com.alibaba.rocketmq.client.impl.FindBrokerResult Java Examples

The following examples show how to use com.alibaba.rocketmq.client.impl.FindBrokerResult. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: RemoteBrokerOffsetStore.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

6 votes

private long fetchConsumeOffsetFromBroker(MessageQueue mq) throws RemotingException, MQBrokerException,
        InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        QueryConsumerOffsetRequestHeader requestHeader = new QueryConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());

        return this.mQClientFactory.getMQClientAPIImpl().queryConsumerOffset(
                findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    } else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #2

Source File: RebalanceImpl.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

6 votes

public void unlock(final MessageQueue mq, final boolean oneway) {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(),
                    requestBody, 1000, oneway);
            log.warn("unlock messageQueue. group:{}, clientId:{}, mq:{}",//
                    this.consumerGroup, //
                    this.mQClientFactory.getClientId(), //
                    mq);
        } catch (Exception e) {
            log.error("unlockBatchMQ exception, " + mq, e);
        }
    }
}

Example #3

Source File: RebalanceImpl.java From RocketMQ-Master-analyze with Apache License 2.0

6 votes

public void unlock(final MessageQueue mq, final boolean oneway) {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(),
                requestBody, 1000, oneway);
            log.warn("unlock messageQueue. group:{}, clientId:{}, mq:{}", //
                this.consumerGroup, //
                this.mQClientFactory.getClientId(), //
                mq);
        }
        catch (Exception e) {
            log.error("unlockBatchMQ exception, " + mq, e);
        }
    }
}

Example #4

Source File: RemoteBrokerOffsetStore.java From rocketmq with Apache License 2.0

6 votes

/**
 * Update the Consumer Offset, once the Master is off, updated to Slave,
 * here need to be optimized.
 */
private void updateConsumeOffsetToBroker(MessageQueue mq, long offset) throws RemotingException,
        MQBrokerException, InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        UpdateConsumerOffsetRequestHeader requestHeader = new UpdateConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setCommitOffset(offset);

        this.mQClientFactory.getMQClientAPIImpl().updateConsumerOffsetOneway(
                findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    } else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #5

Source File: RemoteBrokerOffsetStore.java From rocketmq with Apache License 2.0

6 votes

private long fetchConsumeOffsetFromBroker(MessageQueue mq) throws RemotingException, MQBrokerException,
        InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        QueryConsumerOffsetRequestHeader requestHeader = new QueryConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());

        return this.mQClientFactory.getMQClientAPIImpl().queryConsumerOffset(
                findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    } else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #6

Source File: RebalanceImpl.java From rocketmq with Apache License 2.0

6 votes

public void unlock(final MessageQueue mq, final boolean oneway) {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(), requestBody, 1000, oneway);
            log.warn("unlock messageQueue. group:{}, clientId:{}, mq:{}", //
                    this.consumerGroup, //
                    this.mQClientFactory.getClientId(), //
                    mq);
        } catch (Exception e) {
            log.error("unlockBatchMQ exception, " + mq, e);
        }
    }
}

Example #7

Source File: RemoteBrokerOffsetStore.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

6 votes

/**
 * Update the Consumer Offset, once the Master is off, updated to Slave,
 * here need to be optimized.
 */
private void updateConsumeOffsetToBroker(MessageQueue mq, long offset) throws RemotingException,
        MQBrokerException, InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        UpdateConsumerOffsetRequestHeader requestHeader = new UpdateConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setCommitOffset(offset);

        this.mQClientFactory.getMQClientAPIImpl().updateConsumerOffsetOneway(
                findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    } else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #8

Source File: RemoteBrokerOffsetStore.java From RocketMQ-Master-analyze with Apache License 2.0

6 votes

private long fetchConsumeOffsetFromBroker(MessageQueue mq)
        throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        QueryConsumerOffsetRequestHeader requestHeader = new QueryConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());

        return this.mQClientFactory.getMQClientAPIImpl()
            .queryConsumerOffset(findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    }
    else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #9

