content: /*
   * Copyright 1999-2025 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.ai.remote.handler;
  
  import com.alibaba.nacos.ai.index.McpServerIndex;
  import com.alibaba.nacos.ai.model.mcp.McpServerIndexData;
  import com.alibaba.nacos.ai.service.McpServerOperationService;
  import com.alibaba.nacos.ai.utils.McpRequestUtil;
  import com.alibaba.nacos.api.ai.model.mcp.McpServerDetailInfo;
  import com.alibaba.nacos.api.ai.remote.request.QueryMcpServerRequest;
  import com.alibaba.nacos.api.ai.remote.response.QueryMcpServerResponse;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.remote.request.RequestMeta;
  import com.alibaba.nacos.auth.annotation.Secured;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.core.namespace.filter.NamespaceValidation;
  import com.alibaba.nacos.core.paramcheck.ExtractorManager;
  import com.alibaba.nacos.core.paramcheck.impl.McpServerRequestParamExtractor;
  import com.alibaba.nacos.core.remote.RequestHandler;
  import com.alibaba.nacos.plugin.auth.constant.ActionTypes;
  import com.alibaba.nacos.plugin.auth.constant.SignType;
  import org.springframework.stereotype.Component;
  
  /**
   * Nacos AI module query mcp request handler.
   *
   * @author xiweng.yy
   */
  @Component
  public class QueryMcpServerRequestHandler extends RequestHandler<QueryMcpServerRequest, QueryMcpServerResponse> {
      
      private final McpServerOperationService mcpServerOperationService;
      
      private final McpServerIndex mcpServerIndex;
      
      public QueryMcpServerRequestHandler(McpServerOperationService mcpServerOperationService,
              McpServerIndex mcpServerIndex) {
          this.mcpServerOperationService = mcpServerOperationService;
          this.mcpServerIndex = mcpServerIndex;
      }
      
      @Override
      @NamespaceValidation
      @ExtractorManager.Extractor(rpcExtractor = McpServerRequestParamExtractor.class)
      @Secured(action = ActionTypes.READ, signType = SignType.AI)
      public QueryMcpServerResponse handle(QueryMcpServerRequest request, RequestMeta meta) throws NacosException {
          McpRequestUtil.fillNamespaceId(request);
          if (StringUtils.isBlank(request.getMcpName())) {
              QueryMcpServerResponse errorResponse = new QueryMcpServerResponse();
              errorResponse.setErrorInfo(NacosException.INVALID_PARAM, "parameters `mcpName` can't be empty or null");
              return errorResponse;
          }
          return doHandler(request, meta);
      }
      
      private QueryMcpServerResponse doHandler(QueryMcpServerRequest request, RequestMeta meta) throws NacosException {
          McpServerIndexData indexData = mcpServerIndex.getMcpServerByName(request.getNamespaceId(),
                  request.getMcpName());
          QueryMcpServerResponse response = new QueryMcpServerResponse();
          if (null == indexData) {
              response.setErrorInfo(NacosException.NOT_FOUND,
                      String.format("MCP server `%s` not found in namespaceId: `%s`", request.getMcpName(),
                              request.getNamespaceId()));
              return response;
          }
          McpServerDetailInfo detailInfo = mcpServerOperationService.getMcpServerDetail(request.getNamespaceId(),
                  indexData.getId(), null, request.getVersion());
          response.setMcpServerDetailInfo(detailInfo);
          return response;
      }
  }
  