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.Collections;
  
  import jakarta.ws.rs.GET;
  import jakarta.ws.rs.Produces;
  import jakarta.ws.rs.core.Context;
  import jakarta.ws.rs.core.HttpHeaders;
  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 cluster pre-upgrade checks.
   */
  public class PreUpgradeCheckService extends BaseService {
  
    /**
     * Cluster name.
     */
    private String clusterName = null;
  
    /**
     * Constructor.
     *
     * @param clusterName cluster name
     */
    public PreUpgradeCheckService(String clusterName) {
      this.clusterName = clusterName;
    }
  
    /**
     * Handles GET /rolling_upgrades_check request.
     *
     * @param headers headers
     * @param ui uri info
     * @return information about upgrade checks
     */
    @GET @ApiIgnore // until documented
    @Produces("text/plain")
    public Response getPreUpgradeChecks(@Context HttpHeaders headers, @Context UriInfo ui) {
      return handleRequest(headers, null, ui, Request.Type.GET, createResource());
    }
  
    /**
     * Creates an upgrade check resource instance.
     *
     * @return an upgrade check resource instance
     */
    private ResourceInstance createResource() {
      return createResource(Resource.Type.PreUpgradeCheck, Collections.singletonMap(Resource.Type.Cluster, clusterName));
    }
  }
  