com.epam.eco.commons.kafka.TopicPartitionComparator Maven / Gradle / Ivy

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A library of utilities, helpers and higher-level APIs for the Kafka client library

There is a newer version: 3.0.5

/*
 * Copyright 2019 EPAM Systems
 *
 * Licensed 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 com.epam.eco.commons.kafka;

import java.util.Comparator;

import org.apache.commons.lang3.ObjectUtils;
import org.apache.kafka.common.TopicPartition;

/**
 * @author Andrei_Tytsik
 */
public class TopicPartitionComparator implements Comparator {

    public static final TopicPartitionComparator INSTANCE = new TopicPartitionComparator();

    private TopicPartitionComparator() {
    }

    @Override
    public int compare(TopicPartition o1, TopicPartition o2) {
        int result = ObjectUtils.compare(o1.topic(), o2.topic());
        if (result == 0) {
            result = ObjectUtils.compare(o1.partition(), o2.partition());
        }
        return result;
    }

}