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.util.ArrayList;
  import java.util.List;
  
  import org.apache.camel.kafkaconnector.common.clients.kafka.KafkaClient;
  import org.apache.kafka.clients.consumer.ConsumerRecord;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public abstract class AbstractTestMessageConsumer<T> implements TestMessageConsumer<T> {
      private static final Logger LOG = LoggerFactory.getLogger(AbstractTestMessageConsumer.class);
  
      protected final KafkaClient<String, T> kafkaClient;
      protected final String topicName;
      private final int count;
      private final List<ConsumerRecord<String, T>> receivedMessages;
      private volatile int received;
  
      public AbstractTestMessageConsumer(KafkaClient<String, T> kafkaClient, String topicName, int count) {
          this.kafkaClient = kafkaClient;
          this.topicName = topicName;
          this.count = count;
  
          receivedMessages = new ArrayList<>(count);
      }
  
      public boolean checkRecord(ConsumerRecord<String, T> record) {
          LOG.debug("Received: {}", record.value());
          received++;
          receivedMessages.add(record);
  
          if (received == count) {
              return false;
          }
  
          return true;
      }
  
      @Override
      public void consumeMessages() {
          kafkaClient.consume(topicName, this::checkRecord);
      }
  
      @Override
      public List<ConsumerRecord<String, T>> consumedMessages() {
          return receivedMessages;
      }
  
  
  }
  