Example usage for java.nio ByteBuffer getInt

Introduction

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

Prototype

public abstract int getInt();

Source Link

Document

Returns the int at the current position and increases the position by 4.

Usage

From source file:org.cloudata.core.commitlog.pipe.Bulk.java

private boolean readHeader(ByteBuffer buf) throws IOException {
    ByteBuffer headerBuf = buf.duplicate();

    if (seq < 0 && headerBuf.limit() >= readBytesLength) {
        headerBuf.position(0);//from w ww.  j a v  a 2s.c om
        seq = headerBuf.getInt();

        if (seq == Constants.PIPE_DISCONNECT) {
            LOG.debug("receive PIPE_DISCONNECT");
            throw new PipeClosing();
        }

        readBytesLength += 4;
    }

    if (dirNameBytes == null && headerBuf.limit() >= readBytesLength) {
        headerBuf.position(readBytesLength - 4);
        int len = headerBuf.getInt();
        if (len > 1000000) {
            throw new IOException("dirName byte length is too long [" + len + "]");
        }

        dirNameBytes = new byte[len];
        readBytesLength += len;
    }

    if (dirNameBytes != null && headerBuf.limit() >= readBytesLength) {
        headerBuf.position(readBytesLength - dirNameBytes.length);
        headerBuf.get(dirNameBytes);
        readBytesLength += 4;
    }

    if (headerAndPayloadSize == 0 && headerBuf.limit() >= readBytesLength) {
        headerBuf.position(readBytesLength - 4);
        headerAndPayloadSize = headerBuf.getInt();

        return true;
    }

    return false;
}

From source file:org.openhab.binding.hexabus.internal.HexaBusBinding.java

/**
 * Gets the consumption of the targetted plug in Watt.
 * //  w  w w . j  a v a2 s  .co  m
 * @param   target_ip    the ip of the targetted plug
 * 
 * @return    the power consumption in Watt
 * @throws IOException
 */
private int getConsumption(InetAddress target_ip) {
    jackdaw_sock.connect(target_ip, PLUG_PORT);

    byte[] bmsg = HexBin.decode(GET_MESSAGE);
    byte[] receiveData = new byte[1024];

    DatagramPacket outgoing = new DatagramPacket(bmsg, bmsg.length);
    DatagramPacket incoming = new DatagramPacket(receiveData, HEXABUS_RESPONSE_LENGTH);

    try {
        jackdaw_sock.send(outgoing);
    } catch (IOException e) {
        logger.debug("Send failed on Jackdaw Socket while trying to GET consumption!");
        e.printStackTrace();
    }

    try {
        jackdaw_sock.receive(incoming);
    } catch (IOException e) {
        logger.debug("Receive failed on Jackdaw Socket while trying to GET consumption!");
        e.printStackTrace();
    }

    byte[] data = incoming.getData();

    // checks if no data was received.
    if (data.length == 0) {
        logger.debug("No data was transmitted in getConsumption!");
    }

    // the last four bytes contain the consumption integer
    byte[] temp = { data[11], data[12], data[13], data[14] };
    ByteBuffer wrapped = ByteBuffer.wrap(temp);
    int val = wrapped.getInt();

    logger.debug("Power Consumption of hpp: " + val);
    return val;
}

From source file:com.sm.store.client.RemoteClientImpl.java

public int getSeqNoInt(Key key) {
    StoreParas paras = getSequence(OpType.GetSeqNoInt, key);
    ByteBuffer buf = ByteBuffer.wrap((byte[]) paras.getValue().getData());
    return buf.getInt();
}

From source file:au.org.ala.spatial.util.RecordsSmall.java

public int[] getUniqueIdx() throws Exception {
    File f = new File(filename + "records.csv.small.pointsUniqueIdx");

    int size = (int) f.length() / 4;
    int[] all = new int[size];

    byte[] e = FileUtils.readFileToByteArray(f);

