content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.ambari.server.api.services;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import jakarta.ws.rs.POST;
  import jakarta.ws.rs.Path;
  import jakarta.ws.rs.PathParam;
  import jakarta.ws.rs.Produces;
  import jakarta.ws.rs.core.Context;
  import jakarta.ws.rs.core.HttpHeaders;
  import jakarta.ws.rs.core.MediaType;
  import jakarta.ws.rs.core.Response;
  import jakarta.ws.rs.core.UriInfo;
  
  import org.apache.ambari.annotations.ApiIgnore;
  import org.apache.ambari.server.api.resources.ResourceInstance;
  import org.apache.ambari.server.controller.spi.Resource;
  
  /**
   * Service responsible for preparing recommendations for host-layout and
   * configurations.
   */
  @Path("/stacks/{stackName}/versions/{stackVersion}/recommendations")
  public class RecommendationService extends BaseService {
  
    /**
     * Returns host-layout recommendations for list of hosts and services.
     * 
     * @param body http body
     * @param headers http headers
     * @param ui uri info
     * @param stackName stack name
     * @param stackVersion stack version
     * @return recommendations for host-layout
     */
    @POST @ApiIgnore // until documented
    @Produces(MediaType.TEXT_PLAIN)
    public Response getRecommendation(String body, @Context HttpHeaders headers, @Context UriInfo ui,
        @PathParam("stackName") String stackName, @PathParam("stackVersion") String stackVersion) {
  
      return handleRequest(headers, body, ui, Request.Type.POST,
          createRecommendationResource(stackName, stackVersion));
    }
  
    ResourceInstance createRecommendationResource(String stackName, String stackVersion) {
      Map<Resource.Type, String> mapIds = new HashMap<>();
      mapIds.put(Resource.Type.Stack, stackName);
      mapIds.put(Resource.Type.StackVersion, stackVersion);
  
      return createResource(Resource.Type.Recommendation, mapIds);
    }
  
  }
  