Example usage for io.netty.channel ChannelHandlerContext fireChannelRead

List of usage examples for io.netty.channel ChannelHandlerContext fireChannelRead

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Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext fireChannelRead.

Prototype

@Override
    ChannelHandlerContext fireChannelRead(Object msg);

Source Link

Usage

From source file:com.ibasco.agql.protocols.valve.source.query.handlers.SourceQueryPacketAssembler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    log.trace("SourcePacketHandler.channelRead() : START");

    try {/*from  w w w .  j a  v a 2  s  . c  o  m*/
        //Make sure we are only receiving an instance of DatagramPacket
        if (!(msg instanceof DatagramPacket)) {
            return;
        }

        final DatagramPacket packet = (DatagramPacket) msg;
        final ByteBuf data = ((DatagramPacket) msg).content();

        //Verify size
        if (data.readableBytes() <= 5) {
            log.debug(
                    "Not a valid datagram for processing. Size getTotalRequests needs to be at least more than or equal to 5 bytes. Discarding. (Readable Bytes: {})",
                    data.readableBytes());
            return;
        }

        //Try to read protocol header, determine if its a single packet or a split-packet
        int protocolHeader = data.readIntLE();

        //If the packet arrived is single type, we can already forward it to the next handler
        if (protocolHeader == 0xFFFFFFFF) {
            //Pass the message to the succeeding handlers
            ctx.fireChannelRead(packet.retain());
            return;
        }
        //If the packet is a split type...we need to process each succeeding read until we have a complete packet
        else if (protocolHeader == 0xFFFFFFFE) {
            final ByteBuf reassembledPacket = processSplitPackets(data, ctx.channel().alloc(), packet.sender());
            //Check if we already have a reassembled packet
            if (reassembledPacket != null) {
                ctx.fireChannelRead(packet.replace(reassembledPacket));
                return;
            }
        }
        //Packet is not being handled by any of our processors, discard
        else {
            log.debug("Not a valid protocol header. Discarding. (Header Received: Dec = {}, Hex = {})",
                    protocolHeader, Integer.toHexString(protocolHeader));
            return;
        }
    } catch (Exception e) {
        log.error(String.format("Error while processing packet for %s", ((DatagramPacket) msg).sender()), e);
        throw e;
    } finally {
        //Release the message
        ReferenceCountUtil.release(msg);
    }
    log.trace("SourcePacketHandler.channelRead() : END");
}

From source file:com.irh.material.basics.netty.chapter14_1.server.LoginAuthRespHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;
    // ?????//from   ww  w .  j ava 2 s .  c  o  m
    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_REQ.value()) {
        String nodeIndex = ctx.channel().remoteAddress().toString();
        NettyMessage loginResp = null;
        // ???
        if (nodeCheck.containsKey(nodeIndex)) {
            loginResp = buildResponse((byte) -1);
        } else {
            InetSocketAddress address = (InetSocketAddress) ctx.channel().remoteAddress();
            String ip = address.getAddress().getHostAddress();
            boolean isOK = false;
            for (String WIP : whitekList) {
                if (WIP.equals(ip)) {
                    isOK = true;
                    break;
                }
            }
            loginResp = isOK ? buildResponse((byte) 0) : buildResponse((byte) -1);
            if (isOK) {
                nodeCheck.put(nodeIndex, true);
            }
        }
        System.out.println("The login response is : " + loginResp + " body [" + loginResp.getBody() + "]");
        ctx.writeAndFlush(loginResp);
    } else {
        ctx.fireChannelRead(msg);
    }
}

From source file:com.jansegre.jwar.webapi.FileServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
    request.retain();/* w  ww  .  j a va 2s.  co  m*/
    if (!request.getDecoderResult().isSuccess()) {
        sendError(ctx, BAD_REQUEST);
        ctx.fireChannelRead(request);
        return;
    }

    if (request.getMethod() != GET) {
        sendError(ctx, METHOD_NOT_ALLOWED);
        ctx.fireChannelRead(request);
        return;
    }

    final String uri = request.getUri();
    final String path = sanitizeUri(uri);
    if (path == null) {
        sendError(ctx, FORBIDDEN);
        ctx.fireChannelRead(request);
        return;
    }

