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.heartbeat;
  
  import com.alibaba.nacos.common.spi.NacosServiceLoader;
  import com.alibaba.nacos.naming.core.v2.client.impl.IpPortBasedClient;
  import com.alibaba.nacos.naming.core.v2.pojo.HealthCheckInstancePublishInfo;
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  import com.alibaba.nacos.naming.interceptor.Interceptable;
  
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * Instance beat check task.
   *
   * @author xiweng.yy
   */
  public class InstanceBeatCheckTask implements Interceptable {
      
      private static final List<InstanceBeatChecker> CHECKERS = new LinkedList<>();
      
      private final IpPortBasedClient client;
      
      private final Service service;
      
      private final HealthCheckInstancePublishInfo instancePublishInfo;
      
      static {
          CHECKERS.add(new UnhealthyInstanceChecker());
          CHECKERS.add(new ExpiredInstanceChecker());
          CHECKERS.addAll(NacosServiceLoader.load(InstanceBeatChecker.class));
      }
      
      public InstanceBeatCheckTask(IpPortBasedClient client, Service service, HealthCheckInstancePublishInfo instancePublishInfo) {
          this.client = client;
          this.service = service;
          this.instancePublishInfo = instancePublishInfo;
      }
      
      @Override
      public void passIntercept() {
          for (InstanceBeatChecker each : CHECKERS) {
              each.doCheck(client, service, instancePublishInfo);
          }
      }
      
      @Override
      public void afterIntercept() {
      }
      
      public IpPortBasedClient getClient() {
          return client;
      }
      
      public Service getService() {
          return service;
      }
      
      public HealthCheckInstancePublishInfo getInstancePublishInfo() {
          return instancePublishInfo;
      }
  }
  