Example usage for java.nio ByteBuffer put

List of usage examples for java.nio ByteBuffer put

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Introduction

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

Prototype

public ByteBuffer put(byte[] src, int off, int len)

Source Link

Document

Writes bytes in the given byte array, starting from the specified offset, to the current position and increases the position by the number of bytes written.

Usage

From source file:eu.europa.esig.dss.DSSUtils.java

public static long toLong(final byte[] bytes) {
    // Long.valueOf(new String(bytes)).longValue();
    ByteBuffer buffer = ByteBuffer.allocate(8);
    buffer.put(bytes, 0, Long.SIZE / 8);
    // TODO: (Bob: 2014 Jan 22) To be checked if it is not platform dependent?
    buffer.flip();//need flip
    return buffer.getLong();
}

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

/**
 * Generate Global ID according to RFC 4193 Section 3.2.2.
 *
 * @param timeStamp/*from  w ww . j av  a 2 s.c  o 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.openteach.diamond.network.waverider.network.Packet.java

/**
 * ??Packet, ??/*from www  .  ja v a  2  s  . co m*/
 * @param inputBuffer
 * @return
 * @throws IOException, InterruptedException
 */
public static Packet parse(BlockingQueue<ByteBuffer> inputBuffer, NetWorkEndPoint endPoint,
        SocketChannel channel) throws IOException, InterruptedException {
    // Buffer for packet header
    byte[] tmpBuf = new byte[NetWorkConstants.DEFAULT_NETWORK_BUFFER_SIZE];
    ByteBuffer header = ByteBuffer.allocate(Packet.getHeaderSize());
    ByteBuffer currentBuffer = null;
    int rest = 0;
    boolean isRemove = false;

    // ?
    while (true) {
        while ((currentBuffer = inputBuffer.peek()) == null) {
            if (!endPoint.notifyRead(channel)) {
                throw new IOException("Socket closed by other thread");
            }
            // ?
            //endPoint.waitMoreData(5);
            // FIXME 2ms
            //Thread.sleep(1);
            Thread.yield();
        }
        isRemove = false;
        rest = header.capacity() - header.position();
        if (currentBuffer.remaining() >= rest) {
            if (currentBuffer.remaining() == rest) {
                isRemove = true;
            }
            currentBuffer.get(tmpBuf, 0, rest);
            header.put(tmpBuf, 0, rest);
            if (isRemove) {
                inputBuffer.remove();
            }
            break;
        } else {
            header.put(currentBuffer);
            inputBuffer.remove();
        }
    }

    header.flip();

    // , ???

    // ?
    Integer size = header.getInt(Packet.getLengthPosition());
    // For test
    /*if(size < 0 || size > 100000) {
       logger.info("Error");
    }*/
    //logger.debug(new StringBuilder("Try to allocate ").append(size).append(" bytes memory"));
    ByteBuffer buffer = ByteBuffer.allocate(size);
    buffer.put(header);
    header.clear();

    // ?
    while (true) {
        while ((currentBuffer = inputBuffer.peek()) == null) {
            endPoint.notifyRead(channel);
            Thread.sleep(1000);
        }
        isRemove = false;
        rest = buffer.capacity() - buffer.position();
        if (currentBuffer.remaining() >= rest) {
            if (currentBuffer.remaining() == rest) {
                isRemove = true;
            }
            currentBuffer.get(tmpBuf, 0, rest);
            buffer.put(tmpBuf, 0, rest);
            if (isRemove) {
                inputBuffer.remove();
            }
            break;
        } else {
            buffer.put(currentBuffer);
            inputBuffer.remove();
        }
    }
    //buffer.position(0);
    buffer.flip();
    Packet packet = Packet.unmarshall(buffer);
    //logger.info("Parse one packet from network");
    //packet.dump();
    return packet;
}

