Example usage for io.netty.buffer ByteBuf writeByte

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

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Introduction

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

Prototype

public abstract ByteBuf writeByte(int value);

Source Link

Document

Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.

Usage

From source file:com.neoba.messages.PingPongMessage.java

@Override
public ByteBuf result() {

    ByteBuf reply = buffer(6);
    reply.writeByte(Constants.VERSION);
    reply.writeByte(Constants.PINGPONG);
    reply.writeInt(Constants.W_PING);/*  www .  ja  va2s.co  m*/

    return reply;
}

From source file:com.neoba.messages.ProtocolExpiredMessage.java

@Override
public ByteBuf result() {

    ByteBuf reply = buffer(6);
    reply.writeByte(Constants.VERSION);
    reply.writeByte(type);/*from  w  w w .j a v a 2 s .  c  om*/
    reply.writeInt(Constants.W_ERR_PROTOCOL_EXPIRED);
    return reply;
}

From source file:com.neoba.messages.UserCreateMessage.java

@Override
public ByteBuf result() {

    ByteBuf reply = buffer(6);
    reply.writeByte(Constants.VERSION);
    reply.writeByte(Constants.USER_CREATE);
    if (!isnametaken)
        reply.writeInt(Constants.W_SUCCESS);
    else//from  www.  j av  a 2 s.  c  o  m
        reply.writeInt(Constants.W_ERR_DUP_USERNAME);
    return reply;
}

From source file:com.neoba.messages.UserLoginMessage.java

@Override
public ByteBuf result() {
    ByteBuf reply;
    if (response == Constants.W_SUCCESS) {
        reply = buffer(6 + 16);//  ww  w  .j  a  v  a 2s .  co m
    } else {
        reply = buffer(6);
    }

    reply.writeByte(Constants.VERSION);
    reply.writeByte(Constants.USER_LOGIN);
    reply.writeInt(response);
    if (response == Constants.W_SUCCESS) {
        reply.writeLong(sessid.getLeastSignificantBits());
        reply.writeLong(sessid.getMostSignificantBits());
    }
    return reply;
}

From source file:com.neoba.messages.UserLogoutMessage.java

public ByteBuf result() {
    ByteBuf reply = buffer(6);
    reply.writeByte(Constants.VERSION);
    reply.writeByte(Constants.LOGOUT);/*from   www  .j  ava2s . com*/
    if (session_not_found) {
        reply.writeInt(Constants.W_ERR_SESSION_NOT_FOUND);
    } else {
        reply.writeInt(Constants.W_SUCCESS);
    }
    return reply;
}

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyBackendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, Object msg) {
    ByteBuf buf = (ByteBuf) msg;//  ww  w.  j a  v  a  2s  .  c  o  m
    System.out.println("channelRead:" + ByteBufUtil.hexDump((buf)));
    while (buf.readableBytes() > 0) {

        int payload = buf.readUnsignedMedium();
        int frameType = buf.readByte();
        Http2Flags flags = new Http2Flags(buf.readUnsignedByte());
        int streamId = readUnsignedInt(buf);
        ByteBuf payloadBuf = buf.readBytes(payload);
        ByteBuf copy = ctx.alloc().buffer();
        System.out.println("frame_type:" + frameType + "," + ByteBufUtil.hexDump((payloadBuf)));
        switch (frameType) {
        case Http2FrameTypes.SETTINGS:
            handleSettingFrame(ctx, flags);
            break;
        case Http2FrameTypes.WINDOW_UPDATE:
            handleWindowsUpdateFrame(ctx);
            break;
        case Http2FrameTypes.HEADERS:

            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            forward(ctx, copy);
            break;
        case Http2FrameTypes.DATA:
            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            forward(ctx, copy);
            break;
        default:
            break;

        }
    }

}

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyBackendHandler.java

License:Apache License

private void handleSettingFrame(final ChannelHandlerContext ctx, Http2Flags flags) {
    ByteBufAllocator alloc = ctx.alloc();
    ByteBuf byteBuf = alloc.buffer();
    if (!flags.ack()) {

