Example usage for io.netty.channel ChannelFuture cause

List of usage examples for io.netty.channel ChannelFuture cause

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Introduction

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

Prototype

Throwable cause();

Source Link

Document

Returns the cause of the failed I/O operation if the I/O operation has failed.

Usage

From source file:com.alibaba.dubbo.remoting.transport.netty.NettyClient.java

License:Apache License

protected void doConnect() throws Throwable {
    long start = System.currentTimeMillis();
    ChannelFuture future = bootstrap.connect(getConnectAddress());
    try {//w  w w  .j a v  a2 s  .co m
        boolean ret = future.awaitUninterruptibly(3000, TimeUnit.MILLISECONDS);

        if (ret && future.isSuccess()) {
            Channel newChannel = future.channel();
            try {
                // 
                Channel oldChannel = NettyClient.this.channel; // copy reference
                if (oldChannel != null) {
                    try {
                        if (logger.isInfoEnabled()) {
                            logger.info("Close old netty channel " + oldChannel
                                    + " on create new netty channel " + newChannel);
                        }
                        oldChannel.close();
                    } finally {
                        NettyChannel.removeChannelIfDisconnected(oldChannel);
                    }
                }
            } finally {
                if (NettyClient.this.isClosed()) {
                    try {
                        if (logger.isInfoEnabled()) {
                            logger.info(
                                    "Close new netty channel " + newChannel + ", because the client closed.");
                        }
                        newChannel.close();
                    } finally {
                        NettyClient.this.channel = null;
                        NettyChannel.removeChannelIfDisconnected(newChannel);
                    }
                } else {
                    NettyClient.this.channel = newChannel;
                }
            }
        } else if (future.cause() != null) {
            throw new RemotingException(this, "client(url: " + getUrl() + ") failed to connect to server "
                    + getRemoteAddress() + ", error message is:" + future.cause().getMessage(), future.cause());
        } else {
            throw new RemotingException(this,
                    "client(url: " + getUrl() + ") failed to connect to server " + getRemoteAddress()
                            + " client-side timeout " + getConnectTimeout() + "ms (elapsed: "
                            + (System.currentTimeMillis() - start) + "ms) from netty client "
                            + NetUtils.getLocalHost() + " using dubbo version " + Version.getVersion());
        }
    } finally {
        if (!isConnected()) {
            //future.cancel(true);
        }
    }
}

From source file:com.alibaba.dubbo.remoting.transport.netty4.NettyChannel.java

License:Apache License

public void send(Object message, boolean sent) throws RemotingException {
    super.send(message, sent);

    boolean success = true;
    int timeout = 0;
    try {/*w ww  . j av a  2 s  .  c o m*/
        ChannelFuture future = channel.writeAndFlush(message);
        if (sent) {
            timeout = getUrl().getPositiveParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT);
            success = future.await(timeout);
        }
        Throwable cause = future.cause();
        if (cause != null) {
            throw cause;
        }
    } catch (Throwable e) {
        throw new RemotingException(this, "Failed to send message " + message + " to " + getRemoteAddress()
                + ", cause: " + e.getMessage(), e);
    }

    if (!success) {
        throw new RemotingException(this, "Failed to send message " + message + " to " + getRemoteAddress()
                + "in timeout(" + timeout + "ms) limit");
    }
}

From source file:com.alibaba.rocketmq.broker.client.net.Broker2Client.java

License:Apache License

/**
 * BrokerProducer?Oneway//from  www  .  j  ava 2  s  . c  o m
 */
public void checkProducerTransactionState(//
        final Channel channel, //
        final CheckTransactionStateRequestHeader requestHeader, //
        final SelectMapedBufferResult selectMapedBufferResult//
) {
    RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.CHECK_TRANSACTION_STATE,
            requestHeader);
    request.markOnewayRPC();

    try {
        FileRegion fileRegion = new OneMessageTransfer(request.encodeHeader(selectMapedBufferResult.getSize()),
                selectMapedBufferResult);
        channel.writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                selectMapedBufferResult.release();
                if (!future.isSuccess()) {
                    log.error("invokeProducer failed,", future.cause());
                }
            }
        });
    } catch (Throwable e) {
        log.error("invokeProducer exception", e);
        selectMapedBufferResult.release();
    }
}

