Examples with ChannelHandlerContext org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext used on opensource projects

Example 66 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project web3sdk by FISCO-BCOS.

the class ChannelConnections method reconnect.

public void reconnect() {
    for (Entry<String, ChannelHandlerContext> ctx : networkConnections.entrySet()) {
        if (ctx.getValue() == null || !ctx.getValue().channel().isActive()) {
            String[] split = ctx.getKey().split(":");
            String host = split[0];
            Integer port = Integer.parseInt(split[1]);
            logger.debug("尝试连接到: {}:{}", host, port);
            bootstrap.connect(host, port);
        } else {
            logger.trace("发送心跳至 {}", ctx.getKey());
            // 连接还在，发送心跳
            EthereumMessage ethereumMessage = new EthereumMessage();
            ethereumMessage.setSeq(UUID.randomUUID().toString().replaceAll("-", ""));
            ethereumMessage.setResult(0);
            ethereumMessage.setType((short) 0x13);
            ethereumMessage.setData("0".getBytes());
            ByteBuf out = ctx.getValue().alloc().buffer();
            ethereumMessage.writeHeader(out);
            ethereumMessage.writeExtra(out);
            ctx.getValue().writeAndFlush(out);
        }
    }
}

Example 67 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project web3sdk by FISCO-BCOS.

the class ChannelHandler method channelRead.

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    String host = ((SocketChannel) ctx.channel()).remoteAddress().getAddress().getHostAddress();
    Integer port = ((SocketChannel) ctx.channel()).remoteAddress().getPort();
    final ChannelHandlerContext ctxF = ctx;
    final ByteBuf in = (ByteBuf) msg;
    logger.trace("接收消息，来自" + host + ":" + port + " in:" + in.readableBytes());
    logger.trace("threadPool:{}", threadPool == null);
    try {
        if (threadPool == null) {
            connections.onReceiveMessage(ctx, in);
        } else {
            threadPool.execute(new Runnable() {

                @Override
                public void run() {
                    connections.onReceiveMessage(ctxF, in);
                }
            });
        }
    } catch (RejectedExecutionException e) {
        logger.error("线程池已满，拒绝请求", e);
    }
}

Example 68 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project web3sdk by FISCO-BCOS.

the class ChannelHandler method channelActive.

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
    try {
        // 已连上，获取ip信息
        String host = ((SocketChannel) ctx.channel()).remoteAddress().getAddress().getHostAddress();
        Integer port = ((SocketChannel) ctx.channel()).remoteAddress().getPort();
        logger.debug("已成功连接[" + host + "]:[" + String.valueOf(port) + "]," + String.valueOf(ctx.channel().isActive()));
        if (isServer) {
            logger.debug("server接收新连接: {}:{}", host, port);
            // 将此新连接增加到connections
            ConnectionInfo info = new ConnectionInfo();
            info.setHost(host);
            info.setPort(port);
            connections.getConnections().add(info);
            connections.setNetworkConnectionByHost(info.getHost(), info.getPort(), ctx);
            connections.getCallback().onConnect(ctx);
        } else {
            // 更新ctx信息
            ChannelHandlerContext connection = connections.getNetworkConnectionByHost(host, port);
            if (connection != null && connection.channel().isActive()) {
                logger.debug("连接已存在且有效 关闭重连: {}:{}", host, port);
                ctx.channel().disconnect();
                ctx.channel().close();
            } else {
                logger.debug("client成功连接 {}:{}", host, port);
                connections.setNetworkConnectionByHost(host, port, ctx);
                connections.getCallback().onConnect(ctx);
            }
        }
    } catch (Exception e) {
        logger.error("系统错误", e);
    }
}

Example 69 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project web3sdk by FISCO-BCOS.

the class ConnectionPair method retrySendRemoteMessage.

