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/*
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2021 Bell Canada. All rights reserved.
 *  ================================================================================
 *  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.
 *
 *  SPDX-License-Identifier: Apache-2.0
 *  ============LICENSE_END=========================================================
 */

package org.onap.cps.notification

import org.testcontainers.containers.KafkaContainer
import org.testcontainers.utility.DockerImageName

class KafkaTestContainerConfig {

    private static KafkaContainer kafkaContainer

    static {
        getKafkaContainer()
    }

    // Not the best performance but it is good enough for test case
    private static synchronized KafkaContainer getKafkaContainer() {
        if (kafkaContainer == null) {
            kafkaContainer = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:6.1.1"))
                    .withEnv("KAFKA_AUTO_CREATE_TOPICS_ENABLE", "false")
            kafkaContainer.start()
            Runtime.getRuntime().addShutdownHook(new Thread(kafkaContainer::stop))
        }
        return kafkaContainer
    }

    static String getBootstrapServers() {
        getKafkaContainer()
        return kafkaContainer.getBootstrapServers()
    }

}