com.alibaba.rocketmq.common.ServiceState Java Examples

The following examples show how to use com.alibaba.rocketmq.common.ServiceState. 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: DefaultMQProducerImpl.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0

6 votes

public void shutdown(final boolean shutdownFactory) {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.mQClientFactory.unregisterProducer(this.defaultMQProducer.getProducerGroup());
        if (shutdownFactory) {
            this.mQClientFactory.shutdown();
        }

        log.info("the producer [{}] shutdown OK", this.defaultMQProducer.getProducerGroup());
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #2

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

6 votes

@Override
public void shutdown() {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.mqClientInstance.unregisterAdminExt(this.defaultMQAdminExt.getAdminExtGroup());
        this.mqClientInstance.shutdown();

        log.info("the adminExt [{}] shutdown OK", this.defaultMQAdminExt.getAdminExtGroup());
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #3

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

6 votes

public void shutdown() {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.persistConsumerOffset();
        this.mQClientFactory.unregisterConsumer(this.defaultMQPullConsumer.getConsumerGroup());
        this.mQClientFactory.shutdown();
        log.info("the consumer [{}] shutdown OK", this.defaultMQPullConsumer.getConsumerGroup());
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #4

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

6 votes

public void shutdown() {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.consumeMessageService.shutdown();
        this.persistConsumerOffset();
        this.mQClientFactory.unregisterConsumer(this.defaultMQPushConsumer.getConsumerGroup());
        this.mQClientFactory.shutdown();
        log.info("the consumer [{}] shutdown OK", this.defaultMQPushConsumer.getConsumerGroup());
        this.rebalanceImpl.destroy();
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #5

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

6 votes

public void shutdown(final boolean shutdownFactory) {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.mQClientFactory.unregisterProducer(this.defaultMQProducer.getProducerGroup());
        if (shutdownFactory) {
            this.mQClientFactory.shutdown();
        }

        log.info("the producer [{}] shutdown OK", this.defaultMQProducer.getProducerGroup());
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #6

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

6 votes

@Override
public void shutdown() {
    switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.mqClientInstance.unregisterAdminExt(this.defaultMQAdminExt.getAdminExtGroup());
            this.mqClientInstance.shutdown();

            log.info("the adminExt [{}] shutdown OK", this.defaultMQAdminExt.getAdminExtGroup());
            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
    }
}

Example #7

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

6 votes

public void shutdown() {
    switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.persistConsumerOffset();
            this.mQClientFactory.unregisterConsumer(this.defaultMQPullConsumer.getConsumerGroup());
            this.mQClientFactory.shutdown();
            log.info("the consumer [{}] shutdown OK", this.defaultMQPullConsumer.getConsumerGroup());
            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
    }
}

Example #8

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

6 votes

public void shutdown() {
    switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.consumeMessageService.shutdown();
            this.persistConsumerOffset();
            this.mQClientFactory.unregisterConsumer(this.defaultMQPushConsumer.getConsumerGroup());
            this.mQClientFactory.shutdown();
            log.info("the consumer [{}] shutdown OK", this.defaultMQPushConsumer.getConsumerGroup());
            this.rebalanceImpl.destroy();
            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
    }
}

Example #9

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

6 votes

public void shutdown(final boolean shutdownFactory) {
    switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.mQClientFactory.unregisterProducer(this.defaultMQProducer.getProducerGroup());
            if (shutdownFactory) {
                this.mQClientFactory.shutdown();
            }

            log.info("the producer [{}] shutdown OK", this.defaultMQProducer.getProducerGroup());
            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
    }
}

Example #10

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

6 votes

@Override
public void shutdown() {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.mqClientInstance.unregisterAdminExt(this.defaultMQAdminExt.getAdminExtGroup());
        this.mqClientInstance.shutdown();

        log.info("the adminExt [{}] shutdown OK", this.defaultMQAdminExt.getAdminExtGroup());
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #11

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

6 votes

public void shutdown() {
    switch (this.serviceState) {
    case CREATE_JUST:
        break;
    case RUNNING:
        this.consumeMessageService.shutdown();
        this.persistConsumerOffset();
        this.mQClientFactory.unregisterConsumer(this.defaultMQPushConsumer.getConsumerGroup());
        this.mQClientFactory.shutdown();
        log.info("the consumer [{}] shutdown OK", this.defaultMQPushConsumer.getConsumerGroup());
        this.rebalanceImpl.destroy();
        this.serviceState = ServiceState.SHUTDOWN_ALREADY;
        break;
    case SHUTDOWN_ALREADY:
        break;
    default:
        break;
    }
}