From source file:com.alibaba.rocketmq.broker.processor.PullMessageProcessor.java

License:Apache License

public void excuteRequestWhenWakeup(final Channel channel, final RemotingCommand request)
        throws RemotingCommandException {
    Runnable run = new Runnable() {
        @Override//from   ww w  . j  a v  a  2 s.c  om
        public void run() {
            try {
                final RemotingCommand response = PullMessageProcessor.this.processRequest(channel, request,
                        false);

                if (response != null) {
                    response.setOpaque(request.getOpaque());
                    response.markResponseType();
                    try {
                        channel.writeAndFlush(response).addListener(new ChannelFutureListener() {
                            @Override
                            public void operationComplete(ChannelFuture future) throws Exception {
                                if (!future.isSuccess()) {
                                    log.error(
                                            "processRequestWrapper response to "
                                                    + future.channel().remoteAddress() + " failed",
                                            future.cause());
                                    log.error(request.toString());
                                    log.error(response.toString());
                                }
                            }
                        });
                    } catch (Throwable e) {
                        log.error("processRequestWrapper process request over, but response failed", e);
                        log.error(request.toString());
                        log.error(response.toString());
                    }
                }
            } catch (RemotingCommandException e1) {
                log.error("excuteRequestWhenWakeup run", e1);
            }
        }
    };

    this.brokerController.getPullMessageExecutor().submit(run);
}

From source file:com.alibaba.rocketmq.broker.processor.PullMessageProcessor.java

License:Apache License

private RemotingCommand processRequest(final Channel channel, RemotingCommand request,
        boolean brokerAllowSuspend) throws RemotingCommandException {
    RemotingCommand response = RemotingCommand.createResponseCommand(PullMessageResponseHeader.class);
    final PullMessageResponseHeader responseHeader = (PullMessageResponseHeader) response.readCustomHeader();
    final PullMessageRequestHeader requestHeader = (PullMessageRequestHeader) request
            .decodeCommandCustomHeader(PullMessageRequestHeader.class);

    // sendfile?/* w  w w  . java2 s  . c  o  m*/
    response.setOpaque(request.getOpaque());
    if (log.isDebugEnabled()) {
        log.debug("receive PullMessage request command, " + request);
    }

    // Broker??
    if (!PermName.isReadable(this.brokerController.getBrokerConfig().getBrokerPermission())) {
        response.setCode(ResponseCode.NO_PERMISSION);
        response.setRemark("the broker[" + this.brokerController.getBrokerConfig().getBrokerIP1()
                + "] pulling message is forbidden");
        return response;
    }

    // ?
    SubscriptionGroupConfig subscriptionGroupConfig = this.brokerController.getSubscriptionGroupManager()
            .findSubscriptionGroupConfig(requestHeader.getConsumerGroup());
    if (null == subscriptionGroupConfig) {
        response.setCode(ResponseCode.SUBSCRIPTION_GROUP_NOT_EXIST);
        response.setRemark("subscription group not exist, " + requestHeader.getConsumerGroup() + " "
                + FAQUrl.suggestTodo(FAQUrl.SUBSCRIPTION_GROUP_NOT_EXIST));
        return response;
    }

    // ???
    if (!subscriptionGroupConfig.isConsumeEnable()) {
        response.setCode(ResponseCode.NO_PERMISSION);
        response.setRemark("subscription group no permission, " + requestHeader.getConsumerGroup());
        return response;
    }

    final boolean hasSuspendFlag = PullSysFlag.hasSuspendFlag(requestHeader.getSysFlag());
    final boolean hasCommitOffsetFlag = PullSysFlag.hasCommitOffsetFlag(requestHeader.getSysFlag());
    final boolean hasSubscriptionFlag = PullSysFlag.hasSubscriptionFlag(requestHeader.getSysFlag());

    final long suspendTimeoutMillisLong = hasSuspendFlag ? requestHeader.getSuspendTimeoutMillis() : 0;

