simulation-cloud/api-common/src/main/java/api/common/util/CollectionUtil.java

package api.common.util;

import java.util.*;

public class CollectionUtil {


    public static <T> List<T> arrayToList(T[] array) {
        return Arrays.asList(array);
    }


    @SafeVarargs
    public static <T> ArrayList<T> createArrayList(T... elements) {
        return new ArrayList<>(Arrays.asList(elements));
    }

    @SafeVarargs
    public static <T> HashSet<T> createHashSet(T... elements) {
        return new HashSet<>(Arrays.asList(elements));
    }

    public static <T> Set<T> listToSet(List<T> list) {
        return new HashSet<>(list);
    }

    public static <T> List<T> setToList(Set<T> set) {
        return new ArrayList<>(set);
    }

    public static boolean isEmpty(Collection<?> collection) {
        return collection == null || collection.isEmpty();
    }

    public static boolean isEmpty(ArrayList<?> arrayList) {
        return arrayList == null || arrayList.isEmpty();
    }

    public static boolean isEmpty(Map<?, ?> map) {
        return map == null || map.isEmpty();
    }

    public static boolean isNotEmpty(Collection<?> collection) {
        return !isEmpty(collection);
    }

    public static boolean isNotEmpty(Map<?, ?> map) {
        return !isEmpty(map);
    }

    public static void addValueToMap(Map<String, Integer> map, int value, String key) {
        map.merge(key, value, Integer::sum);
    }


}