Example usage for io.netty.buffer ByteBuf readShort

Introduction

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

Prototype

public abstract short readShort();

Source Link

Document

Gets a 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.

Usage

From source file:com.farsunset.cim.sdk.server.filter.decoder.WebMessageDecoder.java

License:Apache License

@Override
public void decode(ChannelHandlerContext arg0, ByteBuf iobuffer, List<Object> queue) throws Exception {

    iobuffer.markReaderIndex();//  w  w w . jav a  2 s.c  o m

    /**
     * ?fin??1 0 ??
     */
    byte tag = iobuffer.readByte();
    int frameFin = tag > 0 ? 0 : 1; // ?byte ?1 ?0 fin 0  1
    if (frameFin == 0) {
        iobuffer.resetReaderIndex();
        return;
    }

    /**
     * ?protobuf?? OPCODE_BINARY? OPCODE_CLOSE
     */
    int frameOqcode = tag & TAG_MASK;

    if (OPCODE_BINARY == frameOqcode) {

        byte head = iobuffer.readByte();
        byte datalength = (byte) (head & PAYLOADLEN);
        int realLength = 0;

        /**
         * Payload len7?7+16?7+64????? 0-125payload
         * data 1267????2payload data
         * 1277????8payload data
         */
        if (datalength == HAS_EXTEND_DATA) {
            realLength = iobuffer.readShort();
        } else if (datalength == HAS_EXTEND_DATA_CONTINUE) {
            realLength = (int) iobuffer.readLong();
        } else {
            realLength = datalength;
        }

        boolean masked = (head >> 7 & MASK) == 1;
        if (masked) {// ?
            // ??
            byte[] mask = new byte[4];
            iobuffer.readBytes(mask);

            byte[] data = new byte[realLength];
            iobuffer.readBytes(data);
            for (int i = 0; i < realLength; i++) {
                // ??
                data[i] = (byte) (data[i] ^ mask[i % 4]);
            }

            handleMessage(data, queue);
        }

    } else if (OPCODE_CLOSE == frameOqcode) {
        handleClose(arg0);
    } else {
        // ?
        iobuffer.readBytes(new byte[iobuffer.readableBytes()]);
    }

}

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From source file:com.github.liyp.netty.App.java

License:Apache License

public static void main(String[] args) throws Exception {

    EventLoopGroup boss = new NioEventLoopGroup();
    EventLoopGroup worker = new NioEventLoopGroup();

    try {/*from www.  ja  va 2  s .  c  o m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(boss, worker).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ReplayingDecoder() {
                            @Override
                            protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out)
                                    throws Exception {
                                short magicHeader = in.readShort();
                                logger.debug("Receive magic header: {}.", magicHeader);
                                if (magicHeader != HEADER) {
                                    logger.error("Receive illegal magic header: {}, close channel: {}.",
                                            magicHeader, ctx.channel().remoteAddress());
                                    ctx.close();
                                }

                                short dataLen = in.readShort();
                                logger.debug("Receive message data length: {}.", dataLen);
                                if (dataLen < 0) {
                                    logger.error("Data length is negative, close channel: {}.",
                                            ctx.channel().remoteAddress());
                                    ctx.close();
                                }

                                ByteBuf payload = in.readBytes(dataLen);
                                String cloudMsg = payload.toString(CharsetUtil.UTF_8);
                                logger.debug("Receive data: {}.", cloudMsg);
                                out.add(cloudMsg);
                            }
                        }).addLast(new MessageToByteEncoder<String>() {
                            @Override
                            protected void encode(ChannelHandlerContext ctx, String msg, ByteBuf out)
                                    throws Exception {
                                out.writeBytes(msg.getBytes());
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("start receive msg...");
                            }

                            @Override
                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                                logger.info("receive msg: {}", msg);
                                logger.info("echo msg");
                                ctx.writeAndFlush(msg);
                            }
                        });
                    }
                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        ChannelFuture f = b.bind(PORT).sync();
        logger.info("9999");
        f.channel().closeFuture().sync();
    } finally {
        worker.shutdownGracefully();
        boss.shutdownGracefully();
    }
}

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From source file:com.github.milenkovicm.kafka.protocol.Convert.java

License:Apache License

public static short decodeShort(ByteBuf buf) {
    return buf.readShort();
}

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From source file:com.grandhunterman.dnvm.common.Message.java

