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 com.alibaba.nacos.core.listener.startup.NacosStartUp;
  import com.alibaba.nacos.core.listener.startup.NacosStartUpManager;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.context.ConfigurableApplicationContext;
  import org.springframework.core.env.ConfigurableEnvironment;
  
  import java.nio.file.Paths;
  
  /**
   * init environment config.
   *
   * @author <a href="mailto:huangxiaoyu1018@gmail.com">hxy1991</a>
   * @since 0.5.0
   */
  public class StartingApplicationListener implements NacosApplicationListener {
      
      private static final Logger LOGGER = LoggerFactory.getLogger(StartingApplicationListener.class);
      
      @Override
      public void starting() {
          NacosStartUpManager.getCurrentStartUp().starting();
      }
      
      @Override
      public void environmentPrepared(ConfigurableEnvironment environment) {
          NacosStartUp currentStartUp = NacosStartUpManager.getCurrentStartUp();
          currentStartUp.makeWorkDir();
          currentStartUp.injectEnvironment(environment);
          currentStartUp.loadPreProperties(environment);
          currentStartUp.initSystemProperty();
      }
      
      @Override
      public void contextPrepared(ConfigurableApplicationContext context) {
          NacosStartUpManager.getCurrentStartUp().logStartingInfo(LOGGER);
      }
      
      @Override
      public void contextLoaded(ConfigurableApplicationContext context) {
          NacosStartUpManager.getCurrentStartUp().customEnvironment();
      }
      
      @Override
      public void started(ConfigurableApplicationContext context) {
          NacosStartUp currentStartUp = NacosStartUpManager.getCurrentStartUp();
          currentStartUp.started();
          currentStartUp.logStarted(LOGGER);
      }
      
      @Override
      public void failed(ConfigurableApplicationContext context, Throwable exception) {
          for (NacosStartUp each : NacosStartUpManager.getReverseStartedList()) {
              each.failed(exception, context);
          }
          LOGGER.error("Startup errors : ", exception);
          LOGGER.error("Nacos failed to start, please see {} for more details.",
                  Paths.get(EnvUtil.getNacosHome(), "logs/nacos.log"));
      }
  }
  