001/*
002 *    Copyright 2024-2025, Warm-Flow (290631660@qq.com).
003 *
004 *    Licensed under the Apache License, Version 2.0 (the "License");
005 *    you may not use this file except in compliance with the License.
006 *    You may obtain a copy of the License at
007 *
008 *       https://www.apache.org/licenses/LICENSE-2.0
009 *
010 *    Unless required by applicable law or agreed to in writing, software
011 *    distributed under the License is distributed on an "AS IS" BASIS,
012 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *    See the License for the specific language governing permissions and
014 *    limitations under the License.
015 */
016package org.dromara.warm.flow.core.utils;
017
018import java.util.Map;
019
020/**
021 * map工具类
022 *
023 * @author warm
024 * @since 2023/5/18 9:46
025 */
026public class MapUtil {
027
028    /**
029     * * 判断一个Map是否为空
030     *
031     * @param map 要判断的Map
032     * @return true：为空 false：非空
033     */
034    public static boolean isEmpty(Map<?, ?> map) {
035        return ObjectUtil.isNull(map) || map.isEmpty();
036    }
037
038    /**
039     * * 判断一个Map是否为空
040     *
041     * @param map 要判断的Map
042     * @return true：非空 false：空
043     */
044    public static boolean isNotEmpty(Map<?, ?> map) {
045        return !isEmpty(map);
046    }
047
048    /**
049     * 如果Map是空，则返回默认值
050     *
051     * @param map        Map
052     * @param defaultMap 默认值
053     * @return 结果
054     */
055    public static <K, V> Map<K, V> emptyDefault(Map<K, V> map, Map<K, V> defaultMap) {
056        return isEmpty(map) ? defaultMap : map;
057    }
058}