Example usage for java.nio ByteBuffer remaining

Introduction

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

Prototype

public final int remaining() 

Source Link

Document

Returns the number of remaining elements in this buffer, that is limit - position .

Usage

From source file:org.apache.cassandra.db.marshal.UUIDType.java

public int compare(ByteBuffer b1, ByteBuffer b2) {

    // Compare for length

    if ((b1 == null) || (b1.remaining() < 16)) {
        return ((b2 == null) || (b2.remaining() < 16)) ? 0 : -1;
    }// w  ww .  j  a v  a  2s  .  c om
    if ((b2 == null) || (b2.remaining() < 16)) {
        return 1;
    }

    int s1 = b1.position();
    int s2 = b2.position();

    // Compare versions

    int v1 = (b1.get(s1 + 6) >> 4) & 0x0f;
    int v2 = (b2.get(s2 + 6) >> 4) & 0x0f;

    if (v1 != v2) {
        return v1 - v2;
    }

    // Compare timestamps for version 1

    if (v1 == 1) {
        // if both time-based, compare as timestamps
        int c = compareTimestampBytes(b1, b2);
        if (c != 0) {
            return c;
        }
    }

    // Compare the two byte arrays starting from the first
    // byte in the sequence until an inequality is
    // found. This should provide equivalent results
    // to the comparison performed by the RFC 4122
    // Appendix A - Sample Implementation.
    // Note: java.util.UUID.compareTo is not a lexical
    // comparison
    for (int i = 0; i < 16; i++) {
        int c = ((b1.get(s1 + i)) & 0xFF) - ((b2.get(s2 + i)) & 0xFF);
        if (c != 0) {
            return c;
        }
    }

    return 0;
}

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From source file:com.github.cambierr.lorawanpacket.semtech.PushData.java

public PushData(byte[] _randoms, ByteBuffer _raw) throws MalformedPacketException {
    super(_randoms, PacketType.PUSH_DATA);
    _raw.order(ByteOrder.LITTLE_ENDIAN);

    if (_raw.remaining() < 8) {
        throw new MalformedPacketException("too short");
    }/*from w w w.j a v  a2s.c  o  m*/

    gatewayEui = new byte[8];
    _raw.get(gatewayEui);

    byte[] json = new byte[_raw.remaining()];
    _raw.get(json);
    JSONObject jo;

    try {
        jo = new JSONObject(new String(json));
    } catch (JSONException ex) {
        throw new MalformedPacketException("malformed json");
    }

    stats = new ArrayList<>();
    rxpks = new ArrayList<>();

    if (jo.has("rxpk")) {
        if (!jo.get("rxpk").getClass().equals(JSONArray.class)) {
            throw new MalformedPacketException("malformed json (rxpk)");
        }
        JSONArray rxpk = jo.getJSONArray("rxpk");

        for (int i = 0; i < rxpk.length(); i++) {
            rxpks.add(new Rxpk(rxpk.getJSONObject(i)));
        }
    }

    if (jo.has("stat")) {
        if (!jo.get("stat").getClass().equals(JSONArray.class)) {
            throw new MalformedPacketException("malformed json (stat)");
        }
        JSONArray stat = jo.getJSONArray("stat");

        for (int i = 0; i < stat.length(); i++) {
            stats.add(new Stat(stat.getJSONObject(i)));
        }
    }

}

---

From source file:byps.test.servlet.MyRemoteStreams.java

@Override
public TreeMap<Integer, InputStream> getImages() throws RemoteException {
    if (log.isDebugEnabled())
        log.debug("getImages(");
    Map<Integer, ByteBuffer> mapStreamBytes = this.mapStreamBytes;
    if (mapStreamBytes == null)
        return null;
    TreeMap<Integer, InputStream> map = new TreeMap<Integer, InputStream>();
    for (Integer k : mapStreamBytes.keySet()) {
        ByteBuffer buf = mapStreamBytes.get(k);
        InputStream istrm = new ByteArrayInputStream(buf.array(), buf.position(), buf.remaining());
        map.put(k, istrm);/*from w  w w  .j av a  2  s  .c o  m*/
    }
    if (log.isDebugEnabled())
        log.debug(")getImages=" + map);
    return map;
}

