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.DELETE;
  import jakarta.ws.rs.GET;
  import jakarta.ws.rs.POST;
  import jakarta.ws.rs.PUT;
  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.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;
  
  /**
   * DR feed service.
   */
  @Path("/feeds/")
  public class FeedService extends BaseService {
  
    /**
     * Handles: GET /feeds/{feedName}
     * Get a specific feed.
     *
     * @param headers     http headers
     * @param ui          uri info
     * @param feedName    feed id
     * @return feed instance representation
     */
    @GET @ApiIgnore // until documented
    @Path("{feedName}")
    @Produces("text/plain")
    public Response getFeed(String body, @Context HttpHeaders headers, @Context UriInfo ui,
                               @PathParam("feedName") String feedName) {
  
      return handleRequest(headers, body, ui, Request.Type.GET, createFeedResource(feedName));
    }
  
    /**
     * Handles: GET  /feeds
     * Get all feeds.
     *
     * @param headers http headers
     * @param ui      uri info
     * @return feed collection resource representation
     */
    @GET @ApiIgnore // until documented
    @Produces("text/plain")
    public Response getFeeds(String body, @Context HttpHeaders headers, @Context UriInfo ui) {
      return handleRequest(headers, body, ui, Request.Type.GET, createFeedResource(null));
    }
  
    /**
     * Handles: POST /feeds/{feedName}
     * Create a specific feed.
     *
     * @param headers     http headers
     * @param ui          uri info
     * @param feedName feed id
     * @return information regarding the created feed
     */
    @POST @ApiIgnore // until documented
    @Path("{feedName}")
    @Produces("text/plain")
    public Response createFeed(String body, @Context HttpHeaders headers, @Context UriInfo ui,
                                  @PathParam("feedName") String feedName) {
  
      return handleRequest(headers, body, ui, Request.Type.POST, createFeedResource(feedName));
    }
  
    /**
     * Handles: PUT /feeds/{feedName}
     * Update a specific feed.
     *
     * @param headers     http headers
     * @param ui          uri info
     * @param feedName feed id
     * @return information regarding the updated feed
     */
    @PUT @ApiIgnore // until documented
    @Path("{feedName}")
    @Produces("text/plain")
    public Response updateFeed(String body, @Context HttpHeaders headers, @Context UriInfo ui,
                                  @PathParam("feedName") String feedName) {
  
      return handleRequest(headers, body, ui, Request.Type.PUT, createFeedResource(feedName));
    }
  
    /**
     * Handles: DELETE /feeds/{feedName}
     * Delete a specific feed.
     *
     * @param headers     http headers
     * @param ui          uri info
     * @param feedName feed id
     * @return information regarding the deleted feed
     */
    @DELETE @ApiIgnore // until documented
    @Path("{feedName}")
    @Produces("text/plain")
    public Response deleteFeed(@Context HttpHeaders headers, @Context UriInfo ui,
                                  @PathParam("feedName") String feedName) {
  
      return handleRequest(headers, null, ui, Request.Type.DELETE, createFeedResource(feedName));
    }
  
    /**
     * Get the instances sub-resource
     *
     * @param feedName feed id
     * @return the instances service
     */
    @Path("{feedName}/instances")
    public InstanceService getHostHandler(@PathParam("feedName") String feedName) {
      return new InstanceService(feedName);
    }
  
    /**
     * Create a feed resource instance.
     *
     * @param feedName feed name
     *
     * @return a feed resource instance
     */
    ResourceInstance createFeedResource(String feedName) {
      return createResource(Resource.Type.DRFeed,
          Collections.singletonMap(Resource.Type.DRFeed, feedName));
    }
  }
  