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.core.listener;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
  import org.springframework.context.ApplicationListener;
  import org.springframework.context.annotation.Profile;
  import org.springframework.core.PriorityOrdered;
  import org.springframework.core.env.ConfigurableEnvironment;
  
  import java.util.Arrays;
  
  import static com.alibaba.nacos.core.utils.Constants.STANDALONE_MODE_PROPERTY_NAME;
  import static com.alibaba.nacos.core.utils.Constants.STANDALONE_SPRING_PROFILE;
  import static com.alibaba.nacos.core.utils.SystemUtils.STANDALONE_MODE;
  
  /**
   * Standalone {@link Profile} {@link ApplicationListener} for {@link ApplicationEnvironmentPreparedEvent}
   *
   * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
   * @see ConfigurableEnvironment#addActiveProfile(String)
   * @since 0.2.2
   */
  public class StandaloneProfileApplicationListener implements ApplicationListener<ApplicationEnvironmentPreparedEvent>,
      PriorityOrdered {
  
      private static final Logger logger = LoggerFactory.getLogger(StandaloneProfileApplicationListener.class);
  
      @Override
      public void onApplicationEvent(ApplicationEnvironmentPreparedEvent event) {
  
          ConfigurableEnvironment environment = event.getEnvironment();
  
          if (environment.getProperty(STANDALONE_MODE_PROPERTY_NAME, boolean.class, false)) {
              environment.addActiveProfile(STANDALONE_SPRING_PROFILE);
          }
  
          if (logger.isInfoEnabled()) {
              logger.info("Spring Environment's active profiles : {} in standalone mode : {}",
                  Arrays.asList(environment.getActiveProfiles()),
                  STANDALONE_MODE
              );
          }
  
      }
  
      @Override
      public int getOrder() {
          return HIGHEST_PRECEDENCE;
      }
  }
  