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.
   */
  
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.model.SagaPropagation;
  import org.apache.camel.model.rest.RestParamType;
  import org.apache.camel.service.lra.LRASagaService;
  
  public class Payment extends RouteBuilder {
  	@Override
  	public void configure() throws Exception {
  		LRASagaService service = new LRASagaService();
  		service.setCoordinatorUrl("http://lra-coordinator");
  		service.setLocalParticipantUrl("http://payment");
  		getContext().addService(service);
  
  		rest("/api/").post("/pay")
                      .param().type(RestParamType.query).name("type").required(true).endParam()
                      .param().type(RestParamType.header).name("id").required(true).endParam()
                      .to("direct:pay");
  
  		from("direct:pay")
                      .saga()
                          .propagation(SagaPropagation.MANDATORY)
                          .option("id", header("id"))
                          .compensation("direct:cancelPayment")
                      .log("Paying ${header.type} for order #${header.id}")
                      .choice()
                          .when(x -> Math.random() >= 0.85)
                              .throwException(new RuntimeException("Random failure during payment"))
                      .end();
  
                  from("direct:cancelPayment")
                      .log("Payment #${header.id} has been cancelled");
  	}
  }