Examples with ConfiguratorRegistration com.alipay.sofa.registry.client.api.registration.ConfiguratorRegistration used on opensource projects

Example 1 with ConfiguratorRegistration

use of com.alipay.sofa.registry.client.api.registration.ConfiguratorRegistration in project sofa-rpc by sofastack.

the class SofaRegistry method subscribe.

@Override
public List<ProviderGroup> subscribe(ConsumerConfig config) {
    ProviderInfoListener providerInfoListener = config.getProviderInfoListener();
    String appName = config.getAppName();
    if (!registryConfig.isSubscribe()) {
        // 注册中心不订阅
        if (LOGGER.isInfoEnabled(appName)) {
            LOGGER.infoWithApp(appName, LogCodes.getLog(LogCodes.INFO_REGISTRY_IGNORE));
        }
        return null;
    }
    if (!config.isSubscribe()) {
        // 服务不订阅
        return null;
    }
    String serviceName = SofaRegistryHelper.buildListDataId(config, config.getProtocol());
    SofaRegistrySubscribeCallback callback;
    Subscriber listSubscriber = subscribers.get(serviceName);
    Configurator attrSubscriber;
    if (listSubscriber != null && providerInfoListener != null) {
        // 已经有人订阅过这个Key，那么地址已经存在了，
        callback = (SofaRegistrySubscribeCallback) listSubscriber.getDataObserver();
        callback.addProviderInfoListener(serviceName, config, providerInfoListener);
        // 使用旧数据通知下
        callback.handleDataToListener(serviceName, config, providerInfoListener);
    } else {
        callback = new SofaRegistrySubscribeCallback();
        callback.addProviderInfoListener(serviceName, config, providerInfoListener);
        // 生成订阅对象，并添加额外属性
        SubscriberRegistration subscriberRegistration = new SubscriberRegistration(serviceName, callback);
        String groupId = config.getParameter(SofaRegistryConstants.SOFA_GROUP_KEY);
        groupId = groupId == null ? SofaRegistryHelper.SUBSCRIBER_LIST_GROUP_ID : groupId;
        addAttributes(subscriberRegistration, groupId);
        ConfiguratorRegistration configRegistration = new ConfiguratorRegistration(serviceName, callback);
        addAttributes(configRegistration, SofaRegistryHelper.SUBSCRIBER_CONFIG_GROUP_ID);
        // 去配置中心订阅
        // 去注册
        listSubscriber = SofaRegistryClient.getRegistryClient(appName, registryConfig).register(subscriberRegistration);
        attrSubscriber = SofaRegistryClient.getRegistryClient(appName, registryConfig).register(configRegistration);
        // 放入缓存
        subscribers.put(serviceName, listSubscriber);
        configurators.put(serviceName, attrSubscriber);
    }
    // 统一走异步获取地址，所以此处返回null
    return null;
}