Example usage for io.netty.buffer Unpooled EMPTY

Introduction

In this page you can find the example usage for io.netty.buffer Unpooled EMPTY_BUFFER.

Prototype

ByteBuf EMPTY_BUFFER

To view the source code for io.netty.buffer Unpooled EMPTY_BUFFER.

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Document

A buffer whose capacity is 0 .

Usage

From source file:org.waarp.openr66.protocol.localhandler.packet.DataPacket.java

License:Open Source License

/**
 * @param headerLength//from w w w  .j a v a2s  . c  om
 * @param middleLength
 * @param endLength
 * @param buf
 * @return the new DataPacket from buffer
 * @throws OpenR66ProtocolPacketException
 */
public static DataPacket createFromBuffer(int headerLength, int middleLength, int endLength, ByteBuf buf)
        throws OpenR66ProtocolPacketException {
    if (headerLength - 1 <= 0) {
        throw new OpenR66ProtocolPacketException("Not enough data");
    }
    if (middleLength <= 0) {
        throw new OpenR66ProtocolPacketException("Not enough data");
    }
    int packetRank = buf.readInt();
    ByteBuf data = buf.readSlice(middleLength);
    data.retain();
    ByteBuf key;
    if (endLength > 0) {
        key = buf.readSlice(endLength);
        key.retain();
    } else {
        key = Unpooled.EMPTY_BUFFER;
    }
    return new DataPacket(packetRank, data, key);
}

From source file:org.waarp.openr66.protocol.localhandler.packet.DataPacket.java

License:Open Source License

/**
 * @param packetRank//from   w ww.  ja va 2s .  c o m
 * @param data
 * @param key
 */
public DataPacket(int packetRank, ByteBuf data, ByteBuf key) {
    this.packetRank = packetRank;
    this.data = data;
    this.key = key == null ? Unpooled.EMPTY_BUFFER : key;
    lengthPacket = data.readableBytes();
}

From source file:org.waarp.openr66.protocol.localhandler.packet.DataPacket.java

License:Open Source License

/**
 * //from  www .j  a  v  a 2  s. c o  m
 * @return True if the Hashed key is valid (or no key is set)
 */
public boolean isKeyValid(DigestAlgo algo) {
    if (key == null || key == Unpooled.EMPTY_BUFFER) {
        return true;
    }
    ByteBuf newbufkey = FileUtils.getHash(data, algo);
    boolean check = key.equals(newbufkey);
    newbufkey.release();
    return check;
}

From source file:org.waarp.openr66.protocol.localhandler.packet.EndRequestPacket.java

License:Open Source License

@Override
public void createEnd(LocalChannelReference lcr) {
    if (optional == null) {
        end = Unpooled.EMPTY_BUFFER;
    } else {//w  w w .  j  a v  a  2s  .c  o m
        end = Unpooled.copiedBuffer(optional, Charset.defaultCharset());
    }
}

From source file:org.waarp.openr66.protocol.localhandler.packet.EndTransferPacket.java

License:Open Source License

@Override
public void createEnd(LocalChannelReference lcr) {
    if (hashOptional == null) {
        end = Unpooled.EMPTY_BUFFER;
    } else {//  www .ja  va2 s .c o  m
        end = Unpooled.copiedBuffer(hashOptional, Charset.defaultCharset());
    }
}

From source file:org.waarp.openr66.protocol.localhandler.packet.KeepAlivePacket.java

License:Open Source License

@Override
public void createEnd(LocalChannelReference lcr) {
    end = Unpooled.EMPTY_BUFFER;
}

From source file:org.waarp.openr66.protocol.localhandler.packet.KeepAlivePacket.java

License:Open Source License

@Override
public void createHeader(LocalChannelReference lcr) {
    header = Unpooled.EMPTY_BUFFER;
}

From source file:org.waarp.openr66.protocol.localhandler.packet.NoOpPacket.java

License:Open Source License

@Override
public void createMiddle(LocalChannelReference lcr) {
    middle = Unpooled.EMPTY_BUFFER;
}

From source file:org.waarp.openr66.protocol.localhandler.packet.ShutdownPacket.java

License:Open Source License

@Override
public void createMiddle(LocalChannelReference lcr) throws OpenR66ProtocolPacketException {
    if (restart != 0) {
        byte[] array = { restart };
        middle = Unpooled.wrappedBuffer(array);
    } else {/*from   w ww.  j  a va2s.co  m*/
        middle = Unpooled.EMPTY_BUFFER;
    }
}

From source file:org.waarp.openr66.protocol.utils.ChannelUtils.java

License:Open Source License

/**
 * //from   ww w  .  j av  a2 s.  c om
 * @param localChannelReference
 * @param block
 * @return the ChannelFuture of this write operation
 * @throws OpenR66ProtocolPacketException
 */
public static ChannelFuture writeBackDataBlock(LocalChannelReference localChannelReference, DataBlock block)
        throws OpenR66ProtocolPacketException {
    ByteBuf md5 = Unpooled.EMPTY_BUFFER;
    DbTaskRunner runner = localChannelReference.getSession().getRunner();
    if (RequestPacket.isMD5Mode(runner.getMode())) {
        md5 = FileUtils.getHash(block.getBlock(), Configuration.configuration.getDigest());
    }
    if (runner.getRank() % 100 == 1 || localChannelReference.getSessionState() != R66FiniteDualStates.DATAS) {
        localChannelReference.sessionNewState(R66FiniteDualStates.DATAS);
    }
    DataPacket data = new DataPacket(runner.getRank(), block.getBlock(), md5);// was block.getBlock().copy()
    ChannelFuture future = writeAbstractLocalPacket(localChannelReference, data, false);
    runner.incrementRank();
    return future;
}

Example usage for io.netty.buffer Unpooled EMPTY_BUFFER

Introduction

Prototype

Document

Usage