Example usage for java.nio ByteBuffer put

Introduction

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

Prototype

public ByteBuffer put(ByteBuffer src)

Source Link

Document

Writes all the remaining bytes of the src byte buffer to this buffer's current position, and increases both buffers' position by the number of bytes copied.

Usage

From source file:com.shuffle.p2p.Bytestring.java

public Bytestring prepend(Bytestring pre) {
    ByteBuffer target = ByteBuffer.wrap(new byte[bytes.length + pre.bytes.length]);
    target.put(pre.bytes);
    target.put(bytes);/*  w w  w .  ja  v a2  s  . c o m*/
    return new Bytestring(target.array());
}

From source file:net.jenet.CommandHeader.java

public void toBuffer(ByteBuffer buffer) {
    buffer.put(command);
    buffer.put(channelID);/*from   w  ww  .  ja  v  a2  s. c  o  m*/
    buffer.put(flags);
    buffer.put(reserved);
    buffer.putInt(commandLength);
    buffer.putInt(reliableSequenceNumber);
}

From source file:com.rinke.solutions.pinball.io.UsbConnector.java

@Override
protected void send(byte[] data, ConnectionHandle handle) {
    IntBuffer transfered = IntBuffer.allocate(1);
    ByteBuffer buffer = ByteBuffer.allocateDirect(data.length);
    buffer.put(data);
    UsbHandle usb = (UsbHandle) handle;/*from   w  ww.j a  v a 2  s. com*/
    // Use device handle here
    int res = LibUsb.bulkTransfer(usb.getDeviceHandle(), (byte) 0x01, buffer, transfered, 4000);
    if (res != LibUsb.SUCCESS)
        throw new LibUsbException("Control transfer failed", res);
    if (transfered.get() != data.length) {
        log.error("unexpected length returned on bulk: {}", transfered.get());
    }
}

From source file:edu.umass.cs.gigapaxos.paxospackets.AcceptPacket.java

@Override
public synchronized byte[] toBytes() {
    long t = System.nanoTime();
    if (!(PaxosPacket.BYTEIFICATION && IntegerMap.allInt()))
        return super.toBytes();

    if (this.getByteifiedSelf() != null)
        return this.getByteifiedSelf();

    // else construct
    byte[] buf = super.toBytes(false);
    byte[] bytes = new byte[buf.length
            // ProposalPacket.slot
            + SIZEOF_PROPOSAL/*from  w  ww.  j a va2  s.  com*/
            // PValuePacket:ballot, recovery, medianCheckpointedSlot,
            // noCoalesce
            + SIZEOF_PVALUE
            // AcceptPacket.sender
            + SIZEOF_ACCEPT];
    ByteBuffer bbuf = ByteBuffer.wrap(bytes);

    // request
    bbuf.put(buf);
    // proposal
    bbuf.putInt(this.slot)
            // pvalue
            .putInt(this.ballot.ballotNumber).putInt(this.ballot.coordinatorID)
            .put(this.isRecovery() ? (byte) 1 : 0).putInt(this.getMedianCheckpointedSlot()).put((byte) 0)
            // accept
            .putInt(this.sender);

    assert (bbuf.remaining() == 0); // exact alignment

    this.setByteifiedSelf(bytes);

    if (PaxosMessenger.INSTRUMENT_SERIALIZATION && Util.oneIn(100))
        DelayProfiler.updateDelayNano("accept->", t, this.batchSize() + 1);

    return bytes;
}

From source file:com.netflix.aegisthus.pig.AegisthusLoadCaster.java

@Override
public Double bytesToDouble(byte[] arg0) throws IOException {
    if (arg0 == null || arg0.length == 0) {
        return null;
    }//from   w ww  .j a va  2s .co m
    try {
        byte[] by = hex.decode(arg0);
        ByteBuffer bb = ByteBuffer.allocate(by.length);
        bb.put(by);
        bb.position(0);
        return bb.getDouble();
    } catch (Exception e) {
        LOG.error("failed to convert " + new String(arg0) + " to double");
        return null;
    }
}

