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.mqtt5.spec;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.tests.integration.mqtt5.MQTT5TestSupport;
  import org.apache.activemq.artemis.utils.RandomUtil;
  import org.eclipse.paho.mqttv5.client.MqttClient;
  import org.eclipse.paho.mqttv5.client.MqttConnectionOptions;
  import org.eclipse.paho.mqttv5.client.MqttConnectionOptionsBuilder;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  public class MessageDeliveryRetryTests extends MQTT5TestSupport {
  
     /*
      * [MQTT-4.4.0-1] When a Client reconnects with Clean Start set to 0 and a session is present, both the Client and
      * Server MUST resend any unacknowledged PUBLISH packets (where QoS > 0) and PUBREL packets using their original
      * Packet Identifiers. This is the only circumstance where a Client or Server is REQUIRED to resend messages.
      * Clients and Servers MUST NOT resend messages at any other time.
      */
     @Test
     @Timeout(DEFAULT_TIMEOUT_SEC)
     public void testCleanStartFalseWithReconnect() throws Exception {
        final String CONSUMER_ID = RandomUtil.randomUUIDString();
        final String TOPIC = this.getTopicName();
  
        final CountDownLatch latch = new CountDownLatch(1);
        MqttClient producer = createPahoClient(RandomUtil.randomUUIDString());
        MqttClient consumer = createPahoClient(CONSUMER_ID);
        MqttConnectionOptions options = new MqttConnectionOptionsBuilder()
           .cleanStart(false)
           .sessionExpiryInterval(300L)
           .build();
        consumer.connect(options);
        consumer.subscribe(TOPIC, 2);
        consumer.disconnect();
  
        // session should still exist since session expiry interval > 0
        assertEquals(1, getSessionStates().size());
        assertNotNull(getSessionStates().get(CONSUMER_ID));
  
        producer.connect();
        producer.publish(TOPIC, "hello".getBytes(), 2, false);
        producer.disconnect();
        producer.close();
  
        // session should still exist since session expiry interval > 0
        assertEquals(1, getSessionStates().size());
        assertNotNull(getSessionStates().get(CONSUMER_ID));
  
        // consumer should resume previous session (i.e. get the messages sent to the queue where it was previously subscribed)
        consumer.setCallback(new LatchedMqttCallback(latch));
        consumer.connect(options);
        waitForLatch(latch);
        consumer.disconnect();
        consumer.close();
  
        // session should still exist since session expiry interval > 0
        assertEquals(1, getSessionStates().size());
        assertNotNull(getSessionStates().get(CONSUMER_ID));
     }
  
     /*
      * [MQTT-4.4.0-2] If PUBACK or PUBREC is received containing a Reason Code of 0x80 or greater the corresponding
      * PUBLISH packet is treated as acknowledged, and MUST NOT be retransmitted.
      */
     @Test
     @Timeout(DEFAULT_TIMEOUT_SEC)
     public void testTopicFilter() throws Exception {
        final String CONSUMER_ID = RandomUtil.randomUUIDString();
        final String TOPIC = this.getTopicName();
  
        final CountDownLatch latch = new CountDownLatch(1);
        MqttClient consumer = createPahoClient(CONSUMER_ID);
        consumer.connect();
        consumer.setCallback(new LatchedMqttCallback(latch));
        consumer.subscribe(TOPIC, 1);
  
        MqttClient producer = createPahoClient("producer");
        producer.connect();
        producer.publish(TOPIC, "hello".getBytes(), 1, false);
        producer.disconnect();
        producer.close();
  
        assertTrue(latch.await(1, TimeUnit.SECONDS));
        consumer.disconnect();
        consumer.close();
     }
  }
  