content: /*
   * Copyright 1999-2022 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.v2;
  
  import com.alibaba.nacos.api.annotation.NacosApi;
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.exception.api.NacosApiException;
  import com.alibaba.nacos.api.model.v2.ErrorCode;
  import com.alibaba.nacos.api.model.v2.Result;
  import com.alibaba.nacos.api.naming.pojo.maintainer.ServiceDetailInfo;
  import com.alibaba.nacos.api.selector.Selector;
  import com.alibaba.nacos.auth.annotation.Secured;
  import com.alibaba.nacos.common.notify.NotifyCenter;
  import com.alibaba.nacos.common.trace.event.naming.DeregisterServiceTraceEvent;
  import com.alibaba.nacos.common.trace.event.naming.RegisterServiceTraceEvent;
  import com.alibaba.nacos.common.trace.event.naming.UpdateServiceTraceEvent;
  import com.alibaba.nacos.common.utils.JacksonUtils;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.core.control.TpsControl;
  import com.alibaba.nacos.core.controller.compatibility.Compatibility;
  import com.alibaba.nacos.core.paramcheck.ExtractorManager;
  import com.alibaba.nacos.naming.core.ServiceOperatorV2Impl;
  import com.alibaba.nacos.naming.core.v2.metadata.ServiceMetadata;
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  import com.alibaba.nacos.naming.misc.UtilsAndCommons;
  import com.alibaba.nacos.naming.model.form.ServiceForm;
  import com.alibaba.nacos.naming.paramcheck.NamingDefaultHttpParamExtractor;
  import com.alibaba.nacos.naming.pojo.ServiceNameView;
  import com.alibaba.nacos.naming.selector.NoneSelector;
  import com.alibaba.nacos.naming.selector.SelectorManager;
  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.JsonNode;
  import org.springframework.web.bind.annotation.DeleteMapping;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.PostMapping;
  import org.springframework.web.bind.annotation.PutMapping;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestParam;
  import org.springframework.web.bind.annotation.RestController;
  
  import java.net.URLDecoder;
  import java.util.Collection;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Optional;
  
  /**
   * Service operation controller.
   *
   * @author nkorange
   */
  @Deprecated
  @NacosApi
  @RestController
  @RequestMapping(UtilsAndCommons.DEFAULT_NACOS_NAMING_CONTEXT_V2 + UtilsAndCommons.NACOS_NAMING_SERVICE_CONTEXT)
  @ExtractorManager.Extractor(httpExtractor = NamingDefaultHttpParamExtractor.class)
  public class ServiceControllerV2 {
      
      private final ServiceOperatorV2Impl serviceOperatorV2;
      
      private final SelectorManager selectorManager;
      
      public ServiceControllerV2(ServiceOperatorV2Impl serviceOperatorV2, SelectorManager selectorManager) {
          this.serviceOperatorV2 = serviceOperatorV2;
          this.selectorManager = selectorManager;
      }
      
      /**
       * Create a new service. This API will create a persistence service.
       */
      @PostMapping()
      @TpsControl(pointName = "NamingServiceRegister", name = "HttpNamingServiceRegister")
      @Secured(action = ActionTypes.WRITE)
      @Compatibility(apiType = ApiType.ADMIN_API, alternatives = "POST ${contextPath:nacos}/v3/admin/ns/service")
      public Result<String> create(ServiceForm serviceForm) throws Exception {
          serviceForm.validate();
          ServiceMetadata serviceMetadata = new ServiceMetadata();
          serviceMetadata.setProtectThreshold(serviceForm.getProtectThreshold());
          serviceMetadata.setSelector(parseSelector(serviceForm.getSelector()));
          serviceMetadata.setExtendData(UtilsAndCommons.parseMetadata(serviceForm.getMetadata()));
          serviceMetadata.setEphemeral(serviceForm.getEphemeral());
          serviceOperatorV2.create(Service.newService(serviceForm.getNamespaceId(), serviceForm.getGroupName(),
                  serviceForm.getServiceName(), serviceForm.getEphemeral()), serviceMetadata);
          NotifyCenter.publishEvent(
                  new RegisterServiceTraceEvent(System.currentTimeMillis(), serviceForm.getNamespaceId(),
                          serviceForm.getGroupName(), serviceForm.getServiceName()));
          return Result.success("ok");
      }
      
      /**
       * Remove service.
       */
      @DeleteMapping()
      @TpsControl(pointName = "NamingServiceDeregister", name = "HttpNamingServiceDeregister")
      @Secured(action = ActionTypes.WRITE)
      @Compatibility(apiType = ApiType.ADMIN_API, alternatives = "DELETE ${contextPath:nacos}/v3/admin/ns/service")
      public Result<String> remove(
              @RequestParam(value = "namespaceId", defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              @RequestParam("serviceName") String serviceName,
              @RequestParam(value = "groupName", defaultValue = Constants.DEFAULT_GROUP) String groupName)
              throws Exception {
          serviceOperatorV2.delete(Service.newService(namespaceId, groupName, serviceName));
          NotifyCenter.publishEvent(
                  new DeregisterServiceTraceEvent(System.currentTimeMillis(), namespaceId, groupName, serviceName));
          return Result.success("ok");
      }
      