From source file:com.netflix.aegisthus.pig.AegisthusLoadCaster.java

@Override
public Float bytesToFloat(byte[] arg0) throws IOException {
    if (arg0 == null || arg0.length == 0) {
        return null;
    }//from ww w . ja v  a  2 s  .  c o m
    try {
        byte[] by = hex.decode(arg0);
        ByteBuffer bb = ByteBuffer.allocate(by.length);
        bb.put(by);
        bb.position(0);
        return bb.getFloat();
    } catch (Exception e) {
        LOG.error("failed to convert " + new String(arg0) + " to float");
        return null;
    }
}

From source file:com.rinke.solutions.pinball.io.UsbConnector.java

@Override
protected byte[] receive(ConnectionHandle h, int len) {
    byte[] data = new byte[len];
    IntBuffer transfered = IntBuffer.allocate(1);
    ByteBuffer buffer = ByteBuffer.allocateDirect(data.length);
    buffer.put(data);
    // Use device handle here
    UsbHandle usb = (UsbHandle) h;//w  w w .  j ava  2 s .  c  om
    int res = LibUsb.bulkTransfer(usb.getDeviceHandle(), (byte) 0x81, buffer, transfered, 4000);
    if (res != LibUsb.SUCCESS)
        throw new LibUsbException("Control transfer failed", res);
    int read = transfered.get();
    if (read != data.length) {
        log.error("unexpected length returned on bulk: {}", read);
    }
    return data;
}

From source file:com.facebook.infrastructure.net.UdpConnection.java

public boolean write(Message message, EndPoint to) throws IOException {
    boolean bVal = true;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(bos);
    Message.serializer().serialize(message, dos);
    byte[] data = bos.toByteArray();
    if (data.length > 0) {
        logger_.trace("Size of Gossip packet " + data.length);
        byte[] protocol = BasicUtilities.intToByteArray(protocol_);
        ByteBuffer buffer = ByteBuffer.allocate(data.length + protocol.length);
        buffer.put(protocol);
        buffer.put(data);//from  w w  w. j a  v  a 2 s . c o m
        buffer.flip();

        int n = socketChannel_.send(buffer, to.getInetAddress());
        if (n == 0) {
            bVal = false;
        }
    }
    return bVal;
}

From source file:edu.tamu.tcat.crypto.bouncycastle.SecureTokenImpl.java

private byte[] createToken(ByteBuffer content) throws NoSuchAlgorithmException {
    byte[] bytes = new byte[content.remaining()];
    ByteBuffer tokenBytes = ByteBuffer.wrap(bytes);
    content.position(0);//from  w  ww  .j a v  a 2  s  .  co  m
    tokenBytes.put(content);
    return bytes;
}

From source file:gobblin.util.io.StreamUtilsTest.java

private void verifyBuffer(byte[] srcBytes, ByteBuffer buffer) throws IOException {
    buffer.put(srcBytes);
    buffer.flip();/*from w ww  . jav a 2s  . c  om*/

    ByteArrayOutputStream bOs = new ByteArrayOutputStream();
    StreamUtils.byteBufferToOutputStream(buffer, bOs);
    Assert.assertEquals(bOs.toByteArray(), srcBytes);

    bOs = new ByteArrayOutputStream();
    buffer.rewind();

    // consume one character from the buf; make sure it is not included in the output by
    // byteBufferToOutputStream
    buffer.getChar();
    StreamUtils.byteBufferToOutputStream(buffer, bOs);
    byte[] offByTwo = bOs.toByteArray();
    Assert.assertEquals(offByTwo.length, srcBytes.length - 2);
    for (int i = 0; i < offByTwo.length; i++) {
        Assert.assertEquals(offByTwo[i], srcBytes[i + 2]);
    }
}