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.mqtt;
  
  import org.fusesource.mqtt.client.BlockingConnection;
  import org.fusesource.mqtt.client.MQTT;
  import org.fusesource.mqtt.client.Message;
  import org.fusesource.mqtt.client.QoS;
  import org.fusesource.mqtt.client.Topic;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.lang.invoke.MethodHandles;
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class MQTTMaxInFlightPublishesTest extends MQTTTestSupport {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     @Test
     @Timeout(60)
     public void testCustomDefaultMaximumInFlightPublishMessages() throws Exception {
        final MQTT subscriberClient = createMQTTConnection("MQTT-Sub-Client", false);
        final MQTT publisherClient = createMQTTConnection("MQTT-Pub-Client", false);
  
        BlockingConnection subscriberConn = subscriberClient.blockingConnection();
        subscriberConn.connect();
  
        String topic = "TopicA";
        subscriberConn.subscribe(new Topic[]{new Topic(topic, QoS.AT_LEAST_ONCE)});
  
        BlockingConnection publisherConn = publisherClient.blockingConnection();
        publisherConn.connect();
  
        publisherConn.publish(topic, new byte[]{1}, QoS.AT_LEAST_ONCE, false);
        publisherConn.publish(topic, new byte[]{2}, QoS.AT_LEAST_ONCE, false);
        publisherConn.publish(topic, new byte[]{3}, QoS.AT_LEAST_ONCE, false);
        publisherConn.publish(topic, new byte[]{4}, QoS.AT_LEAST_ONCE, false);
  
        Message msg1 = subscriberConn.receive();
        assertEquals(1, msg1.getPayload()[0]);
        Message msg2 = subscriberConn.receive();
        assertEquals(2, msg2.getPayload()[0]);
  
        Message msg3 = subscriberConn.receive(100, TimeUnit.MILLISECONDS);
        assertNull(msg3);
  
        msg1.ack();
        msg3 = subscriberConn.receive();
        assertEquals(3, msg3.getPayload()[0]);
  
        Message msg4 = subscriberConn.receive(100, TimeUnit.MILLISECONDS);
        assertNull(msg4);
  
        msg3.ack();
        msg4 = subscriberConn.receive();
        assertEquals(4, msg4.getPayload()[0]);
  
  
        subscriberConn.disconnect();
        publisherConn.disconnect();
  
     }
  
     @Override
     protected void addMQTTConnector() throws Exception {
        server.getConfiguration().addAcceptorConfiguration("MQTT", "tcp://localhost:" + port + "?protocols=MQTT;anycastPrefix=anycast:;multicastPrefix=multicast:;defaultMaximumInFlightPublishMessages=2");
  
        logger.debug("Added MQTT connector to broker");
     }
  }
  