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 com.example.demo;
  
  import org.apache.camel.LoggingLevel;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.model.dataformat.JsonLibrary;
  import org.apache.camel.model.rest.RestBindingMode;
  import org.springframework.stereotype.Component;
  
  @Component
  public class MySimpleCamelRouter extends RouteBuilder {
      @Override
      public void configure() throws Exception {
          restConfiguration()
                  .component("servlet")
                  .bindingMode(RestBindingMode.json);
  
          rest()
                  .get("/bookTrip").to("direct:bookTrip")
                  .get("/asyncBookTrip").to("direct:asyncBookTrip");
  
          from("direct:bookTrip")
                  .routeId("bookTrip-http")
                  .routeDescription("This is demo service for demonstration telemetry aspects")
                  .log(LoggingLevel.INFO, "New book trip request with trace=${header.traceparent}")
                  .multicast(new MergeAggregationStrategy()).parallelProcessing()
                           .to("http://localhost:8081/camel/bookCar?bridgeEndpoint=true")
                           .to("http://localhost:8082/camel/bookFlight?bridgeEndpoint=true")
                           .to("http://localhost:8083/camel/bookHotel?bridgeEndpoint=true")
                  .end()
                  .log(LoggingLevel.INFO,"Response: ${body}")
                  .unmarshal().json(JsonLibrary.Jackson);
  
          // kafka based 
          from("direct:asyncBookTrip")
                  .routeId("bookTrip-kafka-request")
                  .routeDescription("This is demo service for demonstration telemetry aspects via Kafka")
                  .log(LoggingLevel.INFO, "New book trip request via Kafka")
                  // .to("log:debug?showAll=true&multiline=true")
                  .setBody(simple("New async request ${header.x-b3-traceid}"))
                  .multicast().parallelProcessing()
                          .to("kafka:car_input?brokers=kafka:9092")
                          .to("kafka:flight_input?brokers=kafka:9092")
                          .to("kafka:hotel_input?brokers=kafka:9092")
                  .end();
          
          from("kafka:car_output?brokers=kafka:9092").to("seda:tripAggregator");
          from("kafka:flight_output?brokers=kafka:9092").to("seda:tripAggregator");
          from("kafka:hotel_output?brokers=kafka:9092").to("seda:tripAggregator");
          
          from("seda:tripAggregator").routeId("bookTrip-kafka-response")
                  .aggregate(constant(true), new MergeAggregationStrategy())
                  .completionSize(3)
                  .log(LoggingLevel.INFO, "New book trip response: ${body}");
      }
  }