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.spi.NacosServiceLoader;
  import com.alibaba.nacos.naming.healthcheck.v2.processor.HealthCheckProcessorV2;
  import org.springframework.stereotype.Component;
  
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.Iterator;
  import java.util.Set;
  
  /**
   * Health Check Processor Extend V2.
   *
   * @author sunmengying
   */
  @Component
  public class HealthCheckProcessorExtendV2 extends AbstractHealthCheckProcessorExtend {
  
      private final Collection<HealthCheckProcessorV2> processors = NacosServiceLoader.load(HealthCheckProcessorV2.class);
  
      @Override
      public Set<String> addProcessor(Set<String> origin) {
          Iterator<HealthCheckProcessorV2> processorIt = processors.iterator();
          Set<String> processorType = new HashSet<>(origin);
          while (processorIt.hasNext()) {
              HealthCheckProcessorV2 processor = processorIt.next();
              String type = processor.getType();
              if (processorType.contains(type)) {
                  throw new RuntimeException(
                          "More than one processor of the same type was found : [type=\"" + type + "\"]");
              }
              processorType.add(type);
              registry.registerSingleton(lowerFirstChar(processor.getClass().getSimpleName()), processor);
          }
          return processorType;
      }
  }
  