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.assertNotNull;
  
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.core.server.Queue;
  import org.apache.activemq.artemis.tests.util.Wait;
  import org.apache.activemq.transport.amqp.client.AmqpClient;
  import org.apache.activemq.transport.amqp.client.AmqpConnection;
  import org.apache.activemq.transport.amqp.client.AmqpMessage;
  import org.apache.activemq.transport.amqp.client.AmqpReceiver;
  import org.apache.activemq.transport.amqp.client.AmqpSender;
  import org.apache.activemq.transport.amqp.client.AmqpSession;
  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;
  
  /**
   * Tests for handling of the AMQP message priority header.
   */
  public class AmqpMessagePriorityTest extends AmqpClientTestSupport {
  
     protected static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     private static final int MIN_LARGE_MESSAGE_SIZE = 16384;
  
     @Override
     protected void configureAMQPAcceptorParameters(Map<String, Object> params) {
        params.put("amqpMinLargeMessageSize", MIN_LARGE_MESSAGE_SIZE);
     }
  
     @Test
     @Timeout(60)
     public void testMessageDefaultPriority() throws Exception {
        AmqpClient client = createAmqpClient();
        AmqpConnection connection = addConnection(client.connect());
        AmqpSession session = connection.createSession();
  
        AmqpSender sender = session.createSender(getQueueName());
  
        AmqpMessage message = new AmqpMessage();
        message.setMessageId("MessageID:1");
        message.setPriority((short) 4);
  
        sender.send(message);
        sender.close();
  
        Queue queueView = getProxyToQueue(getQueueName());
        Wait.assertEquals(1L, queueView::getMessageCount, 5000, 10);
  
        AmqpReceiver receiver = session.createReceiver(getQueueName());
  
        receiver.flow(1);
        AmqpMessage receive = receiver.receive(5, TimeUnit.SECONDS);
        assertNotNull(receive);
        assertEquals((short) 4, receive.getPriority());
        receiver.close();
  
        assertEquals(1, queueView.getMessageCount());
  
        connection.close();
     }
  
     @Test
     @Timeout(60)
     public void testMessagePriorityPreservedAfterServerRestart() throws Exception {
        AmqpClient client = createAmqpClient();
        AmqpConnection connection = addConnection(client.connect());
        AmqpSession session = connection.createSession();
  
        AmqpSender sender = session.createSender(getQueueName());
  
        AmqpMessage message = new AmqpMessage();
        message.setDurable(true);
        message.setMessageId("MessageID:1");
        message.setPriority((short) 7);
  
        sender.send(message);
        sender.close();
        connection.close();
  
        server.stop();
        server.start();
  
        client = createAmqpClient();
        connection = addConnection(client.connect());
        session = connection.createSession();
  
        AmqpReceiver receiver = session.createReceiver(getQueueName());
  
        Queue queueView = getProxyToQueue(getQueueName());
        assertEquals(1, queueView.getMessageCount());
  
        receiver.flow(1);
        AmqpMessage receive = receiver.receive(5, TimeUnit.SECONDS);
        assertNotNull(receive);
        assertEquals((short) 7, receive.getPriority());
        receiver.close();
  
        assertEquals(1, queueView.getMessageCount());
  
        connection.close();
     }
  
     @Test
     @Timeout(60)
     public void testMessageNonDefaultPriority() throws Exception {
  
        AmqpClient client = createAmqpClient();
        AmqpConnection connection = addConnection(client.connect());
        AmqpSession session = connection.createSession();
  
        AmqpSender sender = session.createSender(getQueueName());
  
        AmqpMessage message = new AmqpMessage();
        message.setMessageId("MessageID:1");
        message.setPriority((short) 0);
  
        sender.send(message);
        sender.close();
  
        Queue queueView = getProxyToQueue(getQueueName());
        Wait.assertEquals(1L, queueView::getMessageCount, 5000, 10);
  
        AmqpReceiver receiver = session.createReceiver(getQueueName());
  
        receiver.flow(1);
        AmqpMessage receive = receiver.receive(5, TimeUnit.SECONDS);
        assertNotNull(receive);
        assertEquals((short) 0, receive.getPriority());
        receiver.close();
  
        assertEquals(1, queueView.getMessageCount());
  
        connection.close();
     }
  
     @Test
     @Timeout(60)
     public void testMessageWithVeryHighPriority() throws Exception {
  
        AmqpClient client = createAmqpClient();
        AmqpConnection connection = addConnection(client.connect());
        AmqpSession session = connection.createSession();
  
        AmqpSender sender = session.createSender(getQueueName());
  
        AmqpMessage message = new AmqpMessage();
        message.setMessageId("MessageID:1");
        message.setPriority((short) 99);
  
        sender.send(message);
        sender.close();
  
        Queue queueView = getProxyToQueue(getQueueName());
        Wait.assertEquals(1L, queueView::getMessageCount, 5000, 10);
  
        AmqpReceiver receiver = session.createReceiver(getQueueName());
        receiver.flow(1);
        AmqpMessage receive = receiver.receive(5, TimeUnit.SECONDS);
        assertNotNull(receive);
        assertEquals(99, receive.getPriority());
        receiver.close();
  
        assertEquals(1, queueView.getMessageCount());
  
        connection.close();
     }
  
     @Test
     @Timeout(60)
     public void testMessageNoPriority() throws Exception {
  
