| /* |
| * 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 org.apache.tinkerpop.gremlin.util.tools; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.LinkedHashMap; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| |
| public class CollectionFactory { |
| |
| public static <E> List<E> asList(final E... elements) { |
| return new ArrayList<>(Arrays.asList(elements)); |
| } |
| |
| public static <E> LinkedHashSet<E> asSet(final E... elements) { |
| return asSet(Arrays.asList(elements)); |
| } |
| |
| public static <E> LinkedHashSet<E> asSet(final Collection<E> elements) { |
| return new LinkedHashSet<>(elements); |
| } |
| |
| public static <K,V> LinkedHashMap<K,V> asMap(final Object... elements) { |
| final LinkedHashMap<K,V> map = new LinkedHashMap<>(); |
| for (int i = 0; i < elements.length; i+=2) { |
| final K k = (K) elements[i]; |
| final V v = (V) (i+1 < elements.length ? elements[i+1] : null); |
| map.put(k, v); |
| } |
| return map; |
| } |
| |
| } |