Example usage for io.netty.buffer ByteBuf writeZero

List of usage examples for io.netty.buffer ByteBuf writeZero

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Introduction

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

Prototype

public abstract ByteBuf writeZero(int length);

Source Link

Document

Fills this buffer with NUL (0x00) starting at the current writerIndex and increases the writerIndex by the specified length .

Usage

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPComStmtExecuteRequestMessage.java

License:Open Source License

@Override
protected void marshall(ParsedData state, ByteBuf destination) {
    ByteBuf leBuf = destination.order(ByteOrder.LITTLE_ENDIAN);
    leBuf.writeByte(TYPE_IDENTIFIER);/* w w w  .j  a  v  a2  s.c o  m*/
    leBuf.writeInt((int) state.statementID);
    leBuf.writeByte(state.flags);
    leBuf.writeInt((int) state.iterationCount);
    if (state.metadata == null)
        throw new IllegalStateException("Cannot build execute request, no prepare metadata provided.");

    int numParams = state.metadata.getNumParams();
    if (numParams > 0) {
        MyNullBitmap nullBitmap = new MyNullBitmap(numParams, MyNullBitmap.BitmapType.EXECUTE_REQUEST);
        int bitmapIndex = leBuf.writerIndex();
        leBuf.writeZero(nullBitmap.length());
        if (state.metadata.isNewParameterList()) {
            leBuf.writeByte(1);
            for (MyParameter param : state.metadata.getParameters()) {
                leBuf.writeByte(param.getType().getByteValue());
                leBuf.writeZero(1);
            }
        } else {
            leBuf.writeZero(1);
        }
        List<Object> params = state.values;
        for (int i = 0; i < params.size(); ++i) {
            if (params.get(i) != null)
                DBTypeBasedUtils.getJavaTypeFunc(params.get(i).getClass()).writeObject(leBuf, params.get(i));
            else
                nullBitmap.setBit(i + 1);
        }
        leBuf.setBytes(bitmapIndex, nullBitmap.getBitmapArray());
    }
}

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPServerGreetingRequestMessage.java

License:Open Source License

public static void write(ChannelHandlerContext ctx, int connectionId, String salt, int serverCapabilities,
        String serverVersion, byte serverCharSet, String pluginData) {
    ByteBuf out = ctx.channel().alloc().heapBuffer(50).order(ByteOrder.LITTLE_ENDIAN);

    String scrambleBuffer1st = salt.substring(0, 8);
    String scrambleBuffer2nd = salt.substring(8) + '\0';
    Integer scrambleBufferSize = scrambleBuffer1st.length() + scrambleBuffer2nd.length();

    ByteBuf serverCapabilitiesBuf = ctx.channel().alloc().heapBuffer(4).order(ByteOrder.LITTLE_ENDIAN);
    try {//  w w w.  ja  v a 2 s.  c o  m
        serverCapabilitiesBuf.writeInt(serverCapabilities);
        out.writeMedium(0);
        out.writeByte(0);
        out.writeByte(MYSQL_PROTOCOL_VERSION);

        out.writeBytes(serverVersion.getBytes());
        out.writeZero(1);
        out.writeInt(connectionId);
        out.writeBytes(scrambleBuffer1st.getBytes()); // Salt
        out.writeZero(1);
        out.writeByte(serverCapabilitiesBuf.getByte(0));
        out.writeByte(serverCapabilitiesBuf.getByte(1));

        out.writeByte(serverCharSet);
        out.writeShort(MyProtocolDefs.SERVER_STATUS_AUTOCOMMIT);
        out.writeByte(serverCapabilitiesBuf.getByte(2));
        out.writeByte(serverCapabilitiesBuf.getByte(3));
        out.writeByte(scrambleBufferSize.byteValue());
        out.writeZero(10); // write 10 unused bytes
        out.writeBytes(scrambleBuffer2nd.getBytes()); // Salt

        out.writeBytes(pluginData.getBytes()); // payload
        out.writeZero(1);

        out.setMedium(0, out.writerIndex() - 4);

        ctx.channel().writeAndFlush(out);
    } finally {
        serverCapabilitiesBuf.release();
    }
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyComBinLogDumpRequest.java

License:Open Source License

@Override
public void marshallMessage(ByteBuf cb) {
    cb.writeInt((int) binlogPosition);
    cb.writeZero(2); // binlog_flags
    cb.writeInt(slaveServerID);//w ww.  j a  va2  s .  c  om
    if (binlogFileName != null) {
        cb.writeBytes(binlogFileName.getBytes(CharsetUtil.UTF_8));
    }
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyComRegisterSlaveRequest.java

License:Open Source License

@Override
public void marshallMessage(ByteBuf cb) {
    cb.writeInt(slaveServerId);//w  ww.j  av  a  2 s.  co  m
    MysqlAPIUtils.putLengthCodedString(cb, reportHost, true /* codeNullasZero */);
    MysqlAPIUtils.putLengthCodedString(cb, reportUser, true /* codeNullasZero */);
    MysqlAPIUtils.putLengthCodedString(cb, reportPassword, true /* codeNullasZero */);
    cb.writeShort(reportPort);
    cb.writeZero(8);
}

