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.quarkus.component.kafka;
  
  import jakarta.enterprise.context.ApplicationScoped;
  import jakarta.enterprise.inject.Produces;
  import jakarta.inject.Named;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.kafka.KafkaConstants;
  import org.apache.camel.component.kafka.consumer.KafkaManualCommit;
  import org.apache.camel.processor.idempotent.kafka.KafkaIdempotentRepository;
  import org.eclipse.microprofile.config.inject.ConfigProperty;
  
  public class CamelKafkaRoutes extends RouteBuilder {
  
      private final static String KAFKA_CONSUMER_MANUAL_COMMIT = "kafka:manual-commit-topic"
              + "?groupId=group1&sessionTimeoutMs=30000&autoCommitEnable=false"
              + "&allowManualCommit=true&autoOffsetReset=earliest";
  
      private final static String SEDA_FOO = "seda:foo";
      private final static String SEDA_SERIALIZER = "seda:serializer";
      private final static String SEDA_HEADER_PROPAGATION = "seda:propagation";
  
      @ConfigProperty(name = "camel.component.kafka.brokers")
      String brokers;
  
      @Produces
      @ApplicationScoped
      @Named("kafkaIdempotentRepository")
      KafkaIdempotentRepository kafkaIdempotentRepository() {
          return new KafkaIdempotentRepository("idempotent-topic", brokers);
      }
  
      @Produces
      @ApplicationScoped
      @Named("customHeaderDeserializer")
      CustomHeaderDeserializer customHeaderDeserializer() {
          return new CustomHeaderDeserializer();
      }
  
      @Override
      public void configure() throws Exception {
          from("kafka:inbound?autoOffsetReset=earliest")
                  .to("log:kafka")
                  .to("kafka:outbound");
  
          from("direct:idempotent")
                  .idempotentConsumer(header("id"))
                  .idempotentRepository("kafkaIdempotentRepository")
                  .to("mock:idempotent-results")
                  .end();
  
          CounterRoutePolicy counterRoutePolicy = new CounterRoutePolicy();
  
          // Kafka consumer that use Manual commit
          // it manually commits only once every 2 messages received, so that we could test redelivery of uncommitted messages
          from(KAFKA_CONSUMER_MANUAL_COMMIT)
                  .routeId("foo")
                  .routePolicy(counterRoutePolicy)
                  .to(SEDA_FOO)
                  .process(e -> {
                      int counter = counterRoutePolicy.getCounter();
                      if (counter % 2 != 0) {
                          KafkaManualCommit manual = e.getMessage().getHeader(KafkaConstants.MANUAL_COMMIT,
                                  KafkaManualCommit.class);
                          manual.commit();
                      }
                  });
  
          // By default, keyDeserializer & valueDeserializer == org.apache.kafka.common.serialization.StringDeserializer
          // and valueSerializer & keySerializer == org.apache.kafka.common.serialization.StringSerializer
          // the idea here is to test setting different kinds of Deserializers
          from("kafka:test-serializer?autoOffsetReset=earliest" +
                  "&keyDeserializer=org.apache.kafka.common.serialization.IntegerDeserializer" +
                  "&valueDeserializer=org.apache.kafka.common.serialization.DoubleDeserializer")
                  .to(SEDA_SERIALIZER);
  
          // Header Propagation using CustomHeaderDeserialize
          from("kafka:test-propagation?headerDeserializer=#customHeaderDeserializer")
                  .to(SEDA_HEADER_PROPAGATION);
  
      }
  }
  