    ByteBuffer bb = ByteBuffer.wrap(e);

    for (int i = 0; i < size; i++) {
        all[i] = bb.getInt();
    }//from   w  w w  . j  a v  a 2 s  .co  m

    return all;
}

From source file:com.sm.store.client.RemoteClientImpl.java

@Override
public int getSeqNoBlockInt(Key key, int block) {
    StoreParas paras = getSequence(OpType.GetSeqNoBlockInt, key, block);
    ByteBuffer buf = ByteBuffer.wrap((byte[]) paras.getValue().getData());
    return buf.getInt();
}

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

/**
 * @param bbuf/*from  w  w  w .  j av  a  2 s. co m*/
 * @throws UnsupportedEncodingException
 * @throws UnknownHostException
 */
public AcceptReplyPacket(ByteBuffer bbuf) throws UnsupportedEncodingException, UnknownHostException {
    super(bbuf);
    int paxosIDLength = this.getPaxosID().getBytes(CHARSET).length;
    assert (bbuf.position() == SIZEOF_PAXOSPACKET_FIXED + paxosIDLength);
    this.acceptor = bbuf.getInt();
    this.ballot = new Ballot(bbuf.getInt(), bbuf.getInt());
    this.slotNumber = bbuf.getInt();
    this.maxCheckpointedSlot = bbuf.getInt();
    this.requestID = bbuf.getLong();
    if (bbuf.get() == (byte) 1)
        this.setDigestRequest();
    assert (bbuf.position() == SIZEOF_PAXOSPACKET_FIXED + paxosIDLength + SIZEOF_ACCEPTREPLY) : bbuf.position()
            + " != [" + SIZEOF_PAXOSPACKET_FIXED + " + " + paxosIDLength + " + " + SIZEOF_ACCEPTREPLY + "]";
}

From source file:xbird.storage.io.RemoteVarSegments.java

private byte[] recvResponse(final ByteChannel channel, final ByteBuffer rcvBuf) throws IOException {
    ByteBuffer tmpBuf = ByteBuffer.allocate(4);
    NIOUtils.readFully(channel, tmpBuf, 4);
    tmpBuf.flip();//  www .j av  a  2 s  .c  om
    int datalen = tmpBuf.getInt();

    final ByteBuffer buf = truncateBuffer(rcvBuf, datalen);
    NIOUtils.readFully(channel, buf, datalen);
    buf.flip();
    if (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) {
        buf.order(ByteOrder.BIG_ENDIAN);
    }
    final byte[] b = new byte[datalen];
    buf.get(b);
    if (buf != rcvBuf) {
        _rbufPool.returnObject(buf);
    }
    return b;
}

From source file:net.jenet.Connect.java

@Override
public void fromBuffer(ByteBuffer buffer) {
    super.fromBuffer(buffer);
    outgoingPeerID = buffer.getShort();//from  www .  j a va 2s  .  c o m
    mtu = buffer.getShort();
    windowSize = buffer.getInt();
    channelCount = buffer.getInt();
    incomingBandwidth = buffer.getInt();
    outgoingBandwidth = buffer.getInt();
    packetThrottleInterval = buffer.getInt();
    packetThrottleAcceleration = buffer.getInt();
    packetThrottleDeceleration = buffer.getInt();
}

From source file:voldemort.store.cachestore.voldeimpl.StoreIterator.java

private boolean checkSignature(FileChannel channel) throws IOException {
    ByteBuffer intBytes = ByteBuffer.allocate(OFFSET);
    if (channel.size() == 0) {
        throw new StoreException("File size is 0");
    } else {//  w ww  . ja  va2 s. c o m
        channel.read(intBytes);
        intBytes.rewind();
        if (intBytes.getInt() != MAGIC)
            throw new StoreException("Header mismatch expect " + MAGIC + " read " + intBytes.getInt());
    }
    return true;
}

From source file:shardableobjectids.ShardableObjectId.java

public ShardableObjectId(byte[] b) {
    if (b.length != 12)
        throw new IllegalArgumentException("need 12 bytes");
    ByteBuffer bb = ByteBuffer.wrap(b);
    _machine = bb.getInt();
    _time = bb.getInt();//from w w  w  .j a va 2s. c o  m
    _inc = bb.getInt();
    _new = false;
}