From source file:cn.ac.ncic.mastiff.io.coding.RedBlackTreeStringReader.java

@Override
public byte[] ensureDecompressed() throws IOException {
    DataOutputBuffer transfer = new DataOutputBuffer();
    transfer.write(inBuf.getData(), 12, inBuf.getLength() - 12);
    DataInputBuffer dib = new DataInputBuffer();
    dib.reset(transfer.getData(), 0, transfer.getLength());
    int dictionarySize = dib.readInt();
    int length1 = dib.readInt();
    byte[] data = transfer.getData();
    transfer.close();/*from  w  ww.j  a  va 2 s.  com*/
    dib.reset(data, Integer.SIZE + Integer.SIZE, length1);
    FlexibleEncoding.ORC.StreamName name = new FlexibleEncoding.ORC.StreamName(0,
            OrcProto.Stream.Kind.DICTIONARY_DATA);
    ByteBuffer inBuf1 = ByteBuffer.allocate(length1);
    inBuf1.put(dib.getData(), 0, dib.getLength());
    inBuf1.flip();
    InStream in = InStream.create("test1", inBuf1, null, dictionarySize);
    if (in.available() > 0) {
        dictionaryBuffer = new DynamicByteArray(64, in.available());
        dictionaryBuffer.readAll(in);
        in.close();
        // read the lengths    google  proto buffer
        name = new StreamName(1, OrcProto.Stream.Kind.LENGTH);
        dib.reset(data, 4 + 4 + length1, 4);
        int length2 = dib.readInt();
        dib.reset(data, 4 + 4 + length1 + 4, length2);
        //  in = streams.get(name);
        ByteBuffer inBuf2 = ByteBuffer.allocate(length2);
        inBuf2.put(dib.getData(), 0, length2);
        inBuf2.flip();
        in = InStream.create("test2", inBuf2, null, dictionarySize);
        //    IntegerReader lenReader = createIntegerReader(encodings.get(columnId)
        //        .getKind(), in, false);
        IntegerReader lenReader = createIntegerReader(OrcProto.ColumnEncoding.Kind.DIRECT_V2, in, false);
        int offset = 0;
        dictionaryOffsets = new int[dictionarySize + 1];
        for (int i = 0; i < dictionarySize; ++i) {
            dictionaryOffsets[i] = offset;
            offset += (int) lenReader.next();
        }
        dictionaryOffsets[dictionarySize] = offset;
        in.close();
        name = new FlexibleEncoding.ORC.StreamName(2, OrcProto.Stream.Kind.DATA);
        dib.reset(data, 4 + 4 + length1 + 4 + length2, 4);
        int length3 = dib.readInt();
        dib.reset(data, 4 + 4 + length1 + 4 + length2 + 4, length3);
        ByteBuffer inBuf3 = ByteBuffer.allocate(length3);
        inBuf3.put(dib.getData(), 0, length3);
        inBuf3.flip();
        in = InStream.create("test3", inBuf3, null, dictionarySize);
        reader = createIntegerReader(OrcProto.ColumnEncoding.Kind.DIRECT_V2, in, false);
    }
    inBuf.close();
    DataOutputBuffer decoding = new DataOutputBuffer();
    DataOutputBuffer offsets = new DataOutputBuffer();
    decoding.writeInt(decompressedSize);
    decoding.writeInt(numPairs);
    decoding.writeInt(startPos);
    int dataoffset = 12;
    String str;
    for (int i = 0; i < numPairs; i++) {
        str = readEachValue(null);
        decoding.writeUTF(str);
        //      if(i<5){
        //        System.out.println("304  bin[i]  "+str+"  decoding    "+ decoding.size());
        //      }
        dataoffset = decoding.size();
        offsets.writeInt(dataoffset);
    }
    System.out.println("315  offset.size() " + offsets.size() + "  decoding.szie   " + decoding.size());
    System.out.println("316  dataoffet   " + dataoffset);
    decoding.write(offsets.getData(), 0, offsets.size());
    inBuf.close();
    offsets.close();
    dib.close();
    System.out.println("316   decoding   " + decoding.size() + decoding.getLength() + " decoding.getData()   "
            + decoding.getData().length);
    inBuf1.clear();
    return decoding.getData();
}

From source file:com.intel.chimera.stream.AbstractCryptoStreamTest.java

private void doByteBufferWrite(String cipherClass, ByteArrayOutputStream baos, boolean withChannel)
        throws Exception {
    baos.reset();/*from  w  ww  . j  a  v  a  2  s  . com*/
    CryptoOutputStream out = getCryptoOutputStream(baos, getCipher(cipherClass), defaultBufferSize, iv,
            withChannel);
    ByteBuffer buf = ByteBuffer.allocateDirect(dataLen / 2);
    buf.put(data, 0, dataLen / 2);
    buf.flip();
    int n1 = out.write(buf);

    buf.clear();
    buf.put(data, n1, dataLen / 3);
    buf.flip();
    int n2 = out.write(buf);

    buf.clear();
    buf.put(data, n1 + n2, dataLen - n1 - n2);
    buf.flip();
    int n3 = out.write(buf);

    Assert.assertEquals(dataLen, n1 + n2 + n3);

    out.flush();

    InputStream in = getCryptoInputStream(new ByteArrayInputStream(encData), getCipher(cipherClass),
            defaultBufferSize, iv, withChannel);
    buf = ByteBuffer.allocate(dataLen + 100);
    byteBufferReadCheck(in, buf, 0);
    in.close();
}

From source file:de.hpi.fgis.hdrs.Triple.java

public static void writeTripleData(ByteBuffer out, Triple t) {
    if (0 < t.getSubjectLength())
        out.put(t.getBuffer(), t.getOffset(), t.getSubjectLength());
    if (0 < t.getPredicateLength())
        out.put(t.getBuffer(), t.getPredicateOffset(), t.getPredicateLength());
    if (0 < t.getObjectLength())
        out.put(t.getBuffer(), t.getObjectOffset(), t.getObjectLength());
}

