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.component.sjms.tx;
  
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
  import org.apache.camel.CamelContext;
  import org.apache.camel.Exchange;
  import org.apache.camel.Processor;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.component.sjms.SjmsComponent;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public abstract class TransactedConsumerSupport extends CamelTestSupport {
  
      protected final Logger log = LoggerFactory.getLogger(getClass());
  
      public abstract String getBrokerUri();
  
      protected void runTest(
              String destinationName, int routeCount, int messageCount, int totalRedeliverdFalse, int totalRedeliveredTrue,
              int concurrentConsumers, int maxAttemptsCount)
              throws Exception {
          // The CountDownLatch is used to make our final assertions await
          // unit all the messages have been processed. It is also
          // set to time out on the await. Our values are multiplied
          // by the number of routes we have.
          CountDownLatch latch = new CountDownLatch((totalRedeliverdFalse * routeCount));
  
          for (int i = 1; i <= routeCount; i++) {
              // We add a route here so we can pass our latch into it.
              addRoute(destinationName, i, concurrentConsumers, maxAttemptsCount, latch);
              // Create mock endpoints for the before and after
              getMockEndpoint("mock:test.before." + i).expectedMessageCount(totalRedeliverdFalse);
              getMockEndpoint("mock:test.after." + i).expectedMessageCount(totalRedeliveredTrue);
          }
  
          // We should never see a message here or something is
          // wrong with the JMS provider.
          getMockEndpoint("mock:test.after").expectedMessageCount(0);
  
          // Send only 10 messages
          for (int i = 1; i <= messageCount; i++) {
              String message = "Hello World " + i;
              template.sendBody("direct:start?block=false", message);
              log.trace("Sending message: {}", message);
          }
  
          // Await on our countdown for 20 seconds at most then move on
          log.info("Waiting for latch to count down from: {}", latch.getCount());
          boolean zero = latch.await(20, TimeUnit.SECONDS);
          log.info("Latch wait done: {} with count: {}", zero, latch.getCount());
  
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @Override
      protected CamelContext createCamelContext() throws Exception {
          CamelContext camelContext = super.createCamelContext();
  
          ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(getBrokerUri());
  
          SjmsComponent component = new SjmsComponent();
          component.setConnectionFactory(connectionFactory);
          camelContext.addComponent("sjms", component);
  
          return camelContext;
      }
  
      protected void addRoute(
              final String destinationName, final int routeNumber, final int concurrentConsumers,
              final int maxAttemptsCount, final CountDownLatch latch)
              throws Exception {
          context.addRoutes(new RouteBuilder() {
              @Override
              public void configure() {
  
                  if (context.getRoute("direct.route") == null) {
                      from("direct:start")
                              .id("direct.route")
                              .to(destinationName);
                  }
  
                  // Our test consumer route
                  from(destinationName + "?transacted=true&concurrentConsumers="
                       + concurrentConsumers)
                          .id("consumer.route." + routeNumber)
                          // first consume all the messages that are not redelivered
                          .choice().when(header("JMSRedelivered").isEqualTo("false"))
                          // The rollback processor
                          .log("Route " + routeNumber + " 1st attempt Body: ${body} | Redeliverd: ${header.JMSRedelivered}")
                          .to("mock:test.before." + routeNumber)
                          .process(new Processor() {
                              private final AtomicInteger counter = new AtomicInteger();
  
                              @Override
                              public void process(Exchange exchange) {
                                  if (counter.incrementAndGet() == maxAttemptsCount) {
                                      log.info(
                                              "{} Messages have been processed. Failing the exchange to force a rollback of the transaction.",
                                              maxAttemptsCount);
                                      throw new IllegalArgumentException("Forced rollback");
                                  }
  
                                  // Countdown the latch
                                  latch.countDown();
                              }
                          })
                          // Now process again any messages that were redelivered
                          .when(header("JMSRedelivered").isEqualTo("true"))
                          .log("Route " + routeNumber + " 2nd attempt Body: ${body} | Redeliverd: ${header.JMSRedelivered}")
                          .to("mock:test.after." + routeNumber)
                          .process(new Processor() {
                              @Override
                              public void process(Exchange exchange) {
  
                                  // Countdown the latch
                                  latch.countDown();
                              }
                          })
                          .otherwise()
                          .to("mock:test.after");
              }
          });
      }
  }
  