Example usage for io.netty.buffer ByteBuf readableBytes

Introduction

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

Prototype

public abstract int readableBytes();

Source Link

Document

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex) .

Usage

From source file:buildcraft.core.network.RPCHandler.java

License:Minecraft Mod Public

private PacketRPCPipe createRCPPacket(Pipe pipe, String method, Object... actuals) {
    ByteBuf data = Unpooled.buffer();

    try {//from   ww  w. ja  v  a2s .  co m
        TileEntity tile = pipe.container;

        // In order to save space on message, we assuming dimensions ids
        // small. Maybe worth using a varint instead
        data.writeShort(tile.getWorldObj().provider.dimensionId);
        data.writeInt(tile.xCoord);
        data.writeInt(tile.yCoord);
        data.writeInt(tile.zCoord);

        writeParameters(method, data, actuals);
    } catch (IOException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }

    byte[] bytes = new byte[data.readableBytes()];
    data.readBytes(bytes);

    return new PacketRPCPipe(bytes);
}

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From source file:buildcraft.core.network.RPCHandler.java

License:Minecraft Mod Public

private PacketRPCTile createRCPPacket(TileEntity tile, String method, Object... actuals) {
    ByteBuf data = Unpooled.buffer();

    try {// w w w.  jav  a2  s .  c om
        writeParameters(method, data, actuals);
    } catch (IOException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }

    byte[] bytes = new byte[data.readableBytes()];
    data.readBytes(bytes);

    return new PacketRPCTile(tile, bytes);
}

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From source file:buildcraft.lib.tile.TileBC_Neptune.java

License:Mozilla Public License

@Override
public NBTTagCompound getUpdateTag() {
    ByteBuf buf = Unpooled.buffer();
    buf.writeShort(NET_RENDER_DATA);//from   www  .  j  a va 2s  .c om
    writePayload(NET_RENDER_DATA, new PacketBufferBC(buf), world.isRemote ? Side.CLIENT : Side.SERVER);
    byte[] bytes = new byte[buf.readableBytes()];
    buf.readBytes(bytes);

    NBTTagCompound nbt = super.getUpdateTag();
    nbt.setByteArray("d", bytes);
    return nbt;
}

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From source file:c5db.control.ClientHttpProtostuffEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Message msg, List<Object> out) throws Exception {
    Class<?> messageType = msg.getClass();

    LowCopyProtobufOutput outputSerializer = new LowCopyProtobufOutput();
    msg.cachedSchema().writeTo(outputSerializer, msg);
    List<ByteBuffer> serializedBuffers = outputSerializer.buffer.finish();
    ByteBuf requestContent = Unpooled.wrappedBuffer(serializedBuffers.toArray(new ByteBuffer[] {}));

    DefaultFullHttpRequest httpRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_0, HttpMethod.POST,
            "foo", requestContent);

    httpRequest.headers().set(HttpProtostuffConstants.PROTOSTUFF_HEADER_NAME, messageType.getName());
    httpRequest.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/octet-stream");
    httpRequest.headers().set(HttpHeaders.Names.CONTENT_LENGTH, requestContent.readableBytes());

    out.add(httpRequest);/* w ww  .j  ava  2s .  c om*/
}

---

From source file:c5db.discovery.InboundHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
    SocketAddress remoteAddress = ctx.channel().remoteAddress();
    SocketAddress localAddress = ctx.channel().localAddress();

    System.out.println("Got message from " + remoteAddress + " to me at: " + localAddress);
    System.out.println("  It was SOOO big: " + msg.readableBytes());

}

---

From source file:c5db.replication.ReplicationWireMessageTest.java

License:Apache License

@Test
public void testSimpleSerialization() throws Exception {
    RequestVote rv = new RequestVote(1, 22222, 34, 22);
    ReplicationWireMessage rwm = new ReplicationWireMessage(1, 1, 0, "quorumId", false, rv, null, null, null,
            null, null);/*  w  w  w .j  a va2  s .c  o  m*/

    LowCopyProtobufOutput lcpo = new LowCopyProtobufOutput(new LinkBuffer(24));
    rwm.writeTo(lcpo, rwm);
    List<ByteBuffer> serBufs = lcpo.buffer.finish();
    logBufsInformation("ReplicationWireMessage", serBufs);

    ByteBuf b = Unpooled.wrappedBuffer(serBufs.toArray(new ByteBuffer[serBufs.size()]));
    System.out.println("ByteBuf info = " + b);
    System.out.println("ByteBuf size = " + b.readableBytes());
    assertEquals(lcpo.buffer.size(), b.readableBytes());

    System.out.println("rwm = " + rwm);
}

---

From source file:ca.lambtoncollege.netty.webSocket.ServerHandlerWebSocket.java

private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req) {
    // Handle a bad request.
    if (!req.getDecoderResult().isSuccess()) {
        sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
        return;//w  w w .ja v  a  2  s. co m
    }