    // topic?
    TopicConfig topicConfig = this.brokerController.getTopicConfigManager()
            .selectTopicConfig(requestHeader.getTopic());
    if (null == topicConfig) {
        log.error("the topic " + requestHeader.getTopic() + " not exist, consumer: "
                + RemotingHelper.parseChannelRemoteAddr(channel));
        response.setCode(ResponseCode.TOPIC_NOT_EXIST);
        response.setRemark("topic[" + requestHeader.getTopic() + "] not exist, apply first please!"
                + FAQUrl.suggestTodo(FAQUrl.APPLY_TOPIC_URL));
        return response;
    }

    // topic??
    if (!PermName.isReadable(topicConfig.getPerm())) {
        response.setCode(ResponseCode.NO_PERMISSION);
        response.setRemark("the topic[" + requestHeader.getTopic() + "] pulling message is forbidden");
        return response;
    }

    // 
    if (requestHeader.getQueueId() < 0 || requestHeader.getQueueId() >= topicConfig.getReadQueueNums()) {
        String errorInfo = "queueId[" + requestHeader.getQueueId() + "] is illagal,Topic :"
                + requestHeader.getTopic() + " topicConfig.readQueueNums: " + topicConfig.getReadQueueNums()
                + " consumer: " + channel.remoteAddress();
        log.warn(errorInfo);
        response.setCode(ResponseCode.SYSTEM_ERROR);
        response.setRemark(errorInfo);
        return response;
    }

    // ?
    SubscriptionData subscriptionData = null;
    if (hasSubscriptionFlag) {
        try {
            subscriptionData = FilterAPI.buildSubscriptionData(requestHeader.getConsumerGroup(),
                    requestHeader.getTopic(), requestHeader.getSubscription());
        } catch (Exception e) {
            log.warn("parse the consumer's subscription[{}] failed, group: {}", requestHeader.getSubscription(), //
                    requestHeader.getConsumerGroup());
            response.setCode(ResponseCode.SUBSCRIPTION_PARSE_FAILED);
            response.setRemark("parse the consumer's subscription failed");
            return response;
        }
    } else {
        ConsumerGroupInfo consumerGroupInfo = this.brokerController.getConsumerManager()
                .getConsumerGroupInfo(requestHeader.getConsumerGroup());
        if (null == consumerGroupInfo) {
            log.warn("the consumer's group info not exist, group: {}", requestHeader.getConsumerGroup());
            response.setCode(ResponseCode.SUBSCRIPTION_NOT_EXIST);
            response.setRemark("the consumer's group info not exist"
                    + FAQUrl.suggestTodo(FAQUrl.SAME_GROUP_DIFFERENT_TOPIC));
            return response;
        }

        if (!subscriptionGroupConfig.isConsumeBroadcastEnable() //
                && consumerGroupInfo.getMessageModel() == MessageModel.BROADCASTING) {
            response.setCode(ResponseCode.NO_PERMISSION);
            response.setRemark("the consumer group[" + requestHeader.getConsumerGroup()
                    + "] can not consume by broadcast way");
            return response;
        }

        subscriptionData = consumerGroupInfo.findSubscriptionData(requestHeader.getTopic());
        if (null == subscriptionData) {
            log.warn("the consumer's subscription not exist, group: {}", requestHeader.getConsumerGroup());
            response.setCode(ResponseCode.SUBSCRIPTION_NOT_EXIST);
            response.setRemark("the consumer's subscription not exist"
                    + FAQUrl.suggestTodo(FAQUrl.SAME_GROUP_DIFFERENT_TOPIC));
            return response;
        }

        // Broker?
        if (subscriptionData.getSubVersion() < requestHeader.getSubVersion()) {
            log.warn("the broker's subscription is not latest, group: {} {}", requestHeader.getConsumerGroup(),
                    subscriptionData.getSubString());
            response.setCode(ResponseCode.SUBSCRIPTION_NOT_LATEST);
            response.setRemark("the consumer's subscription not latest");
            return response;
        }
    }

    final GetMessageResult getMessageResult = this.brokerController.getMessageStore().getMessage(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId(),
            requestHeader.getQueueOffset(), requestHeader.getMaxMsgNums(), subscriptionData);
    if (getMessageResult != null) {
        response.setRemark(getMessageResult.getStatus().name());
        responseHeader.setNextBeginOffset(getMessageResult.getNextBeginOffset());
        responseHeader.setMinOffset(getMessageResult.getMinOffset());
        responseHeader.setMaxOffset(getMessageResult.getMaxOffset());

