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.test.naming;
  
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.api.naming.NamingFactory;
  import com.alibaba.nacos.api.naming.NamingService;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.client.naming.NacosNamingService;
  import com.alibaba.nacos.client.naming.beat.BeatInfo;
  import com.alibaba.nacos.naming.NamingApp;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.boot.web.server.LocalServerPort;
  import org.springframework.test.context.junit4.SpringRunner;
  
  import java.util.Arrays;
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_PORT;
  import static com.alibaba.nacos.test.naming.NamingBase.randomDomainName;
  
  /**
   * Created by lingwei.cao on 2018/11/13.
   *
   * @author lingwei.cao
   * @date 2018/11/13
   */
  @RunWith(SpringRunner.class)
  @SpringBootTest(classes = NamingApp.class, properties = {"server.servlet.context-path=/nacos"},
      webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
  public class AutoDeregisterInstance_ITCase {
  
      private NamingService naming;
      private NamingService naming2;
      @LocalServerPort
      private int port;
  
      @Before
      public void init() throws Exception {
  
          NamingBase.prepareServer(port);
  
          if (naming == null) {
              naming = NamingFactory.createNamingService("127.0.0.1:" + port);
          }
  
          while (true) {
              if (!"UP".equals(naming.getServerStatus())) {
                  Thread.sleep(1000L);
                  continue;
              }
              break;
          }
      }
  
      /**
       * 指定cluster中（单个、多个）实例，客户端停止上报实例心跳，服务端自动注销实例
       *
       * @throws Exception
       */
      @Test
      public void autoDregDomClustersTest() throws Exception {
          String serviceName = randomDomainName();
  
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT, "c1");
          naming.registerInstance(serviceName, "127.0.0.2", TEST_PORT, "c2");
  
          TimeUnit.SECONDS.sleep(5);
  
          List<Instance> instances;
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(2, instances.size());
  
          NacosNamingService namingServiceImpl = (NacosNamingService) naming;
  
          namingServiceImpl.getBeatReactor().
              removeBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, "127.0.0.1", TEST_PORT);
  
          verifyInstanceList(instances, 1, serviceName);
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(1, instances.size());
  
          instances = naming.getAllInstances(serviceName, Arrays.asList("c2"));
          Assert.assertEquals(instances.size(), 1);
  
          instances = naming.getAllInstances(serviceName, Arrays.asList("c1"));
          Assert.assertEquals(0, instances.size());
      }
  
  
      /**
       * 客户端停止上报实例心跳，服务端自动注销实例
       *
       * @throws Exception
       */
      @Test
      public void autoDregDomTest() throws Exception {
          String serviceName = randomDomainName();
  
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT);
          naming.registerInstance(serviceName, "127.0.0.2", TEST_PORT);
  
          TimeUnit.SECONDS.sleep(5);
  
          List<Instance> instances;
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(2, instances.size());
  
          NacosNamingService namingServiceImpl = (NacosNamingService) naming;
  
          namingServiceImpl.getBeatReactor().
              removeBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, "127.0.0.1", TEST_PORT);
  
          verifyInstanceList(instances, 1, serviceName);
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(1, instances.size());
      }
  
  
      /**
       * 客户端停止上报实例心跳，服务端自动注销实例,恢复心跳，服务端自动注册实例
       *
       * @throws Exception
       */
      @Test
      public void autoRegDomTest() throws Exception {
          String serviceName = randomDomainName();
  
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT);
          naming.registerInstance(serviceName, "127.0.0.2", TEST_PORT);
  
          TimeUnit.SECONDS.sleep(5);
  
          List<Instance> instances;
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(instances.size(), 2);
  
          NacosNamingService namingServiceImpl = (NacosNamingService) naming;
  
          namingServiceImpl.getBeatReactor().
              removeBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, "127.0.0.1", TEST_PORT);
  
          verifyInstanceList(instances, 1, serviceName);
  
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(instances.size(), 1);
          BeatInfo beatInfo = new BeatInfo();
          beatInfo.setServiceName(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName);
          beatInfo.setIp("127.0.0.1");
          beatInfo.setPort(TEST_PORT);
  
          namingServiceImpl.getBeatReactor().
              addBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, beatInfo);
  
          verifyInstanceList(instances, 2, serviceName);
  
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(instances.size(), 2);
      }
  
  
      /**
       * 指定cluster中（单个、多个）实例,客户端停止上报实例心跳，服务端自动注销实例,恢复心跳，服务端自动注册实例
       *
       * @throws Exception
       */
      @Test
      public void autoRegDomClustersTest() throws Exception {
  
          String serviceName = randomDomainName();
  
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT, "c1");
          naming.registerInstance(serviceName, "127.0.0.2", TEST_PORT, "c2");
  
          TimeUnit.SECONDS.sleep(5);
  
          List<Instance> instances;
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(2, instances.size());
  
          NacosNamingService namingServiceImpl = (NacosNamingService) naming;
  
          namingServiceImpl.getBeatReactor().
              removeBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, "127.0.0.1", TEST_PORT);
  
          verifyInstanceList(instances, 1, serviceName);
  
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(1, instances.size());
          BeatInfo beatInfo = new BeatInfo();
          beatInfo.setServiceName(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName);
          beatInfo.setIp("127.0.0.1");
          beatInfo.setPort(TEST_PORT);
          beatInfo.setCluster("c1");
  
          namingServiceImpl.getBeatReactor().
              addBeatInfo(Constants.DEFAULT_GROUP + Constants.SERVICE_INFO_SPLITER + serviceName, beatInfo);
          //TimeUnit.SECONDS.sleep(15);
          verifyInstanceList(instances, 2, serviceName);
  
          instances = naming.getAllInstances(serviceName);
  
          Assert.assertEquals(instances.size(), 2);
  
          instances = naming.getAllInstances(serviceName, Arrays.asList("c2"));
          Assert.assertEquals(1, instances.size());
  
          TimeUnit.SECONDS.sleep(5);
  
          instances = naming.getAllInstances(serviceName, Arrays.asList("c1"));
          Assert.assertEquals(1, instances.size());
      }
  
      public void verifyInstanceList(List<Instance> instances, int size, String serviceName) throws Exception {
          int i = 0;
          while (i < 20) {
              instances = naming.getAllInstances(serviceName);
              if (instances.size() == size) {
                  break;
              } else {
                  TimeUnit.SECONDS.sleep(3);
                  i++;
              }
          }
      }
  
  }
  