    //XXX: notice hardcoded socket.io namespace
    if (uri.startsWith("/socket.io")) {
        ctx.fireChannelRead(request);
        return;
    }

    File file = new File(path);
    if (file.isHidden() || !file.exists()) {
        sendError(ctx, NOT_FOUND);
        return;
    }

    if (file.isDirectory()) {
        if (uri.endsWith("/")) {
            File index_file = new File(sanitizeUri(uri + INDEX_FILE));
            if (index_file.exists()) {
                file = index_file;
            } else {
                sendListing(ctx, file);
                return;
            }
        } else {
            sendRedirect(ctx, uri + '/');
            return;
        }
    }

    if (!file.isFile()) {
        sendError(ctx, FORBIDDEN);
        return;
    }

    // Cache Validation
    String ifModifiedSince = request.headers().get(IF_MODIFIED_SINCE);
    if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
        SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
        Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);

        // Only compare up to the second because the datetime format we send to the client
        // does not have milliseconds
        long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
        long fileLastModifiedSeconds = file.lastModified() / 1000;
        if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
            sendNotModified(ctx);
            return;
        }
    }

    RandomAccessFile raf;
    try {
        raf = new RandomAccessFile(file, "r");
    } catch (FileNotFoundException fnfe) {
        sendError(ctx, NOT_FOUND);
        return;
    }
    long fileLength = raf.length();

    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    setContentLength(response, fileLength);
    setContentTypeHeader(response, file);
    setDateAndCacheHeaders(response, file);
    if (isKeepAlive(request)) {
        response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    }

    // Write the initial line and the header.
    ctx.write(response);

    // Write the content.
    ChannelFuture sendFileFuture;
    if (useSendFile) {
        sendFileFuture = ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength),
                ctx.newProgressivePromise());
    } else {
        sendFileFuture = ctx.write(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
    }

    sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
        @Override
        public void operationProgressed(ChannelProgressiveFuture future, long progress, long total) {
            if (total < 0) { // total unknown
                System.err.println("Transfer progress: " + progress);
            } else {
                System.err.println("Transfer progress: " + progress + " / " + total);
            }
        }

        @Override
        public void operationComplete(ChannelProgressiveFuture future) throws Exception {
            System.err.println("Transfer complete.");
        }
    });

    // Write the end marker
    ChannelFuture lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);

    // Decide whether to close the connection or not.
    if (!isKeepAlive(request)) {
        // Close the connection when the whole content is written out.
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.jjzhk.Chapter14.netty.HeartBeatReqHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;

    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        heartBeat = ctx.executor().scheduleAtFixedRate(new HeartBeatReqHandler.HeartBeatTask(ctx), 0, 5000,
                TimeUnit.MILLISECONDS);
    } else if (message.getHeader() != null
            && message.getHeader().getType() == MessageType.HEARTBEAT_RESP.value()) {
        System.out.println("Client receive server heart beat message : ---> " + message);
    } else/* w ww  . j a  va2  s  .c o m*/
        ctx.fireChannelRead(msg);
}

From source file:com.jjzhk.Chapter14.netty.HeartBeatRespHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;

    if (message.getHeader() != null && message.getHeader().getType() == MessageType.HEARTBEAT_REQ.value()) {
        System.out.println("Receive client heart beat message : ---> " + message);
        NettyMessage heartBeat = buildHeatBeat();
        System.out.println("Send heart beat response message to client : ---> " + heartBeat);
        ctx.writeAndFlush(heartBeat);/*from w w  w  .  j  a  va  2  s.c  om*/
    } else
        ctx.fireChannelRead(msg);
}

From source file:com.jjzhk.Chapter14.netty.LoginAuthReqHandler.java

License:Apache License

/**
 * Calls {@link ChannelHandlerContext#fireChannelRead(Object)} to forward to
 * the next {@link ChannelHandler} in the {@link ChannelPipeline}.
 * /*from  w ww . ja  v  a2  s  .  co  m*/
 * Sub-classes may override this method to change behavior.
 */
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;

