Java Code Examples for org.apache.rocketmq.common.message.Message#setDelayTimeLevel()

The following examples show how to use org.apache.rocketmq.common.message.Message#setDelayTimeLevel() . 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: DefaultMQPushConsumerImpl.java From rocketmq-all-4.1.0-incubating with Apache License 2.0

6 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());
        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg,
            this.defaultMQPushConsumer.getConsumerGroup(), delayLevel, 5000, getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPushConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPushConsumer.getConsumerGroup()), msg.getBody());

        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);

        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());

        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 2

Source File: RocketMQSink.java From flink-learning with Apache License 2.0

6 votes

/**
 * 解析消息
 *
 * @param input
 * @return
 */
private Message prepareMessage(IN input) {
    String topic = topicSelector.getTopic(input);
    String tag = topicSelector.getTag(input) != null ? topicSelector.getTag(input) : "";

    byte[] k = serializationSchema.serializeKey(input);
    String key = k != null ? new String(k, StandardCharsets.UTF_8) : "";
    byte[] value = serializationSchema.serializeValue(input);

    Validate.notNull(topic, "the message topic is null");
    Validate.notNull(value, "the message body is null");

    Message msg = new Message(topic, tag, key, value);
    if (this.messageDeliveryDelayLevel > RocketMQConfig.MSG_DELAY_LEVEL00) {
        msg.setDelayTimeLevel(this.messageDeliveryDelayLevel);
    }
    return msg;
}

Example 3

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

6 votes

public boolean sendMessageBack(final MessageExt msg) {
    try {
        // max reconsume times exceeded then send to dead letter queue.
        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPushConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes()));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(getMaxReconsumeTimes()));
        MessageAccessor.clearProperty(newMsg, MessageConst.PROPERTY_TRANSACTION_PREPARED);
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());

        this.defaultMQPushConsumer.getDefaultMQPushConsumerImpl().getmQClientFactory().getDefaultMQProducer().send(newMsg);
        return true;
    } catch (Exception e) {
        log.error("sendMessageBack exception, group: " + this.consumerGroup + " msg: " + msg.toString(), e);
    }

    return false;
}

Example 4

Source File: ScheduledMessageProducer.java From spring-boot-starter-samples with Apache License 2.0

6 votes

public static void main(String[] args) throws Exception {
    // Instantiate a producer to send scheduled messages
    DefaultMQProducer producer = new DefaultMQProducer("ExampleProducerGroup");
    // Launch producer
    producer.start();
    int totalMessagesToSend = 100;
    for (int i = 0; i < totalMessagesToSend; i++) {
        Message message = new Message("TestTopic", ("Hello scheduled message " + i).getBytes());
        // This message will be delivered to consumer 10 seconds later.
        message.setDelayTimeLevel(3);
        // Send the message
        producer.send(message);
    }
   
    // Shutdown producer after use.
    producer.shutdown();
}

Example 5

Source File: RocketMQSink.java From flink-learning with Apache License 2.0

6 votes

/**
 * 解析消息
 *
 * @param input
 * @return
 */
private Message prepareMessage(IN input) {
    String topic = topicSelector.getTopic(input);
    String tag = topicSelector.getTag(input) != null ? topicSelector.getTag(input) : "";

    byte[] k = serializationSchema.serializeKey(input);
    String key = k != null ? new String(k, StandardCharsets.UTF_8) : "";
    byte[] value = serializationSchema.serializeValue(input);

    Validate.notNull(topic, "the message topic is null");
    Validate.notNull(value, "the message body is null");

    Message msg = new Message(topic, tag, key, value);
    if (this.messageDeliveryDelayLevel > RocketMQConfig.MSG_DELAY_LEVEL00) {
        msg.setDelayTimeLevel(this.messageDeliveryDelayLevel);
    }
    return msg;
}

Example 6

Source File: DelayProducer.java From blog with MIT License

6 votes

public static void main(String[] args)
    throws MQClientException, RemotingException, InterruptedException, MQBrokerException {
  DefaultMQProducer producer = new DefaultMQProducer("Delay_Producer");
  producer.setNamesrvAddr("127.0.0.1:9876");
  producer.start();

  String body = " Hello Delay Message " + System.currentTimeMillis();
  Message message = new Message("DelayMessageTopic", "TagA", body.getBytes());

  /**
   * TODO: 设置延迟消息 延迟等级，通过 broker 设置 delayTimeLevel
   *
   * <p>共 18 个等级: “1s 5s 10s 30s 1m 2m 3m 4m 5m 6m 7m 8m 9m 10m 20m 30m 1h 2h”
   */
  message.setDelayTimeLevel(3);
  SendResult result = producer.send(message);
  System.out.println(result);

  producer.shutdown();
}

Example 7

Source File: RocketMqProducer.java From paascloud-master with Apache License 2.0

5 votes

public static SendResult sendSimpleMessage(String body, String topic, String tag, String key, String pid, Integer delayLevel) {
	if (delayLevel == null) {
		delayLevel = 0;
	}
	Message message = MqMessage.checkMessage(body, topic, tag, key);
	if (delayLevel < 0 || delayLevel > GlobalConstant.Number.EIGHTEEN_INT) {
		throw new TpcBizException(ErrorCodeEnum.TPC100500013, topic, key);
	}
	message.setDelayTimeLevel(delayLevel);
	return retrySendMessage(pid, message);
}

