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.mina;
  
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  import java.util.concurrent.Future;
  
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class MinaProducerConcurrentTest extends BaseMinaTest {
  
      @Test
      public void testNoConcurrentProducers() throws Exception {
          doSendMessages(1, 1);
      }
  
      @Test
      public void testConcurrentProducers() throws Exception {
          doSendMessages(10, 5);
      }
  
      private void doSendMessages(int files, int poolSize) throws Exception {
          getMockEndpoint("mock:result").expectedMessageCount(files);
  
          ExecutorService executor = Executors.newFixedThreadPool(poolSize);
          // we access the responses Map below only inside the main thread,
          // so no need for a thread-safe Map implementation
          Map<Integer, Future<String>> responses = new HashMap<>();
          for (int i = 0; i < files; i++) {
              final int index = i;
              Future<String> out = executor.submit(() -> {
                  final String uri = String.format("mina:tcp://localhost:%1$s?sync=true", getPort());
                  return template.requestBody(uri, index, String.class);
              });
              responses.put(index, out);
          }
  
          MockEndpoint.assertIsSatisfied(context);
          assertEquals(files, responses.size());
  
          // get all responses
          Set<String> unique = new HashSet<>();
          for (Future<String> future : responses.values()) {
              unique.add(future.get());
          }
  
          // should be 'files' unique responses
          assertEquals(files, unique.size(), "Should be " + files + " unique responses");
          executor.shutdownNow();
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
  
              public void configure() {
                  fromF("mina:tcp://localhost:%1$s?sync=true&objectCodecPattern=*", getPort()).process(exchange -> {
                      String body = exchange.getIn().getBody(String.class);
                      exchange.getMessage().setBody("Bye " + body);
                  }).to("mock:result");
              }
          };
      }
  }
  