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.console.controller;
  
  import com.alibaba.nacos.console.paramcheck.ConsoleDefaultHttpParamExtractor;
  import com.alibaba.nacos.core.cluster.health.ModuleHealthCheckerHolder;
  import com.alibaba.nacos.core.cluster.health.ReadinessResult;
  import com.alibaba.nacos.core.controller.compatibility.Compatibility;
  import com.alibaba.nacos.core.paramcheck.ExtractorManager;
  import com.alibaba.nacos.plugin.auth.constant.ApiType;
  import org.springframework.http.HttpStatus;
  import org.springframework.http.ResponseEntity;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  import jakarta.servlet.http.HttpServletRequest;
  
  /**
   * Health Controller.
   *
   * @author <a href="mailto:huangxiaoyu1018@gmail.com">hxy1991</a>
   */
  @RestController("consoleHealth")
  @RequestMapping("/v1/console/health")
  @ExtractorManager.Extractor(httpExtractor = ConsoleDefaultHttpParamExtractor.class)
  public class HealthController {
      
      /**
       * Whether the Nacos is in broken states or not, and cannot recover except by being restarted.
       *
       * @return HTTP code equal to 200 indicates that Nacos is in right states. HTTP code equal to 500 indicates that
       * Nacos is in broken states.
       */
      @GetMapping("/liveness")
      @Compatibility(apiType = ApiType.CONSOLE_API, alternatives = "GET ${contextPath:nacos}/v3/console/health/liveness")
      public ResponseEntity<String> liveness() {
          return ResponseEntity.ok().body("OK");
      }
      
      /**
       * Ready to receive the request or not.
       *
       * @return HTTP code equal to 200 indicates that Nacos is ready. HTTP code equal to 500 indicates that Nacos is not
       * ready.
       */
      @GetMapping("/readiness")
      @Compatibility(apiType = ApiType.CONSOLE_API, alternatives = "GET ${contextPath:nacos}/v3/console/health/readiness")
      public ResponseEntity<String> readiness(HttpServletRequest request) {
          ReadinessResult result = ModuleHealthCheckerHolder.getInstance().checkReadiness();
          if (result.isSuccess()) {
              return ResponseEntity.ok().body("OK");
          }
          return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(result.getResultMessage());
      }
      
  }
  