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.activemq.artemis.tests.integration.amqp;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  import java.lang.reflect.Field;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.CyclicBarrier;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
  import org.apache.activemq.artemis.api.core.ActiveMQBuffers;
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.protocol.amqp.broker.AMQPMessage;
  import org.apache.activemq.artemis.protocol.amqp.broker.AMQPMessagePersisterV2;
  import org.apache.activemq.artemis.protocol.amqp.broker.AMQPStandardMessage;
  import org.apache.activemq.artemis.utils.RandomUtil;
  import org.junit.jupiter.api.Test;
  
  public class ParseAppMultiThread {
  
  
     @Test
     public void testMultiThreadParsing() throws Exception {
  
        for (int rep = 0; rep < 500; rep++) {
           String randomStr = RandomUtil.randomUUIDString();
           Map map = new HashMap();
           map.put("color", randomStr);
           for (int i = 0; i < 10; i++) {
              map.put("stuff" + i, "value" + i); // just filling stuff
           }
           AMQPStandardMessage originalMessage = AMQPStandardMessage.createMessage(1, 0, SimpleString.of("duh"), null, null, null, null, map, null, null);
  
  
           // doing a round trip that would be made through persistence
           AMQPMessagePersisterV2 persister = AMQPMessagePersisterV2.getInstance();
  
           ActiveMQBuffer buffer = ActiveMQBuffers.dynamicBuffer(1024);
           persister.encode(buffer, originalMessage);
           buffer.readerIndex(1);
  
           AMQPStandardMessage amqpStandardMessage = (AMQPStandardMessage) persister.decode(buffer, null, null);
  
  
           if (rep == 0) {
              // it is enough to check the first time only
              // this is to make sure the message does not have application properties parsed
              Field field = AMQPMessage.class.getDeclaredField("applicationProperties");
              field.setAccessible(true);
              assertNull(field.get(amqpStandardMessage));
           }
  
  
           Thread[] threads = new Thread[0];
           CyclicBarrier barrier = threads.length > 0 ? new CyclicBarrier(threads.length) : null;
  
           AtomicInteger errors = new AtomicInteger(0);
  
           for (int i = 0; i < threads.length; i++) {
              Runnable r = () -> {
                 try {
                    barrier.await();
                    assertEquals(randomStr, amqpStandardMessage.getObjectProperty(SimpleString.of("color")));
                 } catch (Throwable e) {
                    e.printStackTrace();
                    errors.incrementAndGet();
                 }
              };
  
              threads[i] = new Thread(r);
              threads[i].start();
           }
  
           for (Thread t : threads) {
              t.join();
           }
  
           assertEquals(randomStr, amqpStandardMessage.getObjectPropertyForFilter(SimpleString.of("color")));
           assertEquals(0, errors.get());
        }
  
     }
  
  }
  