forked from hugegraph/hugegraph-sync
49 lines
1.7 KiB
Java
49 lines
1.7 KiB
Java
/*
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* Copyright 2017 HugeGraph Authors
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with this
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* work for additional information regarding copyright ownership. The ASF
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* licenses this file to You under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.baidu.hugegraph.util;
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import java.lang.reflect.Array;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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public final class CollectionUtil {
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@SuppressWarnings({ "unchecked", "rawtypes" })
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public static boolean containsAll(Collection a, Collection b) {
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return a.containsAll(b);
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}
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@SuppressWarnings("unchecked")
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public static <T> List<T> toList(Object array) {
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E.checkNotNull(array, "array");
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E.checkArgument(array.getClass().isArray(),
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"The parameter of toList() must be an array: '%s'",
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array.getClass().getSimpleName());
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int length = Array.getLength(array);
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List<T> list = new ArrayList<>(length);
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for (int i = 0; i < length; i++) {
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list.add((T) Array.get(array, i));
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}
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return list;
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}
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}
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