partial-response/src/main/java/com/iluwatar/partialresponse/VideoResource.java - master - githubmirror/java-design-patterns

partial-response/src/main/java/com/iluwatar/partialresponse/VideoResource.java

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Ilkka Seppälä

deps: Refactor dependencies (#3224)

29 мар 2025, 20:34

29 мар 2025, 20:340ca162a

/*
 * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
 *
 * The MIT License
 * Copyright © 2014-2022 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.iluwatar.partialresponse;

import java.util.Map;

/**
 * The resource record class which serves video information. This class act as server in the demo.
 * Which has all video details.
 *
 * @param fieldJsonMapper map object to json.
 * @param videos initialize resource with existing videos. Act as database.
 */
public record VideoResource(FieldJsonMapper fieldJsonMapper, Map<Integer, Video> videos) {
  /**
   * Get Details.
   *
   * @param id video id
   * @param fields fields to get information about
   * @return full response if no fields specified else partial response for given field.
   */
  public String getDetails(Integer id, String... fields) throws Exception {
    if (fields.length == 0) {
      return videos.get(id).toString();
    }
    return fieldJsonMapper.toJson(videos.get(id), fields);
  }
}