Example usage for java.nio ByteBuffer putInt

List of usage examples for java.nio ByteBuffer putInt

  1. HOME
  2. Java
  3. java
  4. java.nio.*
  5. ByteBuffer
  6. putInt

Introduction

In this page you can find the example usage for java.nio ByteBuffer putInt.

Prototype

public abstract ByteBuffer putInt(int value);

Source Link

Document

Writes the given int to the current position and increases the position by 4.

Usage

From source file:edu.berkeley.sparrow.examples.ProtoFrontendAsync.java

public static List<TTaskSpec> generateJob(int numTasks, int benchmarkId, int benchmarkIterations) {
    // Pack task parameters
    ByteBuffer message = ByteBuffer.allocate(8);
    message.putInt(benchmarkId);
    message.putInt(benchmarkIterations);

    List<TTaskSpec> out = new ArrayList<TTaskSpec>();
    for (int taskId = 0; taskId < numTasks; taskId++) {
        TTaskSpec spec = new TTaskSpec();
        spec.setTaskId(Integer.toString(taskId));
        spec.setMessage(message.array());
        out.add(spec);/* www  .  j av a 2 s.c  o m*/
    }
    return out;
}

From source file:com.pushtechnology.diffusion.examples.runnable.RandomData.java

/**
 * Serialize a {@link RandomData} value as a {@link Binary} value.
 * @param randomData The {@link RandomData} value
 * @return The {@link Binary} value//from   w  w w. j  a v  a  2  s . com
 */
static Binary toBinary(RandomData randomData) {
    final ByteBuffer buffer = ByteBuffer.allocate(16);
    buffer.putInt(randomData.getId());
    buffer.putLong(randomData.getTimestamp());
    buffer.putInt(randomData.getRandomInt());
    return Diffusion.dataTypes().binary().readValue(buffer.array());
}

From source file:com.rom.jmultipatcher.Utils.java

public static byte[] byteArrayfromInt(final int dataSize) {

    ByteBuffer intBB = ByteBuffer.allocate(4);
    return intBB.putInt(dataSize).array();
}

From source file:org.apache.camel.converter.NIOConverter.java

@Converter
public static ByteBuffer toByteBuffer(Integer value) {
    ByteBuffer buf = ByteBuffer.allocate(4);
    buf.putInt(value);
    return buf;/*w  w  w.  j  a  v  a2  s.  c  om*/
}

From source file:com.astamuse.asta4d.web.util.SecureIdGenerator.java

public static String createEncryptedURLSafeId() {
    try {//from   ww w.j  a va 2s .  c o  m
        byte[] idBytes = IdGenerator.createIdBytes();

        ByteBuffer bb = ByteBuffer.allocate(idBytes.length + 4);
        bb.put(idBytes);

        // add random salt
        bb.putInt(sr.nextInt());

        MessageDigest crypt = MessageDigest.getInstance("SHA-1");
        return Base64.encodeBase64URLSafeString(crypt.digest(bb.array()));

    } catch (NoSuchAlgorithmException e) {
        // impossible
        throw new RuntimeException(e);
    }
}

From source file:Main.java

static ByteBuffer createMsg(int state, long leader, long zxid, long epoch) {
    byte requestBytes[] = new byte[28];
    ByteBuffer requestBuffer = ByteBuffer.wrap(requestBytes);

    /*/*w w  w.jav  a  2s.c om*/
     * Building notification packet to send
     */

    requestBuffer.clear();
    requestBuffer.putInt(state);
    requestBuffer.putLong(leader);
    requestBuffer.putLong(zxid);
    requestBuffer.putLong(epoch);

    return requestBuffer;
}

From source file:org.dkf.jmule.StoragePicker.java

public static String handle(Context context, int requestCode, int resultCode, Intent data) {
    String result = null;/*from www. j ava 2 s . c o m*/
    try {

        if (resultCode == Activity.RESULT_OK && requestCode == SELECT_FOLDER_REQUEST_CODE) {
            Uri treeUri = data.getData();

            ContentResolver cr = context.getContentResolver();

            Method takePersistableUriPermissionM = cr.getClass().getMethod("takePersistableUriPermission",
                    Uri.class, int.class);
            final int takeFlags = data.getFlags()
                    & (Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
            takePersistableUriPermissionM.invoke(cr, treeUri, takeFlags);

            if (treeUri == null) {
                UIUtils.showShortMessage(context, R.string.storage_picker_treeuri_null);
                result = null;
            } else {
                DocumentFile file = DocumentFile.fromTreeUri(context, treeUri);
                if (!file.isDirectory()) {
                    UIUtils.showShortMessage(context, R.string.storage_picker_treeuri_not_directory);
                    result = null;
                } else if (!file.canWrite()) {
                    UIUtils.showShortMessage(context, R.string.storage_picker_treeuri_cant_write);
                    result = null;
                } else {
                    if (Platforms.get().saf()) {
                        LollipopFileSystem fs = (LollipopFileSystem) Platforms.fileSystem();
                        result = fs.getTreePath(treeUri);