        // ????
        if (getMessageResult.isSuggestPullingFromSlave()) {
            responseHeader.setSuggestWhichBrokerId(subscriptionGroupConfig.getWhichBrokerWhenConsumeSlowly());
        }
        // ???
        else {
            //responseHeader.setSuggestWhichBrokerId(subscriptionGroupConfig.getWhichBrokerWhenConsumeSlowly());
            responseHeader.setSuggestWhichBrokerId(subscriptionGroupConfig.getBrokerId());
        }

        switch (getMessageResult.getStatus()) {
        case FOUND:
            response.setCode(ResponseCode.SUCCESS);

            // ?????
            if (this.hasConsumeMessageHook()) {
                // hook
                ConsumeMessageContext context = new ConsumeMessageContext();
                context.setConsumerGroup(requestHeader.getConsumerGroup());
                context.setTopic(requestHeader.getTopic());
                context.setClientHost(RemotingHelper.parseChannelRemoteAddr(channel));
                context.setStoreHost(this.brokerController.getBrokerAddr());
                context.setQueueId(requestHeader.getQueueId());

                final SocketAddress storeHost = new InetSocketAddress(
                        brokerController.getBrokerConfig().getBrokerIP1(),
                        brokerController.getNettyServerConfig().getListenPort());
                Map<String, Long> messageIds = this.brokerController.getMessageStore().getMessageIds(
                        requestHeader.getTopic(), requestHeader.getQueueId(), requestHeader.getQueueOffset(),
                        requestHeader.getQueueOffset() + getMessageResult.getMessageCount(), storeHost);
                context.setMessageIds(messageIds);
                context.setBodyLength(
                        getMessageResult.getBufferTotalSize() / getMessageResult.getMessageCount());
                this.executeConsumeMessageHookBefore(context);
            }

            break;
        case MESSAGE_WAS_REMOVING:
            response.setCode(ResponseCode.PULL_RETRY_IMMEDIATELY);
            break;
        // ?Offset?0
        case NO_MATCHED_LOGIC_QUEUE:
        case NO_MESSAGE_IN_QUEUE:
            if (0 != requestHeader.getQueueOffset()) {
                response.setCode(ResponseCode.PULL_OFFSET_MOVED);

                // XXX: warn and notify me
                log.info(
                        "the broker store no queue data, fix the request offset {} to {}, Topic: {} QueueId: {} Consumer Group: {}", //
                        requestHeader.getQueueOffset(), //
                        getMessageResult.getNextBeginOffset(), //
                        requestHeader.getTopic(), //
                        requestHeader.getQueueId(), //
                        requestHeader.getConsumerGroup()//
                );
            } else {
                response.setCode(ResponseCode.PULL_NOT_FOUND);
            }
            break;
        case NO_MATCHED_MESSAGE:
            response.setCode(ResponseCode.PULL_RETRY_IMMEDIATELY);
            break;
        case OFFSET_FOUND_NULL:
            response.setCode(ResponseCode.PULL_NOT_FOUND);
            break;
        case OFFSET_OVERFLOW_BADLY:
            response.setCode(ResponseCode.PULL_OFFSET_MOVED);
            // XXX: warn and notify me
            log.info("the request offset: " + requestHeader.getQueueOffset()
                    + " over flow badly, broker max offset: " + getMessageResult.getMaxOffset() + ", consumer: "
                    + channel.remoteAddress());
            break;
        case OFFSET_OVERFLOW_ONE:
            response.setCode(ResponseCode.PULL_NOT_FOUND);
            break;
        case OFFSET_TOO_SMALL:
            response.setCode(ResponseCode.PULL_OFFSET_MOVED);
            // XXX: warn and notify me
            log.info("the request offset: " + requestHeader.getQueueOffset() + " too small, broker min offset: "
                    + getMessageResult.getMinOffset() + ", consumer: " + channel.remoteAddress());
            break;
        default:
            assert false;
            break;
        }

