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.consumer;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.Future;
  
  import org.apache.camel.CamelContext;
  import org.apache.camel.EndpointInject;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.component.sjms.support.JmsTestSupport;
  import org.junit.jupiter.api.Test;
  
  import static org.apache.camel.test.junit5.TestSupport.body;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  /**
   * Concurrent consumer with JMSReply test.
   */
  public class InOutConcurrentConsumerTest extends JmsTestSupport {
  
      @EndpointInject("mock:result")
      MockEndpoint result;
  
      @Test
      public void testConcurrent() throws Exception {
          doSendMessages(10, 5);
      }
  
      private void doSendMessages(int messages, int poolSize) throws Exception {
  
          result.expectedMessageCount(messages);
          result.expectsNoDuplicates(body());
  
          ExecutorService executor = Executors.newFixedThreadPool(poolSize);
          final List<Future<String>> futures = new ArrayList<>();
          for (int i = 0; i < messages; i++) {
              final int index = i;
              Future<String> out = executor.submit(() -> template.requestBody("direct:start", "Message " + index, String.class));
              futures.add(out);
          }
  
          MockEndpoint.assertIsSatisfied(context);
  
          for (int i = 0; i < futures.size(); i++) {
              Object out = futures.get(i).get();
              assertEquals("Bye Message " + i, out);
          }
          executor.shutdownNow();
      }
  
      @Override
      protected CamelContext createCamelContext() throws Exception {
          return super.createCamelContext();
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
              public void configure() {
                  from("direct:start")
                          .to("sjms:a.InOutConcurrentConsumerTest?replyToConcurrentConsumers=5&replyTo=myResponse")
                          .to("mock:result");
  
                  from("sjms:a.InOutConcurrentConsumerTest?concurrentConsumers=5")
                          .process(exchange -> {
                              String body = exchange.getIn().getBody(String.class);
                              // sleep a little to simulate heavy work and force concurrency processing
                              Thread.sleep(1000);
                              exchange.getMessage().setBody("Bye " + body);
                              exchange.getMessage().setHeader("threadName", Thread.currentThread().getName());
                          });
              }
          };
      }
  
  }
  