public void retrySendRemoteMessage() {
    Integer errorCode = 0;
    try {
        // 选取客户端节点
        logger.debug("远端节点数:{}", remoteConnectionInfos.size());
        remoteConnectionInfo = null;
        if (remoteConnectionInfos.size() > 0) {
            Random random = new Random();
            Integer index = random.nextInt(remoteConnectionInfos.size());
            logger.debug("选取:{}", index);
            remoteConnectionInfo = remoteConnectionInfos.get(index);
            remoteConnectionInfos.remove(remoteConnectionInfos.get(index));
        }
        if (remoteConnectionInfo == null) {
            // 所有节点已尝试，无法再重试了
            logger.error("发送消息失败，所有重试均失败");
            errorCode = 99;
            throw new Exception("发送消息失败，所有重试均失败");
        }
        ChannelHandlerContext ctx = remoteChannelConnections.getNetworkConnectionByHost(remoteConnectionInfo.getHost(), remoteConnectionInfo.getPort());
        remoteConnection = ctx;
        if (ctx != null && ctx.channel().isActive()) {
            ByteBuf out = ctx.alloc().buffer();
            message.writeHeader(out);
            message.writeExtra(out);
            ctx.writeAndFlush(out);
            logger.debug("发送消息至  " + remoteConnectionInfo.getHost() + ":" + String.valueOf(remoteConnectionInfo.getPort()) + " 成功");
        } else {
            logger.error("发送节点不可用");
            retrySendRemoteMessage();
        }
    } catch (Exception e) {
        logger.error("发送消息异常", e);
        ChannelResponse response = new ChannelResponse();
        response.setErrorCode(errorCode);
        response.setErrorMessage(e.getMessage());
        // 找不到连接，错误
        logger.error("发送连接异常，返回错误99");
        if (message.getType() == 0x20 || message.getType() == 0x21) {
            message.setType((short) 0x21);
        } else if (message.getType() == 0x30 || message.getType() == 0x31) {
            message.setType((short) 0x31);
        } else {
        // ethereum消息，不用改类型
        }
        message.setResult(99);
        ByteBuf out = localConnection.alloc().buffer();
        message.writeHeader(out);
        message.writeExtra(out);
        localConnection.writeAndFlush(out);
        // 彻底失败后，删掉这个seq
        if (message.getSeq() != null) {
            server.getSeq2Connections().remove(message.getSeq());
        }
        if (timeout != null) {
            timeout.cancel();
        }
        return;
    }
}

Example 70 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project web3sdk by FISCO-BCOS.

the class Server method onLocalMessage.

public void onLocalMessage(ChannelHandlerContext ctx, Message message) {
    try {
        logger.debug("处理来自SDK请求: " + message.getSeq());
        ChannelHandlerContext remoteCtx = null;
        ConnectionPair pair = seq2Connections.get(message.getSeq());
        if (pair != null) {
            // 已有这个seq，发往远端的响应
            logger.debug("已有seq");
            // 发送到远端的响应
            remoteCtx = pair.remoteConnection;
            if (message.getType() != 0x31) {
                pair.localConnection = ctx;
            }
            ByteBuf out = remoteCtx.alloc().buffer();
            message.writeHeader(out);
            message.writeExtra(out);
            logger.debug("消息发送至:{}:{}", ((SocketChannel) remoteCtx.channel()).remoteAddress().getAddress().getHostAddress(), ((SocketChannel) remoteCtx.channel()).remoteAddress().getPort());
            remoteCtx.writeAndFlush(out);
        } else {
            pair = new ConnectionPair();
            pair.localConnection = ctx;
            pair.setServer(this);
            pair.setMessage(message);
            // 本地发往远程的消息，如果是链上链下，需要按给定的nodeID发
            if (message.getType() == 0x20 || message.getType() == 0x21) {
                // 获取nodeID
                logger.debug("链上链下消息一期 指定目的地");
                if (message.getData().length < 256) {
                    logger.error("错误的channel消息 长度不足256:{}", message.getData().length);
                }
                // 获取nodeID对应的连接，检查可用性
                String nodeID = new String(message.getData(), 128, 128);
                logger.debug("转发至:{}", nodeID, message.getData());
                for (ConnectionInfo conn : remoteConnections.getConnections()) {
                    if (conn.getNodeID().equals(nodeID)) {
                        remoteCtx = remoteConnections.getNetworkConnectionByHost(conn.getHost(), conn.getPort());
                        pair.remoteConnection = remoteCtx;
                        break;
                    }
                }
                if (remoteCtx == null || !remoteCtx.channel().isActive()) {
                    // 找不到连接，错误
                    logger.error("发送连接异常，返回错误99");
                    if (message.getType() == 0x20 || message.getType() == 0x21) {
                        message.setType((short) 0x21);
                    } else {
                        message.setType((short) 0x31);
                    }
                    message.setResult(99);
                    ByteBuf out = ctx.alloc().buffer();
                    message.writeHeader(out);
                    message.writeExtra(out);
                    ctx.writeAndFlush(out);
                    return;
                }
                ByteBuf out = remoteCtx.alloc().buffer();
                message.writeHeader(out);
                message.writeExtra(out);
                logger.debug("消息发送至:{}:{}", ((SocketChannel) remoteCtx.channel()).remoteAddress().getAddress().getHostAddress(), ((SocketChannel) remoteCtx.channel()).remoteAddress().getPort());
                remoteCtx.writeAndFlush(out);
                pair.init();
            } else {
                logger.debug("其它消息，使用ConnectionPair逻辑");
                pair.setRemoteChannelConnections(remoteConnections);
                List<ConnectionInfo> remoteConnectionInfos = new ArrayList<ConnectionInfo>();
                remoteConnectionInfos.addAll(remoteConnections.getConnections());
                pair.setRemoteConnectionInfos(remoteConnectionInfos);
                seq2Connections.put(message.getSeq(), pair);
                pair.init();
                pair.retrySendRemoteMessage();
            }
        }
    } catch (Exception e) {
        logger.error("系统错误", e);
    }
}