Example usage for io.netty.buffer ByteBuf readerIndex

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readerIndex.

Prototype

public abstract int readerIndex();

Source Link

Document

Returns the readerIndex of this buffer.

Usage

From source file:bftsmart.communication.client.netty.NettyTOMMessageDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext context, ByteBuf buffer, List<Object> list) throws Exception {

    // Wait until the length prefix is available.
    if (buffer.readableBytes() < Integer.BYTES) {
        return;//from w  ww . j a  v  a 2  s. c  om
    }

    int dataLength = buffer.getInt(buffer.readerIndex());

    //Logger.println("Receiving message with "+dataLength+" bytes.");

    // Wait until the whole data is available.
    if (buffer.readableBytes() < dataLength + Integer.BYTES) {
        return;
    }

    // Skip the length field because we know it already.
    buffer.skipBytes(Integer.BYTES);

    int size = buffer.readInt();
    byte[] data = new byte[size];
    buffer.readBytes(data);

    byte[] signature = null;
    size = buffer.readInt();

    if (size > 0) {
        signature = new byte[size];
        buffer.readBytes(signature);
    }

    DataInputStream dis = null;
    TOMMessage sm = null;

    try {
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        dis = new DataInputStream(bais);
        sm = new TOMMessage();
        sm.rExternal(dis);
        sm.serializedMessage = data;

        if (signature != null) {
            sm.serializedMessageSignature = signature;
            sm.signed = true;
        }

        if (!isClient) {
            rl.readLock().lock();
            if (!sessionTable.containsKey(sm.getSender())) {
                rl.readLock().unlock();

                NettyClientServerSession cs = new NettyClientServerSession(context.channel(), sm.getSender());

                rl.writeLock().lock();
                sessionTable.put(sm.getSender(), cs);
                logger.debug("Active clients: " + sessionTable.size());
                rl.writeLock().unlock();

            } else {
                rl.readLock().unlock();
            }
        }
        logger.debug("Decoded reply from " + sm.getSender() + " with sequence number " + sm.getSequence());
        list.add(sm);
    } catch (Exception ex) {

        logger.error("Failed to decode TOMMessage", ex);
    }
    return;
}

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From source file:books.netty.protocol.netty.codec.MarshallingDecoder.java

License:Apache License

protected Object decode(ByteBuf in) throws Exception {
    int objectSize = in.readInt();
    ByteBuf buf = in.slice(in.readerIndex(), objectSize);
    ByteInput input = new ChannelBufferByteInput(buf);
    try {/*from w w  w.  j av  a 2s.  co  m*/
        unmarshaller.start(input);
        Object obj = unmarshaller.readObject();
        unmarshaller.finish();
        in.readerIndex(in.readerIndex() + objectSize);
        return obj;
    } finally {
        unmarshaller.close();
    }
}

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From source file:buildcraft.core.network.serializers.SerializerFluidStack.java

License:Minecraft Mod Public

@Override
public Object read(ByteBuf data, Object o, SerializationContext context) {
    if (!data.readBoolean()) {
        return null;
    } else {/*from  w ww. j  a  v a2 s .c  om*/
        int id = data.readShort();
        int amount = data.readerIndex();

        NBTTagCompound nbt = null;

        if (data.readBoolean()) {
            nbt = Utils.readNBT(data);
            return new FluidStack(id, amount, nbt);
        } else {
            return new FluidStack(id, amount);
        }
    }
}

---

From source file:cloudeventbus.codec.Decoder.java

License:Open Source License

/**
 * Returns the number of bytes between the readerIndex of the haystack and
 * the first needle found in the haystack.  -1 is returned if no needle is
 * found in the haystack.//from w  w w.ja v  a2 s  . co  m
 * <p/>
 * Copied from {@link io.netty.handler.codec.DelimiterBasedFrameDecoder}.
 */
private int indexOf(ByteBuf haystack, byte[] needle) {
    for (int i = haystack.readerIndex(); i < haystack.writerIndex(); i++) {
        int haystackIndex = i;
        int needleIndex;
        for (needleIndex = 0; needleIndex < needle.length; needleIndex++) {
            if (haystack.getByte(haystackIndex) != needle[needleIndex]) {
                break;
            } else {
                haystackIndex++;
                if (haystackIndex == haystack.writerIndex() && needleIndex != needle.length - 1) {
                    return -1;
                }
            }
        }

        if (needleIndex == needle.length) {
            // Found the needle from the haystack!
            return i - haystack.readerIndex();
        }
    }
    return -1;
}