        switch (response.getCode()) {
        case ResponseCode.SUCCESS:
            // 
            this.brokerController.getBrokerStatsManager().incGroupGetNums(requestHeader.getConsumerGroup(),
                    requestHeader.getTopic(), getMessageResult.getMessageCount());

            this.brokerController.getBrokerStatsManager().incGroupGetSize(requestHeader.getConsumerGroup(),
                    requestHeader.getTopic(), getMessageResult.getBufferTotalSize());

            this.brokerController.getBrokerStatsManager().incBrokerGetNums(getMessageResult.getMessageCount());

            try {
                FileRegion fileRegion = new ManyMessageTransfer(
                        response.encodeHeader(getMessageResult.getBufferTotalSize()), getMessageResult);
                channel.writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        getMessageResult.release();
                        if (!future.isSuccess()) {
                            log.error("transfer many message by pagecache failed, " + channel.remoteAddress(),
                                    future.cause());
                        }
                    }
                });
            } catch (Throwable e) {
                log.error("", e);
                getMessageResult.release();
            }

            response = null;
            break;
        case ResponseCode.PULL_NOT_FOUND:
            // 
            if (brokerAllowSuspend && hasSuspendFlag) {
                long pollingTimeMills = suspendTimeoutMillisLong;
                if (!this.brokerController.getBrokerConfig().isLongPollingEnable()) {
                    pollingTimeMills = this.brokerController.getBrokerConfig().getShortPollingTimeMills();
                }

                PullRequest pullRequest = new PullRequest(request, channel, pollingTimeMills,
                        this.brokerController.getMessageStore().now(), requestHeader.getQueueOffset());
                this.brokerController.getPullRequestHoldService().suspendPullRequest(requestHeader.getTopic(),
                        requestHeader.getQueueId(), pullRequest);
                response = null;
                break;
            }

            // ?Consumer
        case ResponseCode.PULL_RETRY_IMMEDIATELY:
            break;
        case ResponseCode.PULL_OFFSET_MOVED:
            if (this.brokerController.getMessageStoreConfig().getBrokerRole() != BrokerRole.SLAVE
                    || this.brokerController.getBrokerConfig().isOffsetCheckInSlave()) {
                MessageQueue mq = new MessageQueue();
                mq.setTopic(requestHeader.getTopic());
                mq.setQueueId(requestHeader.getQueueId());
                mq.setBrokerName(this.brokerController.getBrokerConfig().getBrokerName());

                OffsetMovedEvent event = new OffsetMovedEvent();
                event.setConsumerGroup(requestHeader.getConsumerGroup());
                event.setMessageQueue(mq);
                event.setOffsetRequest(requestHeader.getQueueOffset());
                event.setOffsetNew(getMessageResult.getNextBeginOffset());
                this.generateOffsetMovedEvent(event);
            } else {
                responseHeader.setSuggestWhichBrokerId(subscriptionGroupConfig.getBrokerId());
                response.setCode(ResponseCode.PULL_RETRY_IMMEDIATELY);
            }

            log.warn("PULL_OFFSET_MOVED:topic={}, groupId={}, clientId={}, offset={}, suggestBrokerId={}",
                    requestHeader.getTopic(), requestHeader.getConsumerGroup(), requestHeader.getQueueOffset(),
                    responseHeader.getSuggestWhichBrokerId());
            break;
        default:
            assert false;
        }
    } else {
        response.setCode(ResponseCode.SYSTEM_ERROR);
        response.setRemark("store getMessage return null");
    }

    // Consumer
    boolean storeOffsetEnable = brokerAllowSuspend; // 
    storeOffsetEnable = storeOffsetEnable && hasCommitOffsetFlag; // Consumer?
    storeOffsetEnable = storeOffsetEnable // ?Master?offset
            && this.brokerController.getMessageStoreConfig().getBrokerRole() != BrokerRole.SLAVE;
    if (storeOffsetEnable) {
        this.brokerController.getConsumerOffsetManager().commitOffset(requestHeader.getConsumerGroup(),
                requestHeader.getTopic(), requestHeader.getQueueId(), requestHeader.getCommitOffset());
    }

    return response;
}

From source file:com.alibaba.rocketmq.broker.processor.QueryMessageProcessor.java