    // Allow only GET methods.
    if (req.getMethod() != GET) {
        sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
        return;
    }

    // Send the demo page and favicon.ico
    if ("/".equals(req.getUri())) {
        ByteBuf content = ServerIndexPageWebSocket.getContent(getWebSocketLocation(req));
        FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);

        res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
        HttpHeaders.setContentLength(res, content.readableBytes());

        sendHttpResponse(ctx, req, res);
        return;
    }
    if ("/favicon.ico".equals(req.getUri())) {
        FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
        sendHttpResponse(ctx, req, res);
        return;
    }

    // Handshake
    WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(getWebSocketLocation(req),
            null, true);
    handshaker = wsFactory.newHandshaker(req);
    if (handshaker == null) {
        WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(ctx.channel());
    } else {
        handshaker.handshake(ctx.channel(), req);
    }
}

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From source file:cat.tbq.hospital.nio.echoExample.EchoClientHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf byteBuf = (ByteBuf) msg;
    int size = byteBuf.readableBytes();
    for (int i = 0; i < size; i++) {
        System.out.println("client===" + (char) byteBuf.getByte(i));
        ;/*from w  ww  . ja  v a 2 s.  c  o  m*/
    }
    //        ctx.write(msg);
}

---

From source file:cat.tbq.hospital.nio.echoExample.EchoServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf byteBuf = (ByteBuf) msg;
    int size = byteBuf.readableBytes();
    for (int i = 0; i < size; i++) {
        System.out.println("===" + (char) byteBuf.getByte(i));
        ;/*from w w  w  .ja v  a  2  s  . co m*/
    }
    ByteBuf firstMessage = Unpooled.buffer(20);
    firstMessage.writeBytes("hello how are you".getBytes());
    ctx.writeAndFlush(firstMessage);
}

---

From source file:cc.agentx.client.net.nio.XConnectHandler.java

License:Apache License

@Override
public void channelRead0(final ChannelHandlerContext ctx, final SocksCmdRequest request) throws Exception {
    boolean proxyMode = isAgentXNeeded(request.host());
    log.info("\tClient -> Proxy           \tTarget {}:{} [{}]", request.host(), request.port(),
            proxyMode ? "AGENTX" : "DIRECT");
    Promise<Channel> promise = ctx.executor().newPromise();
    promise.addListener(new FutureListener<Channel>() {
        @Override//  w  ww. ja v  a2 s .  c o  m
        public void operationComplete(final Future<Channel> future) throws Exception {
            final Channel outboundChannel = future.getNow();
            if (future.isSuccess()) {
                ctx.channel().writeAndFlush(new SocksCmdResponse(SocksCmdStatus.SUCCESS, request.addressType()))
                        .addListener(channelFuture -> {
                            ByteBuf byteBuf = Unpooled.buffer();
                            request.encodeAsByteBuf(byteBuf);
                            if (byteBuf.hasArray()) {
                                byte[] xRequestBytes = new byte[byteBuf.readableBytes()];
                                byteBuf.getBytes(0, xRequestBytes);

                                if (proxyMode) {
                                    // handshaking to remote proxy
                                    xRequestBytes = requestWrapper.wrap(xRequestBytes);
                                    outboundChannel.writeAndFlush(Unpooled.wrappedBuffer(
                                            exposeRequest ? xRequestBytes : wrapper.wrap(xRequestBytes)));
                                }

                                // task handover
                                ReferenceCountUtil.retain(request); // auto-release? a trap?
                                ctx.pipeline().remove(XConnectHandler.this);
                                outboundChannel.pipeline().addLast(new XRelayHandler(ctx.channel(),
                                        proxyMode ? wrapper : rawWrapper, false));
                                ctx.pipeline().addLast(new XRelayHandler(outboundChannel,
                                        proxyMode ? wrapper : rawWrapper, true));
                            }
                        });
            } else {
                ctx.channel()
                        .writeAndFlush(new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));

                if (ctx.channel().isActive()) {
                    ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                }
            }
        }
    });

    String host = request.host();
    int port = request.port();
    if (host.equals(config.getConsoleDomain())) {
        host = "localhost";
        port = config.getConsolePort();
    } else if (proxyMode) {
        host = config.getServerHost();
        port = config.getServerPort();
    }

    // ping target
    bootstrap.group(ctx.channel().eventLoop()).channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000).option(ChannelOption.SO_KEEPALIVE, true)
            .handler(new XPingHandler(promise, System.currentTimeMillis())).connect(host, port)
            .addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (!future.isSuccess()) {
                        ctx.channel().writeAndFlush(
                                new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));
                        if (ctx.channel().isActive()) {
                            ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                        }
                    }
                }
            });
}

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