        //00 00 0c 04 00 00 00 00 00 00 03 7f ff ff ff 00
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);//  ww  w. j  av  a2  s  .  c om
        byteBuf.writeByte(0x0c);
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x03);
        byteBuf.writeByte(0x7f);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0x00);
        //04 00 10 00 00
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x10);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
    } else {
        //            System.out.println("********************* setting ack received ...");
        //00 00 00 04 01 00 00 00 00
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x01);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
    }
    ctx.writeAndFlush(byteBuf).addListener(new ChannelFutureListener() {
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                //                    System.out.println(" ...operationComplete isSuccess");
                ctx.channel().read();
            } else {
                //                    System.out.println("...operationComplete failure");
                future.channel().close();
            }
        }
    });
}

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyBackendHandler.java

License:Apache License

private void handleWindowsUpdateFrame(final ChannelHandlerContext ctx) {
    ByteBufAllocator alloc = ctx.alloc();
    ByteBuf byteBuf = alloc.buffer();
    // 00 00 04 08 00 00 00 00 00 00 0f 00 01
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);// ww  w  .  j a va2 s .c  o  m
    byteBuf.writeByte(0x04);
    byteBuf.writeByte(0x08);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x0f);
    byteBuf.writeByte(0x00);
    byteBuf.writeByte(0x01);
    ctx.writeAndFlush(byteBuf).addListener(new ChannelFutureListener() {
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                ctx.channel().read();
            } else {
                future.channel().close();
            }
        }
    });
}

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyFrontendHandler.java

License:Apache License

private void readFrame(final ChannelHandlerContext ctx, ByteBuf buf) {
    if (first) {//  w  w  w  .j  a v a 2  s .  c  om
        try {
            readClientPrefaceString(buf);
        } catch (Http2Exception e) {
            e.printStackTrace();
        }
        first = false;
    }

    while (buf.readableBytes() > 0) {

        int payload = buf.readUnsignedMedium();
        int frameType = buf.readByte();
        Http2Flags flags = new Http2Flags(buf.readUnsignedByte());
        int streamId = readUnsignedInt(buf);
        ByteBuf payloadBuf = buf.readBytes(payload);
        ByteBuf copy = ctx.alloc().buffer();
        switch (frameType) {
        case Http2FrameTypes.SETTINGS:
            handleSettingFrame(ctx, flags);
            break;
        case Http2FrameTypes.WINDOW_UPDATE:
            handleWindowsUpdateFrame(ctx);
            break;
        case Http2FrameTypes.HEADERS:

            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            handleHeaderFrame(ctx, copy, streamId);
            break;
        case Http2FrameTypes.DATA:
            copy.writeMedium(payload);
            copy.writeByte(frameType);
            copy.writeByte(flags.value());
            copy.writeInt(streamId);
            copy.writeBytes(payloadBuf);
            handleDataFrame(ctx, copy, streamId);
            break;
        default:
            break;

        }
    }
}

From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyFrontendHandler.java

License:Apache License

private void handleSettingFrame(final ChannelHandlerContext ctx, Http2Flags flags) {
    ByteBufAllocator alloc = ctx.alloc();
    ByteBuf byteBuf = alloc.buffer();
    if (!flags.ack()) {
        //            System.out.println("********************* setting received ...");

        //00 00 0c 04 00 00 00 00 00 00 03 7f ff ff ff 00
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);/*from w w w  . java  2  s .  com*/
        byteBuf.writeByte(0x0c);
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x03);
        byteBuf.writeByte(0x7f);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0xff);
        byteBuf.writeByte(0x00);
        //04 00 10 00 00
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x10);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
    } else {
        //            System.out.println("********************* setting ack received ...");
        //00 00 00 04 01 00 00 00 00
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x04);
        byteBuf.writeByte(0x01);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
        byteBuf.writeByte(0x00);
    }
    ctx.writeAndFlush(byteBuf).addListener(new ChannelFutureListener() {
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                //                    System.out.println(" ...operationComplete isSuccess");
                ctx.channel().read();
            } else {
                //                    System.out.println("...operationComplete failure");
                future.channel().close();
            }
        }
    });

}