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/**
 * Copyright (c) 2015-2017, Michael Yang 杨福海 ([email protected]).
 * 
 * Licensed under the GNU Lesser General Public License (LGPL) ,Version 3.0 (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.gnu.org/licenses/lgpl-3.0.txt
 * 
 * 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 io.jboot.utils;

import java.util.Arrays;
import java.util.List;
import java.util.Map;


public class ArrayUtils {

    public static boolean isNotEmpty(List list) {
        return list != null && list.size() > 0;
    }

    public static boolean isNotEmpty(Map map) {
        return map != null && map.size() > 0;
    }

    public static boolean isNotEmpty(Object[] objects) {
        return objects != null && objects.length > 0;
    }

    public static boolean isNullOrEmpty(List list) {
        return list == null || list.size() == 0;
    }

    public static boolean isNullOrEmpty(Map map) {
        return map == null || map.size() == 0;
    }

    public static boolean isNullOrEmpty(Object[] objects) {
        return objects == null || objects.length == 0;
    }

    public static  T[] concat(T[] first, T[]... rest) {
        int totalLength = first.length;
        for (T[] array : rest) {
            totalLength += array.length;
        }
        T[] result = Arrays.copyOf(first, totalLength);
        int offset = first.length;
        for (T[] array : rest) {
            System.arraycopy(array, 0, result, offset, array.length);
            offset += array.length;
        }
        return result;
    }

}