License:Apache License

public RemotingCommand queryMessage(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(QueryMessageResponseHeader.class);
    final QueryMessageResponseHeader responseHeader = (QueryMessageResponseHeader) response.readCustomHeader();
    final QueryMessageRequestHeader requestHeader = (QueryMessageRequestHeader) request
            .decodeCommandCustomHeader(QueryMessageRequestHeader.class);

    // sendfile?//from w  w  w.ja  v a2 s .  c o m
    response.setOpaque(request.getOpaque());

    final QueryMessageResult queryMessageResult = this.brokerController.getMessageStore().queryMessage(
            requestHeader.getTopic(), requestHeader.getKey(), requestHeader.getMaxNum(),
            requestHeader.getBeginTimestamp(), requestHeader.getEndTimestamp());
    assert queryMessageResult != null;

    responseHeader.setIndexLastUpdatePhyoffset(queryMessageResult.getIndexLastUpdatePhyoffset());
    responseHeader.setIndexLastUpdateTimestamp(queryMessageResult.getIndexLastUpdateTimestamp());

    // ?
    if (queryMessageResult.getBufferTotalSize() > 0) {
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);

        try {
            FileRegion fileRegion = new QueryMessageTransfer(
                    response.encodeHeader(queryMessageResult.getBufferTotalSize()), queryMessageResult);
            ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    queryMessageResult.release();
                    if (!future.isSuccess()) {
                        log.error("transfer query message by pagecache failed, ", future.cause());
                    }
                }
            });
        } catch (Throwable e) {
            log.error("", e);
            queryMessageResult.release();
        }

        return null;
    }

    response.setCode(ResponseCode.QUERY_NOT_FOUND);
    response.setRemark("can not find message, maybe time range not correct");
    return response;
}

From source file:com.alibaba.rocketmq.broker.processor.QueryMessageProcessor.java

License:Apache License

public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader = (ViewMessageRequestHeader) request
            .decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    // sendfile?/* w  ww .  j a va2s . com*/
    response.setOpaque(request.getOpaque());

    final SelectMapedBufferResult selectMapedBufferResult = this.brokerController.getMessageStore()
            .selectOneMessageByOffset(requestHeader.getOffset());
    if (selectMapedBufferResult != null) {
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);

        try {
            FileRegion fileRegion = new OneMessageTransfer(
                    response.encodeHeader(selectMapedBufferResult.getSize()), selectMapedBufferResult);
            ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    selectMapedBufferResult.release();
                    if (!future.isSuccess()) {
                        log.error("transfer one message by pagecache failed, ", future.cause());
                    }
                }
            });
        } catch (Throwable e) {
            log.error("", e);
            selectMapedBufferResult.release();
        }

        return null;
    } else {
        response.setCode(ResponseCode.SYSTEM_ERROR);
        response.setRemark("can not find message by the offset, " + requestHeader.getOffset());
    }

    return response;
}

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

License:Apache License

private void returnResponse(final String group, final String topic, ChannelHandlerContext ctx,
        final RemotingCommand response, final List<MessageExt> msgList) {
    if (null != msgList) {
        ByteBuffer[] msgBufferList = new ByteBuffer[msgList.size()];
        int bodyTotalSize = 0;
        for (int i = 0; i < msgList.size(); i++) {
            try {
                msgBufferList[i] = messageToByteBuffer(msgList.get(i));
                bodyTotalSize += msgBufferList[i].capacity();
            } catch (Exception e) {
                log.error("messageToByteBuffer UnsupportedEncodingException", e);
            }//ww  w  .  j  a  va2  s .c  om
        }

        ByteBuffer body = ByteBuffer.allocate(bodyTotalSize);
        for (ByteBuffer bb : msgBufferList) {
            bb.flip();
            body.put(bb);
        }

        response.setBody(body.array());

        // 
        this.filtersrvController.getFilterServerStatsManager().incGroupGetNums(group, topic, msgList.size());

        this.filtersrvController.getFilterServerStatsManager().incGroupGetSize(group, topic, bodyTotalSize);
    }

    try {
        ctx.writeAndFlush(response).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (!future.isSuccess()) {
                    log.error("FilterServer response to " + future.channel().remoteAddress() + " failed",
                            future.cause());
                    log.error(response.toString());
                }
            }
        });
    } catch (Throwable e) {
        log.error("FilterServer process request over, but response failed", e);
        log.error(response.toString());
    }
}

