Example usage for java.nio ByteBuffer slice

Introduction

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

Prototype

public abstract ByteBuffer slice();

Source Link

Document

Returns a sliced buffer that shares its content with this buffer.

Usage

From source file:org.wso2.andes.amqp.AMQPUtils.java

/**
 * convert an AMQMessage to andes metadata
 *
 * @param amqMessage qpid amqMessage// w  w w.j a  v  a  2 s  .c  o m
 * @return andes message metadata
 * @throws AndesException
 */
public static AndesMessageMetadata convertAMQMessageToAndesMetadata(AMQMessage amqMessage) {
    MessageMetaData amqMetadata = amqMessage.getMessageMetaData();
    String queue = amqMetadata.getMessagePublishInfo().getRoutingKey().toString();

    final int bodySize = 1 + amqMetadata.getStorableSize();
    byte[] underlying = new byte[bodySize];
    underlying[0] = (byte) amqMetadata.getType().ordinal();
    java.nio.ByteBuffer buf = java.nio.ByteBuffer.wrap(underlying);
    buf.position(1);
    buf = buf.slice();
    amqMetadata.writeToBuffer(0, buf);
    AndesMessageMetadata metadata = new AndesMessageMetadata(amqMessage.getMessageId(), underlying, true);
    metadata.setArrivalTime(amqMessage.getArrivalTime());
    metadata.setMessageContentLength(amqMetadata.getContentSize());

    return metadata;
}

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

/**
 * ByteBuffer??/*from w  w w. j  a  v a2 s  .  c o m*/
 * @param buffer
 * @return
 */
public static Command unmarshall(ByteBuffer buffer) {
    if (buffer.remaining() < getHeaderSize()) {
        throw new RuntimeException("Wrong command.");
    }
    Command command = new Command();
    command.setType(buffer.getLong());
    command.setLength(buffer.getInt());
    // (payLoad)array()
    command.setPayLoad(buffer.slice());
    return command;
}

From source file:Main.java

/**
 * Relative <em>get</em> method for reading {@code size} number of bytes from the current
 * position of this buffer.// w  w  w.  j a  v a  2 s. com
 * <p>
 * <p>This method reads the next {@code size} bytes at this buffer's current position,
 * returning them as a {@code ByteBuffer} with start set to 0, limit and capacity set to
 * {@code size}, byte order set to this buffer's byte order; and then increments the position by
 * {@code size}.
 */
private static ByteBuffer getByteBuffer(final ByteBuffer source, final int size)
        throws BufferUnderflowException {
    if (size < 0) {
        throw new IllegalArgumentException("size: " + size);
    }
    final int originalLimit = source.limit();
    final int position = source.position();
    final int limit = position + size;
    if ((limit < position) || (limit > originalLimit)) {
        throw new BufferUnderflowException();
    }
    source.limit(limit);
    try {
        final ByteBuffer result = source.slice();
        result.order(source.order());
        source.position(limit);
        return result;
    } finally {
        source.limit(originalLimit);
    }
}

From source file:org.apache.usergrid.persistence.map.impl.MapSerializationImpl.java

private static Object deserializeMapEntryKey(ByteBuffer bb) {

    List<Object> stuff = new ArrayList<>();
    while (bb.hasRemaining()) {
        ByteBuffer data = CQLUtils.getWithShortLength(bb);
        if (stuff.size() == 0) {
            stuff.add(DataType.uuid().deserialize(data.slice(), ProtocolVersion.NEWEST_SUPPORTED));
        } else {/* w w w. ja  v a  2 s .  co  m*/
            stuff.add(DataType.text().deserialize(data.slice(), ProtocolVersion.NEWEST_SUPPORTED));
        }
        byte equality = bb.get(); // we don't use this but take the equality byte off the buffer

    }

    return stuff;

}

From source file:org.xenei.bloomgraph.bloom.sql.DBIO.java

/**
 * Convert the byte buffer to a input stream.
 * /* ww  w  .  j a  v a 2 s  .c  om*/
 * @param buffer
 *            the buffer to conver
 * @return the input stream.
 */
public static InputStream asInputStream(final ByteBuffer buffer) {
    final ByteBuffer buff = buffer.slice().order(ByteOrder.LITTLE_ENDIAN);
    if (buff.hasArray()) {
        // use heap buffer; no array is created; only the reference is used
        return new ByteArrayInputStream(buff.array());
    }
    return new ByteBufferInputStream(buff);
}

From source file:com.googlecode.mp4parser.boxes.microsoft.XtraBox.java

private static void dumpByteBuffer(ByteBuffer input)
        throws ArrayIndexOutOfBoundsException, IllegalArgumentException, IOException {
    input = input.slice();
    byte bytes[] = new byte[input.remaining()];
    input.get(bytes);/* ww  w .  j  ava2 s. co  m*/
    HexDump.dump(bytes, 0, System.out, 0);
}

From source file:com.easemob.dataexport.utils.ConversionUtils.java

public static boolean getBoolean(ByteBuffer bytes) {
    return bytes.slice().get() != 0;
}

From source file:com.easemob.dataexport.utils.ConversionUtils.java

public static long getLong(ByteBuffer bytes) {
    return bytes.slice().getLong();
}

From source file:com.easemob.dataexport.utils.ConversionUtils.java

public static int getInt(ByteBuffer bytes) {
    return bytes.slice().getInt();
}

From source file:com.easemob.dataexport.utils.ConversionUtils.java

public static float getFloat(ByteBuffer bytes) {
    return bytes.slice().getFloat();
}