        AmqpClient client = createAmqpClient();
        AmqpConnection connection = addConnection(client.connect());
        AmqpSession session = connection.createSession();
  
        AmqpSender sender = session.createSender(getQueueName());
  
        AmqpMessage message = new AmqpMessage();
        message.setMessageId("MessageID:1");
  
        sender.send(message);
        sender.close();
  
        Queue queueView = getProxyToQueue(getQueueName());
        Wait.assertEquals(1L, queueView::getMessageCount, 5000, 10);
  
        AmqpReceiver receiver = session.createReceiver(getQueueName());
  
        receiver.flow(1);
        AmqpMessage receive = receiver.receive(5, TimeUnit.SECONDS);
        assertNotNull(receive);
        assertEquals((short) 4, receive.getPriority());
        receiver.close();
  
        assertEquals(1, queueView.getMessageCount());
  
        connection.close();
     }
  
     @Test
     @Timeout(60)
     public void testMessagePriorityOrdering() throws Exception {
        doTestMessagePriorityOrdering(false);
     }
  
     @Test
     @Timeout(60)
     public void testMessagePriorityOrderingForLargeMessages() throws Exception {
        doTestMessagePriorityOrdering(true);
     }
  
     private void doTestMessagePriorityOrdering(boolean largeMessages) throws Exception {
        final AmqpClient client = createAmqpClient();
        final AmqpConnection connection = addConnection(client.connect());
        final AmqpSession session = connection.createSession();
        final AmqpSender sender = session.createSender(getQueueName());
  
        final int priorityLevels = 10;
        final int bodySize = largeMessages ? MIN_LARGE_MESSAGE_SIZE + 10 : 10;
        final String body = "#".repeat(bodySize);
  
        for (short i = 0; i < priorityLevels; ++i) {
           final AmqpMessage message = new AmqpMessage();
  
           message.setMessageId("MessageID:" + i);
           message.setPriority(i);
           message.setText(body);
  
           sender.send(message);
        }
  
        sender.close();
  
        final Queue queueView = getProxyToQueue(getQueueName());
  
        Wait.assertEquals(10L, queueView::getMessageCount, 5000, 10);
  
        final AmqpReceiver receiver = session.createReceiver(getQueueName());
  
        receiver.flow(10);
  
        for (int i = priorityLevels - 1; i >= 0; --i) {
           final AmqpMessage received = receiver.receive(5, TimeUnit.SECONDS);
  
           assertNotNull(received);
           assertEquals((short) i, received.getPriority());
           assertEquals(body, received.getText());
  
           received.accept();
        }
  
        receiver.close();
  
        Wait.assertEquals(0L, queueView::getMessageCount, 5000, 10);
  
        connection.close();
     }
  
     @Test
     @Timeout(30)
     public void testMessagePriorityAppliedAfterServerRestart() throws Exception {
        doTestMessagePriorityAppliedAfterServerRestart(false);
     }
  
     @Test
     @Timeout(30)
     public void testLargeMessagePriorityAppliedAfterServerRestart() throws Exception {
        doTestMessagePriorityAppliedAfterServerRestart(true);
     }
  
     public void doTestMessagePriorityAppliedAfterServerRestart(boolean largeMessages) throws Exception {
        final AmqpClient client = createAmqpClient();
  
        final int priorityLevels = 10;
        final int bodySize = largeMessages ? MIN_LARGE_MESSAGE_SIZE + 10 : 10;
        final String body = "#".repeat(bodySize);
  
        {
           final AmqpConnection connection = addConnection(client.connect());
           final AmqpSession session = connection.createSession();
           final AmqpSender sender = session.createSender(getQueueName());
           final Queue queueView = getProxyToQueue(getQueueName());
  
           for (int priority = 0; priority < priorityLevels; ++priority) {
              AmqpMessage message = new AmqpMessage();
              message.setDurable(true);
              message.setMessageId("MessageID:" + priority);
              message.setPriority((short) priority);
              message.setText(body);
  
              sender.send(message);
           }
  
           Wait.assertEquals((long) priorityLevels, queueView::getMessageCount, 2_000, 10);
  
           sender.close();
           connection.close();
        }
  
        server.stop();
        server.start();
  
        {
           final Queue queueView = getProxyToQueue(getQueueName());
           final AmqpConnection connection = addConnection(client.connect());
           final AmqpSession session = connection.createSession();
           final AmqpReceiver receiver = session.createReceiver(getQueueName());
  
           Wait.assertEquals((long)priorityLevels, () -> queueView.getMessageCount(), 2_000, 100);
  
           receiver.flow(priorityLevels);
  
           for (int priority = priorityLevels - 1; priority >= 0; --priority) {
              final AmqpMessage message = receiver.receive(5, TimeUnit.SECONDS);
  
              assertNotNull(message);
              assertEquals(priority, message.getPriority());
              assertEquals("MessageID:" + priority, message.getMessageId());
  
              logger.info("Read message with priority = {}", message.getPriority());
  
              message.accept();
           }
  
           receiver.close();
           connection.close();
  
           Wait.assertEquals((long) 0, queueView::getMessageCount, 2_000, 10);
        }
     }
  }
  