License:Creative Commons License

private static short readShort(ByteBuf buf) {
    return buf.readShort();
}

---

From source file:com.heliosapm.ohcrs.core.AbstractDriverCodec.java

License:Apache License

/**
 * {@inheritDoc}//from  w w  w .j  ava  2  s.  co m
 * @see com.heliosapm.ohcrs.core.DriverCodec#readShort(io.netty.buffer.ByteBuf)
 */
@Override
public Short readShort(final ByteBuf b) throws SQLException {
    if (checkNull(b))
        return null;
    return b.readShort();
}

---

From source file:com.heliosapm.ohcrs.core.AbstractDriverCodec.java

License:Apache License

/**
 * {@inheritDoc}//from   ww  w .  j  av  a2s .c o  m
 * @see com.heliosapm.ohcrs.core.DriverCodec#readshort(io.netty.buffer.ByteBuf)
 */
@Override
public short readshort(final ByteBuf b) throws SQLException {
    if (checkNull(b))
        return 0;
    return b.readShort();
}

---

From source file:com.heliosapm.ohcrs.impls.oracle.OracleDriverCodec.java

License:Apache License

@Override
public Datum read(final DBType d, final ByteBuf b) throws SQLException {
    final short typeCode = b.readShort();
    if (checkNull(b))
        return null;
    final int size = b.readInt();
    final byte[] bytes = new byte[size];
    b.readBytes(bytes);/*from w w w. ja  v a2  s  .  co m*/
    final DBType dbType = DBType.forCode(typeCode);
    switch (dbType) {
    case BIT:
    case BIGINT:
    case DECIMAL:
    case DOUBLE:
    case FLOAT:
    case INTEGER:
    case NUMERIC:
    case TINYINT:
    case SMALLINT:
        return new NUMBER(bytes);
    case DATE:
    case TIME:
        return new oracle.sql.DATE(bytes);
    case TIMESTAMP:
        return new oracle.sql.TIMESTAMP(bytes);
    case ROWID:
        return new oracle.sql.ROWID(bytes);
    case CHAR:
    case NCHAR:
    case VARCHAR:
    case LONGVARCHAR:
    case LONGNVARCHAR:
    case NVARCHAR:
        final int charsetCode = b.readInt();
        final CharacterSet cs = CharacterSet.make(charsetCode);
        return new oracle.sql.CHAR(bytes, cs);
    default:
        throw new UnsupportedOperationException(dbType.name());
        //         case STRUCT:
        //         case BINARY:
        //         case BIT:
        //         case BLOB:
        //         case BOOLEAN:
        //         case CLOB:
        //         case DATALINK:
        //         case DISTINCT:
        //         case JAVA_OBJECT:
        //         case LONGVARBINARY:
        //         case NCLOB:
        //         case NULL:
        //         case OTHER:
        //         case REAL:
        //         case REF:
        //         case SQLXML:
        //         case VARBINARY:
    }
}

---

From source file:com.ibasco.agql.protocols.valve.steam.master.packets.MasterServerResponsePacket.java

License:Open Source License

@Override
public Vector<InetSocketAddress> toObject() {
    ByteBuf data = getPayloadBuffer();

    //Clear the list
    servers.clear();//from   www.j  a v  a2 s .c  om

    int firstOctet, secondOctet, thirdOctet, fourthOctet, portNumber;

    //Process the content containing list of source ips
    do {
        //Clear string
        ip.setLength(0);

        firstOctet = data.readByte() & 0xFF;
        secondOctet = data.readByte() & 0xFF;
        thirdOctet = data.readByte() & 0xFF;
        fourthOctet = data.readByte() & 0xFF;
        portNumber = data.readShort() & 0xFFFF;

        //Build our ip string
        ip.append(firstOctet).append(".").append(secondOctet).append(".").append(thirdOctet).append(".")
                .append(fourthOctet);

        //Add to the list
        servers.add(new InetSocketAddress(ip.toString(), portNumber));

        //Append port number
        ip.append(":").append(portNumber);
    } while (data.readableBytes() > 0);

    return servers;
}

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From source file:com.ibm.crail.namenode.rpc.netty.common.NettyRequest.java