Source File: RemoteBrokerOffsetStore.java From RocketMQ-Master-analyze with Apache License 2.0

6 votes

/**
 * Update the Consumer Offset, once the Master is off, updated to Slave,
 * here need to be optimized.
 */
private void updateConsumeOffsetToBroker(MessageQueue mq, long offset)
        throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    if (null == findBrokerResult) {
        // TODO Here may be heavily overhead for Name Server,need tuning
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInAdmin(mq.getBrokerName());
    }

    if (findBrokerResult != null) {
        UpdateConsumerOffsetRequestHeader requestHeader = new UpdateConsumerOffsetRequestHeader();
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setConsumerGroup(this.groupName);
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setCommitOffset(offset);

        this.mQClientFactory.getMQClientAPIImpl()
            .updateConsumerOffsetOneway(findBrokerResult.getBrokerAddr(), requestHeader, 1000 * 5);
    }
    else {
        throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
    }
}

Example #10

Source File: RebalanceImpl.java From rocketmq with Apache License 2.0

5 votes

public void unlockAll(final boolean oneway) {
    HashMap<String, Set<MessageQueue>> brokerMqs = this.buildProcessQueueTableByBrokerName();

    for (final Map.Entry<String, Set<MessageQueue>> entry : brokerMqs.entrySet()) {
        final String brokerName = entry.getKey();
        final Set<MessageQueue> mqs = entry.getValue();

        if (mqs.isEmpty())
            continue;

        FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInSubscribe(brokerName, MixAll.MASTER_ID, true);
        if (findBrokerResult != null) {
            UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
            requestBody.setConsumerGroup(this.consumerGroup);
            requestBody.setClientId(this.mQClientFactory.getClientId());
            requestBody.setMqSet(mqs);

            try {
                this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(), requestBody, 1000, oneway);

                for (MessageQueue mq : mqs) {
                    ProcessQueue processQueue = this.processQueueTable.get(mq);
                    if (processQueue != null) {
                        processQueue.setLocked(false);
                        log.info("the message queue unlock OK, Group: {} {}", this.consumerGroup, mq);
                    }
                }
            } catch (Exception e) {
                log.error("unlockBatchMQ exception, " + mqs, e);
            }
        }
    }
}

Example #11

Source File: RebalanceImpl.java From RocketMQ-Master-analyze with Apache License 2.0

5 votes

public boolean lock(final MessageQueue mq) {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        LockBatchRequestBody requestBody = new LockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            Set<MessageQueue> lockedMq = this.mQClientFactory.getMQClientAPIImpl()
                .lockBatchMQ(findBrokerResult.getBrokerAddr(), requestBody, 1000);
            for (MessageQueue mmqq : lockedMq) {
                ProcessQueue processQueue = this.processQueueTable.get(mmqq);
                if (processQueue != null) {
                    processQueue.setLocked(true);
                    processQueue.setLastLockTimestamp(System.currentTimeMillis());
                }
            }

            boolean lockOK = lockedMq.contains(mq);
            log.info("the message queue lock {}, {} {}", //
                (lockOK ? "OK" : "Failed"), //
                this.consumerGroup, //
                mq);
            return lockOK;
        }
        catch (Exception e) {
            log.error("lockBatchMQ exception, " + mq, e);
        }
    }

    return false;
}

Example #12

Source File: RebalanceImpl.java From RocketMQ-Master-analyze with Apache License 2.0

5 votes

public void unlockAll(final boolean oneway) {
    HashMap<String, Set<MessageQueue>> brokerMqs = this.buildProcessQueueTableByBrokerName();

    for (final Map.Entry<String, Set<MessageQueue>> entry : brokerMqs.entrySet()) {
        final String brokerName = entry.getKey();
        final Set<MessageQueue> mqs = entry.getValue();

        if (mqs.isEmpty())
            continue;

