content: /*
   * Copyright 1999-2025 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.console.handler.impl.remote;
  
  import com.alibaba.nacos.api.PropertyKeyConst;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.common.notify.NotifyCenter;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.console.cluster.RemoteServerMemberManager;
  import com.alibaba.nacos.core.cluster.Member;
  import com.alibaba.nacos.core.cluster.MemberChangeListener;
  import com.alibaba.nacos.core.cluster.MembersChangeEvent;
  import com.alibaba.nacos.maintainer.client.ai.AiMaintainerFactory;
  import com.alibaba.nacos.maintainer.client.ai.AiMaintainerService;
  import com.alibaba.nacos.maintainer.client.config.ConfigMaintainerFactory;
  import com.alibaba.nacos.maintainer.client.config.ConfigMaintainerService;
  import com.alibaba.nacos.maintainer.client.naming.NamingMaintainerFactory;
  import com.alibaba.nacos.maintainer.client.naming.NamingMaintainerService;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.stereotype.Component;
  
  import java.util.List;
  import java.util.Properties;
  
  /**
   * Nacos maintainer client holder.
   *
   * @author xiweng.yy
   */
  @Component
  @EnabledRemoteHandler
  public class NacosMaintainerClientHolder extends MemberChangeListener {
      
      private static final Logger LOGGER = LoggerFactory.getLogger(NacosMaintainerClientHolder.class);
      
      private final RemoteServerMemberManager memberManager;
      
      private volatile NamingMaintainerService namingMaintainerService;
      
      private volatile ConfigMaintainerService configMaintainerService;
      
      private volatile AiMaintainerService aiMaintainerService;
      
      public NacosMaintainerClientHolder(RemoteServerMemberManager memberManager) throws NacosException {
          this.memberManager = memberManager;
          buildMaintainerService();
          NotifyCenter.registerSubscriber(this);
      }
      
      private void buildMaintainerService() throws NacosException {
          List<String> memberAddress = memberManager.allMembers().stream().map(Member::getAddress).toList();
          String memberAddressString = StringUtils.join(memberAddress, ",");
          Properties properties = new Properties();
          properties.setProperty(PropertyKeyConst.SERVER_ADDR, memberAddressString);
          namingMaintainerService = NamingMaintainerFactory.createNamingMaintainerService(properties);
          configMaintainerService = ConfigMaintainerFactory.createConfigMaintainerService(properties);
          aiMaintainerService = AiMaintainerFactory.createAiMaintainerService(properties);
      }
      
      public NamingMaintainerService getNamingMaintainerService() {
          return namingMaintainerService;
      }
      
      public ConfigMaintainerService getConfigMaintainerService() {
          return configMaintainerService;
      }
      
      public AiMaintainerService getAiMaintainerService() {
          return aiMaintainerService;
      }
      
      @Override
      public void onEvent(MembersChangeEvent event) {
          try {
              buildMaintainerService();
          } catch (NacosException e) {
              LOGGER.warn("Nacos Server members changed, but build new maintain client failed with: ", e);
          }
      }
  }
  