Example usage for java.nio ByteBuffer putLong

List of usage examples for java.nio ByteBuffer putLong

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Introduction

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

Prototype

public abstract ByteBuffer putLong(long value);

Source Link

Document

Writes the given long to the current position and increases the position by 8.

Usage

From source file:org.apache.hama.monitor.fd.UDPSensor.java

/**
 * The heartbeat function, signifying its existence.
 *///ww  w .  j  a  v  a2s  .c o m
@Override
public void heartbeat() throws IOException {
    ByteBuffer heartbeat = ByteBuffer.allocate(8);
    heartbeat.clear();
    heartbeat.putLong(sequence.incrementAndGet());
    heartbeat.flip();
    channel.send(heartbeat, new InetSocketAddress(this.host, this.port));
    if (LOG.isDebugEnabled()) {
        LOG.debug("Heartbeat sequence " + sequence.get() + " is sent to " + this.host + ":" + this.port);
    }
}

From source file:org.apache.hadoop.hdfs.hoss.db.PathStore.java

/**
 * //ww  w .j a va  2  s.  com
 * @param pathId
 * @param objId:the index-th block in fileblockstore
 * @param offset
 * @return
 */
public PathPosition put(long objId, long pathId, long offset) {
    String path = getFixedPath(pathId);
    //set the block index in the fileblockstore
    final WriteBuffer wbuf = fbs.set((int) objId);
    final ByteBuffer buf = wbuf.buf();
    StringSerializer.fromStringToBuffer(buf, path, PATHWIDTH);
    buf.putLong(offset);
    buf.flip();
    wbuf.save();
    PathPosition pp = new PathPosition(path, offset);
    return pp;
}

From source file:com.jivesoftware.os.rcvs.api.keys.SymetricalHashableKeyTest.java

License:asdf

public byte[] longBytes(long x) {
    ByteBuffer buffer = ByteBuffer.allocate(8);
    buffer.putLong(x);
    return buffer.array();
}

From source file:com.knewton.mapreduce.example.StudentEventMapperTest.java

/**
 * Test the end time range filters in the mapper.
 *//*from  w  ww  .  j  a  v  a  2 s  . c  om*/
@Test
public void testEndRangeStudentEvents() throws Exception {
    conf.set(PropertyConstants.END_DATE.txt, "2013-03-28T23:03:02.394Z");
    underTest.setup(mockedContext);

    // send event outside of time range

    // Mar.29.2013.03:07:21.0.0
    DateTime dt = new DateTime(2013, 3, 29, 3, 7, 21, DateTimeZone.UTC);
    long eventId = dt.getMillis();
    ByteBuffer randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    ByteBuffer columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId);
    columnName.rewind();
    CellName cellName = simpleDenseCellType.cellFromByteBuffer(columnName);
    Cell column = new BufferCell(cellName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    underTest.map(randomKey, column, mockedContext);
    verify(mockedContext, never()).write(any(LongWritable.class), any(StudentEventWritable.class));

    // send event inside of time range

    // Mar.28.2013.19:53:38.0.0
    dt = new DateTime(2013, 3, 28, 19, 53, 10, DateTimeZone.UTC);
    eventId = dt.getMillis();
    randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId);
    columnName.rewind();
    cellName = simpleDenseCellType.cellFromByteBuffer(columnName);
    column = new BufferCell(cellName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    underTest.map(randomKey, column, mockedContext);
    verify(mockedContext).write(any(LongWritable.class), any(StudentEventWritable.class));
}

From source file:com.openteach.diamond.network.waverider.command.Command.java

/**
 * ByteBuffer/*w w w  . j a  va  2  s.co m*/
 * @return
 */
public ByteBuffer marshall() {
    int length = getSize();
    ByteBuffer buffer = ByteBuffer.allocate(length);
    buffer.putLong(type);
    buffer.putInt(length);
    buffer.put(payLoad);
    buffer.flip();
    payLoad.clear();
    return buffer;
}

From source file:com.knewton.mapreduce.example.StudentEventMapperTest.java

/**
 * Test the start time range filters in the mapper.
 *//* ww w  .  j  a  v a2 s. com*/
@Test
public void testMapWithStartRangeStudentEvents() throws Exception {
    conf.set(PropertyConstants.START_DATE.txt, "2013-03-28T23:03:02.394Z");
    underTest.setup(mockedContext);

    // send event outside of time range

    // Mar.28.2013.19:53:38.0.0
    DateTime dt = new DateTime(2013, 3, 28, 19, 53, 10, DateTimeZone.UTC);
    long eventId = dt.getMillis();

    ByteBuffer randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    ByteBuffer columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId);
    columnName.rewind();
    CellName cellName = simpleDenseCellType.cellFromByteBuffer(columnName);
    Cell column = new BufferCell(cellName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));

    underTest.map(randomKey, column, mockedContext);
    verify(mockedContext, never()).write(any(LongWritable.class), any(StudentEventWritable.class));

    // send event inside of time range

    // Mar.29.2013.03:07:21.0.0
    dt = new DateTime(2013, 3, 29, 3, 7, 21, DateTimeZone.UTC);
    eventId = dt.getMillis();

    columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId);
    columnName.rewind();
    cellName = simpleDenseCellType.cellFromByteBuffer(columnName);
    column = new BufferCell(cellName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    underTest.map(randomKey, column, mockedContext);
    verify(mockedContext).write(any(LongWritable.class), any(StudentEventWritable.class));
}