        FindBrokerResult findBrokerResult =
                this.mQClientFactory.findBrokerAddressInSubscribe(brokerName, MixAll.MASTER_ID, true);
        if (findBrokerResult != null) {
            UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
            requestBody.setConsumerGroup(this.consumerGroup);
            requestBody.setClientId(this.mQClientFactory.getClientId());
            requestBody.setMqSet(mqs);

            try {
                this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(),
                    requestBody, 1000, oneway);

                for (MessageQueue mq : mqs) {
                    ProcessQueue processQueue = this.processQueueTable.get(mq);
                    if (processQueue != null) {
                        processQueue.setLocked(false);
                        log.info("the message queue unlock OK, Group: {} {}", this.consumerGroup, mq);
                    }
                }
            }
            catch (Exception e) {
                log.error("unlockBatchMQ exception, " + mqs, e);
            }
        }
    }
}

Example #13

Source File: RebalanceImpl.java From rocketmq with Apache License 2.0

5 votes

public boolean lock(final MessageQueue mq) {
    FindBrokerResult findBrokerResult = this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        LockBatchRequestBody requestBody = new LockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            Set<MessageQueue> lockedMq =
                    this.mQClientFactory.getMQClientAPIImpl().lockBatchMQ(findBrokerResult.getBrokerAddr(), requestBody, 1000);
            for (MessageQueue mmqq : lockedMq) {
                ProcessQueue processQueue = this.processQueueTable.get(mmqq);
                if (processQueue != null) {
                    processQueue.setLocked(true);
                    processQueue.setLastLockTimestamp(System.currentTimeMillis());
                }
            }

            boolean lockOK = lockedMq.contains(mq);
            log.info("the message queue lock {}, {} {}", //
                    (lockOK ? "OK" : "Failed"), //
                    this.consumerGroup, //
                    mq);
            return lockOK;
        } catch (Exception e) {
            log.error("lockBatchMQ exception, " + mq, e);
        }
    }

    return false;
}

Example #14

Source File: RebalanceImpl.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

5 votes

public boolean lock(final MessageQueue mq) {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(), MixAll.MASTER_ID, true);
    if (findBrokerResult != null) {
        LockBatchRequestBody requestBody = new LockBatchRequestBody();
        requestBody.setConsumerGroup(this.consumerGroup);
        requestBody.setClientId(this.mQClientFactory.getClientId());
        requestBody.getMqSet().add(mq);

        try {
            Set<MessageQueue> lockedMq =
                    this.mQClientFactory.getMQClientAPIImpl().lockBatchMQ(
                            findBrokerResult.getBrokerAddr(), requestBody, 1000);
            for (MessageQueue mmqq : lockedMq) {
                ProcessQueue processQueue = this.processQueueTable.get(mmqq);
                if (processQueue != null) {
                    processQueue.setLocked(true);
                    processQueue.setLastLockTimestamp(System.currentTimeMillis());
                }
            }

            boolean lockOK = lockedMq.contains(mq);
            log.info("the message queue lock {}, {} {}",//
                    (lockOK ? "OK" : "Failed"), //
                    this.consumerGroup, //
                    mq);
            return lockOK;
        } catch (Exception e) {
            log.error("lockBatchMQ exception, " + mq, e);
        }
    }

    return false;
}

Example #15

Source File: RebalanceImpl.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

5 votes

public void unlockAll(final boolean oneway) {
    HashMap<String, Set<MessageQueue>> brokerMqs = this.buildProcessQueueTableByBrokerName();

    for (final Map.Entry<String, Set<MessageQueue>> entry : brokerMqs.entrySet()) {
        final String brokerName = entry.getKey();
        final Set<MessageQueue> mqs = entry.getValue();

        if (mqs.isEmpty())
            continue;