---

From source file:cloudfoundry.norouter.f5.dropsonde.LineEventDecoder.java

License:Open Source License

private String nextString(ByteBuf buffer) {
    // Read space terminated string
    final int start = buffer.readerIndex();
    int length = 0;
    while (buffer.readByte() != ' ') {
        length++;//from w w w  .  j a  v a  2  s.c  om
    }
    return buffer.toString(start, length, StandardCharsets.UTF_8);
}

---

From source file:com.addthis.hydra.data.util.KeyTopper.java

License:Apache License

@Override
public void bytesDecode(byte[] b, long version) {
    map = new HashMap<>();
    errors = null;/*from   w w  w.j  a  v  a 2  s .  c  o m*/
    if (b.length == 0) {
        return;
    }
    ByteBuf byteBuf = Unpooled.wrappedBuffer(b);
    try {
        byte marker = byteBuf.getByte(byteBuf.readerIndex());
        if (marker == 0) {
            errors = new HashMap<>();
            // Consume the sentinel byte value
            byteBuf.readByte();
        }
        int mapSize = Varint.readUnsignedVarInt(byteBuf);
        try {
            if (mapSize > 0) {
                for (int i = 0; i < mapSize; i++) {
                    int keyLength = Varint.readUnsignedVarInt(byteBuf);
                    byte[] keybytes = new byte[keyLength];
                    byteBuf.readBytes(keybytes);
                    String k = new String(keybytes, "UTF-8");
                    long value = Varint.readUnsignedVarLong(byteBuf);
                    map.put(k, value);
                    if (hasErrors()) {
                        long error = Varint.readUnsignedVarLong(byteBuf);
                        if (error != 0) {
                            errors.put(k, error);
                        }
                    }
                }
            }
        } catch (Exception e) {
            throw Throwables.propagate(e);
        }
    } finally {
        byteBuf.release();
    }
}

---

From source file:com.alibaba.dubbo.qos.server.handler.QosProcessHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (in.readableBytes() < 1) {
        return;//from  w  w w .ja v  a2 s  . com
    }

    // read one byte to guess protocol
    final int magic = in.getByte(in.readerIndex());

    ChannelPipeline p = ctx.pipeline();
    p.addLast(new LocalHostPermitHandler(acceptForeignIp));
    if (isHttp(magic)) {
        // no welcome output for http protocol
        if (welcomeFuture != null && welcomeFuture.isCancellable()) {
            welcomeFuture.cancel(false);
        }
        p.addLast(new HttpServerCodec());
        p.addLast(new HttpObjectAggregator(1048576));
        p.addLast(new HttpProcessHandler());
        p.remove(this);
    } else {
        p.addLast(new LineBasedFrameDecoder(2048));
        p.addLast(new StringDecoder(CharsetUtil.UTF_8));
        p.addLast(new StringEncoder(CharsetUtil.UTF_8));
        p.addLast(new IdleStateHandler(0, 0, 5 * 60));
        p.addLast(new TelnetProcessHandler());
        p.remove(this);
    }
}

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From source file:com.antsdb.saltedfish.server.mysql.packet.replication.RowsEventV2Packet.java

License:Open Source License

@Override
public void read(MysqlClientHandler handler, ByteBuf in) {
    // header/*  www .j  a va 2s .  c  o  m*/
    int begin = in.readerIndex();

    // 6 bytes tabble id
    tableId = BufferUtils.readPackedInteger(in, 6);
    // 2 bytes flags
    flags = BufferUtils.readInt(in);
    extraDataLen = BufferUtils.readInt(in);