From source file:com.rs.worldserver.io.IOClient.java

private void directFlushOutStream() throws java.io.IOException {
    ByteBuffer buf = ByteBuffer.allocate(outStream.currentOffset);
    buf.put(outStream.buffer, 0, outStream.currentOffset);
    buf.flip();/*from   www .  j  av a  2s. co  m*/
    Server.getIoThread().writeReq(Server.getIoThread().socketFor(this), buf);
    try {
    } catch (Exception e) {
        e.printStackTrace();
    }
    outStream.currentOffset = 0; // reset
}

From source file:guru.benson.pinch.Pinch.java

/**
 * Get a {@link java.net.HttpURLConnection} that has its {@link java.io.InputStream} pointing at
 * the file data of the given {@link guru.benson.pinch.ExtendedZipEntry}.
 *
 * @throws IOException//from w  w w .j a v a  2s  . co m
 */
private HttpURLConnection getEntryInputStream(ExtendedZipEntry entry) throws IOException {
    HttpURLConnection conn;
    InputStream is;

    // Define the local header range
    long start = entry.getOffset();
    long end = start + ZipConstants.LOCHDR;

    conn = openConnection();
    conn.setRequestProperty("Range", "bytes=" + start + "-" + end);
    conn.setInstanceFollowRedirects(true);
    conn.connect();

    int responseCode = conn.getResponseCode();
    if (responseCode != HttpURLConnection.HTTP_PARTIAL) {
        throw new IOException("Unexpected HTTP server response: " + responseCode);
    }

    byte[] dataBuffer = new byte[2048];
    int read, bytes = 0;

    is = conn.getInputStream();
    while ((read = is.read(dataBuffer)) != -1) {
        bytes += read;
    }
    close(is);
    disconnect(conn);
    if (bytes < ZipConstants.LOCHDR) {
        throw new IOException("Unable to fetch the local header");
    }

    ByteBuffer buffer = ByteBuffer.allocate(ZipConstants.LOCHDR);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    buffer.put(dataBuffer, 0, ZipConstants.LOCHDR);

    final int headerSignature = buffer.getInt(0);
    if (headerSignature != 0x04034b50) {
        disconnect(conn);
        throw new IOException("Local file header signature mismatch");
    }

    final int localCompressedSize = buffer.getInt(ZipConstants.LOCSIZ);
    final short localFileNameLength = buffer.getShort(ZipConstants.LOCNAM);
    final short localExtraLength = buffer.getShort(ZipConstants.LOCEXT);

    // Define the local file range
    start = entry.getOffset() + ZipConstants.LOCHDR + localFileNameLength + localExtraLength;
    end = start + localCompressedSize;

    // Open a new one with
    conn = openConnection();
    conn.setRequestProperty("Range", "bytes=" + start + "-" + end);
    conn.setInstanceFollowRedirects(true);
    conn.connect();

    responseCode = conn.getResponseCode();
    if (responseCode != HttpURLConnection.HTTP_PARTIAL) {
        disconnect(conn);
        close(is);
        throw new IOException("Unexpected HTTP server response: " + responseCode);
    }

    return conn;
}

From source file:edu.uci.ics.hyracks.dataflow.std.sort.util.DeletableFrameTupleAppenderTest.java

ByteBuffer makeAFrame(int capacity, int count, int deletedBytes) throws HyracksDataException {
    ByteBuffer buffer = ByteBuffer.allocate(capacity);
    int metaOffset = capacity - 4;
    buffer.putInt(metaOffset, deletedBytes);
    metaOffset -= 4;/*from  w w w .j  a  v a 2  s  .  c om*/
    buffer.putInt(metaOffset, count);
    metaOffset -= 4;
    for (int i = 0; i < count; i++, metaOffset -= 4) {
        makeARecord(builder, i);
        for (int x = 0; x < builder.getFieldEndOffsets().length; x++) {
            buffer.putInt(builder.getFieldEndOffsets()[x]);
        }
        buffer.put(builder.getByteArray(), 0, builder.getSize());
        assert (metaOffset > buffer.position());
        buffer.putInt(metaOffset, buffer.position());

    }
    return buffer;
}

From source file:de.hpi.fgis.hdrs.Triple.java

public static void writeTriple(ByteBuffer buffer, Triple t) {
    buffer.putShort(t.getSubjectLength());
    buffer.putShort(t.getPredicateLength());
    buffer.putInt(t.getObjectLength());//from w  w  w . j  a v a 2 s .  c o m
    buffer.putInt(t.getMultiplicity());
    if (0 < t.getSubjectLength())
        buffer.put(t.getBuffer(), t.getOffset(), t.getSubjectLength());
    if (0 < t.getPredicateLength())
        buffer.put(t.getBuffer(), t.getPredicateOffset(), t.getPredicateLength());
    if (0 < t.getObjectLength())
        buffer.put(t.getBuffer(), t.getObjectOffset(), t.getObjectLength());
}