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API for tinyMediaManager scrapers

There is a newer version: 3.0.5

/*
 * Copyright 2012 - 2019 Manuel Laggner
 *
 * 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 org.tinymediamanager.scraper.util;

import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 * The class MapUtils is a helper class, providing some special functions for maps
 *
 * @author Manuel Laggner
 * @since 2.5
 */
public class MapUtils {

  private MapUtils() {
    // hide the public constructor for utility classes
  }

  /**
   * sort the given map by key and return a new map
   * 
   * @param map
   *          the map to be sorted
   * @return a new sorted map
   */
  public static , V> Map sortByKey(Map map) {
    List> list = new LinkedList<>(map.entrySet());
    Collections.sort(list, Comparator.comparing(Map.Entry::getKey));

    Map result = new LinkedHashMap<>();
    for (Map.Entry entry : list) {
      result.put(entry.getKey(), entry.getValue());
    }
    return result;
  }

  /**
   * sort the given map by value and return a new map
   * 
   * @param map
   *          the map to be sorted
   * @return a new sorted map
   */
  public static > Map sortByValue(Map map) {
    List> list = new LinkedList<>(map.entrySet());
    Collections.sort(list, Comparator.comparing(Map.Entry::getValue));

    Map result = new LinkedHashMap<>();
    for (Map.Entry entry : list) {
      result.put(entry.getKey(), entry.getValue());
    }
    return result;
  }
}