        FindBrokerResult findBrokerResult =
                this.mQClientFactory.findBrokerAddressInSubscribe(brokerName, MixAll.MASTER_ID, true);
        if (findBrokerResult != null) {
            UnlockBatchRequestBody requestBody = new UnlockBatchRequestBody();
            requestBody.setConsumerGroup(this.consumerGroup);
            requestBody.setClientId(this.mQClientFactory.getClientId());
            requestBody.setMqSet(mqs);

            try {
                this.mQClientFactory.getMQClientAPIImpl().unlockBatchMQ(findBrokerResult.getBrokerAddr(),
                        requestBody, 1000, oneway);

                for (MessageQueue mq : mqs) {
                    ProcessQueue processQueue = this.processQueueTable.get(mq);
                    if (processQueue != null) {
                        processQueue.setLocked(false);
                        log.info("the message queue unlock OK, Group: {} {}", this.consumerGroup, mq);
                    }
                }
            } catch (Exception e) {
                log.error("unlockBatchMQ exception, " + mqs, e);
            }
        }
    }
}

Example #16

Source File: PullAPIWrapper.java From rocketmq with Apache License 2.0

4 votes

public PullResult pullKernelImpl(//
                                 final MessageQueue mq,// 1
                                 final String subExpression,// 2
                                 final long subVersion,// 3
                                 final long offset,// 4
                                 final int maxNums,// 5
                                 final int sysFlag,// 6
                                 final long commitOffset,// 7
                                 final long brokerSuspendMaxTimeMillis,// 8
                                 final long timeoutMillis,// 9
                                 final CommunicationMode communicationMode,// 10
                                 final PullCallback pullCallback// 11
) throws MQClientException, RemotingException, MQBrokerException, InterruptedException {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(),
                    this.recalculatePullFromWhichNode(mq), false);
    if (null == findBrokerResult) {
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult =
                this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(),
                        this.recalculatePullFromWhichNode(mq), false);
    }

    if (findBrokerResult != null) {
        int sysFlagInner = sysFlag;

        if (findBrokerResult.isSlave()) {
            sysFlagInner = PullSysFlag.clearCommitOffsetFlag(sysFlagInner);
        }

        PullMessageRequestHeader requestHeader = new PullMessageRequestHeader();
        requestHeader.setConsumerGroup(this.consumerGroup);
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setQueueOffset(offset);
        requestHeader.setMaxMsgNums(maxNums);
        requestHeader.setSysFlag(sysFlagInner);
        requestHeader.setCommitOffset(commitOffset);
        requestHeader.setSuspendTimeoutMillis(brokerSuspendMaxTimeMillis);
        requestHeader.setSubscription(subExpression);
        requestHeader.setSubVersion(subVersion);

        String brokerAddr = findBrokerResult.getBrokerAddr();
        if (PullSysFlag.hasClassFilterFlag(sysFlagInner)) {
            brokerAddr = computPullFromWhichFilterServer(mq.getTopic(), brokerAddr);
        }

        PullResult pullResult = this.mQClientFactory.getMQClientAPIImpl().pullMessage(//
                brokerAddr,//
                requestHeader,//
                timeoutMillis,//
                communicationMode,//
                pullCallback);

        return pullResult;
    }

    throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}

Example #17

Source File: PullAPIWrapper.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

4 votes

public PullResult pullKernelImpl(//
        final MessageQueue mq,// 1
        final String subExpression,// 2
        final long subVersion,// 3
        final long offset,// 4
        final int maxNums,// 5
        final int sysFlag,// 6
        final long commitOffset,// 7
        final long brokerSuspendMaxTimeMillis,// 8
        final long timeoutMillis,// 9
        final CommunicationMode communicationMode,// 10
        final PullCallback pullCallback// 11
) throws MQClientException, RemotingException, MQBrokerException, InterruptedException {
    FindBrokerResult findBrokerResult =
            this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(),
                this.recalculatePullFromWhichNode(mq), false);
    if (null == findBrokerResult) {
        //PullAPIWrapper.pullKernelImpl中调用updateTopicRouteInfoFromNameServer进行TopicRoute信息更新，最终保存在MQClientInstance.topicRouteTable
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult =
                this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(),
                    this.recalculatePullFromWhichNode(mq), false);
    }

    if (findBrokerResult != null) {
        int sysFlagInner = sysFlag;

        if (findBrokerResult.isSlave()) { //拉取broker选择了slave, 清理掉提交消费位点的系统标识位。
            sysFlagInner = PullSysFlag.clearCommitOffsetFlag(sysFlagInner);
        }

