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How to use KafkaContainerCluster method of com.example.kafkacluster.KafkaContainerCluster class

Best Testcontainers-java code snippet using com.example.kafkacluster.KafkaContainerCluster.KafkaContainerCluster

...16import java.util.stream.Stream;17import static java.util.concurrent.TimeUnit.SECONDS;18/**19 * Provides an easy way to launch a Kafka cluster with multiple brokers. Copied from20 * https://github.com/testcontainers/testcontainers-java/blob/master/examples/kafka-cluster/src/test/java/com/example/kafkacluster/KafkaContainerCluster.java21 * <p>22 * Since it was copied from the link above, we decided to not make any major changes to it and use it as is.23 */24public class KafkaContainerCluster implements Startable {25    private final int brokersNum;26    private final Network network;27    private final GenericContainer<?> zookeeper;28    private final Collection<KafkaContainer> brokers;29    /**30     * Default constructor for building a kafka cluster to be used for tests.31     *32     * @param confluentPlatformVersion version of the kafka image33     * @param brokersNum               number of brokers34     * @param internalTopicsRf         replication factor35     */36    public KafkaContainerCluster(String confluentPlatformVersion, int brokersNum, int internalTopicsRf) {37        if (brokersNum < 0) {38            throw new IllegalArgumentException("brokersNum '" + brokersNum + "' must be greater than 0");39        }40        if (internalTopicsRf < 0 || internalTopicsRf > brokersNum) {41            throw new IllegalArgumentException(42                    "internalTopicsRf '" + internalTopicsRf + "' must be less than brokersNum and greater than 0");43        }44        this.brokersNum = brokersNum;45        this.network = Network.newNetwork();46        this.zookeeper = new GenericContainer<>(DockerImageName.parse("confluentinc/cp-zookeeper")47                                                               .withTag(confluentPlatformVersion))48                .withNetwork(network)49                .withNetworkAliases("zookeeper")50                .withEnv("ZOOKEEPER_CLIENT_PORT", String.valueOf(KafkaContainer.ZOOKEEPER_PORT));...

Source: KafkaContainerClusterTest.java

...20import java.util.UUID;21import java.util.concurrent.TimeUnit;22import static org.assertj.core.api.Assertions.assertThat;23import static org.assertj.core.api.Assertions.tuple;24public class KafkaContainerClusterTest {25    @Test26    public void testKafkaContainerCluster() throws Exception {27        try (28            KafkaContainerCluster cluster = new KafkaContainerCluster("6.2.1", 3, 2)29        ) {30            cluster.start();31            String bootstrapServers = cluster.getBootstrapServers();32            assertThat(cluster.getBrokers()).hasSize(3);33            testKafkaFunctionality(bootstrapServers, 3, 2);34        }35    }36    protected void testKafkaFunctionality(String bootstrapServers, int partitions, int rf) throws Exception {37        try (38            AdminClient adminClient = AdminClient.create(ImmutableMap.of(39                AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers40            ));41            KafkaProducer<String, String> producer = new KafkaProducer<>(42                ImmutableMap.of(...

KafkaContainerCluster

Using AI Code Generation

1import com.example.kafkacluster.KafkaContainerCluster;2public class KafkaTest {3    public static void main(String[] args) {4        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();5        kafkaContainerCluster.start();6    }7}8import com.example.kafkacluster.KafkaContainerCluster;9public class KafkaTest {10    public static void main(String[] args) {11        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();12        kafkaContainerCluster.stop();13    }14}15import com.example.kafkacluster.KafkaContainerCluster;16public class KafkaTest {17    public static void main(String[] args) {18        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();19        kafkaContainerCluster.restart();20    }21}22import com.example.kafkacluster.KafkaContainerCluster;23public class KafkaTest {24    public static void main(String[] args) {25        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();26        kafkaContainerCluster.delete();27    }28}29import com.example.kafkacluster.KafkaContainerCluster;30public class KafkaTest {31    public static void main(String[] args) {32        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();33        kafkaContainerCluster.status();34    }35}36import com.example.kafkacluster.KafkaContainerCluster;37public class KafkaTest {38    public static void main(String[] args) {39        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();40        kafkaContainerCluster.logs();41    }42}43import com.example.kafkacluster.KafkaContainerCluster;44public class KafkaTest {45    public static void main(String[] args) {46        KafkaContainerCluster kafkaContainerCluster = new KafkaContainerCluster();47        kafkaContainerCluster.restart();48    }49}

KafkaContainerCluster

Using AI Code Generation

1package com.example.kafkacluster;2import org.apache.kafka.clients.admin.AdminClient;3import org.apache.kafka.clients.admin.AdminClientConfig;4import org.apache.kafka.clients.admin.NewTopic;5import org.apache.kafka.clients.producer.KafkaProducer;6import org.apache.kafka.clients.producer.ProducerRecord;7import org.apache.kafka.common.serialization.StringSerializer;8import org.junit.jupiter.api.AfterAll;9import org.junit.jupiter.api.BeforeAll;10import org.junit.jupiter.api.Test;11import org.testcontainers.containers.KafkaContainer;12import org.testcontainers.containers.Network;13import org.testcontainers.utility.DockerImageName;14import java.util.Collections;15import java.util.List;16import java.util.Properties;17import java.util.concurrent.ExecutionException;18import java.util.stream.Collectors;19import java.util.stream.Stream;20import static org.junit.jupiter.api.Assertions.assertEquals;21public class KafkaContainerClusterTest {22    private static KafkaContainerCluster kafkaContainerCluster;23    private static List<KafkaContainer> kafkaContainers;24    private static Network network;25    public static void setup() {26        network = Network.newNetwork();27        kafkaContainerCluster = new KafkaContainerCluster(3, network);28        kafkaContainers = kafkaContainerCluster.getKafkaContainers();29    }30    public static void tearDown() {31        kafkaContainerCluster.stop();32    }33    public void whenCreatingKafkaCluster_thenAllBrokersShouldBeUpAndRunning() {34        List<String> brokers = kafkaContainers.stream()35                .map(KafkaContainer::getBootstrapServers)36                .collect(Collectors.toList());37        Properties properties = new Properties();38        properties.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, brokers);39        AdminClient adminClient = AdminClient.create(properties);40        try {41            assertEquals(3, adminClient.listTopics().names().get().size());42        } catch (InterruptedException | ExecutionException e) {43            e.printStackTrace();44        }45    }46    public void whenCreatingKafkaCluster_thenAllBrokersShouldBeAbleToCommunicate() {47        String topicName = "test";48        String message = "Hello World!";49        kafkaContainers.forEach(50                kafkaContainer -> {51                    String broker = kafkaContainer.getBootstrapServers();52                    Properties properties = new Properties();53                    properties.put(AdminClientConfig.BOOTSTRAP_SERVERS

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