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.client.config.listener.impl;
  
  import com.alibaba.nacos.api.config.listener.AbstractListener;
  import com.alibaba.nacos.client.utils.LogUtils;
  import com.alibaba.nacos.client.utils.StringUtils;
  import org.slf4j.Logger;
  
  import java.io.IOException;
  import java.io.StringReader;
  import java.util.Properties;
  
  /**
   * Properties Listener
   *
   * @author Nacos
   */
  @SuppressWarnings("PMD.AbstractClassShouldStartWithAbstractNamingRule")
  public abstract class PropertiesListener extends AbstractListener {
  
      private static final Logger LOGGER = LogUtils.logger(PropertiesListener.class);
  
      @Override
      public void receiveConfigInfo(String configInfo) {
          if (StringUtils.isEmpty(configInfo)) {
              return;
          }
  
          Properties properties = new Properties();
          try {
              properties.load(new StringReader(configInfo));
              innerReceive(properties);
          } catch (IOException e) {
              LOGGER.error("load properties error：" + configInfo, e);
          }
  
      }
  
      /**
       * properties type for receiver
       *
       * @param properties properties
       */
      public abstract void innerReceive(Properties properties);
  
  }
  