Example #12

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
            null);
    }
}

Example #13

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The producer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
            null);
    }
}

Example #14

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK), null);
    }
}

Example #15

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

5 votes

@Override
public void start() throws MQClientException {
    switch (this.serviceState) {
        case CREATE_JUST:
            this.serviceState = ServiceState.START_FAILED;

            this.defaultMQAdminExt.changeInstanceNameToPID();

            this.mqClientInstance = MQClientManager.getInstance().getAndCreateMQClientInstance(this.defaultMQAdminExt, rpcHook);

            boolean registerOK = mqClientInstance.registerAdminExt(this.defaultMQAdminExt.getAdminExtGroup(), this);
            if (!registerOK) {
                this.serviceState = ServiceState.CREATE_JUST;
                throw new MQClientException("The adminExt group[" + this.defaultMQAdminExt.getAdminExtGroup()
                        + "] has created already, specifed another name please."//
                        + FAQUrl.suggestTodo(FAQUrl.GROUP_NAME_DUPLICATE_URL), null);
            }

            mqClientInstance.start();

            log.info("the adminExt [{}] start OK", this.defaultMQAdminExt.getAdminExtGroup());

            this.serviceState = ServiceState.RUNNING;
            break;
        case RUNNING:
        case START_FAILED:
        case SHUTDOWN_ALREADY:
            throw new MQClientException("The AdminExt service state not OK, maybe started once, "//
                    + this.serviceState//
                    + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK), null);
        default:
            break;
    }
}

Example #16

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

5 votes

public void shutdown() {
    // Consumer
    if (!this.consumerTable.isEmpty())
        return;

    // AdminExt
    if (!this.adminExtTable.isEmpty())
        return;

    // Producer
    if (this.producerTable.size() > 1)
        return;

    synchronized (this) {
        switch (this.serviceState) {
            case CREATE_JUST:
                break;
            case RUNNING:
                this.defaultMQProducer.getDefaultMQProducerImpl().shutdown(false);

                this.serviceState = ServiceState.SHUTDOWN_ALREADY;
                this.pullMessageService.shutdown(true);
                this.scheduledExecutorService.shutdown();
                this.mQClientAPIImpl.shutdown();
                this.rebalanceService.shutdown();

                if (this.datagramSocket != null) {
                    this.datagramSocket.close();
                    this.datagramSocket = null;
                }
                MQClientManager.getInstance().removeClientFactory(this.clientId);
                log.info("the client factory [{}] shutdown OK", this.clientId);
                break;
            case SHUTDOWN_ALREADY:
                break;
            default:
                break;
        }
    }
}

Example #17

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

5 votes

public void start() throws MQClientException {

        synchronized (this) {
            switch (this.serviceState) {
                case CREATE_JUST:
                    this.serviceState = ServiceState.START_FAILED;
                    // If not specified,looking address from name server
                    if (null == this.clientConfig.getNamesrvAddr()) {
                        this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
                    }
                    // Start request-response channel
                    this.mQClientAPIImpl.start();
                    // Start various schedule tasks
                    this.startScheduledTask();
                    // Start pull service
                    this.pullMessageService.start();
                    // Start rebalance service
                    this.rebalanceService.start();
                    // Start push service
                    this.defaultMQProducer.getDefaultMQProducerImpl().start(false);
                    log.info("the client factory [{}] start OK", this.clientId);
                    this.serviceState = ServiceState.RUNNING;
                    break;
                case RUNNING:
                    break;
                case SHUTDOWN_ALREADY:
                    break;
                case START_FAILED:
                    throw new MQClientException("The Factory object[" + this.getClientId() + "] has been created before, and failed.", null);
                default:
                    break;
            }
        }
    }

Example #18

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
            null);
    }
}

Example #19

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
                null);
    }
}

Example #20

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
                null);
    }
}

Example #21

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The producer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK), null);
    }
}

