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关于mq:mq从零开始实现-mq08配置优化-fluent

jiezi

前景回顾

【mq】从零开始实现 mq-01- 生产者、消费者启动

【mq】从零开始实现 mq-02- 如何实现生产者调用消费者？

【mq】从零开始实现 mq-03- 引入 broker 中间人

【mq】从零开始实现 mq-04- 启动检测与实现优化

【mq】从零开始实现 mq-05- 实现优雅停机

【mq】从零开始实现 mq-06- 消费者心跳检测 heartbeat

【mq】从零开始实现 mq-07- 负载平衡 load balance

【mq】从零开始实现 mq-08- 配置优化 fluent

fluent

大家好，我是老马。

fluent 的配置形式，是我集体十分喜爱的一种配置形式。

传统的 java 应用 get/set 办法进行属性设置。

相似这种：

MqBroker  mqBroker = new MqBroker();
mqBroker.setPort(9999);
mqBroker.setAddress("127.0.0.1");

fluent 写法能够让咱们写起来代码更加晦涩：

MqBroker.newInstance()
.port(9999)
.address("127.0.0.1")

写起来更加丝滑晦涩。

Broker 配置

属性 

/**
 * 端口号
 */
private int port = BrokerConst.DEFAULT_PORT;
/**
 * 调用治理类
 *
 * @since 1.0.0
 */
private final IInvokeService invokeService = new InvokeService();
/**
 * 消费者治理
 *
 * @since 0.0.3
 */
private IBrokerConsumerService registerConsumerService = new LocalBrokerConsumerService();
/**
 * 生产者治理
 *
 * @since 0.0.3
 */
private IBrokerProducerService registerProducerService = new LocalBrokerProducerService();
/**
 * 长久化类
 *
 * @since 0.0.3
 */
private IMqBrokerPersist mqBrokerPersist = new LocalMqBrokerPersist();
/**
 * 推送服务
 *
 * @since 0.0.3
 */
private IBrokerPushService brokerPushService = new BrokerPushService();
/**
 * 获取响应超时工夫
 * @since 0.0.3
 */
private long respTimeoutMills = 5000;
/**
 * 负载平衡
 * @since 0.0.7
 */
private ILoadBalance<ConsumerSubscribeBo> loadBalance = LoadBalances.weightRoundRobbin();
/**
 * 推送最大尝试次数
 * @since 0.0.8
 */
private int pushMaxAttempt = 3;

flent 配置 

public MqBroker port(int port) {
    this.port = port;
    return this;
}

public MqBroker registerConsumerService(IBrokerConsumerService registerConsumerService) {
    this.registerConsumerService = registerConsumerService;
    return this;
}

public MqBroker registerProducerService(IBrokerProducerService registerProducerService) {
    this.registerProducerService = registerProducerService;
    return this;
}

public MqBroker mqBrokerPersist(IMqBrokerPersist mqBrokerPersist) {
    this.mqBrokerPersist = mqBrokerPersist;
    return this;
}

public MqBroker brokerPushService(IBrokerPushService brokerPushService) {
    this.brokerPushService = brokerPushService;
    return this;
}

public MqBroker respTimeoutMills(long respTimeoutMills) {
    this.respTimeoutMills = respTimeoutMills;
    return this;
}

public MqBroker loadBalance(ILoadBalance<ConsumerSubscribeBo> loadBalance) {
    this.loadBalance = loadBalance;
    return this;
}

Producer 配置

属性 

/**
 * 分组名称
 */
private String groupName = ProducerConst.DEFAULT_GROUP_NAME;
/**
 * 中间人地址
 */
private String brokerAddress  = "127.0.0.1:9999";
/**
 * 获取响应超时工夫
 * @since 0.0.2
 */
private long respTimeoutMills = 5000;
/**
 * 检测 broker 可用性
 * @since 0.0.4
 */
private volatile boolean check = true;
/**
 * 调用治理服务
 * @since 0.0.2
 */
private final IInvokeService invokeService = new InvokeService();
/**
 * 状态治理类
 * @since 0.0.5
 */
private final IStatusManager statusManager = new StatusManager();
/**
 * 生产者 - 两头服务端服务类
 * @since 0.0.5
 */
private final IProducerBrokerService producerBrokerService = new ProducerBrokerService();
/**
 * 为残余的申请等待时间
 * @since 0.0.5
 */
private long waitMillsForRemainRequest = 60 * 1000;
/**
 * 负载平衡策略
 * @since 0.0.7
 */
private ILoadBalance<RpcChannelFuture> loadBalance = LoadBalances.weightRoundRobbin();
/**
 * 音讯发送最大尝试次数
 * @since 0.0.8
 */
private int maxAttempt = 3;