        PullMessageRequestHeader requestHeader = new PullMessageRequestHeader();
        requestHeader.setConsumerGroup(this.consumerGroup);
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setQueueOffset(offset);
        requestHeader.setMaxMsgNums(maxNums);
        requestHeader.setSysFlag(sysFlagInner);
        requestHeader.setCommitOffset(commitOffset);
        requestHeader.setSuspendTimeoutMillis(brokerSuspendMaxTimeMillis);
        requestHeader.setSubscription(subExpression);
        requestHeader.setSubVersion(subVersion);

        String brokerAddr = findBrokerResult.getBrokerAddr();
        if (PullSysFlag.hasClassFilterFlag(sysFlagInner)) {
            brokerAddr = computPullFromWhichFilterServer(mq.getTopic(), brokerAddr);
        }

        //开始从broker对应的brokerAddr拉取消息
        PullResult pullResult = this.mQClientFactory.getMQClientAPIImpl().pullMessage(//
                brokerAddr,//
                requestHeader,//
                timeoutMillis,//
                communicationMode,//同步从broker拉取消息还是异步拉取消息
                pullCallback);

        return pullResult;
    }

    throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}

Example #18

Source File: PullAPIWrapper.java From RocketMQ-Master-analyze with Apache License 2.0

4 votes

public PullResult pullKernelImpl(//
        final MessageQueue mq, // 1
        final String subExpression, // 2
        final long subVersion, // 3
        final long offset, // 4
        final int maxNums, // 5
        final int sysFlag, // 6
        final long commitOffset, // 7
        final long brokerSuspendMaxTimeMillis, // 8
        final long timeoutMillis, // 9
        final CommunicationMode communicationMode, // 10
        final PullCallback pullCallback// 11
) throws MQClientException, RemotingException, MQBrokerException, InterruptedException {
    FindBrokerResult findBrokerResult = this.mQClientFactory
        .findBrokerAddressInSubscribe(mq.getBrokerName(), this.recalculatePullFromWhichNode(mq), false);
    if (null == findBrokerResult) {
        this.mQClientFactory.updateTopicRouteInfoFromNameServer(mq.getTopic());
        findBrokerResult = this.mQClientFactory.findBrokerAddressInSubscribe(mq.getBrokerName(),
            this.recalculatePullFromWhichNode(mq), false);
    }

    if (findBrokerResult != null) {
        int sysFlagInner = sysFlag;

        if (findBrokerResult.isSlave()) {
            sysFlagInner = PullSysFlag.clearCommitOffsetFlag(sysFlagInner);
        }

        PullMessageRequestHeader requestHeader = new PullMessageRequestHeader();
        requestHeader.setConsumerGroup(this.consumerGroup);
        requestHeader.setTopic(mq.getTopic());
        requestHeader.setQueueId(mq.getQueueId());
        requestHeader.setQueueOffset(offset);
        requestHeader.setMaxMsgNums(maxNums);
        requestHeader.setSysFlag(sysFlagInner);
        requestHeader.setCommitOffset(commitOffset);
        requestHeader.setSuspendTimeoutMillis(brokerSuspendMaxTimeMillis);
        requestHeader.setSubscription(subExpression);
        requestHeader.setSubVersion(subVersion);

        String brokerAddr = findBrokerResult.getBrokerAddr();
        if (PullSysFlag.hasClassFilterFlag(sysFlagInner)) {
            brokerAddr = computPullFromWhichFilterServer(mq.getTopic(), brokerAddr);
        }

        PullResult pullResult = this.mQClientFactory.getMQClientAPIImpl().pullMessage(//
            brokerAddr, //
            requestHeader, //
            timeoutMillis, //
            communicationMode, //
            pullCallback);

        return pullResult;
    }

    throw new MQClientException("The broker[" + mq.getBrokerName() + "] not exist", null);
}