cn.acyou.leo.framework.util.MapUtils Maven / Gradle / Ivy

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package cn.acyou.leo.framework.util;

import cn.hutool.core.map.MapUtil;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 *
 *  *         MapListBuild<String, String> mapList1 = MapUtils.createMapList();
 *         mapList1.putValue("1", "1");
 *         mapList1.putValue("1", "2");
 *         mapList1.putValue("1", "3");
 *         mapList1.putValue("1", "4");
 *         mapList1.putValue("2", "1");
 *         mapList1.putValue("2", "2");
 *         mapList1.putValue("2", "3");
 *         mapList1.putValue("2", "4");
 *         mapList1.putValue("3", "1")
 *                 .putValue("3", "2")
 *                 .putValue("3", "2")
 *                 .putValue("3", "2");
 *
 *         System.out.println(mapList1.getMap());
 *
 *         Map<String, String> map = MapUtils.createMap("1", "2");
 *         System.out.println(map);
 *         Map<String, Integer> map1 = MapUtils.<String, Integer>createMap().putValue("1", 2).putValue("2", 3).getMap();
 *         System.out.println(map1);
 * 
 * @author fangyou
 * @version [1.0.0, 2021-08-24 13:53]
 */
public class MapUtils extends MapUtil{
    /**
     * 是空的
     *
     * @param map 要检查的Map,可能为空
     * @return 如果为空或null，则为true
     */
    public static boolean isEmpty(final Map map) {
        return map == null || map.isEmpty();
    }

    /**
     * 不是空的
     *
     * @param map 要检查的Map,可能为空
     * @return 如果为非null和非空，则为true
     */
    public static boolean isNotEmpty(final Map map) {
        return !isEmpty(map);
    }


    public static Map createMap(String k, String v){
        Map map = new HashMap<>();
        map.put(k, v);
        return map;
    }

    /** ********************************** 构建 Map****************************************************** */
    public static  MapBuild createMap() {
        return new MapBuild<>(new HashMap<>());
    }

    public static  MapBuild createMap(Map map) {
        return new MapBuild<>(map);
    }

    public static class MapBuild {
        private final Map map;

        public MapBuild(Map map) {
            this.map = map;
        }

        public MapBuild putValue(K k, V v){
            map.put(k, v);
            return this;
        }

        public Map getMap(){
            return map;
        }
    }


    /** ********************************** 构建 Map>****************************************************** */
    public static  MapListBuild createMapList() {
        return new MapListBuild<>(new HashMap<>());
    }

    public static  MapListBuild createMapList(Map> map) {
        return new MapListBuild<>(map);
    }

    public static class MapListBuild {
        private final Map> map;

        public MapListBuild(Map> map) {
            this.map = map;
        }

        public MapListBuild putValue(K k, V v){
            if (map.containsKey(k)) {
                map.get(k).add(v);
            }else {
                List vList = new ArrayList<>();
                vList.add(v);
                map.put(k, vList);
            }
            return this;
        }

        public Map> getMap(){
            return map;
        }
    }

    /**
     * 为Map> 添加值
     */
    public static  Map> putList(Map> map, K k, V v){
        if (map == null) {
            map = new HashMap<>();
        }
        if (map.containsKey(k)) {
            map.get(k).add(v);
        }else {
            List vList = new ArrayList<>();
            vList.add(v);
            map.put(k, vList);
        }
        return map;
    }

    /**
     * 为Map> 初始化
     */
    @SuppressWarnings("unchecked")
    public static  Map> initList(Map> map, K... keys){
        if (keys != null && keys.length > 0) {
            for (K key : keys) {
                map.put(key, new ArrayList<>());
            }
        }
        return map;
    }


}