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.example;
  
  import java.util.Properties;
  import java.util.concurrent.Executor;
  
  import com.alibaba.nacos.api.NacosFactory;
  import com.alibaba.nacos.api.config.ConfigService;
  import com.alibaba.nacos.api.config.listener.Listener;
  import com.alibaba.nacos.api.exception.NacosException;
  
  /**
   * Config service example
   *
   * @author Nacos
   */
  public class ConfigExample {
  
      public static void main(String[] args) throws NacosException, InterruptedException {
          String serverAddr = "localhost";
          String dataId = "test";
          String group = "DEFAULT_GROUP";
          Properties properties = new Properties();
          properties.put("serverAddr", serverAddr);
          ConfigService configService = NacosFactory.createConfigService(properties);
          String content = configService.getConfig(dataId, group, 5000);
          System.out.println(content);
          configService.addListener(dataId, group, new Listener() {
              @Override
              public void receiveConfigInfo(String configInfo) {
                  System.out.println("receive:" + configInfo);
              }
  
              @Override
              public Executor getExecutor() {
                  return null;
              }
          });
  
          boolean isPublishOk = configService.publishConfig(dataId, group, "content");
          System.out.println(isPublishOk);
  
          Thread.sleep(3000);
          content = configService.getConfig(dataId, group, 5000);
          System.out.println(content);
  
          boolean isRemoveOk = configService.removeConfig(dataId, group);
          System.out.println(isRemoveOk);
          Thread.sleep(3000);
  
          content = configService.getConfig(dataId, group, 5000);
          System.out.println(content);
          Thread.sleep(300000);
  
      }
  }
  