content: /*
   * 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.kafka.connect.mirror.integration;
  
  import org.apache.kafka.clients.producer.KafkaProducer;
  import org.apache.kafka.clients.producer.Producer;
  import org.apache.kafka.clients.producer.ProducerConfig;
  import org.apache.kafka.clients.producer.ProducerRecord;
  import org.apache.kafka.connect.util.clusters.EmbeddedConnectCluster;
  
  import org.junit.jupiter.api.BeforeEach;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  
  /**
   * Integration test for MirrorMaker2 in which source records are emitted with a transactional producer,
   * which interleaves transaction commit messages into the source topic which are not propagated downstream.
   */
  public class MirrorConnectorsIntegrationTransactionsTest extends MirrorConnectorsIntegrationBaseTest {
  
      @BeforeEach
      @Override
      public void startClusters() throws Exception {
          primaryBrokerProps.put("transaction.state.log.replication.factor", "1");
          backupBrokerProps.put("transaction.state.log.replication.factor", "1");
          primaryBrokerProps.put("transaction.state.log.min.isr", "1");
          backupBrokerProps.put("transaction.state.log.min.isr", "1");
          super.startClusters();
      }
  
      @Override
      protected Producer<byte[], byte[]> initializeProducer(EmbeddedConnectCluster cluster) {
          Map<String, Object> producerProps = new HashMap<>();
          producerProps.put(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG, "true");
          producerProps.put(ProducerConfig.TRANSACTIONAL_ID_CONFIG, "embedded-kafka-0");
          // This may be the first transactional producer for the Kafka cluster, in which case
          // Producer::initTransactions may take a while (especially on CI)
          // To be tolerant of long initialization for the transaction log, selecting a
          // transaction coordinator, etc., we configure our producer to wait a little longer
          // than the default before timing out in that method
          producerProps.put(ProducerConfig.MAX_BLOCK_MS_CONFIG, TimeUnit.MINUTES.toMillis(5));
          KafkaProducer<byte[], byte[]> producer = cluster.kafka().createProducer(producerProps);
          producer.initTransactions();
          return producer;
      }
  
  
      @Override
      protected void produceMessages(Producer<byte[], byte[]> producer, List<ProducerRecord<byte[], byte[]>> records) {
          try {
              producer.beginTransaction();
              super.produceMessages(producer, records);
              producer.commitTransaction();
          } catch (RuntimeException e) {
              producer.abortTransaction();
              throw e;
          }
      }
  }
  