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A Java SDK for Apache Kafka

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/*
 * Copyright (C) 2021 Clivern 
 *
 * 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.clivern.kafka;

import java.util.Collections;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
import org.apache.kafka.clients.admin.AdminClient;
import org.apache.kafka.clients.admin.NewTopic;
import org.apache.kafka.common.errors.TopicExistsException;

/** Utils Class */
public class Utils {

    /**
     * Create a Topic
     *
     * @param topic a topic
     * @param configs kafka configs
     * @throws RuntimeException throws exception if creation failed
     */
    public static void createTopic(String topic, Configs configs) {
        NewTopic newTopic = new NewTopic(topic, Optional.empty(), Optional.empty());

        try (AdminClient adminClient = AdminClient.create(configs.getProperties())) {
            adminClient.createTopics(Collections.singletonList(newTopic)).all().get();
        } catch (InterruptedException | ExecutionException e) {
            // Ignore if TopicExistsException, which may be valid if topic exists
            if (!(e.getCause() instanceof TopicExistsException)) {
                throw new RuntimeException(e);
            }
        }
    }
}