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.naming.healthcheck.extend;
  
  import com.alibaba.nacos.common.utils.StringUtils;
  import org.springframework.beans.BeansException;
  import org.springframework.beans.factory.BeanFactory;
  import org.springframework.beans.factory.BeanFactoryAware;
  import org.springframework.beans.factory.config.SingletonBeanRegistry;
  
  import java.util.Set;
  
  /**
   * Abstract Health Check Processor Extend.
   *
   * @author sunmengying
   */
  public abstract class AbstractHealthCheckProcessorExtend implements BeanFactoryAware {
  
      protected SingletonBeanRegistry registry;
  
      /**
       * Add HealthCheckProcessorV2.
       *
       * @param origin Origin Checker Type
       * @return Extend Processor Type
       */
      abstract Set<String> addProcessor(Set<String> origin);
  
      protected String lowerFirstChar(String simpleName) {
          if (StringUtils.isBlank(simpleName)) {
              throw new IllegalArgumentException("can't find extend processor class name");
          }
          return String.valueOf(simpleName.charAt(0)).toLowerCase() + simpleName.substring(1);
      }
  
      @Override
      public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
          if (beanFactory instanceof SingletonBeanRegistry) {
              this.registry = (SingletonBeanRegistry) beanFactory;
          }
      }
  }
  