Example usage for io.netty.channel ChannelHandlerContext channel

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

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Introduction

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

Prototype

Channel channel();

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Document

Return the Channel which is bound to the ChannelHandlerContext .

Usage

From source file:com.alibaba.rocketmq.example.tmp.ClientRemotingProcessor.java

License:Apache License

/**
 * Oneway/*ww w.  j av  a2s  .  co  m*/
 */
public static RemotingCommand checkTransactionState(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final CheckTransactionStateRequestHeader requestHeader = (CheckTransactionStateRequestHeader) request
            .decodeCommandCustomHeader(CheckTransactionStateRequestHeader.class);
    final ByteBuffer byteBuffer = ByteBuffer.wrap(request.getBody());
    final MessageExt messageExt = MessageDecoder.decode(byteBuffer);
    if (messageExt != null) {
        final String group = messageExt.getProperty(MessageConst.PROPERTY_PRODUCER_GROUP);
        if (group != null) {
            MQProducerInner producer = mqClientFactory.selectProducer(group);
            if (producer != null) {
                final String addr = RemotingHelper.parseChannelRemoteAddr(ctx.channel());
                producer.checkTransactionState(addr, messageExt, requestHeader);
            } else {
                log.debug("checkTransactionState, pick producer by group[{}] failed", group);
            }
        } else {
            log.warn("checkTransactionState, pick producer group failed");
        }
    } else {
        log.warn("checkTransactionState, decode message failed");
    }

    return null;
}

From source file:com.alibaba.rocketmq.example.tmp.ClientRemotingProcessor.java

License:Apache License

/**
 * Oneway/* www. j a v  a 2  s.  c o  m*/
 */
public static RemotingCommand notifyConsumerIdsChanged(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    try {
        final NotifyConsumerIdsChangedRequestHeader requestHeader = (NotifyConsumerIdsChangedRequestHeader) request
                .decodeCommandCustomHeader(NotifyConsumerIdsChangedRequestHeader.class);
        log.info("receive broker's notification[{}], the consumer group: {} changed, rebalance immediately", //
                RemotingHelper.parseChannelRemoteAddr(ctx.channel()), //
                requestHeader.getConsumerGroup());
        mqClientFactory.rebalanceImmediately();
    } catch (Exception e) {
        log.error("notifyConsumerIdsChanged exception", RemotingHelper.exceptionSimpleDesc(e));
    }
    return null;
}

From source file:com.alibaba.rocketmq.example.tmp.ClientRemotingProcessor.java

License:Apache License

/**
 * ? offset oneWay/*from ww  w.j a v  a2s  .  c om*/
 */
public static RemotingCommand resetOffset(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final ResetOffsetRequestHeader requestHeader = (ResetOffsetRequestHeader) request
            .decodeCommandCustomHeader(ResetOffsetRequestHeader.class);
    log.info("invoke reset offset operation from broker. brokerAddr={}, topic={}, group={}, timestamp={}",
            new Object[] { RemotingHelper.parseChannelRemoteAddr(ctx.channel()), requestHeader.getTopic(),
                    requestHeader.getGroup(), requestHeader.getTimestamp() });
    Map<MessageQueue, Long> offsetTable = new HashMap<MessageQueue, Long>();
    if (request.getBody() != null) {
        ResetOffsetBody body = ResetOffsetBody.decode(request.getBody(), ResetOffsetBody.class);
        offsetTable = body.getOffsetTable();
    }
    mqClientFactory.resetOffset(requestHeader.getTopic(), requestHeader.getGroup(), offsetTable);
    return null;
}

From source file:com.alibaba.rocketmq.filtersrv.processor.DefaultRequestProcessor.java

License:Apache License

@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx, RemotingCommand request) throws Exception {
    if (log.isDebugEnabled()) {
        log.debug("receive request, {} {} {}", //
                request.getCode(), //
                RemotingHelper.parseChannelRemoteAddr(ctx.channel()), //
                request);//from   w  w w .j av a2  s  .  c o  m
    }

    switch (request.getCode()) {
    case RequestCode.REGISTER_MESSAGE_FILTER_CLASS:
        return registerMessageFilterClass(ctx, request);
    case RequestCode.PULL_MESSAGE:
        return pullMessageForward(ctx, request);
    }

    return null;
}

From source file:com.alibaba.rocketmq.namesrv.processor.DefaultRequestProcessor.java

