private DefaultMQProducer createProducer()

in rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/autoconfigure/ExtProducerResetConfiguration.java [100:134]
30 lines of code
11 McCabe index (conditional complexity)

    private DefaultMQProducer createProducer(ExtRocketMQTemplateConfiguration annotation) {

        RocketMQProperties.Producer producerConfig = rocketMQProperties.getProducer();
        if (producerConfig == null) {
            producerConfig = new RocketMQProperties.Producer();
        }
        String nameServer = environment.resolvePlaceholders(annotation.nameServer());
        String groupName = environment.resolvePlaceholders(annotation.group());
        groupName = !StringUtils.hasLength(groupName) ? producerConfig.getGroup() : groupName;

        String ak = environment.resolvePlaceholders(annotation.accessKey());
        ak = StringUtils.hasLength(ak) ? ak : producerConfig.getAccessKey();
        String sk = environment.resolvePlaceholders(annotation.secretKey());
        sk = StringUtils.hasLength(sk) ? sk : producerConfig.getSecretKey();
        boolean isEnableMsgTrace = annotation.enableMsgTrace();
        String customizedTraceTopic = environment.resolvePlaceholders(annotation.customizedTraceTopic());
        customizedTraceTopic = StringUtils.hasLength(customizedTraceTopic) ? customizedTraceTopic : producerConfig.getCustomizedTraceTopic();
        //if String is not is equal "true" TLS mode will represent the as default value false
        boolean useTLS = new Boolean(environment.resolvePlaceholders(annotation.tlsEnable()));

        DefaultMQProducer producer = RocketMQUtil.createDefaultMQProducer(groupName, ak, sk, isEnableMsgTrace, customizedTraceTopic);

        producer.setNamesrvAddr(nameServer);
        producer.setSendMsgTimeout(annotation.sendMessageTimeout() == -1 ? producerConfig.getSendMessageTimeout() : annotation.sendMessageTimeout());
        producer.setRetryTimesWhenSendFailed(annotation.retryTimesWhenSendFailed() == -1 ? producerConfig.getRetryTimesWhenSendFailed() : annotation.retryTimesWhenSendFailed());
        producer.setRetryTimesWhenSendAsyncFailed(annotation.retryTimesWhenSendAsyncFailed() == -1 ? producerConfig.getRetryTimesWhenSendAsyncFailed() : annotation.retryTimesWhenSendAsyncFailed());
        producer.setMaxMessageSize(annotation.maxMessageSize() == -1 ? producerConfig.getMaxMessageSize() : annotation.maxMessageSize());
        producer.setCompressMsgBodyOverHowmuch(annotation.compressMessageBodyThreshold() == -1 ? producerConfig.getCompressMessageBodyThreshold() : annotation.compressMessageBodyThreshold());
        producer.setRetryAnotherBrokerWhenNotStoreOK(annotation.retryNextServer());
        producer.setUseTLS(useTLS);
        String namespace = environment.resolvePlaceholders(annotation.namespace());
        producer.setNamespace(RocketMQUtil.getNamespace(namespace, producerConfig.getNamespace()));
        producer.setInstanceName(annotation.instanceName());
        return producer;
    }