Example usage for io.netty.buffer ByteBuf skipBytes

Introduction

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

Prototype

public abstract ByteBuf skipBytes(int length);

Source Link

Document

Increases the current readerIndex by the specified length in this buffer.

Usage

From source file:io.awacs.protocol.binary.BinaryMessageDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    int readable = in.readableBytes();
    if (readable > BinaryMessage.MAX_PACKET_SIZE) {
        in.skipBytes(readable);
        throw new TooLongFrameException();
    }/*from w  w  w.  j a v a  2s.  c o  m*/
    //???
    if (readable < 16) {
        return;
    }
    byte[] headerBytes = new byte[16];
    in.readBytes(headerBytes, 0, 16);
    int bodyLength = BinaryMessage.bodyLength(headerBytes);
    //body??body
    if (in.readableBytes() < bodyLength) {
        in.resetReaderIndex();
        return;
    }
    byte[] bodyBytes = new byte[bodyLength];
    in.readBytes(bodyBytes, 0, bodyLength);
    //        byte[] copy = new byte[16 + bodyLength];
    //        System.arraycopy(headerBytes, 0, copy, 0, 16);
    //        System.arraycopy(bodyBytes, 0, copy, 16, bodyLength);
    Message m = BinaryMessage.parse(headerBytes, bodyBytes);
    in.markReaderIndex();

    out.add(m);
}

From source file:io.codis.nedis.handler.RedisResponseDecoder.java

License:Apache License

private boolean decode(ByteBuf in, List<Object> out, Object nullValue) throws Exception {
    if (in.readableBytes() < 2) {
        return false;
    }//  w w  w  .  j a  v a2s  .  c om
    byte b = in.readByte();
    switch (b) {
    case '+': {
        String reply = decodeString(in);
        if (reply == null) {
            return false;
        }
        out.add(reply);
        return true;
    }
    case '-': {
        String reply = decodeString(in);
        if (reply == null) {
            return false;
        }
        out.add(new RedisResponseException(reply));
        return true;
    }
    case ':': {
        Long reply = decodeLong(in);
        if (reply == null) {
            return false;
        }
        out.add(reply);
        return true;
    }
    case '$': {
        Long numBytes = decodeLong(in);
        if (numBytes == null) {
            return false;
        }
        if (numBytes.intValue() == -1) {
            out.add(nullValue);
            return true;
        }
        if (in.readableBytes() < numBytes.intValue() + 2) {
            return false;
        }
        if (in.getByte(in.readerIndex() + numBytes.intValue()) != '\r'
                || in.getByte(in.readerIndex() + numBytes.intValue() + 1) != '\n') {
            throw new ProtocolException("Response is not ended by CRLF");
        }
        byte[] reply = new byte[numBytes.intValue()];
        in.readBytes(reply);
        // skip CRLF
        in.skipBytes(2);
        out.add(reply);
        return true;
    }
    case '*': {
        Long numReplies = decodeLong(in);
        if (numReplies == null) {
            return false;
        }
        if (numReplies.intValue() == -1) {
            out.add(nullValue);
            return true;
        }
        List<Object> replies = new ArrayList<>();
        for (int i = 0; i < numReplies.intValue(); i++) {
            if (!decode(in, replies, null)) {
                return false;
            }
        }
        out.add(replies);
        return true;
    }
    default:
        throw new ProtocolException("Unknown leading char: " + (char) b);
    }
}

From source file:io.datty.msgpack.core.AbstractMessageReader.java

License:Apache License

public void skipBytes(int numberOfBytes, ByteBuf buffer) {
    buffer.skipBytes(numberOfBytes);
}

From source file:io.datty.msgpack.core.ValueMessageReader.java

License:Apache License

public ByteBuf readBinary(ByteBuf source, boolean copy) {
    int length = readBinaryHeader(source);
    if (length > source.readableBytes()) {
        throw new MessageParseException(
                "insufficient buffer length: " + source.readableBytes() + ", required length: " + length);
    }//  w w w  .ja  v  a2  s.c om
    if (copy) {
        ByteBuf dst = source.alloc().buffer(length);
        source.readBytes(dst, length);
        return dst;
    } else {
        ByteBuf slice = source.slice(source.readerIndex(), length);
        source.skipBytes(length);
        return slice;
    }
}

From source file:io.gomint.proxprox.network.tcp.PacketDecompressor.java

License:BSD License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    int size = in.readInt();
    if (size == 0) {
        out.add(in.slice().retain());/*from  ww w .  jav  a  2  s  . co m*/
        in.skipBytes(in.readableBytes());
    } else {
        ByteBuf decompressed = ctx.alloc().directBuffer();

        try {
            zlib.process(in, decompressed);
            Preconditions.checkState(decompressed.readableBytes() == size, "Decompressed packet size mismatch");

            out.add(decompressed);
            decompressed = null;
        } finally {
            if (decompressed != null) {
                decompressed.release();
            }
        }
    }
}

From source file:io.grpc.netty.GrpcHpackHuffmanDecoder.java

License:Apache License

/**
 * Decompresses the given Huffman coded string literal.
 *
 * @param buf the string literal to be decoded
 * @return the output stream for the compressed data
 * @throws Http2Exception EOS Decoded/*from   w w w . j  a v a  2s  . c om*/
 */
public AsciiString decode(ByteBuf buf, int length) throws Http2Exception {
    processor.reset();
    buf.forEachByte(buf.readerIndex(), length, processor);
    buf.skipBytes(length);
    return processor.end();
}

From source file:io.hekate.network.netty.NettyMessage.java

License:Apache License

static String utf(ByteBuf buf) throws IOException {
    try {//w  w  w .j  av  a2  s  .com
        int len = buf.readInt();

        String string = buf.toString(buf.readerIndex(), len, StandardCharsets.UTF_8);

        buf.skipBytes(len);

        return string;
    } catch (IndexOutOfBoundsException e) {
        throw endOfStream(e);
    }
}

From source file:io.hydramq.core.type.ConversionContext.java

License:Open Source License

public <T> T read(Class<T> type, ByteBuf buffer) {
    if (Command.class.isAssignableFrom(type)) {
        buffer.skipBytes(Integer.BYTES); // swallow type field
    }/*  www .  j  ava 2s  . c  o m*/
    return lookup(type).read(this, buffer);
}

From source file:io.hydramq.core.type.converters.StringConverter.java

License:Open Source License

@Override
public String read(final ConversionContext context, final ByteBuf buffer) {
    int size = buffer.readInt();
    String value = buffer.toString(buffer.readerIndex(), size, CharsetUtil.UTF_8);
    buffer.skipBytes(size);
    return value;
}

From source file:io.moquette.parser.netty.ConnAckEncoderTest.java

License:Open Source License

@Test
public void testHeaderEncode() throws Exception {
    ConnAckMessage msg = new ConnAckMessage();

    //Exercise//from   w  ww.  j  a v a 2  s .  c o m
    ByteBuf out = Unpooled.buffer();

    //Exercise
    m_encoder.encode(m_mockedContext, msg, out);

    //Verify
    assertEquals(0x20, out.readByte()); //1 byte
    assertEquals(0x02, out.readByte()); //2 byte, length
    assertEquals(ConnAckMessage.CONNECTION_ACCEPTED, out.skipBytes(1).readByte());
}