---

From source file:gridool.communication.transport.tcp.GridSocketPoolingClient.java

public void sendMessage(SocketAddress sockAddr, GridCommunicationMessage msg) throws GridException {
    final ByteBuffer buf = toBuffer(msg);
    final ByteChannel channel = sockPool.borrowObject(sockAddr);
    if (LOG.isDebugEnabled()) {
        LOG.debug("Sending a message [" + msg.getMessageId() + " (" + buf.remaining() + " bytes)] to a node ["
                + sockAddr + "] using a channel [" + channel + ']');
    }//from  w w  w .  j  a va  2 s  .  com
    final int written;
    try {
        written = NIOUtils.countingWriteFully(channel, buf);
        sockPool.returnObject(sockAddr, channel);
    } catch (IOException ioe) {
        IOUtils.closeQuietly(channel);
        final String errmsg = "Failed to send a GridCommunicationMessage [" + msg + "] to host [" + sockAddr
                + ']';
        LOG.error(errmsg, ioe);
        throw new GridException(errmsg, ioe);
    } catch (Throwable e) {
        IOUtils.closeQuietly(channel);
        LOG.fatal(e.getMessage(), e);
        throw new GridException("Unexpected exception was caused", e);
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Succeeded to send a GridCommunicationMessage (" + written + " bytes) to host [" + sockAddr
                + "]");
    }
}

---

From source file:com.navercorp.pinpoint.common.server.bo.serializer.trace.v1.SpanBoTest.java

@Test
public void serialize2_V1() {
    SpanBo spanBo = new SpanBo();
    spanBo.setAgentId("agent");
    String service = createString(5);
    spanBo.setApplicationId(service);// w  w  w . j a va2s  .  c o  m
    String endPoint = createString(127);
    spanBo.setEndPoint(endPoint);
    String rpc = createString(255);
    spanBo.setRpc(rpc);

    spanBo.setServiceType(ServiceType.STAND_ALONE.getCode());
    spanBo.setApplicationServiceType(ServiceType.UNKNOWN.getCode());

    final ByteBuffer bytes = spanSerializer.writeColumnValue(spanBo);

    SpanBo newSpanBo = new SpanBo();
    Buffer valueBuffer = new OffsetFixedBuffer(bytes.array(), bytes.arrayOffset(), bytes.remaining());
    int i = spanDecoder.readSpan(newSpanBo, valueBuffer);
    logger.debug("length:{}", i);
    Assert.assertEquals(bytes.limit(), i);

    Assert.assertEquals(spanBo.getServiceType(), spanBo.getServiceType());
    Assert.assertEquals(spanBo.getApplicationServiceType(), spanBo.getApplicationServiceType());
}

---

From source file:com.taobao.common.tfs.comm.TfsClient.java

public void invokeAsync(final BasePacket packet, final long timeout, ResponseListener listener) {
    if (isDebugEnabled) {
        log.debug("send request [" + packet.getChid() + "] async,time is:" + System.currentTimeMillis());
    }//ww  w .  jav a  2 s  . c  o  m

    if (minTimeout > timeout) {
        minTimeout = timeout;
    }

    final ResponseCallbackTask callbackTask = new ResponseCallbackTask(packet.getSeqId(), listener, timeout);
    callbackTasks.put(packet.getChid(), callbackTask);

    ByteBuffer bb = packet.getByteBuffer();
    bb.flip();
    byte[] data = new byte[bb.remaining()];
    bb.get(data);
    WriteFuture writeFuture = session.write(data);
    writeFuture.addListener(new IoFutureListener() {

        public void operationComplete(IoFuture future) {
            WriteFuture wfuture = (WriteFuture) future;
            if (wfuture.isWritten()) {
                return;
            }
            String error = "send message to tfs server error [" + packet.getChid() + "], tfs server: "
                    + session.getRemoteAddress() + ", maybe because this connection closed: "
                    + !session.isConnected();
            callbackTask.setResponse(new TfsException(error));

