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.Nacos;
  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.common.utils.StringUtils;
  import com.alibaba.nacos.test.base.Params;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.boot.test.web.server.LocalServerPort;
  import org.springframework.http.HttpMethod;
  import org.springframework.http.ResponseEntity;
  
  import java.net.URL;
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  @SpringBootTest(classes = Nacos.class, properties = {
          "server.servlet.context-path=/nacos"}, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
  class ClientBeatNamingITCase extends NamingBase {
      
      private NamingService naming;
      
      @LocalServerPort
      private int port;
      
      @BeforeEach
      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;
          }
          String url = String.format("http://localhost:%d/", port);
          this.base = new URL(url);
      }
      
      @Test
      void testLightBeat() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming.registerInstance(serviceName, "1.2.3.4", 81);
          
          Instance instance = new Instance();
          instance.setIp("1.2.3.4");
          instance.setPort(80);
          instance.addMetadata("k1", "v1");
          instance.addMetadata("k2", "v2");
          naming.registerInstance(serviceName, instance);
          
          TimeUnit.SECONDS.sleep(2L);
          
          List<Instance> list = naming.getAllInstances(serviceName);
          assertEquals(1, list.size());
          for (Instance instance1 : list) {
              assertEquals("1.2.3.4", instance1.getIp());
              assertTrue(instance1.getPort() == 80 || instance1.getPort() == 81);
              if (instance1.getPort() == 80) {
                  assertEquals("v1", instance1.getMetadata().getOrDefault("k1", StringUtils.EMPTY));
                  assertEquals("v2", instance1.getMetadata().getOrDefault("k2", StringUtils.EMPTY));
              }
          }
          
          // Sleep 35 seconds and see if instance list not changed:
          TimeUnit.SECONDS.sleep(35L);
          
          list = naming.getAllInstances(serviceName);
          assertEquals(1, list.size());
          for (Instance instance1 : list) {
              assertEquals("1.2.3.4", instance1.getIp());
              assertTrue(instance1.getPort() == 80 || instance1.getPort() == 81);
              if (instance1.getPort() == 80) {
                  assertEquals("v1", instance1.getMetadata().getOrDefault("k1", StringUtils.EMPTY));
                  assertEquals("v2", instance1.getMetadata().getOrDefault("k2", StringUtils.EMPTY));
              }
          }
          
          // Change the light beat switch of server:
          ResponseEntity<String> response = request(NamingBase.NAMING_CONTROLLER_PATH + "/operator/switches",
                  Params.newParams().appendParam("entry", "lightBeatEnabled").appendParam("value", "false").done(), String.class,
                  HttpMethod.PUT);
          
          assertTrue(response.getStatusCode().is2xxSuccessful());
          
          // Sleep 35 seconds and see if instance list not changed:
          TimeUnit.SECONDS.sleep(35L);
          
          list = naming.getAllInstances(serviceName);
          assertEquals(1, list.size());
          for (Instance instance1 : list) {
              assertEquals("1.2.3.4", instance1.getIp());
              assertTrue(instance1.getPort() == 80 || instance1.getPort() == 81);
              if (instance1.getPort() == 80) {
                  assertEquals("v1", instance1.getMetadata().getOrDefault("k1", StringUtils.EMPTY));
                  assertEquals("v2", instance1.getMetadata().getOrDefault("k2", StringUtils.EMPTY));
              }
          }
          
          // Reset the light beat switch of server:
          response = request(NamingBase.NAMING_CONTROLLER_PATH + "/operator/switches",
                  Params.newParams().appendParam("entry", "lightBeatEnabled").appendParam("value", "true").done(), String.class,
                  HttpMethod.PUT);
          
          assertTrue(response.getStatusCode().is2xxSuccessful());
      }
  }
  