License:Apache License

public void update(ByteBuf buffer) throws IOException {

    this.cookie = buffer.readLong();
    this.cmd = buffer.readShort();
    this.type = buffer.readShort();

    nioBuffer.clear();/* ww  w .  j  a  v a  2  s  . c o  m*/
    buffer.readBytes(nioBuffer);
    nioBuffer.flip();

    switch (type) {
    case NameNodeProtocol.REQ_CREATE_FILE:
        this.createFileReq = new RpcRequestMessage.CreateFileReq();
        createFileReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_FILE:
        this.fileReq = new RpcRequestMessage.GetFileReq();
        fileReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_SET_FILE:
        this.setFileReq = new RpcRequestMessage.SetFileReq();
        setFileReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_REMOVE_FILE:
        this.removeReq = new RpcRequestMessage.RemoveFileReq();
        removeReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_RENAME_FILE:
        this.renameFileReq = new RpcRequestMessage.RenameFileReq();
        renameFileReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_BLOCK:
        this.getBlockReq = new RpcRequestMessage.GetBlockReq();
        getBlockReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_LOCATION:
        this.getLocationReq = new RpcRequestMessage.GetLocationReq();
        getLocationReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_SET_BLOCK:
        this.setBlockReq = new RpcRequestMessage.SetBlockReq();
        setBlockReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_DATANODE:
        this.getDataNodeReq = new RpcRequestMessage.GetDataNodeReq();
        getDataNodeReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_DUMP_NAMENODE:
        this.dumpNameNodeReq = new RpcRequestMessage.DumpNameNodeReq();
        dumpNameNodeReq.update(nioBuffer);
        break;
    case NameNodeProtocol.REQ_PING_NAMENODE:
        this.pingNameNodeReq = new RpcRequestMessage.PingNameNodeReq();
        pingNameNodeReq.update(nioBuffer);
        break;
    }
}

---

From source file:com.ibm.crail.namenode.rpc.netty.common.NettyResponse.java

License:Apache License

public void update(long cookie, ByteBuf buffer) {
    assert this.cookie == cookie;
    this.type = buffer.readShort();
    this.error = buffer.readShort();

    nioBuffer.clear();// w w w.ja  v  a  2s  .  c o m
    buffer.readBytes(nioBuffer);
    nioBuffer.flip();
    switch (type) {
    case NameNodeProtocol.RES_VOID:
        //this.voidRes = new RpcResponseMessage.VoidRes();
        voidRes.update(nioBuffer);
        voidRes.setError(error);
        break;
    case NameNodeProtocol.RES_CREATE_FILE:
        //this.createFileRes = new RpcResponseMessage.CreateFileRes();
        createFileRes.update(nioBuffer);
        createFileRes.setError(error);
        break;
    case NameNodeProtocol.RES_GET_FILE:
        //this.getFileRes = new RpcResponseMessage.GetFileRes();
        getFileRes.update(nioBuffer);
        getFileRes.setError(error);
        break;
    case NameNodeProtocol.RES_DELETE_FILE:
        //this.delFileRes = new RpcResponseMessage.DeleteFileRes();
        delFileRes.update(nioBuffer);
        delFileRes.setError(error);
        break;
    case NameNodeProtocol.RES_RENAME_FILE:
        //this.renameRes = new RpcResponseMessage.RenameRes();
        renameRes.update(nioBuffer);
        renameRes.setError(error);
        break;
    case NameNodeProtocol.RES_GET_BLOCK:
        //this.getBlockRes = new RpcResponseMessage.GetBlockRes();
        getBlockRes.update(nioBuffer);
        getBlockRes.setError(error);
        break;
    case NameNodeProtocol.RES_GET_LOCATION:
        //this.getLocationRes = new RpcResponseMessage.GetLocationRes();
        getLocationRes.update(nioBuffer);
        getLocationRes.setError(error);
        break;
    case NameNodeProtocol.RES_GET_DATANODE:
        //this.getDataNodeRes = new RpcResponseMessage.GetDataNodeRes();
        getDataNodeRes.update(nioBuffer);
        getDataNodeRes.setError(error);
        break;
    case NameNodeProtocol.RES_PING_NAMENODE:
        //this.pingNameNodeRes = new RpcResponseMessage.PingNameNodeRes();
        pingNameNodeRes.update(nioBuffer);
        pingNameNodeRes.setError(error);
        break;
    }
}

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