    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        byte loginResult = (Byte) message.getBody();
        if (loginResult != (byte) 0) {

            ctx.close();
        } else {
            System.out.println("Login is ok : " + message);
            ctx.fireChannelRead(msg);
        }
    } else
        ctx.fireChannelRead(msg);
}

From source file:com.jjzhk.Chapter14.netty.LoginAuthRespHandler.java

License:Apache License

/**
 * Calls {@link ChannelHandlerContext#fireChannelRead(Object)} to forward to
 * the next {@link ChannelHandler} in the {@link ChannelPipeline}.
 * /*from   w  w  w.  jav  a2  s.co  m*/
 * Sub-classes may override this method to change behavior.
 */
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;

    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_REQ.value()) {
        String nodeIndex = ctx.channel().remoteAddress().toString();
        NettyMessage loginResp = null;
        if (nodeCheck.containsKey(nodeIndex)) {
            loginResp = buildResponse((byte) -1);
        } else {
            InetSocketAddress address = (InetSocketAddress) ctx.channel().remoteAddress();
            String ip = address.getAddress().getHostAddress();
            boolean isOK = false;
            for (String WIP : whitekList) {
                if (WIP.equals(ip)) {
                    isOK = true;
                    break;
                }
            }
            loginResp = isOK ? buildResponse((byte) 0) : buildResponse((byte) -1);
            if (isOK)
                nodeCheck.put(nodeIndex, true);
        }
        System.out.println("The login response is : " + loginResp + " body [" + loginResp.getBody() + "]");
        ctx.writeAndFlush(loginResp);
    } else {
        ctx.fireChannelRead(msg);
    }
}

From source file:com.jroossien.boxx.util.protocol.TinyProtocol.java

License:Open Source License

private void createServerChannelHandler() {
    // Handle connected channels
    endInitProtocol = new ChannelInitializer<Channel>() {

        @Override//from   w  ww  .  j  a  v  a 2s . com
        protected void initChannel(Channel channel) throws Exception {
            try {
                // This can take a while, so we need to stop the main thread from interfering
                synchronized (networkManagers) {
                    // Stop injecting channels
                    if (!closed) {
                        injectChannelInternal(channel);
                    }
                }
            } catch (Exception e) {
                plugin.getLogger().log(Level.SEVERE, "Cannot inject incomming channel " + channel, e);
            }
        }

    };

    // This is executed before Minecraft's channel handler
    beginInitProtocol = new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel channel) throws Exception {
            channel.pipeline().addLast(endInitProtocol);
        }

    };

    serverChannelHandler = new ChannelInboundHandlerAdapter() {

        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            Channel channel = (Channel) msg;

            // Prepare to initialize ths channel
            channel.pipeline().addFirst(beginInitProtocol);
            ctx.fireChannelRead(msg);
        }

    };
}

From source file:com.lampard.netty4.protocol.netty.client.HeartBeatReqHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;
    // ?????//from   w  w  w .  jav  a2  s .  c  o  m
    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        heartBeat = ctx.executor().scheduleAtFixedRate(new HeartBeatReqHandler.HeartBeatTask(ctx), 0, 5000,
                TimeUnit.MILLISECONDS);
    } else if (message.getHeader() != null
            && message.getHeader().getType() == MessageType.HEARTBEAT_RESP.value()) {
        LOG.info("Client receive server heart beat message : ---> " + message);
    } else
        ctx.fireChannelRead(msg);
}

From source file:com.lampard.netty4.protocol.netty.client.LoginAuthReqHandler.java

License:Apache License

/**
 * Calls {@link ChannelHandlerContext#fireChannelRead(Object)} to forward to
 * the next {@link ChannelHandler} in the {@link ChannelPipeline}.
 * <p/>/*from   w  ww  .  j av  a 2 s  .  c o  m*/
 * Sub-classes may override this method to change behavior.
 */
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;

    // ??????
    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        byte loginResult = (byte) message.getBody();
        if (loginResult != (byte) 0) {
            // ?
            ctx.close();
        } else {
            LOG.info("Login is ok : " + message);
            ctx.fireChannelRead(msg);
        }
    } else
        ctx.fireChannelRead(msg);
}