content: /*
   * Copyright 1999-2018 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.core.v2.event.service;
  
  import com.alibaba.nacos.common.notify.Event;
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  
  /**
   * Service event.
   *
   * @author xiweng.yy
   */
  public class ServiceEvent extends Event {
      
      private static final long serialVersionUID = -9173247502346692418L;
      
      private final Service service;
      
      public ServiceEvent(Service service) {
          this.service = service;
      }
      
      public Service getService() {
          return service;
      }
      
      /**
       * Service data changed event.
       */
      public static class ServiceChangedEvent extends ServiceEvent {
          
          private static final long serialVersionUID = 2123694271992630822L;
          
          private final String changedType;
          
          public ServiceChangedEvent(Service service, String changedType) {
              this(service, changedType, false);
          }
          
          public ServiceChangedEvent(Service service, String changedType, boolean incrementRevision) {
              super(service);
              this.changedType = changedType;
              service.renewUpdateTime();
              if (incrementRevision) {
                  service.incrementRevision();
              }
          }
          
          public String getChangedType() {
              return changedType;
          }
          
      }
      
      /**
       * Service is subscribed by one client event.
       */
      public static class ServiceSubscribedEvent extends ServiceEvent {
          
          private static final long serialVersionUID = -2645441445867337345L;
          
          private final String clientId;
          
          public ServiceSubscribedEvent(Service service, String clientId) {
              super(service);
              this.clientId = clientId;
          }
          
          public String getClientId() {
              return clientId;
          }
      }
      
  }
  