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

License:Apache License

public RemotingCommand invokeSyncImpl(final Channel channel, final RemotingCommand request,
        final long timeoutMillis)
        throws InterruptedException, RemotingSendRequestException, RemotingTimeoutException {
    try {// w  w w.  java  2 s.  c om
        final ResponseFuture responseFuture = new ResponseFuture(request.getOpaque(), timeoutMillis, null,
                null);
        this.responseTable.put(request.getOpaque(), responseFuture);
        channel.writeAndFlush(request).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture f) throws Exception {
                if (f.isSuccess()) {
                    responseFuture.setSendRequestOK(true);
                    return;
                } else {
                    responseFuture.setSendRequestOK(false);
                }

                responseTable.remove(request.getOpaque());
                responseFuture.setCause(f.cause());
                responseFuture.putResponse(null);
                plog.warn("send a request command to channel <" + channel.remoteAddress() + "> failed.");
                plog.warn(request.toString());
            }
        });

        RemotingCommand responseCommand = responseFuture.waitResponse(timeoutMillis);
        if (null == responseCommand) {
            if (responseFuture.isSendRequestOK()) {
                throw new RemotingTimeoutException(RemotingHelper.parseChannelRemoteAddr(channel),
                        timeoutMillis, responseFuture.getCause());
            } else {
                throw new RemotingSendRequestException(RemotingHelper.parseChannelRemoteAddr(channel),
                        responseFuture.getCause());
            }
        }

        return responseCommand;
    } finally {
        this.responseTable.remove(request.getOpaque());
    }
}

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

License:Apache License

private Channel createChannel(final String addr) throws InterruptedException {
    ChannelWrapper cw = this.channelTables.get(addr);
    if (cw != null && cw.isOK()) {
        return cw.getChannel();
    }//from   ww  w. jav  a 2 s .c  om

    // ????
    if (this.lockChannelTables.tryLock(LockTimeoutMillis, TimeUnit.MILLISECONDS)) {
        try {
            boolean createNewConnection = false;
            cw = this.channelTables.get(addr);
            if (cw != null) {
                // channel
                if (cw.isOK()) {
                    return cw.getChannel();
                }
                // ?
                else if (!cw.getChannelFuture().isDone()) {
                    createNewConnection = false;
                }
                // ??
                else {
                    this.channelTables.remove(addr);
                    createNewConnection = true;
                }
            }
            // ChannelWrapper?
            else {
                createNewConnection = true;
            }

            if (createNewConnection) {
                ChannelFuture channelFuture = this.bootstrap.connect(RemotingHelper.string2SocketAddress(addr));
                log.info("createChannel: begin to connect remote host[{}] asynchronously", addr);
                cw = new ChannelWrapper(channelFuture);
                this.channelTables.put(addr, cw);
            }
        } catch (Exception e) {
            log.error("createChannel: create channel exception", e);
        } finally {
            this.lockChannelTables.unlock();
        }
    } else {
        log.warn("createChannel: try to lock channel table, but timeout, {}ms", LockTimeoutMillis);
    }

    if (cw != null) {
        ChannelFuture channelFuture = cw.getChannelFuture();
        if (channelFuture.awaitUninterruptibly(this.nettyClientConfig.getConnectTimeoutMillis())) {
            if (cw.isOK()) {
                log.info("createChannel: connect remote host[{}] success, {}", addr, channelFuture.toString());
                return cw.getChannel();
            } else {
                if (log.isDebugEnabled())
                    log.debug("createChannel: connect remote host[" + addr + "] failed, "
                            + channelFuture.toString(), channelFuture.cause());
                else
                    log.warn("createChannel: connect remote host[" + addr + "] failed, "
                            + channelFuture.toString());
            }
        } else {
            log.warn("createChannel: connect remote host[{}] timeout {}ms, {}", addr,
                    this.nettyClientConfig.getConnectTimeoutMillis(), channelFuture.toString());
        }
    }

    return null;
}