content: /*
   * Copyright 1999-2020 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.naming.push;
  
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  import com.alibaba.nacos.naming.pojo.Subscriber;
  
  import java.util.Collection;
  
  /**
   * Naming subscriber service.
   *
   * @author xiweng.yy
   */
  public interface NamingSubscriberService {
      
      /**
       * Get all push target subscribers for specified service.
       * TODO use {@link com.alibaba.nacos.api.naming.pojo.maintainer.SubscriberInfo} replaced return
       *
       * @param namespaceId namespace id
       * @param serviceName service name
       * @return list of subscribers
       */
      Collection<Subscriber> getSubscribers(String namespaceId, String serviceName);
      
      /**
       * Get all push target subscribers for specified service.
       * TODO use {@link com.alibaba.nacos.api.naming.pojo.maintainer.SubscriberInfo} replaced return
       *
       * @param service {@link Service}
       * @return list of subscribers
       */
      Collection<Subscriber> getSubscribers(Service service);
      
      /**
       * Fuzzy get subscribers. Only support fuzzy serviceName.
       *
       * <p>Warning: This method cost much performance, use less.
       * TODO use {@link com.alibaba.nacos.api.naming.pojo.maintainer.SubscriberInfo} replaced return
       *
       * @param namespaceId namespace id
       * @param serviceName fuzzy serviceName
       * @return list of subscribers
       */
      Collection<Subscriber> getFuzzySubscribers(String namespaceId, String serviceName);
      
      /**
       * Fuzzy get subscribers. Only support fuzzy serviceName.
       *
       * <p>Warning: This method cost much performance, use less.
       * TODO use {@link com.alibaba.nacos.api.naming.pojo.maintainer.SubscriberInfo} replaced return
       *
       * @param service {@link Service}
       * @return list of subscribers
       */
      Collection<Subscriber> getFuzzySubscribers(Service service);
  }
  