License:Apache License

@Override
public RemotingCommand processRequest(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    if (log.isDebugEnabled()) {
        log.debug("receive request, {} {} {}", //
                request.getCode(), //
                RemotingHelper.parseChannelRemoteAddr(ctx.channel()), //
                request);//from   w  w w .j av  a 2  s .co m
    }

    switch (request.getCode()) {
    case RequestCode.PUT_KV_CONFIG:
        return this.putKVConfig(ctx, request);
    case RequestCode.GET_KV_CONFIG:
        return this.getKVConfig(ctx, request);
    case RequestCode.DELETE_KV_CONFIG:
        return this.deleteKVConfig(ctx, request);
    case RequestCode.REGISTER_BROKER:
        Version brokerVersion = MQVersion.value2Version(request.getVersion());
        // Broker?Filter Server
        if (brokerVersion.ordinal() >= MQVersion.Version.V3_0_11.ordinal()) {
            return this.registerBrokerWithFilterServer(ctx, request);
        }
        // Broker??Filter Server
        else {
            return this.registerBroker(ctx, request);
        }
    case RequestCode.UNREGISTER_BROKER:
        return this.unregisterBroker(ctx, request);
    case RequestCode.GET_ROUTEINTO_BY_TOPIC:
        return this.getRouteInfoByTopic(ctx, request);
    case RequestCode.GET_BROKER_CLUSTER_INFO:
        return this.getBrokerClusterInfo(ctx, request);
    case RequestCode.WIPE_WRITE_PERM_OF_BROKER:
        return this.wipeWritePermOfBroker(ctx, request);
    case RequestCode.GET_ALL_TOPIC_LIST_FROM_NAMESERVER:
        return getAllTopicListFromNameserver(ctx, request);
    case RequestCode.DELETE_TOPIC_IN_NAMESRV:
        return deleteTopicInNamesrv(ctx, request);
    case RequestCode.GET_KV_CONFIG_BY_VALUE:
        return getKVConfigByValue(ctx, request);
    case RequestCode.DELETE_KV_CONFIG_BY_VALUE:
        return deleteKVConfigByValue(ctx, request);
    case RequestCode.GET_KVLIST_BY_NAMESPACE:
        return this.getKVListByNamespace(ctx, request);
    case RequestCode.GET_TOPICS_BY_CLUSTER:
        return this.getTopicsByCluster(ctx, request);
    case RequestCode.GET_SYSTEM_TOPIC_LIST_FROM_NS:
        return this.getSystemTopicListFromNs(ctx, request);
    case RequestCode.GET_UNIT_TOPIC_LIST:
        return this.getUnitTopicList(ctx, request);
    case RequestCode.GET_HAS_UNIT_SUB_TOPIC_LIST:
        return this.getHasUnitSubTopicList(ctx, request);
    case RequestCode.GET_HAS_UNIT_SUB_UNUNIT_TOPIC_LIST:
        return this.getHasUnitSubUnUnitTopicList(ctx, request);
    default:
        break;
    }
    return null;
}

From source file:com.alibaba.rocketmq.namesrv.processor.DefaultRequestProcessor.java

License:Apache License

public RemotingCommand registerBrokerWithFilterServer(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(RegisterBrokerResponseHeader.class);
    final RegisterBrokerResponseHeader responseHeader = (RegisterBrokerResponseHeader) response
            .readCustomHeader();/*from ww w. ja v  a 2s.c o m*/
    final RegisterBrokerRequestHeader requestHeader = (RegisterBrokerRequestHeader) request
            .decodeCommandCustomHeader(RegisterBrokerRequestHeader.class);

    RegisterBrokerBody registerBrokerBody = new RegisterBrokerBody();

    if (request.getBody() != null) {
        registerBrokerBody = RegisterBrokerBody.decode(request.getBody(), RegisterBrokerBody.class);
    } else {
        registerBrokerBody.getTopicConfigSerializeWrapper().getDataVersion().setCounter(new AtomicLong(0));
        registerBrokerBody.getTopicConfigSerializeWrapper().getDataVersion().setTimestatmp(0);
    }

    RegisterBrokerResult result = this.namesrvController.getRouteInfoManager().registerBroker(//
            requestHeader.getClusterName(), // 1
            requestHeader.getBrokerAddr(), // 2
            requestHeader.getBrokerName(), // 3
            requestHeader.getBrokerId(), // 4
            requestHeader.getHaServerAddr(), // 5
            registerBrokerBody.getTopicConfigSerializeWrapper(), // 6
            registerBrokerBody.getFilterServerList(), //
            ctx.channel()// 7
    );

    responseHeader.setHaServerAddr(result.getHaServerAddr());
    responseHeader.setMasterAddr(result.getMasterAddr());

    // ??? topic 
    byte[] jsonValue = this.namesrvController.getKvConfigManager()
            .getKVListByNamespace(NamesrvUtil.NAMESPACE_ORDER_TOPIC_CONFIG);
    response.setBody(jsonValue);