From source file:org.apache.bookkeeper.stream.SSN.java

/**
 * Serialize the SSN into a string using given <i>version</i>.
 *
 * @param version version used to serialize SSN
 * @return serialized ssn/*from  w w  w .java2  s  .  c  o m*/
 */
public String serialize(byte version) {
    Preconditions.checkArgument(version == CUR_VERSION,
            "Only support version less than or equal to " + CUR_VERSION);
    byte[] data = new byte[LENGTH];
    ByteBuffer bb = ByteBuffer.wrap(data);
    bb.put(version);
    bb.putLong(segmentId);
    bb.putLong(entryId);
    bb.putLong(slotId);
    return Base64.encodeBase64String(data);
}

From source file:experts.net.ip6.ULUA.java

/**
 * Generate Global ID according to RFC 4193 Section 3.2.2.
 *
 * @param timeStamp/*  www . j a  va2 s .  co  m*/
 *            64-bit NTP format
 */
public final void generateGlobalID(long timeStamp) {
    ByteBuffer buf = ByteBuffer.allocate(16);

    buf.putLong(timeStamp);
    interfaceID.forEach(buf::putShort);

    byte[] digest = DigestUtils.sha1(buf.array());

    buf = ByteBuffer.allocate(6);
    buf.put(GLOBAL_ID_PREFIX).put(digest, 15, 5);

    globalID = toList(buf);
}

From source file:com.knewton.mapreduce.SSTableColumnMapperTest.java

/**
 * Test the start time range filters in the mapper.
 * //ww w. j av  a 2 s . c o m
 * @throws IOException
 * @throws InterruptedException
 * @throws DecoderException
 */
@Test
public void testStartRangeStudentEvents() throws IOException, InterruptedException, DecoderException {

    // Mar.28.2013.19:53:38.0.0
    DateTime dt = new DateTime(2013, 3, 28, 19, 53, 10, DateTimeZone.UTC);
    long eventId1 = dt.getMillis();
    // Mar.29.2013.03:07:21.0.0
    dt = new DateTime(2013, 3, 29, 3, 7, 21, DateTimeZone.UTC);
    long eventId5 = dt.getMillis();

    ByteBuffer columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId1);
    columnName.rewind();
    IColumn column = new Column(columnName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    Configuration conf = new Configuration();
    conf.set(StudentEventAbstractMapper.START_DATE_PARAMETER_NAME, "2013-03-28T23:03:02.394-04:00");
    DoNothingStudentEventMapper dnsem = new DoNothingStudentEventMapper();
    Mapper<ByteBuffer, IColumn, LongWritable, StudentEventWritable>.Context context = dnsem.new Context(conf,
            new TaskAttemptID(), null, null, null, new DoNothingStatusReporter(), null);
    dnsem.setup(context);
    dnsem.map(RandomStudentEventGenerator.getRandomIdBuffer(), column, context);
    assertNull(dnsem.getRowKey());
    columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId5);
    columnName.rewind();
    column = new Column(columnName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    ByteBuffer randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    dnsem.map(randomKey, column, context);
    assertEquals(dnsem.getRowKey(), randomKey);
}

From source file:com.knewton.mapreduce.SSTableColumnMapperTest.java

/**
 * Test the end time range filters in the mapper.
 * /*from w ww  .  j  a va  2  s  .co  m*/
 * @throws IOException
 * @throws InterruptedException
 * @throws DecoderException
 */
@Test
public void testEndRangeStudentEvents() throws IOException, InterruptedException, DecoderException {

    // Mar.28.2013.19:53:38.0.0
    DateTime dt = new DateTime(2013, 3, 28, 19, 53, 10, DateTimeZone.UTC);
    long eventId1 = dt.getMillis();
    // Mar.29.2013.03:07:21.0.0
    dt = new DateTime(2013, 3, 29, 3, 7, 21, DateTimeZone.UTC);
    long eventId5 = dt.getMillis();

    ByteBuffer columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId5);
    columnName.rewind();
    IColumn column = new Column(columnName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    Configuration conf = new Configuration();
    conf.set(StudentEventAbstractMapper.END_DATE_PARAMETER_NAME, "2013-03-28T23:03:02.394-04:00");
    DoNothingStudentEventMapper dnsem = new DoNothingStudentEventMapper();
    Mapper<ByteBuffer, IColumn, LongWritable, StudentEventWritable>.Context context = dnsem.new Context(conf,
            new TaskAttemptID(), null, null, null, new DoNothingStatusReporter(), null);
    dnsem.setup(context);
    dnsem.map(RandomStudentEventGenerator.getRandomIdBuffer(), column, context);
    assertNull(dnsem.getRowKey());
    ByteBuffer randomKey = RandomStudentEventGenerator.getRandomIdBuffer();
    columnName = ByteBuffer.wrap(new byte[8]);
    columnName.putLong(eventId1);
    columnName.rewind();
    column = new Column(columnName, ByteBuffer.wrap(Hex.decodeHex(eventDataString.toCharArray())));
    dnsem.map(randomKey, column, context);
    assertEquals(dnsem.getRowKey(), randomKey);
}