]);
        if (i % size == size - 1) {
            MutableRoaringBitmap rr1 = MutableRoaringBitmap.bitmapOf(offsets);
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            DataOutputStream dos = new DataOutputStream(bos);
            rr1.serialize(dos);
            dos.close();
            // System.out.println("Chunk " + i / size + " bitmap size:" + bos.size());
            bitMapSize += bos.size();
        } else if (i == totalDocs - 1) {
            MutableRoaringBitmap rr1 = MutableRoaringBitmap.bitmapOf(Arrays.copyOf(offsets, i % size));
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            DataOutputStream dos = new DataOutputStream(bos);
            rr1.serialize(dos);
            dos.close();
            // System.out.println("Chunk " + i / size + " bitmap size:" + bos.size());
            bitMapSize += bos.size();
        }
    }
    fixedBitSkipListSCMVWriter.close();
    System.out.println("Output file size:" + outputFile.length());
    System.out.println("totalNumberOfDoc\t\t\t:" + totalDocs);
    System.out.println("totalNumberOfValues\t\t\t:" + totalNumValues);
    System.out.println("chunk size\t\t\t\t:" + size);
    System.out.println("Num chunks\t\t\t\t:" + totalDocs / size);
    int numChunks = totalDocs / size + 1;
    int totalBits = (totalNumValues * maxBitsNeeded);
    int dataSizeinBytes = (totalBits + 7) / 8;

    System.out.println("Raw data size with fixed bit encoding\t:" + dataSizeinBytes);
    System.out.println("\nPer encoding size");
    System.out.println();
    System.out.println("size (offset + length)\t\t\t:" + ((totalDocs * (4 + 4)) + dataSizeinBytes));
    System.out.println();
    System.out.println("size (offset only)\t\t\t:" + ((totalDocs * (4)) + dataSizeinBytes));
    System.out.println();
    System.out.println("bitMapSize\t\t\t\t:" + bitMapSize);
    System.out.println("size (with bitmap)\t\t\t:" + (bitMapSize + (numChunks * 4) + dataSizeinBytes));

    System.out.println();
    System.out.println("Custom Bitset\t\t\t\t:" + (totalNumValues + 7) / 8);
    System.out.println("size (with custom bitset)\t\t\t:"
            + (((totalNumValues + 7) / 8) + (numChunks * 4) + dataSizeinBytes));
}

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From source file:Main.java

public static void runAsRoot(String[] commands) throws IOException, InterruptedException {
    Process p = Runtime.getRuntime().exec("su");
    DataOutputStream os = new DataOutputStream(p.getOutputStream());
    for (String cmd : commands) {
        os.writeBytes(cmd + "\n");
    }//from ww w  .ja v  a2 s .c o m
    os.writeBytes("exit\n");
    os.flush();
    os.close();
    p.waitFor();
}

---

From source file:Main.java

public static byte[] shortToByteArray(short number) {
    try {/*ww  w.j a va2s  . c  om*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(bos);
        dos.writeShort(number);
        dos.flush();
        // lenth have to be 2 byte
        byte[] d = bos.toByteArray();
        dos.close();

        return d;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:com.boubei.tss.modules.license.LicenseFactory.java

/**
 * ???//from www.ja  va2  s.  c o m
 * ????hacker??license
 * @throws Exception
 */
public static void generateKey() throws Exception {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
    keyGen.initialize(1024, new SecureRandom());
    KeyPair pair = keyGen.generateKeyPair();
    PrivateKey priv = pair.getPrivate();
    PublicKey pub = pair.getPublic();

    log.info("?");
    DataOutputStream out = new DataOutputStream(new FileOutputStream(PUBLIC_KEY_FILE));
    out.writeBytes(EasyUtils.encodeHex(pub.getEncoded()));
    out.close();
    log.info("??" + PUBLIC_KEY_FILE);

    out = new DataOutputStream(new FileOutputStream(PRIVATE_KEY_FILE));
    out.writeBytes(EasyUtils.encodeHex(priv.getEncoded()));
    out.close();
    log.info("??" + PRIVATE_KEY_FILE);
}

---

From source file:me.sonarbeserk.lockup.utils.UUIDFetcher.java

private static void writeBody(HttpURLConnection connection, String body) throws Exception {
    DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
    writer.write(body.getBytes());//from  ww w .j a  va2s. c o m
    writer.flush();
    writer.close();
}

---

From source file:com.eTilbudsavis.etasdk.network.impl.HttpURLNetwork.java

private static void addBodyIfExists(HttpURLConnection connection, Request<?> request) throws IOException {
    byte[] body = request.getBody();
    if (body != null) {
        connection.setDoOutput(true);/*from  w ww . j av  a 2 s. c o m*/
        connection.addRequestProperty(HeaderUtils.CONTENT_TYPE, request.getBodyContentType());
        DataOutputStream out = new DataOutputStream(connection.getOutputStream());
        out.write(body);
        out.close();
    }
}

---

From source file:com.krawler.esp.utils.HttpPost.java

public static String GetResponse(String postdata) {
    try {// w  w w . j  a v a 2 s .  c  om
        String s = URLEncoder.encode(postdata, "UTF-8");
        // URL u = new URL("http://google.com");
        URL u = new URL("http://localhost:7070/service/soap/");
        URLConnection uc = u.openConnection();
        uc.setDoOutput(true);
        uc.setDoInput(true);
        uc.setAllowUserInteraction(false);

        DataOutputStream dstream = new DataOutputStream(uc.getOutputStream());

        // The POST line
        dstream.writeBytes(s);
        dstream.close();

        // Read Response
        InputStream in = uc.getInputStream();
        int x;
        while ((x = in.read()) != -1) {
            System.out.write(x);
        }
        in.close();

        BufferedReader r = new BufferedReader(new InputStreamReader(in));
        StringBuffer buf = new StringBuffer();
        String line;
        while ((line = r.readLine()) != null) {
            buf.append(line);
        }
        return buf.toString();
    } catch (Exception e) {
        // throw e;
        return e.toString();
    }
}

---

From source file:com.meetingninja.csse.database.BaseDatabaseAdapter.java

protected static int sendPostPayload(URLConnection connection, String payload) throws IOException {
    Log.d(IRequest.POST, "[URL] " + connection.getURL().toString());
    logPrint(payload);//from ww  w.  ja v a  2  s .  co  m

    DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
    wr.writeBytes(payload);
    wr.flush();
    wr.close();
    return ((HttpURLConnection) connection).getResponseCode();
}

---

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