Java MessageExt.getBody方法代码示例

import org.apache.rocketmq.common.message.MessageExt; //导入方法依赖的package包/类
@SuppressWarnings("unchecked")
private Object doConvertMessage(MessageExt messageExt) {
    if (Objects.equals(messageType, MessageExt.class)) {
        return messageExt;
    } else {
        String str = new String(messageExt.getBody(), Charset.forName(charset));
        if (Objects.equals(messageType, String.class)) {
            return str;
        } else {
            // if msgType not string, use objectMapper change it.
            try {
                return objectMapper.readValue(str, messageType);
            } catch (Exception e) {
                log.info("convert failed. str:{}, msgType:{}", str, messageType);
                throw new RuntimeException("cannot convert message to " + messageType, e);
            }
        }
    }
}
 

import org.apache.rocketmq.common.message.MessageExt; //导入方法依赖的package包/类
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);
    }
}
 

import org.apache.rocketmq.common.message.MessageExt; //导入方法依赖的package包/类
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()));
        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;
}
 

import org.apache.rocketmq.common.message.MessageExt; //导入方法依赖的package包/类
/**
 * 反序列化解析消息
 *
 * @param message  消息体
 * @return 序列化结果
 */
protected T parseMessage(MessageExt message) {
    if (message == null || message.getBody() == null) {
        return null;
    }
    final Type type = this.getMessageType();
    if (type instanceof Class) {
        try {
            T data = gson.fromJson(new String(message.getBody()), type);
            return data;
        } catch (JsonSyntaxException e) {
            log.error("parse message json fail : {}", e.getMessage());
        }
    } else {
        log.warn("Parse msg error. {}", message);
    }
    return null;
}
 

import org.apache.rocketmq.common.message.MessageExt; //导入方法依赖的package包/类
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);
    }
}