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.controllers;
  
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.model.Page;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.api.naming.pojo.maintainer.ServiceDetailInfo;
  import com.alibaba.nacos.api.naming.utils.NamingUtils;
  import com.alibaba.nacos.auth.annotation.Secured;
  import com.alibaba.nacos.common.utils.JacksonUtils;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.core.controller.compatibility.Compatibility;
  import com.alibaba.nacos.core.paramcheck.ExtractorManager;
  import com.alibaba.nacos.naming.core.CatalogService;
  import com.alibaba.nacos.naming.core.CatalogServiceV2Impl;
  import com.alibaba.nacos.naming.misc.UtilsAndCommons;
  import com.alibaba.nacos.naming.paramcheck.NamingDefaultHttpParamExtractor;
  import com.alibaba.nacos.naming.utils.ServiceUtil;
  import com.alibaba.nacos.plugin.auth.constant.ActionTypes;
  import com.alibaba.nacos.plugin.auth.constant.ApiType;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestParam;
  import org.springframework.web.bind.annotation.RestController;
  
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * Catalog controller.
   *
   * @author nkorange
   */
  @Deprecated
  @RestController
  @RequestMapping(UtilsAndCommons.NACOS_NAMING_CONTEXT + UtilsAndCommons.NACOS_NAMING_CATALOG_CONTEXT)
  @ExtractorManager.Extractor(httpExtractor = NamingDefaultHttpParamExtractor.class)
  public class CatalogController {
      
      @Autowired
      private CatalogServiceV2Impl catalogServiceV2;
      
      /**
       * Get service detail.
       *
       * @param namespaceId namespace id
       * @param serviceName service name
       * @return service detail information
       * @throws NacosException nacos exception
       */
      @Secured(action = ActionTypes.READ)
      @GetMapping("/service")
      @Compatibility(apiType = ApiType.CONSOLE_API, alternatives = "GET ${contextPath:nacos}/v3/console/ns/service")
      public Object serviceDetail(@RequestParam(defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              String serviceName) throws NacosException {
          String serviceNameWithoutGroup = NamingUtils.getServiceName(serviceName);
          String groupName = NamingUtils.getGroupName(serviceName);
          ServiceDetailInfo result = judgeCatalogService().getServiceDetail(namespaceId, groupName, serviceNameWithoutGroup);
          return ServiceUtil.transferToConsoleResult(result);
      }
      
      /**
       * List instances of special service.
       *
       * @param namespaceId namespace id
       * @param serviceName service name
       * @param clusterName cluster name
       * @param page        number of page
       * @param pageSize    size of each page
       * @return instances information
       * @throws NacosException nacos exception
       */
      @Secured(action = ActionTypes.READ)
      @RequestMapping(value = "/instances")
      @Compatibility(apiType = ApiType.CONSOLE_API, alternatives = "GET ${contextPath:nacos}/v3/console/ns/instance/list")
      public ObjectNode instanceList(@RequestParam(defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              @RequestParam String serviceName, @RequestParam String clusterName, @RequestParam(name = "pageNo") int page,
              @RequestParam int pageSize) throws NacosException {
          String serviceNameWithoutGroup = NamingUtils.getServiceName(serviceName);
          String groupName = NamingUtils.getGroupName(serviceName);
          List<? extends Instance> instances = judgeCatalogService().listInstances(namespaceId, groupName,
                  serviceNameWithoutGroup, clusterName);
          int start = (page - 1) * pageSize;
          int end = page * pageSize;
          
          if (start < 0) {
              start = 0;
          }
          
          if (start > instances.size()) {
              start = instances.size();
          }
          
          if (end > instances.size()) {
              end = instances.size();
          }
          
          ObjectNode result = JacksonUtils.createEmptyJsonNode();
          result.replace("list", JacksonUtils.transferToJsonNode(instances.subList(start, end)));
          result.put("count", instances.size());
          
          return result;
      }
      
      /**
       * List service detail information.
       *
       * @param withInstances     whether return instances
       * @param namespaceId       namespace id
       * @param pageNo            number of page
       * @param pageSize          size of each page
       * @param serviceName       service name
       * @param groupName         group name
       * @param containedInstance instance name pattern which will be contained in detail
       * @param hasIpCount        whether filter services with empty instance
       * @return list service detail
       */
      @Secured(action = ActionTypes.READ)
      @GetMapping("/services")
      @Compatibility(apiType = ApiType.CONSOLE_API, alternatives = "GET ${contextPath:nacos}/v3/console/ns/service/list")
      public Object listDetail(@RequestParam(required = false) boolean withInstances,
              @RequestParam(defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              @RequestParam(required = false) int pageNo, @RequestParam(required = false) int pageSize,
              @RequestParam(name = "serviceNameParam", defaultValue = StringUtils.EMPTY) String serviceName,
              @RequestParam(name = "groupNameParam", defaultValue = StringUtils.EMPTY) String groupName,
              @RequestParam(name = "instance", defaultValue = StringUtils.EMPTY) String containedInstance,
              @RequestParam(required = false) boolean hasIpCount) throws NacosException {
          
          if (withInstances) {
              Page<ServiceDetailInfo> serviceDetailInfo = judgeCatalogService().pageListServiceDetail(
                      namespaceId, groupName, serviceName, pageNo, pageSize);
              List<com.alibaba.nacos.naming.pojo.ServiceDetailInfo> result = new LinkedList<>();
              for (ServiceDetailInfo each : serviceDetailInfo.getPageItems()) {
                  result.add(com.alibaba.nacos.naming.pojo.ServiceDetailInfo.from(each));
              }
              return result;
          }
          return judgeCatalogService().pageListService(namespaceId, groupName, serviceName, pageNo, pageSize,
                  containedInstance, hasIpCount);
      }
      
      private CatalogService judgeCatalogService() {
          return catalogServiceV2;
      }
  }
  