fluent 配置 

public MqProducer groupName(String groupName) {
    this.groupName = groupName;
    return this;
}

public MqProducer brokerAddress(String brokerAddress) {
    this.brokerAddress = brokerAddress;
    return this;
}

public MqProducer respTimeoutMills(long respTimeoutMills) {
    this.respTimeoutMills = respTimeoutMills;
    return this;
}

public MqProducer check(boolean check) {
    this.check = check;
    return this;
}

public MqProducer waitMillsForRemainRequest(long waitMillsForRemainRequest) {
    this.waitMillsForRemainRequest = waitMillsForRemainRequest;
    return this;
}

public MqProducer loadBalance(ILoadBalance<RpcChannelFuture> loadBalance) {
    this.loadBalance = loadBalance;
    return this;
}

public MqProducer maxAttempt(int maxAttempt) {
    this.maxAttempt = maxAttempt;
    return this;
}

Consuemr 配置

属性 

/**
 * 组名称
 */
private String groupName = ConsumerConst.DEFAULT_GROUP_NAME;
/**
 * 中间人地址
 */
private String brokerAddress  = "127.0.0.1:9999";
/**
 * 获取响应超时工夫
 * @since 0.0.2
 */
private long respTimeoutMills = 5000;
/**
 * 检测 broker 可用性
 * @since 0.0.4
 */
private volatile boolean check = true;
/**
 * 为残余的申请等待时间
 * @since 0.0.5
 */
private long waitMillsForRemainRequest = 60 * 1000;
/**
 * 调用治理类
 *
 * @since 1.0.0
 */
private final IInvokeService invokeService = new InvokeService();
/**
 * 音讯监听服务类
 * @since 0.0.5
 */
private final IMqListenerService mqListenerService = new MqListenerService();
/**
 * 状态治理类
 * @since 0.0.5
 */
private final IStatusManager statusManager = new StatusManager();
/**
 * 生产者 - 两头服务端服务类
 * @since 0.0.5
 */
private final IConsumerBrokerService consumerBrokerService = new ConsumerBrokerService();
/**
 * 负载平衡策略
 * @since 0.0.7
 */
private ILoadBalance<RpcChannelFuture> loadBalance = LoadBalances.weightRoundRobbin();
/**
 * 订阅最大尝试次数
 * @since 0.0.8
 */
private int subscribeMaxAttempt = 3;
/**
 * 勾销订阅最大尝试次数
 * @since 0.0.8
 */
private int unSubscribeMaxAttempt = 3;

fluent 配置 

public MqConsumerPush subscribeMaxAttempt(int subscribeMaxAttempt) {
    this.subscribeMaxAttempt = subscribeMaxAttempt;
    return this;
}

public MqConsumerPush unSubscribeMaxAttempt(int unSubscribeMaxAttempt) {
    this.unSubscribeMaxAttempt = unSubscribeMaxAttempt;
    return this;
}

public MqConsumerPush groupName(String groupName) {
    this.groupName = groupName;
    return this;
}

public MqConsumerPush brokerAddress(String brokerAddress) {
    this.brokerAddress = brokerAddress;
    return this;
}

public MqConsumerPush respTimeoutMills(long respTimeoutMills) {
    this.respTimeoutMills = respTimeoutMills;
    return this;
}

public MqConsumerPush check(boolean check) {
    this.check = check;
    return this;
}

public MqConsumerPush waitMillsForRemainRequest(long waitMillsForRemainRequest) {
    this.waitMillsForRemainRequest = waitMillsForRemainRequest;
    return this;
}

public MqConsumerPush loadBalance(ILoadBalance<RpcChannelFuture> loadBalance) {
    this.loadBalance = loadBalance;
    return this;
}

小结

这一节的实现非常简单，能够说是没有啥技术难度。

只是为了让使用者更加不便。

心愿本文对你有所帮忙，如果喜爱，欢送点赞珍藏转发一波。

我是老马，期待与你的下次重逢。

开源地址

The message queue in java.(java 繁难版本 mq 实现) https://github.com/houbb/mq

拓展浏览

rpc- 从零开始实现 rpc https://github.com/houbb/rpc

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