tcbot-common/src/main/java/org/apache/ignite/tcbot/common/util/CollectionUtil.java

/*
 * 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.ignite.tcbot.common.util;

import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * Collection util.
 */
public class CollectionUtil {
    public static <T> List<T> top(Stream<? extends T> data, int cnt, Comparator<T> comp) {
        Comparator<T> reversedComp = comp.reversed();
        return data.sorted(reversedComp).limit(cnt).collect(Collectors.toList());
    }
}