Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 net.firejack.platform.core.utils; import org.apache.commons.collections.map.MultiValueMap; import java.util.Collection; import java.util.List; import java.util.Map; /** * */ public class CollectionUtils extends org.apache.commons.collections.CollectionUtils { /** * @param collection * * @return */ public static boolean isEmpty(Collection collection) { return collection == null || collection.isEmpty(); } /** * @param map * * @return */ public static boolean isEmpty(Map map) { return map == null || map.isEmpty(); } /** * * @param objects * @param key * @param value * @return */ public static MultiValueMap create(List<Object[]> objects, int key, int value) { MultiValueMap map = new MultiValueMap(); if (objects != null) { for (Object[] object : objects) { map.put(object[key], object[value]); } } return map; } }