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
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   * See the License for the specific language governing permissions and
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  // beam-playground:
  //   name: kafka-write
  //   description: KafkaIO write example
  //   multifile: false
  //   default_example: false
  //   context_line: 45
  //   categories:
  //     - IO
  //   complexity: ADVANCED
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.beam.sdk.Pipeline;
  import org.apache.beam.sdk.io.kafka.KafkaIO;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.beam.sdk.transforms.Create;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.kafka.common.serialization.ByteArraySerializer;
  import org.apache.kafka.common.serialization.StringSerializer;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Properties;
  
  public class Task {
      public static void main(String[] args) {
  
          PipelineOptions options = PipelineOptionsFactory.fromArgs(args).create();
          Pipeline pipeline = Pipeline.create(options);
  
          PCollection<String> input = pipeline.apply(Create.of("Hello", "KafkaIO"));
  
          Properties producerProps = new Properties();
          producerProps.setProperty("bootstrap.servers", "kafka_server:9092");
          producerProps.setProperty("key.serializer", StringSerializer.class.getName());
          producerProps.setProperty("value.serializer", ByteArraySerializer.class.getName());
  
          // This pipeline is an example of how you can use Apache Beam's KafkaIO to write data to a Kafka topic.
          // Make sure your Kafka server is accessible and running, and the topic exists.
  
          input.apply(KafkaIO.<String, String>write()
                  .withBootstrapServers("kafka_server:9092")
                  .withTopic("my-topic")
                  .withKeySerializer(StringSerializer.class)
                  .withValueSerializer(StringSerializer.class)
                  .withProducerConfigUpdates(new HashMap<>()).values());
  
          pipeline.run().waitUntilFinish();
      }
  }