      /**
       * Get detail of service.
       */
      @GetMapping()
      @TpsControl(pointName = "NamingServiceQuery", name = "HttpNamingServiceQuery")
      @Secured(action = ActionTypes.READ)
      @Compatibility(apiType = ApiType.ADMIN_API, alternatives = "GET ${contextPath:nacos}/v3/admin/ns/service")
      public Result<com.alibaba.nacos.naming.pojo.ServiceDetailInfo> detail(
              @RequestParam(value = "namespaceId", defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              @RequestParam("serviceName") String serviceName,
              @RequestParam(value = "groupName", defaultValue = Constants.DEFAULT_GROUP) String groupName)
              throws Exception {
          ServiceDetailInfo serviceDetailInfo = serviceOperatorV2.queryService(
                  Service.newService(namespaceId, groupName, serviceName));
          com.alibaba.nacos.naming.pojo.ServiceDetailInfo result = com.alibaba.nacos.naming.pojo.ServiceDetailInfo.from(
                  serviceDetailInfo);
          return Result.success(result);
      }
      
      /**
       * List all service names.
       */
      @GetMapping("/list")
      @TpsControl(pointName = "NamingServiceListQuery", name = "HttpNamingServiceListQuery")
      @Secured(action = ActionTypes.READ)
      @Compatibility(apiType = ApiType.ADMIN_API, alternatives = "GET ${contextPath:nacos}/v3/admin/ns/service/list")
      public Result<ServiceNameView> list(
              @RequestParam(value = "namespaceId", required = false, defaultValue = Constants.DEFAULT_NAMESPACE_ID) String namespaceId,
              @RequestParam(value = "groupName", required = false, defaultValue = Constants.DEFAULT_GROUP) String groupName,
              @RequestParam(value = "selector", required = false, defaultValue = StringUtils.EMPTY) String selector,
              @RequestParam(value = "pageNo", required = false, defaultValue = "1") Integer pageNo,
              @RequestParam(value = "pageSize", required = false, defaultValue = "20") Integer pageSize)
              throws Exception {
          pageSize = Math.min(500, pageSize);
          ServiceNameView result = new ServiceNameView();
          Collection<String> serviceNameList = serviceOperatorV2.listService(namespaceId, groupName, selector);
          result.setCount(serviceNameList.size());
          result.setServices(ServiceUtil.pageServiceName(pageNo, pageSize, serviceNameList));
          return Result.success(result);
      }
      
      /**
       * Update service.
       */
      @PutMapping()
      @TpsControl(pointName = "NamingServiceUpdate", name = "HttpNamingServiceUpdate")
      @Secured(action = ActionTypes.WRITE)
      @Compatibility(apiType = ApiType.ADMIN_API, alternatives = "PUT ${contextPath:nacos}/v3/admin/ns/service")
      public Result<String> update(ServiceForm serviceForm) throws Exception {
          serviceForm.validate();
          Map<String, String> metadata = UtilsAndCommons.parseMetadata(serviceForm.getMetadata());
          ServiceMetadata serviceMetadata = new ServiceMetadata();
          serviceMetadata.setProtectThreshold(serviceForm.getProtectThreshold());
          serviceMetadata.setExtendData(metadata);
          serviceMetadata.setSelector(parseSelector(serviceForm.getSelector()));
          Service service = Service.newService(serviceForm.getNamespaceId(), serviceForm.getGroupName(),
                  serviceForm.getServiceName());
          serviceOperatorV2.update(service, serviceMetadata);
          NotifyCenter.publishEvent(new UpdateServiceTraceEvent(System.currentTimeMillis(), serviceForm.getNamespaceId(),
                  serviceForm.getGroupName(), serviceForm.getServiceName(), metadata));
          return Result.success("ok");
      }
      
      private Selector parseSelector(String selectorJsonString) throws Exception {
          if (StringUtils.isBlank(selectorJsonString)) {
              return new NoneSelector();
          }
          
          JsonNode selectorJson = JacksonUtils.toObj(URLDecoder.decode(selectorJsonString, "UTF-8"));
          String type = Optional.ofNullable(selectorJson.get("type")).orElseThrow(
                  () -> new NacosApiException(NacosException.INVALID_PARAM, ErrorCode.SELECTOR_ERROR,
                          "not match any type of selector!")).asText();
          String expression = Optional.ofNullable(selectorJson.get("expression")).map(JsonNode::asText).orElse(null);
          Selector selector = selectorManager.parseSelector(type, expression);
          if (Objects.isNull(selector)) {
              throw new NacosApiException(NacosException.INVALID_PARAM, ErrorCode.SELECTOR_ERROR,
                      "not match any type of selector!");
          }
          return selector;
      }
  }
  