content: /*
   * Copyright 2020-2023 the original author or authors.
   *
   * 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
   *
   *      https://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.jun.mqttx.entity;
  
  import lombok.AllArgsConstructor;
  import lombok.Data;
  import lombok.NoArgsConstructor;
  
  import java.util.List;
  
  /**
   * 客户端订阅或解除订阅消息, 用于集群内部广播
   *
   * @author Jun
   * @since 1.0.4
   */
  @Data
  @AllArgsConstructor
  @NoArgsConstructor
  public class ClientSubOrUnsubMsg {
  
      private String clientId;
  
      private int qos;
  
      private String topic;
  
      private boolean cleanSession;
  
      /**
       * 当 {@code type} == 2, topics 不能为空
       */
      private List<String> topics;
  
      /**
       * Defined in {@link com.jun.mqttx.service.impl.DefaultSubscriptionServiceImpl}
       * <ol>
       *     <li>1 -> 订阅</li>
       *     <li>2 -> 解除客户订阅</li>
       *     <li>3 -> 移除topic</li>
       * </ol>
       */
      private int type;
  }
  