    // body
    // number of columns
    int index = in.readerIndex();
    colCount = (int) BufferUtils.readLength(in);

    int presentCount = (colCount + 7) / 8;
    byte[] presentBits = new byte[presentCount];
    in.readBytes(presentBits);

    colPresentBitmap = BitSet.valueOf(presentBits);

    if (eventType == ReplicationPacket.UPDATE_ROWS_EVENT) {
        byte[] presentUptBits = new byte[presentCount];
        in.readBytes(presentUptBits);
        colPresentBitmapAftImg = BitSet.valueOf(presentUptBits);
    }

    int readCnt = in.readerIndex() - index;

    // eventlength - event_header_length - post_header_length - rest data length
    rawRows = in.readBytes((int) eventlength - 29 - readCnt);

    int end = in.readerIndex();

    if (_log.isTraceEnabled()) {
        in.readerIndex(begin);
        byte[] bytes = new byte[end - begin];
        in.readBytes(bytes);
        String dump = '\n' + UberUtil.hexDump(bytes);
        _log.trace("Packet Info:\n" + this.toString() + "\nRowsEventV2Packet packet:\n" + dump);
    }

}

---

From source file:com.antsdb.saltedfish.server.mysql.packet.replication.TableMapPacket.java

License:Open Source License

@Override
public void read(MysqlClientHandler handler, ByteBuf in) {
    // header//from w ww .  j a v  a 2s . c  o m
    int begin = in.readerIndex();

    tableId = BufferUtils.readPackedInteger(in, 6);
    flags = BufferUtils.readInt(in);

    // payload
    schemaName = BufferUtils.readStringWithLength(in);
    // seperated by 0
    in.readByte();
    tableName = BufferUtils.readStringWithLength(in);
    // seperated by 0
    in.readByte();
    colCount = (int) BufferUtils.readLength(in);
    colTypeDef = BufferUtils.readBytes(in, colCount);

    metaCount = (int) BufferUtils.readLength(in);
    colMetaDef = BufferUtils.readBytes(in, metaCount);

    int nullCount = (colCount + 7) / 8;
    nullBitMap = new byte[nullCount];
    in.readBytes(nullBitMap);

    int end = in.readerIndex();

    if (_log.isTraceEnabled()) {
        in.readerIndex(begin);
        byte[] bytes = new byte[end - begin];
        in.readBytes(bytes);
        String dump = '\n' + UberUtil.hexDump(bytes);
        _log.trace("Packet Info:\n" + this.toString() + "\nTableMapPacket packet:\n" + dump);
    }

}

---

From source file:com.antsdb.saltedfish.server.mysql.PacketDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    // do we have length field in buffer ?

    if (!in.isReadable(4)) {
        return;/*from w ww  .  ja  v a 2 s  .  com*/
    }

    // do we have entire packet in the buffer?

    in.markReaderIndex();
    int size = BufferUtils.readLongInt(in);
    int sequence = in.readByte() & 0xff;
    if (size == 0) {
        out.add(new ShutdownPacket());
        return;
    }
    if (!in.isReadable(size)) {
        in.resetReaderIndex();
        return;
    }

    // is very large packet?

    this.handler.packetSequence = sequence;
    if (size == MAX_PACKET_SIZE) {
        if (this.largePacket == null) {
            this.largePacket = ctx.alloc().directBuffer();
        }
        this.largePacket.writeBytes(in, MAX_PACKET_SIZE);
        return;
    }
    if (this.largePacket != null) {
        this.largePacket.writeBytes(in, size);
    }

    // parse packet

    if (this.largePacket == null) {
        int pos = in.readerIndex();
        try {
            RecievePacket packet = readPacket(in, size);
            out.add(packet);
        } finally {
            in.readerIndex(pos + size);
        }
    } else {
        RecievePacket packet = readPacket(this.largePacket, size);
        out.add(packet);
        this.largePacket.release();
        this.largePacket = null;
    }
}

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