Example #22

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

5 votes

@Override
public void start() throws MQClientException {
    switch (this.serviceState) {
    case CREATE_JUST:
        this.serviceState = ServiceState.START_FAILED;

        this.defaultMQAdminExt.changeInstanceNameToPID();

        this.mqClientInstance = MQClientManager.getInstance().getAndCreateMQClientInstance(this.defaultMQAdminExt, rpcHook);

        boolean registerOK = mqClientInstance.registerAdminExt(this.defaultMQAdminExt.getAdminExtGroup(), this);
        if (!registerOK) {
            this.serviceState = ServiceState.CREATE_JUST;
            throw new MQClientException("The adminExt group[" + this.defaultMQAdminExt.getAdminExtGroup()
                    + "] has created already, specifed another name please."//
                    + FAQUrl.suggestTodo(FAQUrl.GROUP_NAME_DUPLICATE_URL), null);
        }

        mqClientInstance.start();

        log.info("the adminExt [{}] start OK", this.defaultMQAdminExt.getAdminExtGroup());

        this.serviceState = ServiceState.RUNNING;
        break;
    case RUNNING:
    case START_FAILED:
    case SHUTDOWN_ALREADY:
        throw new MQClientException("The AdminExt service state not OK, maybe started once, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK), null);
    default:
        break;
    }
}

Example #23

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

5 votes

public void shutdown() {
    switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.persistConsumerOffset();
            /* 如果是生产者，断开连接后会注销producer，抓包如下:
             *客户端向broker发送注销 yyzGroup2 消费分组请求
             * ........{"code":35,"extFields":{"clientID":"192.168.56.1@7644","producerGroup":"yyzGroup2"},"flag":0,
             * "language":"JAVA","opaque":12,"serializeTypeCurrentRPC":"JSON","version":115}
             * broker会有注销成功
             * ...s...o{"code":0,"extFields":{},"flag":1,"language":"JAVA","opaque":12,"serializeTypeCurrentRPC":"JSON","version":115}
             *
             *客户端向broker发送注销 CLIENT_INNER_PRODUCER 消费分组请求
             * ........{"code":35,"extFields":{"clientID":"192.168.56.1@7644","producerGroup":"CLIENT_INNER_PRODUCER"},"flag":0,"
             * language":"JAVA","opaque":20,"serializeTypeCurrentRPC":"JSON","version":115}
             *
             * broker会有注销成功
             * ...s...o{"code":0,"extFields":{},"flag":1,"language":"JAVA","opaque":20,"serializeTypeCurrentRPC":"JSON","version":115}
              * */
            this.mQClientFactory.unregisterConsumer(this.defaultMQPullConsumer.getConsumerGroup());
            this.mQClientFactory.shutdown();
            log.info("the consumer [{}] shutdown OK", this.defaultMQPullConsumer.getConsumerGroup());
            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
    }
}

Example #24

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The consumer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK), null);
    }
}

Example #25

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

5 votes

@Override
public void start() throws MQClientException {
    switch (this.serviceState) {
    case CREATE_JUST:
        this.serviceState = ServiceState.START_FAILED;

        this.defaultMQAdminExt.changeInstanceNameToPID();

        this.mqClientInstance = MQClientManager.getInstance()
            .getAndCreateMQClientInstance(this.defaultMQAdminExt, rpcHook);

        boolean registerOK =
                mqClientInstance.registerAdminExt(this.defaultMQAdminExt.getAdminExtGroup(), this);
        if (!registerOK) {
            this.serviceState = ServiceState.CREATE_JUST;
            throw new MQClientException("The adminExt group[" + this.defaultMQAdminExt.getAdminExtGroup()
                    + "] has created already, specifed another name please."//
                    + FAQUrl.suggestTodo(FAQUrl.GROUP_NAME_DUPLICATE_URL),
                null);
        }

        mqClientInstance.start();

        log.info("the adminExt [{}] start OK", this.defaultMQAdminExt.getAdminExtGroup());

        this.serviceState = ServiceState.RUNNING;
        break;
    case RUNNING:
    case START_FAILED:
    case SHUTDOWN_ALREADY:
        throw new MQClientException("The AdminExt service state not OK, maybe started once, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
            null);
    default:
        break;
    }
}

Example #26

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

5 votes

public void shutdown() {
    // Consumer
    if (!this.consumerTable.isEmpty())
        return;

    // AdminExt
    if (!this.adminExtTable.isEmpty())
        return;