From source file:com.tesora.dve.mysqlapi.repl.messages.MyFormatDescriptionLogEvent.java

License:Open Source License

@Override
public void marshallMessage(ByteBuf cb) {
    cb.writeShort(binaryLogVersion);/*from   w w w. j  av a  2 s.  co  m*/
    cb.writeBytes(serverVersion.getBytes(CharsetUtil.UTF_8));
    cb.writeInt((int) createTime);
    cb.writeByte(0xFF & eventTypeLength);
    switch (MyBinLogVerType.fromByte((byte) binaryLogVersion)) {

    case MySQL_5_0:
        for (int i = 1; i <= eventTypeValues.size(); i++) {
            cb.writeByte(eventTypeValues.get(MyLogEventType.fromByte((byte) i)));
        }
        cb.writeZero(1);
        break;

    default:
        break;
    }
}

From source file:com.uber.tchannel.codecs.TFrameCodec.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, TFrame frame, ByteBuf out) throws Exception {
    // size:2/*from   w  w  w.ja  v a2  s. c  o  m*/
    out.writeShort(frame.size + TFrame.FRAME_HEADER_LENGTH);

    // type:1
    out.writeByte(frame.type);

    // reserved:1
    out.writeZero(1);

    // id:4
    out.writeInt((int) frame.id);

    // reserved:8
    out.writeZero(8);

    // payload:16+
    out.writeBytes(frame.payload);
}

From source file:com.uber.tchannel.codecs.TFrameCodec.java

License:Open Source License

public static ByteBuf encode(ByteBufAllocator allocator, TFrame frame) {
    ByteBuf buffer = allocator.buffer(TFrame.FRAME_HEADER_LENGTH, TFrame.FRAME_HEADER_LENGTH);

    // size:2//from ww w.  j a v  a2s .c  om
    buffer.writeShort(frame.size + TFrame.FRAME_HEADER_LENGTH);

    // type:1
    buffer.writeByte(frame.type);

    // reserved:1
    buffer.writeZero(1);

    // id:4
    buffer.writeInt((int) frame.id);

    // reserved:8
    buffer.writeZero(8);

    // TODO: refactor
    if (frame.payload instanceof CompositeByteBuf) {
        CompositeByteBuf cbf = (CompositeByteBuf) frame.payload;
        cbf.addComponent(0, buffer);
        cbf.writerIndex(cbf.writerIndex() + TFrame.FRAME_HEADER_LENGTH);
        return cbf;
    }

    return Unpooled.wrappedBuffer(buffer, frame.payload);
}

From source file:io.airlift.drift.transport.netty.codec.HeaderTransport.java

License:Apache License

private static ByteBuf getPadding(int headerSize) {
    int paddingSize = 4 - headerSize % 4;
    ByteBuf padding = Unpooled.buffer(paddingSize);
    padding.writeZero(paddingSize);
    return padding;
}

From source file:net.petercashel.nettyCore.common.packetCore.PacketBase.java

License:Apache License

public void sendPacket(ChannelHandlerContext ctx) {
    ByteBuf b = ctx.alloc().buffer(Packet.packetBufSize + Packet.packetHeaderSize,
            Packet.packetBufSize + Packet.packetHeaderSize);
    b.writeInt(PacketRegistry.GetOtherSide());
    b.writeInt(packetID);// w  w  w  .j ava2 s  .c  o  m
    b.writeBytes(packet);
    if (b.readableBytes() == (Packet.packetBufSize + Packet.packetHeaderSize)) {
        ctx.writeAndFlush(b);
    } else if (b.readableBytes() > (Packet.packetBufSize + Packet.packetHeaderSize)) {
        System.out.println("INVALID PACKET! DISCARDING!");
    } else {
        b.writeZero(b.writableBytes());

        if (b.readableBytes() == (Packet.packetBufSize + Packet.packetHeaderSize)) {
            ctx.writeAndFlush(b);
        } else if (b.readableBytes() > (Packet.packetBufSize + Packet.packetHeaderSize)) {
            System.out.println("INVALID PACKET! DISCARDING!");
        }
    }

}

From source file:net.petercashel.nettyCore.common.packetCore.PacketBase.java

License:Apache License

public void sendPacket(Channel c) {
    ByteBuf b = c.alloc().buffer(Packet.packetBufSize + Packet.packetHeaderSize,
            Packet.packetBufSize + Packet.packetHeaderSize);
    b.writeInt(PacketRegistry.GetOtherSide());
    b.writeInt(packetID);/*from  w w w.j a  v a 2 s. c  o m*/
    b.writeBytes(packet);
    if (b.readableBytes() == (Packet.packetBufSize + Packet.packetHeaderSize)) {
        c.writeAndFlush(b);
    } else if (b.readableBytes() > (Packet.packetBufSize + Packet.packetHeaderSize)) {
        System.out.println("INVALID PACKET! DISCARDING!");
    } else {
        b.writeZero(b.writableBytes());

        if (b.readableBytes() == (Packet.packetBufSize + Packet.packetHeaderSize)) {
            c.writeAndFlush(b);
        } else if (b.readableBytes() > (Packet.packetBufSize + Packet.packetHeaderSize)) {
            System.out.println("INVALID PACKET! DISCARDING!");
        }
    }

}