Example 8

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

5 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());
        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg,
            this.defaultMQPushConsumer.getConsumerGroup(), delayLevel, 5000, getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPushConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPushConsumer.getConsumerGroup()), msg.getBody());

        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);

        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(getMaxReconsumeTimes()));
        MessageAccessor.clearProperty(newMsg, MessageConst.PROPERTY_TRANSACTION_PREPARED);
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());

        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    } finally {
        msg.setTopic(NamespaceUtil.withoutNamespace(msg.getTopic(), this.defaultMQPushConsumer.getNamespace()));
    }
}

Example 9

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

5 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName, String consumerGroup)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());

        if (UtilAll.isBlank(consumerGroup)) {
            consumerGroup = this.defaultMQPullConsumer.getConsumerGroup();
        }

        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg, consumerGroup, delayLevel, 3000,
            this.defaultMQPullConsumer.getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPullConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPullConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(this.defaultMQPullConsumer.getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());
        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 10

Source File: DefaultMQPullConsumerImpl.java From rocketmq-all-4.1.0-incubating with Apache License 2.0

5 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName, String consumerGroup)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());

        if (UtilAll.isBlank(consumerGroup)) {
            consumerGroup = this.defaultMQPullConsumer.getConsumerGroup();
        }

        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg, consumerGroup, delayLevel, 3000,
            this.defaultMQPullConsumer.getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPullConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPullConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(this.defaultMQPullConsumer.getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());
        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 11

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

5 votes

public static List<Object> getDelayMsg(String topic, int delayLevel, int msgSize) {
    List<Object> msgs = new ArrayList<Object>();
    for (int i = 0; i < msgSize; i++) {
        Message msg = new Message(topic, RandomUtil.getStringByUUID().getBytes());
        msg.setDelayTimeLevel(delayLevel);
        msgs.add(msg);
    }
    return msgs;
}

Example 12

Source File: MQMessageFactory.java From rocketmq-all-4.1.0-incubating with Apache License 2.0

5 votes

public static List<Object> getDelayMsg(String topic, int delayLevel, int msgSize) {
    List<Object> msgs = new ArrayList<Object>();
    for (int i = 0; i < msgSize; i++) {
        Message msg = new Message(topic, RandomUtil.getStringByUUID().getBytes());
        msg.setDelayTimeLevel(delayLevel);
        msgs.add(msg);
    }
    return msgs;
}

Example 13

Source File: MQMessageFactory.java From rocketmq-read with Apache License 2.0

5 votes

public static List<Object> getDelayMsg(String topic, int delayLevel, int msgSize) {
    List<Object> msgs = new ArrayList<Object>();
    for (int i = 0; i < msgSize; i++) {
        Message msg = new Message(topic, RandomUtil.getStringByUUID().getBytes());
        msg.setDelayTimeLevel(delayLevel);
        msgs.add(msg);
    }
    return msgs;
}

Example 14

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

5 votes

/**
 * 将消息发回broker
 * @param msg msg
 * @param delayLevel delayLevel
 * @param brokerName brokername
 * @param consumerGroup 消费组
 * @throws RemotingException ;
 * @throws MQBrokerException ;
 * @throws InterruptedException ;
 * @throws MQClientException ;
 */
public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName, String consumerGroup)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());

        if (UtilAll.isBlank(consumerGroup)) {
            consumerGroup = this.defaultMQPullConsumer.getConsumerGroup();
        }

        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg, consumerGroup, delayLevel, 6000,
            this.defaultMQPullConsumer.getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPullConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPullConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(this.defaultMQPullConsumer.getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());
        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 15

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

5 votes

/**
 * 将消息发回broker
 * @param msg ;
 * @param delayLevel ;
 * @param brokerName ;
 * @throws RemotingException ;
 * @throws MQBrokerException ;
 * @throws InterruptedException ;
 * @throws MQClientException ;
 */
public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());
        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg,
            this.defaultMQPushConsumer.getConsumerGroup(), delayLevel, 5000, getMaxReconsumeTimes());

    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPushConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPushConsumer.getConsumerGroup()), msg.getBody());

        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);

        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());

        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 16

Source File: DefaultRocketMqProducer.java From spring-boot-rocketmq-starter with Apache License 2.0