                        // TODO - remove below code - only for testing SD card writing
                        File testFile = new File(result, "test_file.txt");
                        LOG.info("test file {}", testFile);

                        try {
                            Pair<ParcelFileDescriptor, DocumentFile> fd = fs.openFD(testFile, "rw");
                            if (fd != null && fd.first != null && fd.second != null) {
                                AndroidFileHandler ah = new AndroidFileHandler(testFile, fd.second, fd.first);
                                ByteBuffer bb = ByteBuffer.allocate(48);
                                bb.putInt(1).putInt(2).putInt(3).putInt(44).putInt(22);
                                bb.flip();
                                ah.getWriteChannel().write(bb);
                                ah.close();
                            } else {
                                LOG.error("unable to create file {}", testFile);
                            }
                        } catch (Exception e) {
                            LOG.error("unable to fill file {} error {}", testFile, e);
                        }
                    }
                }
            }
        }
    } catch (Exception e) {
        UIUtils.showShortMessage(context, R.string.storage_picker_treeuri_error);
        LOG.error("Error handling folder selection {}", e);
        result = null;
    }

    return result;
}

From source file:org.apache.blur.console.util.NodeUtil.java

public static Map<String, Object> getZookeeperStatus() throws IOException {
    String[] connections = Config.getBlurConfig().get("blur.zookeeper.connection").split(",");
    Set<String> onlineZookeepers = new HashSet<String>();
    Set<String> offlineZookeepers = new HashSet<String>();

    for (String connection : connections) {
        Socket socket = null;//from   ww  w  .  j av a2s .  co  m
        InputStream response = null;
        OutputStream question = null;
        try {
            URI parsedConnection = new URI("my://" + connection);
            String host = parsedConnection.getHost();
            int port = parsedConnection.getPort() >= 0 ? parsedConnection.getPort() : 2181;
            byte[] reqBytes = new byte[4];
            ByteBuffer req = ByteBuffer.wrap(reqBytes);
            req.putInt(ByteBuffer.wrap("ruok".getBytes()).getInt());
            socket = new Socket();
            socket.setSoLinger(false, 10);
            socket.setSoTimeout(20000);
            parsedConnection.getPort();
            socket.connect(new InetSocketAddress(host, port));

            response = socket.getInputStream();
            question = socket.getOutputStream();

            question.write(reqBytes);

            byte[] resBytes = new byte[4];

            response.read(resBytes);
            String status = new String(resBytes);
            if (status.equals("imok")) {
                onlineZookeepers.add(connection);
            } else {
                offlineZookeepers.add(connection);
            }
            socket.close();
            response.close();
            question.close();
        } catch (Exception e) {
            offlineZookeepers.add(connection);
        } finally {
            if (socket != null) {
                socket.close();
            }
            if (response != null) {
                response.close();
            }
            if (question != null) {
                question.close();
            }
        }
    }

    Map<String, Object> data = new HashMap<String, Object>();

    data.put("online", onlineZookeepers);
    data.put("offline", offlineZookeepers);

    return data;
}

From source file:org.midonet.cluster.rest_api.models.Route.java

public static UUID idOf(org.midonet.midolman.layer3.Route route) {
    ByteBuffer buffer = ByteBuffer.allocate(50);
    buffer.putInt(route.dstNetworkAddr);
    buffer.putInt(route.srcNetworkAddr);
    buffer.putInt(route.nextHopGateway);
    buffer.putInt(route.weight);/*from ww  w . ja v a 2 s  . c o m*/
    buffer.put((byte) (route.dstNetworkLength & 0xFF));
    buffer.put((byte) (route.srcNetworkLength & 0xFF));
    buffer.putLong(route.nextHopPort.getMostSignificantBits());
    buffer.putLong(route.nextHopPort.getLeastSignificantBits());
    buffer.putLong(route.routerId.getMostSignificantBits());
    buffer.putLong(route.routerId.getLeastSignificantBits());
    return UUID.nameUUIDFromBytes(buffer.array());
}

From source file:ja.lingo.engine.util.EngineFiles.java

private static void appendFile(String fileName, FileOutputStream fos, boolean prependWithLength)
        throws IOException {
    FileInputStream fis = new FileInputStream(fileName);
    FileChannel fic = fis.getChannel();
    FileChannel foc = fos.getChannel();

    ByteBuffer buffer = ByteBuffer.allocate(COPY_BUFFER_SIZE);

    // put header: length (1 int = 4 bytes)
    if (prependWithLength) {
        buffer.putInt((int) new File(fileName).length());
    }/*from ww w  . j  a  v a  2 s  .  c  om*/

    // put body
    do {
        buffer.flip();
        foc.write(buffer);
        buffer.clear();
    } while (fic.read(buffer) != -1);
    fic.close();
    // NOTE: do not close 'foc'

    Files.delete(fileName);
}