content: /*
   * Copyright 1999-2021 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.plugin.auth.spi.client;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.common.http.client.NacosRestTemplate;
  import com.alibaba.nacos.common.lifecycle.Closeable;
  import com.alibaba.nacos.common.spi.NacosServiceLoader;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  /**
   * ClientAuthService classLoader.
   *
   * @author wuyfee
   */
  public class ClientAuthPluginManager implements Closeable {
      
      private static final Logger LOGGER = LoggerFactory.getLogger(ClientAuthPluginManager.class);
      
      /**
       * The relationship of context type and {@link ClientAuthService}.
       */
      private final Set<ClientAuthService> clientAuthServiceHashSet = new HashSet<>();
      
      /**
       * init ClientAuthService.
       */
      public void init(List<String> serverList, NacosRestTemplate nacosRestTemplate) {
          
          Collection<AbstractClientAuthService> clientAuthServices = NacosServiceLoader
                  .load(AbstractClientAuthService.class);
          for (ClientAuthService clientAuthService : clientAuthServices) {
              clientAuthService.setServerList(serverList);
              clientAuthService.setNacosRestTemplate(nacosRestTemplate);
              clientAuthServiceHashSet.add(clientAuthService);
              LOGGER.info("[ClientAuthPluginManager] Load ClientAuthService {} success.",
                      clientAuthService.getClass().getCanonicalName());
          }
          if (clientAuthServiceHashSet.isEmpty()) {
              LOGGER.warn("[ClientAuthPluginManager] Load ClientAuthService fail, No ClientAuthService implements");
          }
      }
      
      /**
       * refresh ClientAuthService server list.
       *
       * @param serverList the new server list.
       */
      public void refreshServerList(List<String> serverList) {
          for (ClientAuthService clientAuthService : clientAuthServiceHashSet) {
              clientAuthService.setServerList(serverList);
          }
      }
      
      /**
       * get all ClientAuthService instance.
       *
       * @return ClientAuthService Set.
       */
      public Set<ClientAuthService> getAuthServiceSpiImplSet() {
          return clientAuthServiceHashSet;
      }
      
      @Override
      public void shutdown() throws NacosException {
          for (ClientAuthService each : clientAuthServiceHashSet) {
              each.shutdown();
          }
      }
  }
  