            // close this session
            if (session.isConnected()) {
                session.close();
            } else {
                TfsClientFactory.getInstance().removeClient(key);
            }
        }

    });
}

---

From source file:org.apache.cassandra.dht.AbstractByteOrderedPartitioner.java

/**
 * Convert a byte array containing the most significant of 'sigbytes' bytes
 * representing a big-endian magnitude into a BigInteger.
 *//*from w  ww .  j av a  2s  .c  o m*/
private BigInteger bigForBytes(ByteBuffer bytes, int sigbytes) {
    byte[] b = new byte[sigbytes];
    Arrays.fill(b, (byte) 0); // append zeros
    ByteBufferUtil.arrayCopy(bytes, bytes.position(), b, 0, bytes.remaining());
    return new BigInteger(1, b);
}

---

From source file:org.apache.james.protocols.smtp.core.DataLineMessageHookHandler.java

private byte[] readBytes(ByteBuffer line) {
    line.rewind();/* w w  w.  j  a  v a  2  s  . c o m*/
    byte[] bline;
    if (line.hasArray()) {
        bline = line.array();
    } else {
        bline = new byte[line.remaining()];
        line.get(bline);
    }
    return bline;
}

---

From source file:com.taobao.tair.comm.TairClient.java

public void invokeAsync(final BasePacket packet, final long timeout, ResponseListener listener) {
    if (isDebugEnabled) {
        LOGGER.debug("send request [" + packet.getChid() + "] async,time is:" + System.currentTimeMillis());
    }/* w  w  w  . ja  v  a  2s .  c o m*/
    if (minTimeout > timeout) {
        minTimeout = timeout;
    }
    final ResponseCallbackTask callbackTask = new ResponseCallbackTask(packet.getChid(), listener, this.session,
            timeout);
    callbackTasks.put(packet.getChid(), callbackTask);

    ByteBuffer bb = packet.getByteBuffer();
    bb.flip();
    byte[] data = new byte[bb.remaining()];
    bb.get(data);
    WriteFuture writeFuture = session.write(data);
    writeFuture.addListener(new IoFutureListener() {

        public void operationComplete(IoFuture future) {
            WriteFuture wfuture = (WriteFuture) future;
            if (wfuture.isWritten()) {
                return;
            }
            String error = "send message to tair server error [" + packet.getChid() + "], tair server: "
                    + session.getRemoteAddress() + ", maybe because this connection closed :"
                    + !session.isConnected();
            LOGGER.warn(error);
            callbackTask.setResponse(new TairClientException(error));

            // close this session
            if (session.isConnected())
                session.close();
            else
                clientFactory.removeClient(key);
        }

    });
}

---

From source file:org.apache.maven.plugin.surefire.report.Utf8RecodingDeferredFileOutputStream.java

public synchronized void write(byte[] buf, int off, int len) throws IOException {
    if (closed) {
        return;//from   w  w  w.  j  a  va 2s .  co m
    }

    if (!Charset.defaultCharset().equals(UTF8)) {
        CharBuffer decodedFromDefaultCharset = Charset.defaultCharset().decode(ByteBuffer.wrap(buf, off, len));
        ByteBuffer utf8Encoded = UTF8.encode(decodedFromDefaultCharset);

        if (utf8Encoded.hasArray()) {
            byte[] convertedBytes = utf8Encoded.array();

            deferredFileOutputStream.write(convertedBytes, utf8Encoded.position(), utf8Encoded.remaining());
        } else {
            byte[] convertedBytes = new byte[utf8Encoded.remaining()];
            utf8Encoded.get(convertedBytes, 0, utf8Encoded.remaining());

            deferredFileOutputStream.write(convertedBytes, 0, convertedBytes.length);
        }
    } else {
        deferredFileOutputStream.write(buf, off, len);
    }
}

---

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