    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}

From source file:com.alibaba.rocketmq.namesrv.processor.DefaultRequestProcessor.java

License:Apache License

private RemotingCommand wipeWritePermOfBroker(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand
            .createResponseCommand(WipeWritePermOfBrokerResponseHeader.class);
    final WipeWritePermOfBrokerResponseHeader responseHeader = (WipeWritePermOfBrokerResponseHeader) response
            .readCustomHeader();/*from   ww  w . j  av  a  2s.  c o m*/
    final WipeWritePermOfBrokerRequestHeader requestHeader = (WipeWritePermOfBrokerRequestHeader) request
            .decodeCommandCustomHeader(WipeWritePermOfBrokerRequestHeader.class);

    int wipeTopicCnt = this.namesrvController.getRouteInfoManager()
            .wipeWritePermOfBrokerByLock(requestHeader.getBrokerName());

    log.info("wipe write perm of broker[{}], client: {}, {}", //
            requestHeader.getBrokerName(), //
            RemotingHelper.parseChannelRemoteAddr(ctx.channel()), //
            wipeTopicCnt);

    responseHeader.setWipeTopicCount(wipeTopicCnt);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}

From source file:com.alibaba.rocketmq.namesrv.processor.DefaultRequestProcessor.java

License:Apache License

public RemotingCommand registerBroker(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(RegisterBrokerResponseHeader.class);
    final RegisterBrokerResponseHeader responseHeader = (RegisterBrokerResponseHeader) response
            .readCustomHeader();/*  w ww .ja  v a2s  .com*/
    final RegisterBrokerRequestHeader requestHeader = (RegisterBrokerRequestHeader) request
            .decodeCommandCustomHeader(RegisterBrokerRequestHeader.class);

    TopicConfigSerializeWrapper topicConfigWrapper = null;
    if (request.getBody() != null) {
        topicConfigWrapper = TopicConfigSerializeWrapper.decode(request.getBody(),
                TopicConfigSerializeWrapper.class);
    } else {
        topicConfigWrapper = new TopicConfigSerializeWrapper();
        topicConfigWrapper.getDataVersion().setCounter(new AtomicLong(0));
        topicConfigWrapper.getDataVersion().setTimestatmp(0);
    }

    RegisterBrokerResult result = this.namesrvController.getRouteInfoManager().registerBroker(//
            requestHeader.getClusterName(), // 1
            requestHeader.getBrokerAddr(), // 2
            requestHeader.getBrokerName(), // 3
            requestHeader.getBrokerId(), // 4
            requestHeader.getHaServerAddr(), // 5
            topicConfigWrapper, // 6
            null, //
            ctx.channel()// 7
    );

    responseHeader.setHaServerAddr(result.getHaServerAddr());
    responseHeader.setMasterAddr(result.getMasterAddr());

    // ??? topic 
    byte[] jsonValue = this.namesrvController.getKvConfigManager()
            .getKVListByNamespace(NamesrvUtil.NAMESPACE_ORDER_TOPIC_CONFIG);
    response.setBody(jsonValue);
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);
    return response;
}

From source file:com.alibaba.rocketmq.remoting.netty.NettyDecoder.java

License:Apache License

@Override
public Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    ByteBuf frame = null;// www. ja  v  a2  s  .  com
    try {
        frame = (ByteBuf) super.decode(ctx, in);
        if (null == frame) {
            return null;
        }

        ByteBuffer byteBuffer = frame.nioBuffer();

        return RemotingCommand.decode(byteBuffer);
    } catch (Exception e) {
        log.error("decode exception, " + RemotingHelper.parseChannelRemoteAddr(ctx.channel()), e);
        RemotingUtil.closeChannel(ctx.channel());
    } finally {
        if (null != frame) {
            frame.release();
        }
    }

    return null;
}

From source file:com.alibaba.rocketmq.remoting.netty.NettyEncoder.java

License:Apache License

@Override
public void encode(ChannelHandlerContext ctx, RemotingCommand remotingCommand, ByteBuf out) throws Exception {
    try {//  ww  w.  j ava 2 s. co m
        ByteBuffer header = remotingCommand.encodeHeader();
        out.writeBytes(header);
        byte[] body = remotingCommand.getBody();
        if (body != null) {
            out.writeBytes(body);
        }
    } catch (Exception e) {
        log.error("encode exception, " + RemotingHelper.parseChannelRemoteAddr(ctx.channel()), e);
        if (remotingCommand != null) {
            log.error(remotingCommand.toString());
        }
        RemotingUtil.closeChannel(ctx.channel());
    }
}