content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * 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 me.ahoo.cosid.spring.boot.starter.machine;
  
  import me.ahoo.cosid.machine.HostAddressSupplier;
  import me.ahoo.cosid.machine.LocalHostAddressSupplier;
  import me.ahoo.cosid.spring.boot.starter.ConditionalOnCosIdEnabled;
  
  import org.springframework.boot.autoconfigure.AutoConfiguration;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.cloud.commons.util.InetUtils;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  
  @AutoConfiguration(afterName = "org.springframework.cloud.commons.util.UtilAutoConfiguration")
  @ConditionalOnCosIdEnabled
  public class CosIdHostNameAutoConfiguration {
      
      @Bean
      @ConditionalOnMissingBean
      public HostAddressSupplier hostNameSupplier() {
          return LocalHostAddressSupplier.INSTANCE;
      }
      
      @Configuration
      @ConditionalOnClass(InetUtils.class)
      static class CloudUtilInstanceIdConfiguration {
          @Bean
          @ConditionalOnBean(InetUtils.class)
          public HostAddressSupplier hostNameSupplier(InetUtils inetUtils) {
              return new CloudUtilHostAddressSupplier(inetUtils);
          }
      }
      
      static class CloudUtilHostAddressSupplier implements HostAddressSupplier {
          private final InetUtils inetUtils;
          
          CloudUtilHostAddressSupplier(InetUtils inetUtils) {
              this.inetUtils = inetUtils;
          }
          
          @Override
          public String getHostAddress() {
              return inetUtils.findFirstNonLoopbackHostInfo().getIpAddress();
          }
      }
  }
  