5 votes

/**
 * send delay msg.
 *
 * @param msg content
 * @param delayLevel 1s 5s 10s 30s 1m 2m 3m 4m 5m 6m 7m 8m 9m 10m 20m 30m 1h 2h
 * @return send result
 */
public boolean sendDelayMsg(String topic, String tag, Message msg, int delayLevel) {
    msg.setDelayTimeLevel(delayLevel);
    SendResult sendResult = null;
    try {
        sendResult = producer.send(msg);
    } catch (Exception e) {
        logger.error("send msg error", e);
    }
    return sendResult != null && sendResult.getSendStatus() == SendStatus.SEND_OK;
}

Example 17

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

5 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName, String consumerGroup)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());

        if (UtilAll.isBlank(consumerGroup)) {
            consumerGroup = this.defaultMQPullConsumer.getConsumerGroup();
        }

        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg, consumerGroup, delayLevel, 3000,
            this.defaultMQPullConsumer.getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPullConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPullConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(this.defaultMQPullConsumer.getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());
        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    } finally {
        msg.setTopic(NamespaceUtil.withoutNamespace(msg.getTopic(), this.defaultMQPullConsumer.getNamespace()));
    }
}

Example 18

Source File: MQMessageFactory.java From DDMQ with Apache License 2.0

5 votes

public static List<Object> getDelayMsg(String topic, int delayLevel, int msgSize) {
    List<Object> msgs = new ArrayList<Object>();
    for (int i = 0; i < msgSize; i++) {
        Message msg = new Message(topic, RandomUtil.getStringByUUID().getBytes());
        msg.setDelayTimeLevel(delayLevel);
        msgs.add(msg);
    }
    return msgs;
}

Example 19

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

5 votes

public void sendMessageBack(MessageExt msg, int delayLevel, final String brokerName, String consumerGroup)
    throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
    try {
        String brokerAddr = (null != brokerName) ? this.mQClientFactory.findBrokerAddressInPublish(brokerName)
            : RemotingHelper.parseSocketAddressAddr(msg.getStoreHost());

        if (UtilAll.isBlank(consumerGroup)) {
            consumerGroup = this.defaultMQPullConsumer.getConsumerGroup();
        }

        this.mQClientFactory.getMQClientAPIImpl().consumerSendMessageBack(brokerAddr, msg, consumerGroup, delayLevel, 3000,
            this.defaultMQPullConsumer.getMaxReconsumeTimes());
    } catch (Exception e) {
        log.error("sendMessageBack Exception, " + this.defaultMQPullConsumer.getConsumerGroup(), e);

        Message newMsg = new Message(MixAll.getRetryTopic(this.defaultMQPullConsumer.getConsumerGroup()), msg.getBody());
        String originMsgId = MessageAccessor.getOriginMessageId(msg);
        MessageAccessor.setOriginMessageId(newMsg, UtilAll.isBlank(originMsgId) ? msg.getMsgId() : originMsgId);
        newMsg.setFlag(msg.getFlag());
        MessageAccessor.setProperties(newMsg, msg.getProperties());
        MessageAccessor.putProperty(newMsg, MessageConst.PROPERTY_RETRY_TOPIC, msg.getTopic());
        MessageAccessor.setReconsumeTime(newMsg, String.valueOf(msg.getReconsumeTimes() + 1));
        MessageAccessor.setMaxReconsumeTimes(newMsg, String.valueOf(this.defaultMQPullConsumer.getMaxReconsumeTimes()));
        newMsg.setDelayTimeLevel(3 + msg.getReconsumeTimes());
        this.mQClientFactory.getDefaultMQProducer().send(newMsg);
    }
}

Example 20

Source File: Producer.java From rocketmq-all-4.1.0-incubating with Apache License 2.0

4 votes

public static void main(String[] args) throws MQClientException, InterruptedException {

        /*
         * Instantiate with a producer group name.
         */
        DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");//DefaultMQProducer里面的注释很全了
       //指定NameServer地址
        producer.setNamesrvAddr("127.0.0.1:9876");
        /*
         * Specify name server addresses.
         * <p/>
         *
         * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
         * <pre>
         * {@code
         * producer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
         * }
         * </pre>
         */

        /*
         * Launch the instance.
         */
        /**
         * Producer对象在使用之前必须要调用start初始化，初始化一次即可
         * 注意：切记不可以在每次发送消息时，都调用start方法
         */
        producer.start();

        producer.setSendLatencyFaultEnable(true);

        for (int i = 0; i < 5; i++) {
            try {

                /*
                 * Create a message instance, specifying topic, tag and message body.
                 */
                Message msg = new Message("TopicTest" /* Topic */,
                    "TagA" /* Tag */,UUID.randomUUID().toString(),
                    ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
                );

                //添加定时发送
                msg.setDelayTimeLevel(3);

                /*
                 * Call send message to deliver message to one of brokers.
                 */
                SendResult sendResult = producer.send(msg);

                System.out.printf("%s%n", sendResult);
            } catch (Exception e) {
                e.printStackTrace();
                Thread.sleep(1000);
            }
        }

        /*
         * Shut down once the producer instance is not longer in use.
         */
        producer.shutdown();
    }