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.camel.kafkaconnector.common.test;
  
  import java.time.Duration;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  import org.apache.camel.kafkaconnector.common.AbstractKafkaTest;
  import org.apache.camel.kafkaconnector.common.ConnectorPropertyFactory;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public abstract class CamelSinkTestSupport extends AbstractKafkaTest {
      private static final Logger LOG = LoggerFactory.getLogger(CamelSinkTestSupport.class);
  
      /**
       * A simple test runner that follows the steps: initialize, start consumer, produce messages, verify results
       *
       * @param connectorPropertyFactory A factory for connector properties
       * @param topic the topic to send the messages to
       * @param count the number of messages to send
       * @throws Exception For test-specific exceptions
       */
      protected void runTest(ConnectorPropertyFactory connectorPropertyFactory, String topic, int count) throws Exception {
          StringMessageProducer stringMessageProducer = new StringMessageProducer(getKafkaService().getBootstrapServers(),
                  topic, count);
  
          runTest(connectorPropertyFactory, stringMessageProducer);
      }
  
      /**
       * A simple test runner that follows the steps: initialize, start consumer, produce messages, verify results
       *
       * @param connectorPropertyFactory A factory for connector properties
       * @throws Exception For test-specific exceptions
       */
      protected void runTest(ConnectorPropertyFactory connectorPropertyFactory, TestMessageProducer producer) throws Exception {
          connectorPropertyFactory.log();
          getKafkaConnectService().initializeConnectorBlocking(connectorPropertyFactory, 1);
  
          LOG.debug("Creating the consumer ...");
          ExecutorService service = Executors.newCachedThreadPool();
  
          CountDownLatch latch = new CountDownLatch(1);
          service.submit(() -> consumeMessages(latch));
  
          producer.produceMessages();
  
          LOG.debug("Waiting for the messages to be processed");
          service.shutdown();
  
          LOG.debug("Waiting for the test to complete");
          verifyMessages(latch);
      }
  
      /**
       * A more flexible test runner that can use a custom producer of test messages
       * @param connectorPropertyFactory a factory for connector properties
       * @param producer the test message producer
       * @throws ExecutionException
       * @throws InterruptedException
       */
      protected void runTest(ConnectorPropertyFactory connectorPropertyFactory, FunctionalTestMessageProducer producer) throws ExecutionException, InterruptedException {
          connectorPropertyFactory.log();
          getKafkaConnectService().initializeConnectorBlocking(connectorPropertyFactory, 1);
  
          LOG.debug("Creating the consumer ...");
          ExecutorService service = Executors.newCachedThreadPool();
  
          CountDownLatch latch = new CountDownLatch(1);
          service.submit(() -> consumeMessages(latch));
  
          producer.produceMessages();
  
          LOG.debug("Waiting for the messages to be processed");
          service.shutdown();
  
          LOG.debug("Waiting for the test to complete");
          verifyMessages(latch);
      }
  
      /**
       * A simple test runner that follows the steps: initialize, start consumer, produce messages, verify results
       *
       * @param connectorPropertyFactory A factory for connector properties
       * @throws Exception For test-specific exceptions
       */
      protected void runTestNonBlocking(ConnectorPropertyFactory connectorPropertyFactory, TestMessageProducer producer) throws Exception {
          connectorPropertyFactory.log();
          getKafkaConnectService().initializeConnector(connectorPropertyFactory);
  
          LOG.debug("Creating the consumer ...");
          ExecutorService service = Executors.newCachedThreadPool();
  
          CountDownLatch latch = new CountDownLatch(1);
          service.submit(() -> consumeMessages(latch));
  
          producer.produceMessages();
  
          LOG.debug("Waiting for the messages to be processed");
          service.shutdown();
  
          LOG.debug("Waiting for the test to complete");
          verifyMessages(latch);
      }
  
  
      protected boolean waitForData() {
          try {
              Thread.sleep(Duration.ofSeconds(1).toMillis());
              return true;
          } catch (InterruptedException e) {
              Thread.currentThread().interrupt();
  
              return false;
          }
      }
  
      protected abstract void consumeMessages(CountDownLatch latch);
  
      protected abstract void verifyMessages(CountDownLatch latch) throws InterruptedException;
  }
  