    // Producer
    if (this.producerTable.size() > 1)
        return;

    synchronized (this) {
        switch (this.serviceState) {
            case CREATE_JUST:
                break;
            case RUNNING:
                this.defaultMQProducer.getDefaultMQProducerImpl().shutdown(false);

                this.serviceState = ServiceState.SHUTDOWN_ALREADY;
                this.pullMessageService.shutdown(true);
                this.scheduledExecutorService.shutdown();
                this.mQClientAPIImpl.shutdown();
                this.rebalanceService.shutdown();

                if (this.datagramSocket != null) {
                    this.datagramSocket.close();
                    this.datagramSocket = null;
                }
                MQClientManager.getInstance().removeClientFactory(this.clientId);
                log.info("the client factory [{}] shutdown OK", this.clientId);
                break;
            case SHUTDOWN_ALREADY:
                break;
            default:
                break;
        }
    }
}

Example #27

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

5 votes

public void start() throws MQClientException {
    PackageConflictDetect.detectFastjson();

    synchronized (this) {
        switch (this.serviceState) {
        case CREATE_JUST:
            this.serviceState = ServiceState.START_FAILED;
            // If not specified,looking address from name server
            if (null == this.clientConfig.getNamesrvAddr()) {
                this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
            }
            // Start request-response channel
            this.mQClientAPIImpl.start();
            // Start various schedule tasks
            this.startScheduledTask();
            // Start pull service
            this.pullMessageService.start();
            // Start rebalance service
            this.rebalanceService.start();
            // Start push service
            this.defaultMQProducer.getDefaultMQProducerImpl().start(false);
            log.info("the client factory [{}] start OK", this.clientId);
            this.serviceState = ServiceState.RUNNING;
            break;
        case RUNNING:
            break;
        case SHUTDOWN_ALREADY:
            break;
        case START_FAILED:
            throw new MQClientException("The Factory object[" + this.getClientId() + "] has been created before, and failed.", null);
        default:
            break;
        }
    }
}

Example #28

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

5 votes

public void shutdown() {
    // Consumer
    if (!this.consumerTable.isEmpty())
        return;

    // AdminExt
    if (!this.adminExtTable.isEmpty())
        return;

    // Producer
    if (this.producerTable.size() > 1)
        return;

    synchronized (this) {
        switch (this.serviceState) {
        case CREATE_JUST:
            break;
        case RUNNING:
            this.defaultMQProducer.getDefaultMQProducerImpl().shutdown(false);

            this.serviceState = ServiceState.SHUTDOWN_ALREADY;
            this.pullMessageService.shutdown(true);
            this.scheduledExecutorService.shutdown();
            this.mQClientAPIImpl.shutdown();
            this.rebalanceService.shutdown();

            if (this.datagramSocket != null) {
                this.datagramSocket.close();
                this.datagramSocket = null;
            }
            MQClientManager.getInstance().removeClientFactory(this.clientId);
            log.info("the client factory [{}] shutdown OK", this.clientId);
            break;
        case SHUTDOWN_ALREADY:
            break;
        default:
            break;
        }
    }
}

Example #29

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

5 votes

private void makeSureStateOK() throws MQClientException {
    if (this.serviceState != ServiceState.RUNNING) {
        throw new MQClientException("The producer service state not OK, "//
                + this.serviceState//
                + FAQUrl.suggestTodo(FAQUrl.CLIENT_SERVICE_NOT_OK),
                null);
    }
}

Example #30

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

5 votes

public void start() throws MQClientException {
    PackageConflictDetect.detectFastjson();

    synchronized (this) {
        switch (this.serviceState) {
            case CREATE_JUST:
                this.serviceState = ServiceState.START_FAILED;
                // If not specified,looking address from name server
                if (null == this.clientConfig.getNamesrvAddr()) {
                    this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
                }
                // Start request-response channel
                this.mQClientAPIImpl.start();
                // Start various schedule tasks
                this.startScheduledTask();
                // Start pull service
                this.pullMessageService.start();
                // Start rebalance service
                this.rebalanceService.start();
                // Start push service
                this.defaultMQProducer.getDefaultMQProducerImpl().start(false);
                log.info("the client factory [{}] start OK", this.clientId);
                this.serviceState = ServiceState.RUNNING;
                break;
            case RUNNING:
                break;
            case SHUTDOWN_ALREADY:
                break;
            case START_FAILED:
                throw new MQClientException(
                        "The Factory object[" + this.getClientId() + "] has been created before, and failed.",
                        null);
            default:
                break;
        }
    }
}